Organic compounds that include a cyclic ether with three ring atoms in their structure. They are commonly used as precursors for POLYMERS such as EPOXY RESINS.
Enzymes that catalyze reversibly the formation of an epoxide or arene oxide from a glycol or aromatic diol, respectively.
Polymeric resins derived from OXIRANES and characterized by strength and thermosetting properties. Epoxy resins are often used as dental materials.
7,8,8a,9a-Tetrahydrobenzo(10,11)chryseno (3,4-b)oxirene-7,8-diol. A benzopyrene derivative with carcinogenic and mutagenic activity.
OXIDOREDUCTASES which mediate vitamin K metabolism by converting inactive vitamin K 2,3-epoxide to active vitamin K.
The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)
The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.
1,2-Benzphenanthrenes. POLYCYCLIC COMPOUNDS obtained from coal tar.
An oxidation product of HEPTACHLOR formed by many plants and animals, including humans, after exposure to HEPTACHLOR. It has been shown to remain in soil treated with HEPTACHLOR for over fifteen years and is toxic to animals and humans. (From ATSDR Public Heath Statement, April 1989)
A class of chemicals that contain an anthracene ring with a naphthalene ring attached to it.
The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups.
Inorganic or organic compounds that contain sulfur as an integral part of the molecule.
Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed.
Compounds of the general formula R-O-R arranged in a ring or crown formation.
A 20-carbon-chain fatty acid, unsaturated at positions 8, 11, and 14. It differs from arachidonic acid, 5,8,11,14-eicosatetraenoic acid, only at position 5.
Organic compounds that have a relatively high VAPOR PRESSURE at room temperature.
Closed vesicles of fragmented endoplasmic reticulum created when liver cells or tissue are disrupted by homogenization. They may be smooth or rough.
Compounds consisting of two or more fused ring structures.
The chemical alteration of an exogenous substance by or in a biological system. The alteration may inactivate the compound or it may result in the production of an active metabolite of an inactive parent compound. The alterations may be divided into METABOLIC DETOXICATION, PHASE I and METABOLIC DETOXICATION, PHASE II.
Spectroscopic method of measuring the magnetic moment of elementary particles such as atomic nuclei, protons or electrons. It is employed in clinical applications such as NMR Tomography (MAGNETIC RESONANCE IMAGING).
Chemical agents that increase the rate of genetic mutation by interfering with the function of nucleic acids. A clastogen is a specific mutagen that causes breaks in chromosomes.
Substances that increase the risk of NEOPLASMS in humans or animals. Both genotoxic chemicals, which affect DNA directly, and nongenotoxic chemicals, which induce neoplasms by other mechanism, are included.
Four fused benzyl rings with three linear and one angular, that can be viewed as a benzyl-phenanthrenes. Compare with NAPHTHACENES which are four linear rings.
Benzopyrenes saturated in any two adjacent positions and substituted with two hydroxyl groups in any position. The majority of these compounds have carcinogenic or mutagenic activity.
The products of chemical reactions that result in the addition of extraneous chemical groups to DNA.
(2S-(2 alpha,3 beta(1E,3E,5Z,8Z)))-3-(1,3,5,8-Tetradecatetraenyl)oxiranebutanoic acid. An unstable allylic epoxide, formed from the immediate precursor 5-HPETE via the stereospecific removal of a proton at C-10 and dehydration. Its biological actions are determined primarily by its metabolites, i.e., LEUKOTRIENE B4 and cysteinyl-leukotrienes. Alternatively, leukotriene A4 is converted into LEUKOTRIENE C4 by glutathione-S-transferase or into 5,6-di-HETE by the epoxide-hydrolase. (From Dictionary of Prostaglandins and Related Compounds, 1990)
Benzene derivatives that include one or more hydroxyl groups attached to the ring structure.
A concave exterior region on some POLYCYCLIC AROMATIC HYDROCARBONS that have three phenyl rings in a non-linear arrangement.
The rate dynamics in chemical or physical systems.
Concentrated pharmaceutical preparations of plants obtained by removing active constituents with a suitable solvent, which is evaporated away, and adjusting the residue to a prescribed standard.
A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.
A tricyclo bridged hydrocarbon.
Unsaturated hydrocarbons of the type Cn-H2n, indicated by the suffix -ene. (Grant & Hackh's Chemical Dictionary, 5th ed, p408)
The concentration of a compound needed to reduce population growth of organisms, including eukaryotic cells, by 50% in vitro. Though often expressed to denote in vitro antibacterial activity, it is also used as a benchmark for cytotoxicity to eukaryotic cells in culture.
Preclinical testing of drugs in experimental animals or in vitro for their biological and toxic effects and potential clinical applications.
Widely distributed enzymes that carry out oxidation-reduction reactions in which one atom of the oxygen molecule is incorporated into the organic substrate; the other oxygen atom is reduced and combined with hydrogen ions to form water. They are also known as monooxygenases or hydroxylases. These reactions require two substrates as reductants for each of the two oxygen atoms. There are different classes of monooxygenases depending on the type of hydrogen-providing cosubstrate (COENZYMES) required in the mixed-function oxidation.
Six-carbon alicyclic hydrocarbons which contain one or more double bonds in the ring. The cyclohexadienes are not aromatic, in contrast to BENZOQUINONES which are sometimes called 2,5-cyclohexadiene-1,4-diones.
A group of compounds consisting in part of two rings sharing one atom (usually a carbon) in common.
Compounds containing the -SH radical.
A family of phylloquinones that contains a ring of 2-methyl-1,4-naphthoquinone and an isoprenoid side chain. Members of this group of vitamin K 1 have only one double bond on the proximal isoprene unit. Rich sources of vitamin K 1 include green plants, algae, and photosynthetic bacteria. Vitamin K1 has antihemorrhagic and prothrombogenic activity.
The relationship between the dose of an administered drug and the response of the organism to the drug.
A potent hepatotoxic and hepatocarcinogenic mycotoxin produced by the Aspergillus flavus group of fungi. It is also mutagenic, teratogenic, and causes immunosuppression in animals. It is found as a contaminant in peanuts, cottonseed meal, corn, and other grains. The mycotoxin requires epoxidation to aflatoxin B1 2,3-oxide for activation. Microsomal monooxygenases biotransform the toxin to the less toxic metabolites aflatoxin M1 and Q1.
A superfamily of hundreds of closely related HEMEPROTEINS found throughout the phylogenetic spectrum, from animals, plants, fungi, to bacteria. They include numerous complex monooxygenases (MIXED FUNCTION OXYGENASES). In animals, these P-450 enzymes serve two major functions: (1) biosynthesis of steroids, fatty acids, and bile acids; (2) metabolism of endogenous and a wide variety of exogenous substrates, such as toxins and drugs (BIOTRANSFORMATION). They are classified, according to their sequence similarities rather than functions, into CYP gene families (>40% homology) and subfamilies (>59% homology). For example, enzymes from the CYP1, CYP2, and CYP3 gene families are responsible for most drug metabolism.
An anticonvulsant used to control grand mal and psychomotor or focal seizures. Its mode of action is not fully understood, but some of its actions resemble those of PHENYTOIN; although there is little chemical resemblance between the two compounds, their three-dimensional structure is similar.
A potent mutagen and carcinogen. It is a public health concern because of its possible effects on industrial workers, as an environmental pollutant, an as a component of tobacco smoke.
Ring compounds having atoms other than carbon in their nuclei. (Grant & Hackh's Chemical Dictionary, 5th ed)
The characteristic three-dimensional shape of a molecule.
An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.
Large collections of small molecules (molecular weight about 600 or less), of similar or diverse nature which are used for high-throughput screening analysis of the gene function, protein interaction, cellular processing, biochemical pathways, or other chemical interactions.
Tests of chemical substances and physical agents for mutagenic potential. They include microbial, insect, mammalian cell, and whole animal tests.
Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction.
Changing an open-chain hydrocarbon to a closed ring. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)
The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Organic compounds which contain tin in the molecule. Used widely in industry and agriculture.
12-Carbon saturated monocarboxylic acids.
A characteristic feature of enzyme activity in relation to the kind of substrate on which the enzyme or catalytic molecule reacts.

Alterations of heart function and Na+-K+-ATPase activity by etomoxir in diabetic rats. (1/1319)

To examine the role of changes in myocardial metabolism in cardiac dysfunction in diabetes mellitus, rats were injected with streptozotocin (65 mg/kg body wt) to induce diabetes and were treated 2 wk later with the carnitine palmitoyltransferase inhibitor (carnitine palmitoyltransferase I) etomoxir (8 mg/kg body wt) for 4 wk. Untreated diabetic rats exhibited a reduction in heart rate, left ventricular systolic pressure, and positive and negative rate of pressure development and an increase in end-diastolic pressure. The sarcolemmal Na+-K+-ATPase activity was depressed and was associated with a decrease in maximal density of binding sites (Bmax) value for high-affinity sites for [3H]ouabain, whereas Bmax for low-affinity sites was unaffected. Treatment of diabetic animals with etomoxir partially reversed the depressed cardiac function with the exception of heart rate. The high serum triglyceride and free fatty acid levels were reduced, whereas the levels of glucose, insulin, and 3,3',-5-triiodo-L-thyronine were not affected by etomoxir in diabetic animals. The activity of Na+-K+-ATPase expressed per gram heart weight, but not per milligram sarcolemmal protein, was increased by etomoxir in diabetic animals. Furthermore, Bmax (per g heart wt) for both low-affinity and high-affinity binding sites in control and diabetic animals was increased by etomoxir treatment. Etomoxir treatment also increased the depressed left ventricular weight of diabetic rats and appeared to increase the density of the sarcolemma and transverse tubular system to normalize Na+-K+-ATPase activity. Therefore, a shift in myocardial substrate utilization may represent an important signal for improving the depressed cardiac function and Na+-K+-ATPase activity in diabetic rat hearts with impaired glucose utilization.  (+info)

In vitro reactions of butadiene monoxide with single- and double-stranded DNA: characterization and quantitation of several purine and pyrimidine adducts. (2/1319)

We have previously shown that butadiene monoxide (BM), the primary metabolite of 1,3-butadiene, reacted with nucleosides to form alkylation products that exhibited different rates of formation and different stabilities under in vitro physiological conditions. In the present study, BM was reacted with single-stranded (ss) and double-stranded (ds) calf thymus DNA and the alkylation products were characterized after enzymatic hydrolysis of the DNA. The primary products were regioisomeric N-7-guanine adducts. N-3-(2-hydroxy-3-buten-1-yl)adenine and N-3-(1-hydroxy-3-buten-2-yl)adenine, which were depurinated from the DNA more rapidly than the N-7-guanine adducts, were also formed. In addition, N6-(2-hydroxy-3-buten-1-yl)deoxyadenosine and N6-(1-hydroxy-3-buten-2-yl)deoxyadenosine were detected and evidence was obtained that these adducts were formed by Dimroth rearrangement of the corresponding N-1-deoxyadenosine adducts, not while in the DNA, but following the release of the N-1-alkylated nucleosides by enzymatic hydrolysis. N-3-(2-hydroxy-3-buten-1-yl)deoxyuridine adducts, which were apparently formed subsequent to deamination reactions of the corresponding deoxycytidine adducts, were also detected and were stable in the DNA. Adduct formation was linearly dependent upon BM concentration (10-1000 mM), with adduct ratios being similar at the various BM concentrations. At a high BM concentration (750 mM), the adducts were formed in a linear fashion for up to 8 h in both ssDNA and dsDNA. However, the rates of formation of the N-3-deoxyuridine and N6-deoxyadenosine adducts increased 10- to 20-fold in ssDNA versus dsDNA, whereas the N-7-guanine adducts increased only slightly, presumably due to differences in hydrogen bonding in ssDNA versus dsDNA. These results may contribute to a better understanding of the molecular mechanisms of mutagenesis and carcinogenesis of both BM and its parent compound, 1,3-butadiene.  (+info)

Modification of left ventricular hypertrophy by chronic etomixir treatment. (3/1319)

1. Etomoxir (2[6(4-chlorophenoxy)hexyl]oxirane-2-carboxylate), an irreversible carnitine palmitoyl-transferase 1 inhibitor, reduces the expression of the myocardial foetal gene programme and the functional deterioration during heart adaption to a pressure-overload. Etomoxir may, however, also improve the depressed myocardial function of hypertrophied ventricles after a prolonged pressure overload. 2. To test this hypothesis, we administered racemic etomoxir (15 mg kg(-1) day(-1) for 6 weeks) to rats with ascending aortic constriction beginning 6 weeks after imposing the pressure overload. 3. The right ventricular/body weight ratio increased (P<0.05) by 20% in etomoxir treated rats (n = 10) versus untreated rats with ascending aortic constriction (n = 10). Left ventricular weight was increased (P<0.05) by 8%. Etomoxir blunted the increase in left ventricular chamber volume. Etomoxir raised the proportion of V1 isomyosin (35+/-4% versus 24+/-2%; P<0.05) and decreased the percentage of V3 isomyosin (36+/-4% versus 48+/-3%; P<0.05). 4. Maximum isovolumically developed pressure was higher in etomoxir treated rats than in untreated pressure overloaded rats (371+/-22 versus 315+/-23 mmHg; P<0.05). Maximum rates of ventricular pressure development (14,800+/-1310 versus 12,340+/-1030mmHg s(-1); P<0.05) and decline (6440+/-750 versus 5040+/-710 mmHg s(-1); P<0.05) were increased as well. Transformation of pressure values to ventricular wall stress data revealed an improved myocardial function which could partially account for the enhanced function of the whole left ventricle. 5. The co-ordinated action of etomoxir on ventricular mass, geometry and myocardial phenotype enhanced thus the pressure generating capacity of hypertrophied pressure-overloaded left ventricles and delayed the deleterious dilative remodelling.  (+info)

Nonenzymatic reduction of benzo(a)pyrene diol-epoxides to trihydroxypentahydrobenzo(a)pyrenes by reduced nicotinamide adenine dinucleotide phosphate. (4/1319)

The diol-epoxide r-7,t-8-dihydroxy-t-9,10-oxy-7,8,9,10-tetrahydrobenzo(a)pyrene is a potent mutagen and possibly the ultimate carcinogenic form of benzo(a)pyrene. A (7/8,9)-trihydroxy-7,8,9,10,10-pentahydrobenzo(a)pyrene is formed from the diol-epoxide r-7,t-8-dihydroxy-t-9,10-oxy-7,8,9,10-tetrahydroxybenzo(a)pyrene by reduction with reduced nicotinamide adenine dinucleotide phosphate. Its formation is linear with reduced nicotinamide adenine dinucleotide phosphate concentration and does not require the presence of enzyme. A (7,9/8)-trihydroxy-7,8,9,10,10-pentahydrobenzo(a)pyrene is similarly formed from the diol-epoxide r-7,t-8-dihydroxy-c-9,10-oxy-7,8,9,10-tetrahydrobenzo(a)pyrene by reduction with reduced nicotinamide adenine dinucleotide phosphate. The structures of the trihydroxypentahydrobenzo(a)pyrenes were established by their ultraviolet absorption and mass spectra and their reaction with potassium triacetylosmate.  (+info)

Comparisons of flux control exerted by mitochondrial outer-membrane carnitine palmitoyltransferase over ketogenesis in hepatocytes and mitochondria isolated from suckling or adult rats. (5/1319)

The primary aim of this paper was to calculate and report flux control coefficients for mitochondrial outer-membrane carnitine palmitoyltransferase (CPT I) over hepatic ketogenesis because its role in controlling this pathway during the neonatal period is of academic importance and immediate clinical relevance. Using hepatocytes isolated from suckling rats as our model system, we measured CPT I activity and carbon flux from palmitate to ketone bodies and to CO2 in the absence and presence of a range of concentrations of etomoxir. (This is converted in situ to etomoxir-CoA which is a specific inhibitor of the enzyme.) From these data we calculated the individual flux control coefficients for CPT I over ketogenesis, CO2 production and total carbon flux (0.51 +/- 0.03; -1.30 +/- 0.26; 0.55 +/- 0.07, respectively) and compared them with equivalent coefficients calculated by similar analyses [Drynan, L., Quant, P.A. & Zammit, V.A. (1996) Biochem. J. 317, 791-795] in hepatocytes isolated from adult rats (0.85 +/- 0.20; 0.23 +/- 0.06; 1.06 +/- 0.29). CPT I exerts significantly less control over ketogenesis in hepatocytes isolated from suckling rats than those from adult rats. In the suckling systems the flux control coefficients for CPT I over ketogenesis specifically and over total carbon flux (< 0.6) are not consistent with the enzyme being rate-limiting. Broadly similar results were obtained and conclusions drawn by reanalysis of previous data {from experiments in mitochondria isolated from suckling or adult rats [Krauss, S., Lascelles, C.V., Zammit, V.A. & Quant, P.A. (1996) Biochem. J. 319, 427-433]} using a different approach of control analysis, although it is not strictly valid to compare flux control coefficients from different systems. Our overall conclusion is that flux control coefficients for CPT I over oxidative fluxes from palmitate (or palmitoyl-CoA) differ markedly according to (a) the metabolic state, (b) the stage of development, (c) the specific pathway studied and (d) the model system.  (+info)

Fatty acid oxidation affects food intake by altering hepatic energy status. (6/1319)

Inhibition of fatty acid oxidation stimulates feeding behavior in rats. To determine whether a decrease in hepatic fatty acid oxidation triggers this behavioral response, we compared the effects of different doses of methyl palmoxirate (MP), an inhibitor of fatty acid oxidation, on food intake with those on in vivo and in vitro liver and muscle metabolism. Administration of 1 mg/kg MP selectively decreased hepatic fatty acid oxidation but did not stimulate food intake. In contrast, feeding behavior increased in rats given 5 or 10 mg/kg MP, which inhibited hepatic fatty acid oxidation to the same extent as did the low dose but in addition suppressed fatty acid oxidation in muscle and produced a marked depletion of liver glycogen. Dose-related increases in food intake tracked dose-related reductions in liver ATP content, ATP-to-ADP ratio, and phosphorylation potential. The findings suggest that a decrease in hepatic fatty acid oxidation can stimulate feeding behavior by reducing hepatic energy production.  (+info)

A common pharmacophore for cytotoxic natural products that stabilize microtubules. (7/1319)

Taxol (paclitaxel), a complex diterpene obtained from the Pacific yew, Taxus brevifolia, is arguably the most important new drug in cancer chemotherapy. The mechanism of cytotoxic action for paclitaxel-i.e., the stabilization of microtubules leading to mitotic arrest-is now shared by four recently identified natural products, eleutherobin, epothilones A and B, and discodermolide. Their ability to competitively inhibit [3H]paclitaxel binding to microtubules strongly suggests the existence of a common binding site. Recently, we have developed nonaromatic analogues of paclitaxel that maintain high cytotoxicity and tubulin binding (e.g., nonataxel). We now propose a common pharmacophore that unites paclitaxel, nonataxel, the epothilones, eleutherobin, and discodermolide, and rationalizes the extensive structure-activity relationship data pertinent to these compounds. Insights from the common pharmacophore have enabled the development of a hybrid construct with demonstrated cytotoxic and tubulin-binding activity.  (+info)

An investigation of factors contributing to styrene and styrene-7,8-oxide exposures in the reinforced-plastics industry. (8/1319)

During the manufacturing of reinforced plastics, large amounts of styrene and trace quantities of styrene-7,8-oxide (SO) are released. Since previous work suggests that inhalation of even small amounts of SO might be an important health risk, we investigated several possible factors contributing to styrene and SO exposure during the manufacture of reinforced plastics. Factors related to job type, worker and the type and quantity of styrene-containing resins were investigated using mixed-effects multiple linear regression models. Overall, SO exposure levels were positively correlated with styrene exposure levels. However, this correlation was statistically significant only among hand laminators who had the highest exposures to both styrene and SO. An important factor for predicting both styrene and SO concentrations was the type of resin used, while the quantity of resin consumed was predictive of styrene but not of SO exposure. Since So exposure appears to be associated with factors other than coexposure to styrene, more effort should be placed on investigating emissions of SO per se. The type of mixed-models regression analysis employed in this study can be used for clarifying the underlying patterns for exposures to styrene and SO as well as for evaluating preventive measures.  (+info)

Global Epoxidized Soybean Oil Market report delineates the thorough and collective examination of Epoxidized Soybean Oil industry during the past, present and conjecture periods. All the business verticals like aggressive market situation, regional Epoxidized Soybean Oil nearness, and improvement openings are clarified. Top players of Epoxidized Soybean Oil industry, their business strategies, and growth opportunities are covered in this report. A report is incomplete without having the knowledge of the key players or competitors within the market. Many basic aspects build the market that drives the expansion of associate degree trade or an organization.. The Epoxidized Soybean Oil market report will provide one with overall market analysis, statistics, and every minute data relating to the Epoxidized Soybean Oil market necessary for forecasting its revenue, factors propelling & hampering its growth, key market players and much more.. Get an Exclusive Sample Copy of Epoxidized Soybean Oil ...
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bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, bisphenol S diglycidyl ether, brominated bisphenol A diglycidyl ether, brominated bisphenol F diglycidyl ether, brominated bisphenol S diglycidyl ether, hydrogenated bisphenol A diglycidyl ether, hydrogenated bisphenol F diglycidyl ether, hydrogenated bisphenol S diglycidyl ether, 1,4-butanediol diglycidyl ether, 1,6-hexanediol diglycidyl ether, glycerol triglycidyl ether, trimethylolpropane triglycidyl ether, polyethylene glycol diglycidyl ether, polypropylene glycol diglycidyl ethers; polydiglycidyl ethers of polyether polyol obtained by adding one or more alkylene oxides to an aliphatic polyhydric alcohol such as ethylene glycol, propylene glycol, and glycerol; diglycidyl esters of an aliphatic long-chain dibasic acid; mono-diglycidyl ethers of aliphatic higher alcohol; phenol, cresol, butyl phenol, or mono-glycidyl ethers of polyether alcohol obtained by adding an alkylene oxide to these; glycidyl esters of a higher fatty ...
Epoxidized Soybean Oil TCCs epoxidized soybean oil (ESO) is a non-toxic, clear to yellow liquid that is used as a plasticizer and stabilizer in plastic materials, especially PVC and its copolymers. ESO is also used as a pigment dispersing agent and acid/mercaptan scavenging agent as well as an epoxy reactive diluent. Epoxidized Soybean oil is the most readily available and one of the lowest-cost vegetable oils in the world. Epoxidized soybean oil is the result of the oxidation of soybean oil with hydrogen peroxide and either acetic or formic acid. ESO is industrially available in large volume at a relatively low price. Due to its low cost and biodegradability over traditional phthalate plasticizers, ESO is replacing dioctyl phthalate (DOP) in some applications. TCCs epoxidized soybean oil is a cost efficient choice for a variety of applications that also includes functional fluids, flavor and fragrances, sealants, coatings, and special inks. TCC can deliver ESO with one (1) week lead time in ...
Copolymers of glycidyl methacrylate and allyl glycidyl ether having pendant epoxy groups, having an inherent viscosity of at least about 0.25, preferably within the range of about 0.25 to about 0.38, and an epoxy equivalent of at least about 0.65 epoxide equivalent per 100 g. of polymer are provided which upon admixture with a radiation-sensitive aryldiazonium salt provide compositions which exhibit improved sensitivity, curing rates and other properties. Articles for recording and storing information from a laser source and other articles such as microfilm are derived from such compositions by subjecting a coated substrate to an energy source of sufficient intensity to decompose the radiation-sensitive catalyst and thus effect polymerization via the epoxy groups of the copolymer.
Data & statistics on Bisphenol F Diglycidyl Ether: Bisphenol A diglycidyl ether and its oligomers are major components of epoxy resins. Epoxy resins based on bisphenol A diglycidyl ether are widely used in protective coatings, including paints, in reinforced plastic laminates and composites, in tooling, casting and moulding resins, in bonding materials and adhesives, and in flooring and aggregates. : C21H24O4, COMPOUND BIS(DIMETHYL THIOCARBAMYL)DISULFIDE BIS(DIMETHYLAMINO)BENZOPHENONE, 4,4- BIS(P-TERT-BUTYLPHENYL) PHENYL PHOSPHATE BIS-(1,4-DIMETHYLPENTYL)P-PHENYLENEDIAMINE, N,N- 3081-14-9 BIS-DIETHYLENE GLYCOL MONOETHYL ETHER PHTHALATE BIS[2-(2-CHLOROETHOXY)ETHYL] ETHER BISPHENOL A DIGLYCIDYL ETHER BITUMEN BLEOMYCINS BORAX, ANHYDROUS (SODIUM BORATE ANHYDROUS) 1303-96-4 BORAX, DECAHYDRATE BORAX,PENTAHYDRATE ..., Bisphenol F diglycidyl ether (BFDGE)...
The fabrication of cell sheets is a major requirement for bottom-up tissue engineering purposes (e.g. cell sheet engineering) and regenerative medicine. Employing thermoresponsive polymer coatings as tissue culture substrates allows for the mild, temperature-triggered detachment of intact cell sheets along with their extracellular matrix (ECM). It has been shown before that biocompatible, thermoresponsive poly(glycidyl ether) monolayers on gold substrates can be utilized to harvest confluent cell sheets by simply reducing the temperature to 20 °C. Herein, we report on the first poly(glycidyl ether)-based coating on an application-relevant tissue culture plastic substrate. We devised a simple, substrate geometry-independent method to functionalize polystyrene (PS) surfaces from dilute ethanolic solution via the physical adsorption process of a thermoresponsive poly(glycidyl ether) block-copolymer (PGE) bearing a short, hydrophobic, and photoreactive benzophenone (BP) anchor block. Subsequently, ...
Soybean oil,epoxidized, acrylate/91722-14-4/Epoxidized Soyabean Oil Acrylate (Soya Modified Acrylate) CAS No.: 91722-14-4 Other Names: Epoxidized Soyabean Oil Acrylate (... Type: oligomer Purity: pure Contact SupplierSpecificationsLow visco
Problem statement: This study was carried out for the characterization of epoxidized and non-epoxidized fatty diethanolamides by High Performance Liquid Chromatography (HPLC) and Gas Chromatography (GC). Approach: The fatty diethanolamides were synthesized by reacting 40% (w/w) of Epoxidized Palm Olein (EPOo) with 60% (w/w) Refined Bleached Deodorized Plam Kernel Olein (RBDPKOo) with Diethanolamine (DEA) at 110°C for 5 h. Results: The identities of the peaks were established by secondary standards that were derived from pure methyl esters. HPLC separated major non-epoxidized diethanolamide compounds, namely C10:0, C12:0, C14:0, C16:O, C18:1 and C18:0 and the molecular weights of the compounds were dentified by Liquid Chromatography-Mass Spectrometry (LC-MS). Conclusion: GC provided a more complete separation for the non-epoxidized diethanolamides, epoxidized diethanolamides, glycerol, Diethanolamine (DEA) and some minor compounds from the self-condensation of DEA and diethanolamides. Gas
The invention discloses a method for preparing high-quality epoxidized soybean oil, comprising the following steps: mixing a hydrogen peroxide water solution and a formic acid water solution; then adding a catalyst and a stabilizing agent; pumping soybean oil and the mixture into a micro-channel modularized reaction device; keeping the reaction stopping time for 2-12 min; reacting at 65-95 DEG C and leading a reaction product into a separator; adding an NaCO3 water solution and statically standing to be layered to remove a water solution of the lower layer; washing an upper-layer organic phase by water; and carrying out rotary evaporation to obtain the high-quality epoxidized soybean oil. The preparation method of the high-quality epoxidized soybean oil disclosed by the invention is a continuous process; and the preparation process is easy to operate and control, the safety is high, the reaction conditions are moderate, the reaction stopping time is short, the quality of a product is stable and
Epoxidized Soybean Oil - KH ChemicalsEpoxidized Soybean Oil Epoxidized soybean oil, better known by its acronym, ESBO, is a plasticizer used in polyvinyl chloride (PVC) plastics. It serves as a plasticizer and as a scavenger for hydrochloric acid liberated from PVC when the PVC undergoes heat treatment. Substance name:soyabean oil,epoxidised Trade name:Epoxidized Soybean Oil EC […]
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TY - JOUR. T1 - Enolate and Other Carbon Nucleophile Alkylation Reactions using 1,2-Cyclic Sulfates as Terminal Epoxide Equivalents. AU - Hoye, Thomas R. AU - Crawford, Khushrav B.. PY - 1994/2/1. Y1 - 1994/2/1. N2 - Enolates of esters and amides as well as α-sulfonyl-, α-cyano-, and α-phosphonyl-substituted anions react with cyclic sulfate 1 to give hydroxylated products arising from nucleophilic attack, on this terminal epoxide equivalent, at the primary carbon.. AB - Enolates of esters and amides as well as α-sulfonyl-, α-cyano-, and α-phosphonyl-substituted anions react with cyclic sulfate 1 to give hydroxylated products arising from nucleophilic attack, on this terminal epoxide equivalent, at the primary carbon.. UR - http://www.scopus.com/inward/record.url?scp=0012518614&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0012518614&partnerID=8YFLogxK. U2 - 10.1021/jo00082a005. DO - 10.1021/jo00082a005. M3 - Letter. AN - SCOPUS:0012518614. VL - 59. SP - 520. EP - ...
Hemoglobin adduct measurements provide a useful tool for the development of models for risk assessment of chemicals. The measurements can be used to identify reactive metabolites and to determine the in vivo doses of these metabolites. Thus, the need to use default assumptions with regard to animal metabolism and dose-response relationships can be reduced. The research presented here involved the study of a number of important industrial chemicals, primarily 1,3-butadiene, glycidyl ethers, acrylonitrile and acrylamide. Many of these chemicals were shown to be mutagenic in several tests (in vivo/in vitro) and are carcinogenic in experimental animals. The compounds or their metabolites have the ability to react with DNA to form adducts. Formation of such adducts is believed to be responsible for the development of mutation and cancer. The main aim has been to study relationships between exposure and in vivo dose. In some cases analytical methods to measure hemoglobin adducts were already available ...
The proposed biosynthetic pathways to ladder polyethers of polyketide origin and oxasqualenoids of terpenoid origin share a dramatic epoxide-opening cascade as a key step. Polycyclic structures generated in these biosynthetic pathways display biological effects ranging from potentially therapeutic properties to extreme lethality. Much of the structural complexity of ladder polyether and oxasqualenoid natural products can be traced to these hypothesized cascades. In this review we summarize how such epoxide-opening cascade reactions have been used in the synthesis of ladder polyethers and oxasqualenoid natural products.
TABLE-US-00002 [0149]TABLE 1 Crosslinking Weight loss Weight loss R/RD/CA/C start at 400° C. at 400° Reactive diluent Crosslinking Catalyst (parts by temperature after cycle after cycle Ex. Resin (R) (RD) agent (CA) (C) weight) (° C.) 1 (%) 2 (%) 1 BADGE.sup.(1) furfuryl alcohol -- 2MI 90/10/0/2 84 9.4 n.d. 2 BADGE.sup.(1) 1,4-butanediol -- 2MI 90/10/0/2 90 n.d. 20.4 diglycidyl ether.sup.(3) 3 BADGE.sup.(1) 1,6-hexanediol -- 2MI 90/10/0/2 99 n.d. 31.3 diglycidyl ether.sup.(6) 4 BADGE.sup.(1) epoxidized -- 2MI 90/10/0/2 93 n.d. 12.9 cardanols.sup.(4) 5 BADGE.sup.(1) CNSL.sup.(5) -- 2MI 90/10/0/2 93 12.7 n.d. 6 BADGE.sup.(1) glyoxal -- 2MI 90/10/0/2 132 49.9 n.d. 7 BADGE.sup.(1) bisoxazolidine.sup.(8) -- 2MI 90/10/0/2 n.d. n.d. 18.8 8 epoxidized Furfuryl alcohol -- 2MI 70/30/0/2 n.d. 16.0 n.d. novolac.sup.(2) 9 epoxidized Furfuryl alcohol 3-ethyl-2- -- 50/20/30/0 250 n.d. 33.4 novolac.sup.(2) methyl(3- methylbutyl)- 1,3- oxazolidine.sup.(7) 10 epoxidized Furfuryl alcohol 1,3-PBO -- 50/20/30/0 ...
This work describes a general protocol for the oxidation of indole and oxindole derivatives with dimethyldioxirane to give 3-hydroxyoxindoles present in many naturalproducts. This strategy allowed us to synthesize the naturalproduct1, to carry out the first total synthesis of 4, a formal total synthesis of donaxaridine (5) and to achieve the synthesis of pyrroloindoline 8, a debromo analogue of the naturalproduct flustraminol B (7). ...
The Global Epoxidized Soybean Oil Market Research Report is an all-inclusive study comprising insightful market intelligence, profound inputs from industry experts, and reliable predictions based on the industry performance. The report minutely analyzes market demand, scope, potential, contemporary trends, maturity, and profitability. The overall global Epoxidized Soybean Oil market structure has also been examined in the report […]. ...
Molecular Formula : C57H106O10 Physicochemical Properties : Epoxidized Soybean Oil is a kind of slight yellow viscous oily liquid , with viscosity of 325mpa.s, refractive index of 1.473 and density of 0.985 . Epoxidized Soybean Oil is not...
[102 Pages Report] Check for Discount on Global Epoxidized Soybean Oil Acrylate Market Research Report 2017 report by QYResearch Group. In this report, the global Epoxidized Soybean Oil Acrylate market...
TY - JOUR. T1 - How significant the charge density of olefins to their epoxidation reactions over M4+-substituted zeolitic catalysts: A DFT investigation. AU - Wu, Xiaomin. AU - Yang, G.. AU - Zhou, Lijun. AU - Han, Xiuwen. PY - 2013. Y1 - 2013. N2 - Density functional calculations were performed to study the active sites of M4+-substituted zeolites (M = Ti, Zr, Ge, Sn, Pb) and find a descriptor to correlate the olefin structures and epoxidation activities. The active-site formation is the most thermodynamically favorable for M = Ti. Transition elements (Ti and Zr) form the bidentate M(eta(2)-OOH) active sites whereas main group elements (Ge, Sn and Pb) are apt to form the monodentate M(eta(1)-OOH) species. The charge density of the C=C double bond (Q(CC)) was found to be closely correlated with the activation free energy (Delta G(not equal)), and the linear functions were fitted as Delta G(not equal) = 32.5 * Q(CC) + 54.4 (R-2 = 0.89) and Delta G(not equal) = 41.2 * Q(CC) + 55.5 (R-2 = 0.95) ...
Polyimidazole Glycidyl Ether is the polymer of 1H-Imidazole with (chloromethyl)oxirane that generally conforms to the formula: (C3H5ClO • C3H4N2)X.
Thermoresponsive polymer coatings can facilitate cell sheet fabrication under mild conditions by promoting cell adhesion and proliferation at 37 °C. At lower temperatures the detachment of confluent cell sheets is triggered without enzymatic treatment. Thus, confluent cell sheets with intact extracellular matrix for regenerative medicine or tissue engineering applications become available. Herein, we applied the previously identified structural design parameters of functional, thermoresponsive poly(glycidyl ether) brushes on gold to the more application/relevant substrate glass via the self/assembly of a corresponding block copolymer (PGE/AA) with a short surface/reactive, amine/presenting anchor block. Both, physical and covalent immobilization on glass via either multivalent ionic interactions of the anchor block with bare glass or the coupling of the anchor block to a polydopamine (PDA) adhesion layer on glass resulted in stable coatings. Atomic force microscopy revealed a high degree of ...
Epoxidized palm oil (EPO) based polyols were produced from three different molar ratios of EPO and glycerol (1:1.0, 1:1.5, 1:2.0) via hydroxylation reaction. The reduction of oxirane content from 2.9 to 0.04%, the increase in hydroxyl value to 509.6 mgKOH/g and high viscosity of synthesized polyols indicates the opening of epoxy ring and also showed the grafting process had been occurred. Based on FTIR and NMR spectrum, hydroxyl group has been chemically grafted onto the opened epoxy ring of EPO. Polyol-1.5 synthesized from 1 mol of EPO react with 1.5 mol of glycerol was chosen in formulating polyol-silane resin due to its optimum properties and characteristics compared with others. The polyol-1.5 was mixed with different types of silane and hardener to formulate polyol-silane resin. Each silanes was varied with three different weight percentages (10, 30 and 50 wt %). Result shows that only polyol-3-Isocyanatepropyltrimethoxysilane (ICPTES) resin was successfully formed coated film. The ...
Quality Terminated polyethers/Allyl end capped polyethers manufacturers & exporter - buy Methyl alcohol,butyl alcohol polyalkylene ether, epoxy group end capped from China manufacturer.
SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES : : PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF : Process of forming a composition containing a nonreactive material (NRM) and a polymer containing more than one 1,2-epoxy group, or a preformed polymer derived from or admixed with a reactant containing more than one 1,2-epoxy group, or with a polymer derived from an epihalohydrin and a polyhydric phenol or polyol; or composition or product thereof : Product contains water per se or water of hydration as designated nonreactive material (DNRM) : Polymer contains more than one 1,2-epoxy group or one derived from reactant containing more than one 1,2-epoxy group is further derived from or reacted with organic nitrogen or sulfur : Organic nitrogen compound contains isocyanate group : Polymer from ethylenic reactants only derived from ...
Malvoisin, E. ; Mercier, Michel ; Roberfroid, Marcel. Enzymatic hydration of butadiene monoxide and its importance in the metabolism of butadiene.. In: Advances in experimental medicine and biology, Vol. 136 Pt A, p. 437-44 (1981 ...
Despite the growing interest in amphiphilic block copolymers for their application in micelles as ideal drug delivery carriers, there remain some challenges related to biocompatibility, stability, degradability, and loading efficiency of the micelles. Herein, we report a novel hydrophobic, pH-responsive epoxide monomer, tetrahydropyranyl glycidyl ether (TGE). Anionic ring-opening polymerization affords the controlled synthesis of a series of its homopolymers (PTGE) and amphiphilic polymers, poly(ethylene glycol)-block-poly(tetrahydropyranyl glycidyl ether) (PEG-b-PTGE). Interestingly, these block copolymers with cyclic TGE moieties showed superior stability in biological media, high loading capacity, tunable release, and controllable degradation compared to the block copolymers with its acyclic analogue, 1-ethoxyethyl glycidyl ether (EEGE), widely employed in polyether, which satisfy all the required design principles and address the challenges in drug delivery systems. The superior ...
158318-67-3 - Fatty acids, C16-18 and C18-unsatd., Me esters, epoxidized - Searchable synonyms, formulas, resource links, and other chemical information.
http://www.decisiondatabases.com/ip/13470-epoxidized-soybean-oil-esbo-industry-market-report. This report analyses major market data like capacity, production, capacity utilization rate, price, revenue, cost, gross, gross margin, supply, import, export, consumption, market share, growth rate and etc. For regional market, this report analyses major regions like Europe, North America, South America, Asia (Excluding China), China and ROW. This report analyses the market forecast from 2017 to 2022 for global and regional market and the new project investment feasibility analysis. This report is a valuable source of guidance for manufacturers, suppliers, distributors, customers, investors and individuals who have interest in this market.. Ask for free sample pages of Global Epoxidized Soybean Oil (ESBO) Industry Report @ ...
Epoxidized Soybean oil (ESBO) Market Analysis | Recent ...High adoption of Organic Stabilizers in Polyvinyl Chloride (PVC) Stabilization Process Driving the
Epoxidized Soybean oil is used in numerous applications of the plastics industry due to its plasticizer and stabilizer action on PVC.
INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) ALLYL GLYCIDYL ETHER NTP Experiment-Test: 05080-02 Report: PEIRPT05 Study Type: CHRONIC Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:18 Facility: Battelle Northwest Chemical CAS #: 106-92-3 Lock Date: None Cage Range: All Reasons For Removal: All Removal Date Range: All Treatment Groups: Include All a Number of animals examined microscopically at site and number of animals with lesion Page 1 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:18 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE CONTROL 5 PPM 10 PPM FEMALE FEMALE FEMALE ...
INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) ALLYL GLYCIDYL ETHER NTP Experiment-Test: 05080-02 Report: PEIRPT03 Study Type: CHRONIC Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 Facility: Battelle Northwest Chemical CAS #: 106-92-3 Lock Date: None Cage Range: All Reasons For Removal: All Removal Date Range: All Treatment Groups: Include All a Number of animals examined microscopically at site and number of animals with lesion Page 1 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE CONTROL 5 PPM 10 PPM FEMALE FEMALE FEMALE ...
Wash thoroughly after handling. Use only in a well ventilated area. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Use and store under nitrogen. Use only in a chemical fume hood. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Do not breathe vapors ...
IARC 1999 17 Opinion of the Scientific Panel on Food Additives Flavourings Processing Aids and Materials in Contact with Food (AFC) on a request from the Commission related to 2 2-bis(4-hydroxylphenyl)propane bis(2 3-epoxypropyl)ether (Bisphenol A diglycidyl ether BADGE) The EFSA Journal No 86 2004 adopted July 13 2004 page 1 18 Draft International Uniform Request A Quotation! ...
Poly(ethylene glycol) diglycidyl ether (n ~22; also known as PEGDE) is a difunctional, water-soluble crosslinker for amine-, hydroxyl-, and carboxyl-functional polymers. Learn More ...
The use of p tris 2 aminoethyl amine co glycerol diglycidyl ether microgel as template for Co Ni nanoparticles and their use as catalyst for H2 production from NaBH4 hydrolysis ...
Polymer-coated liposomes, particularly poly(ethylene glycol) (PEG)-substituted liposomes, have emerged as long-circulating carrier systems for drug delivery and diagnostic purposes. A rapid synthesis of three different types of multifunctional lipids with structurally diverse hydrophilic, polyether-based architectures via one- or two-pot approaches is described. Architectural variation is achieved by the combination of different oxyanionic polymerization strategies and various glycidyl ether building units. Branched polyglycerol lipids have been prepared via cholesterol- or 1,2-bis-n-alkyl glyceryl ether-initiated, oxyanionic ring-opening polymerization (ROP) of protected glycidyl ethers and glycidol, respectively. In addition 1:0 these polyglycerol-based lipids, we describe the synthesis of multifunctional PEGs as the hydrophilic part of the lipid, which can be compared to conventional stealth lipids, but bear an adjustable number of hydroxyl functions within the PEG backbone. These lipids can be
There are also endless other possible ways that this molecule could twist itself. There is completely free rotation around all the carbon-carbon single bonds. If you had a model of a molecule in front of you, you would have to take it to pieces and rebuild it if you wanted to make an isomer of that molecule. If you can make an apparently different molecule just by rotating single bonds, its not different - its still the same molecule.. In structural isomerism, the atoms are arranged in a completely different order. This is easier to see with specific examples. What follows looks at some of the ways that structural isomers can arise. The names of the various forms of structural isomerism probably dont matter all that much, but you must be aware of the different possibilities when you come to draw isomers.. ...
Bulman Page, Philip C., Buckley, Benjamin R., Barros, David, Blacker, A. John, Heaney, Harry and Marples, Brian A. (2006) Non-aqueous iminium salt mediated catalytic asymmetric epoxidation. Tetrahedron, 62 (28). pp. 6607-6613. ISSN 0040-4020 Full text not available from this repository. (Request a copy ...
ADH-A from Rhodococcus ruber DSM 44541 catalyzes the oxidation of (S)-1-phenylethanol 3000-fold more efficiently as compared with the 2-hydroxylated derivative (R)-phenylethane-1,2-diol. The enzyme is also highly selective for sec-alcohols with comparably low activities with the corresponding primary alcohols. When challenged with a substrate containing two secondary alcohols, such as 1-phenylpropane-(1R,2S)-diol, ADH-A favors the oxidation of the benzylic carbon of this alcohol. The catalytic efficiency, however, is modest in comparison to the activity with (S)-1-phenylethanol. To investigate the structural requirements for improved oxidation of vicinal diols, we conducted iterative saturation mutagenesis combined with activity screening. A first-generation variant, B1 (Y54G, L119Y) displays a 2-fold higher k(cat) value with 1-phenylpropane-(1R,25)-diol and a shift in the cooperative behavior in alcohol binding, from negative in the wild type, to positive in B1, suggesting a shift from a less ...
Harmonised classification and labelling is a legally binding classification and labelling for a substance, agreed at European Community level. Harmonisation is based on the substances physical, toxicological and eco-toxicological hazard assessment. The Hazard classification and labelling section uses the signal word, pictogram(s) and hazard statements of the substance under the harmonised classification and labelling (CLH) as its primary source of information.. If the substance is covered by more than one CLH entry (e.g. disodium tetraborate EC no. 215-540-4, is covered by three harmonisations: 005-011-00-4; 005-011-01-1 and 005-011-02-9), CLH information cannot be displayed in the InfoCard as the difference between the CLH classifications requires manual interpretation or verification. If a substance is classified under multiple CLH entries, a link to the C&L Inventory is provided to allow users to view CLH information associated with the substance and no text is automatically ...
A NIOSH walkthrough industrial hygiene survey was conducted to identify a group of male workers exposed to butyl-glycidyl-ether (2426086). The survey was conducted to determine eligibility for a study of the effects of this chemical on reproductive histories. The work force at the BGE production factory consisted of 330 employees, including 250 production workers. Fifty workers were rotated from o
View Notes - Does it Get Any Better than This from CH 223 at N.C. State. a. OH b. The aldehyde and epoxide are the only carbon sources that can show up in the product. Otherwise, you can also use
Data on 6,500 pesticides, insecticides and herbicides including toxicity, water pollution, ecological toxicity, uses and regulatory status.
3-[(8-{3-[(3-Pentyloxiran-2-yl)methyl]oxiran-2-yl}octanoyl)oxy]propane-1,2-diyl bis{8-[3-({3-[(3-ethyloxiran-2-yl)methyl]oxiran-2-yl}methyl)oxiran-2-yl]octanoate ...
The challenges that this market is expected to face in the years ahead are the health hazards that are likely to occur in the industry of food and beverages to the excess use of ESBO and low product competitiveness that it creates.
China PVC Plasticizer Epoxidized Soybean Oil, Find details about China Epoxy Soybean Oil, Eso from PVC Plasticizer Epoxidized Soybean Oil - Lanzhou Qianmiaonuo Trading Co., Ltd.
OBJECTIVE To observe the impairing effects of triptolide on liver mitochondria in isolated rat-liver mitochondria and human normal liver HL7702 cell line. METHODS Rat-liver mitochondria were isolated from adult female Sprague-Dawley (SD) rats. Liver mitochondria were incubated with 0, 1.25, 2.5, 5 and 10 μmol/L triptolide for detecting mitochondrial swelling and with 0, 2.5, 5 and 10 μmol/L triptolide for mitochondrial permeability transition pore (MPTP) activity. Mitochondrial swelling was estimated by measuring the apparent absorbance change during 600 s in the mitochondrial suspensions at 520 nm with a mitochondrial swelling examining kit. The effect of triptolide on MPTP was determined with a fluorescence detection kit by detecting the fluorescence intensity at an excitation wavelength of 488 nm emitted at 527 nm. Human normal liver HL7702 cells were treated without or with 0.02, 0.1 and 0.5 μmol/L triptolide for 24 h for analyzing mitochondrial transmembrane potential (Δψm) and reactive
TY - JOUR. T1 - Enantioselective epoxidation of olefins with chiral (salen)manganese(III) complexes bearing 4-methyl-3-[(R)-1-phenylpropyl]salicylideneamine as a constituent. AU - Hosoya, Naoki. AU - Irie, Ryo. AU - Ito, Yoshio. AU - Katsuki, Tsutomu. PY - 1991/1/1. Y1 - 1991/1/1. N2 - (Salen)manganese(III) complex 5 [2,2′-[2-methylpropane-1,2-diylbis (nitrilomethylidyne)]-5,5′ - dimethyl-6,6′ - (1-phenylpropyl)diphenolatomanganese (III)] bearing one set of stereogenic centers in the 1-phenylpropyl substituents and a geminally dimethylated ethylenediamine moiety was found to catalyze the enantioselective epoxidation of E olefins just as effectively as the reported (salen)manganese(III) complex 2, which bears two sets of stereogenic centers, in the ring substituents and on the ethylenediamine moiety.. AB - (Salen)manganese(III) complex 5 [2,2′-[2-methylpropane-1,2-diylbis (nitrilomethylidyne)]-5,5′ - dimethyl-6,6′ - (1-phenylpropyl)diphenolatomanganese (III)] bearing one set of ...
CAS 90-72-2 25068-38-6 044 HARVEYS EPOXY PUTTY 2,4,6-tri(dimethylaminomethyl)phenol, dmp-30bisphenol a diglycidyl ether resin, epoxy resin, epon 820, araldite msds toxicity property
Epoxide hydrolases (EHs), also known as epoxide hydratases, are enzymes that metabolize compounds that contain an epoxide residue; they convert this residue to two hydroxyl residues through a dihydroxylation reaction to form diol products. Several enzymes possess EH activity. Microsomal epoxide hydrolase (epoxide hydrolase 1, EH1, or mEH), soluble epoxide hydrolase (sEH, epoxide hydrolase 2, EH2, or cytoplasmic epoxide hydrolase), and the more recently discovered but not as yet well defined functionally, epoxide hydrolase 3 (EH3) and epoxide hydrolase 4 (EH4) are structurally closely related isozymes. Other enzymes with epoxide hydrolase activity include leukotriene A4 hydrolase, Cholesterol-5,6-oxide hydrolase, MEST (gene) (Peg1/MEST), and Hepoxilin-epoxide hydrolase. The hydrolases are distinguished from each other by their substrate preferences and, directly related to this, their functions. Humans express four epoxide hydrolase isozymes: mEH, sEH, EH3, and EH4. These isozymes are known (mEH ...
A vegetable oil-based polyol is made by adding a peroxyacid to vegetable oil wherein said peroxyacid reacts with said vegetable oil to form epoxidized vegetable oil and adding said epoxidized vegetable oil to a mixture of an alcohol, water, and a catalytic amount of fluoboric acid so as to form a vegetable oil-based polyol. A further embodiment of the present invention involves making a vegetable oil-based polyol using an epoxidized vegetable oil as the starting material. The epoxidized vegetable oil undergoes hydroxylation by the same process as outlined above. According to another aspect of the present invention, the vegetable oil-based polyol formed by the novel methods of this invention may be reacted with an isocyanate to form a polyurethane. Alternatively, a filler such as silica may be combined with the vegetable oil-based polyol before it is reacted with the isocyanate. These polyurethanes made from vegetable oil-based polyols may be used to form electroinsulating casting resins.
United States Aerylated Epoxidized Soybean Oil Market Report 2017 is a market research report available at US $3800 for a Single User PDF License from RnR Market Research Reports Library.
Poly(ethylene glycol) diglycidyl ether (n ~13; also known as PEGDE) is a difunctional, water-soluble crosslinker for amine-, hydroxyl-, and carboxyl-functional polymers..WPE ~372Total chlorine (%): 1.9
Early buyers will receive 10% customization on reports.. The polyether polyols segment of the propylene oxide market is projected to grow at the highest CAGR from 2017 to 2022.. By application, the polyether polyols segment of the propylene oxide market is projected to grow at the highest CAGR from 2017 to 2022. The growth of the propylene oxide segment of the market can be attributed to increasing demand for polyurethane across the globe. The polyether polyols application segment led the Asia Pacific propylene oxide market in 2016. Rising demand for polyurethane and Unsaturated Polyester Resin (UPR) from the automotive, building & construction, textile & construction, textile & furnishing, packaging, and electronics industries is expected to drive the growth of the polyether polyols application segment of the Asia Pacific propylene oxide market.. The hydrogen peroxide process of the propylene oxide market is projected to grow at the highest CAGR from 2017 to 2022.. The hydrogen peroxide process ...
Two dimeric chiral (pyrrolidine salen)Mn(III) complexes 3 and 4 were prepared, in which the two (pyrrolidine salen)Mn(III) units are linked either by a p-xylylene or by ap-phthalyl bridge. High yields were attained for asymmetric epoxidation of styrene and substituted chromenes at 0.5-4.0 mol% catalyst loading of 3 and 4 using NaClO/PPNO and m-CPBA/NMO as oxidant systems, with 37-39% ee for styrene and 86-95% ee for substituted chromenes. Dimeric complexes 3 and 4 displayed higher activities than their parent monomeric complexes 1 and 2 of double equiv for epoxidation of substituted chromenes. Complex 3 bearing two tertiary amine units displayed considerably higher activity than analogous dimeric complex 4 containing two carboxamide units in the aforementioned reaction. The effect of excess CH3I on the epoxidation of 6-nitro-2,2-dimethylchromene catalysed by 3 in the aqueous/organic biphasic medium was explored. The recovery and recycling possibilities of the dimeric complexes 3 and 4 were ...
United States Patent 3,294,743 EPOXY ETHER RESIN-LACTONE COMPOSITIUNS George R. Mack, Allentown, Pa., assignor to General Aniline & Film Corporation, New York, N.Y., a corporation of Delaware No Drawing. Filed May 12, 1961, Ser. No. 109,516 4 Claims. (Cl. 26047) This invention relates to epoxy ether resin compositions containing lactones as reactive diluents. It is known that the properties of cured epoxy ether resins may be varied over a wide range by incorporating into the uncured system liquid diluents, fillers and other synthetic resins. The diluents reduce the viscosity of the epoxy ether resin so that better penetration in casting and wetting ability in laminate and adhesion fonmulations may be achieved. The diluents that are employed commercially and those that have been suggested by the art include reactive diluents, i.e. containing epoxy or other reactive groups, such as for example low viscosity glycerol-based resin, phenyl glycidyl ether, butyl glycidyl ether, octylene oxide, styrene ...
Several degree-epoxidized linseed oils (8, 20, 35, 40, 47 and 54%) were prepared for changing different reaction parameters such as temperature, amount of peroxide and enzyme of the well studied chemoenzymatic epoxidation method. The epoxidation reaction following was carried out by Infrared spectroscopy (FTIR) and Proton Nuclear Magnetic Resonance (H1NMR) which are the most usual spectroscopes for this propose. However, microRaman spectroscopy and Differential Scanning Calorimetry (DSC) characterization were used in this work as complementary techniques. Particularly, DSC permitted to correlate the epoxy-aperture energy to each epoxidation percentage making it another optional technique for quantify epoxidation levels in triglycerides ...
Suppliers List, E-mail/RFQ Form, Molecular Structure, Weight, Formula, IUPAC, Synonyms for Ethyleneglycol diglycidyl ether (CAS No. 2224-15-9)
[150 Pages Report] Check for Discount on Global and Chinese Dimethyl Dioxirane Industry, 2017 Market Research Report report by Prof Research. The Global and Chinese Dimethyl Dioxirane Industry, 2012-2022 Market...
Vitamin B12 can be reduced to cob(I)alamin [Cbl(I)], which is one of the most powerful nucleophiles known and referred to as a supernucleophile. Cbl(I) was applied as a tool in toxicological studies of the air pollutant 1,3-butadiene (BD), the toxicant acrylamide (AA) present in many foods, and the artificial sweetener sucralose.. BD, a human carcinogen, is metabolised to genotoxic epoxides, two monoepoxides and the most potent diepoxybutane (DEB). AA, classified as a probable human carcinogen, is metabolised to the genotoxic epoxide glycidamide (GA). Due to their reactivity, quantitative analysis of the epoxides presents an analytical challenge. By using Cbl(I) for trapping, a sensitive and accurate method to quantify the epoxides as alkylcobalamins by LC-MS/MS in metabolism studies was developed and validated.. Using the Cbl(I) method, enzyme kinetic parameters, Vmax and Km, were determined for the metabolic steps associated with the BD epoxides and with the formation of GA from AA, in liver ...
Curable epoxide resin mixtures based on adducts, containing epoxide groups, which are obtained by reaction of certain long-chain aliphatic polyesters with an excess of diepoxide compounds, and linear or slightly branched polyesters, containing carbocyclic or heterocyclic rings and possessing 3 or 4 terminal carboxyl groups, and having an average molecular weight of 600 - 6,000, 0.7 - 1.2 equivalents of carboxyl groups being present in the curable mixture per 1 equivalent of epoxide groups. Curing these epoxide resin mixtures gives flexible moulded materials which are distinguished by high tear propagation resistance.
Glycidol is an organic compound containing epoxide and alcohol functional groups. It is a clear, slightly viscous liquid that has a variety of industrial uses. Glycidol is used as a stabilizer for natural oils and vinyl polymers and as a demulsifier. It is used as a chemical intermediate in the synthesis of glycerol, glycidyl ethers, esters and amines. It is used in surface coatings, chemical synthesis, pharmaceuticals, sanitary chemicals and sterilizing milk of magnesia, and as a gelation agent in solid propellants.[2] Glycidol is an irritant of the skin, eyes, mucous membranes, and upper respiratory tract. Exposure to glycidol may also cause central nervous system depression, followed by central nervous system stimulation.[3] ...
• Levels of carbamazepine and its -10,11-epoxide metabolite were measured in plasma and CSF of affectively ill patients treated only with carbamazepine for an a
Many environmental pollutants such as trichloroethene, styrene, benzo[a]pyrene, and cyclopenta[cd]pyrene are metabolized into epoxides in mammals. These epoxides are electron-deficient species, and they alkylate DNA. If DNA is not properly repaired, mutations leading to cancer may result. Therefore efforts to elucidate the mechanisms of epoxide reactions are very important. Epoxides are also important synthetic precursors of many organic compounds. A study of structure-reactivity relationships of epoxide reactions will lead to a better understanding of the mechanisms of epoxide reactions. 5-Methoxyacenaphthylene 1,2-oxide (47) was synthesized and its hydrolysis reactions were studied as a model for the hydrolysis reactions of cyclopenta[cd]pyrene 3,4-oxide (25). Acid-catalyzed hydrolysis of 47 yielded 62% of cis diol product, 37% of trans diol product, and ,1% of ketone. The pH-independent reaction of 47 yielded ,94% ketone. The cis and trans diols, treated with 0.1 M HClO4, underwent ...
Epoxy fatty acid methyl ester 6084-76-0, China Epoxy fatty Chemical name:Epoxy fatty acid methyl ester Molecular formula:C19H36O3 Molecular weight: 312.49 CAS No.:6084-76-0 HS Code:29420000 Description: Epoxy fatty acid methyl ester i
Citation: Liu, Z., Biswas, A. 2013. Fluoroantimonic acid hexahydrate (HSbF6-6H2O) catalysis: The ring-opening polymerization of epoxidized soybean oil. Applied Catalysis A: General. 453:370-375. Interpretive Summary: In this research, we discovered that chemically modified soybean oil (epoxidized soybean oil) could be converted to biodegradable polymers by a super acid catalyst. The catalyst can be easily neutralized by base solution washing. It is a clean reaction. The development of new uses for soybean oil is eagerly needed in order to prevent price decreases due to oversupply. The prepared soybean oil-based polymers will be converted to detergents for personal care and health care applications by this method. Technical Abstract: Ring-opening polymerization of epoxidized soybean oil (ESO) catalyzed by a super acid, fluroantimonic acid hexahydrate (HSbF6-6H2O), in ethyl acetate was conducted in an effort to develop useful biodegradable polymers. The resulting polymerized ESO (SA-RPESO) were ...
The present invention relates to a two-component epoxy adhesive composition comprising a) a first component comprising a first epoxy resin and a second epoxy resin, the second epoxy resin being flexibilized by an elastomer, and b) a second component comprising at least one amine compound with one or more primary and/or secondary amino groups, said amine compound having a molecular weight of less than 450 g/mol. The ratio of the total number of amino groups of the amine compound to the total number of epoxy groups of the epoxy resins is 0.01:1 to 0.5:1. The mixing of the two components a) and b) results in a wash-off resistant composition. Said wash-off resistant composition results upon heat-curing in a crash-stable structural adhesive.
Asymmetric epoxidation is one of the most important reactions in synthetic organic chemistry, because chiral epoxides act as versatile electrophiles which can be converted in a number of interesting and useful chiral products. Its known that current methodologies for obtaining excellent enantioselectivities need to be improved in terms of reaction times, use of not expensive or toxic metals, and avoidance of chlorinated solvents and oxidants that produce undesired wastes. Natural systems, such as iron enzymes are capable of perform this chemistry with high selectivity and efficiency under very mild conditions. Inspired by oxidations taking place at oxygenases, the combination of iron- and manganese-based catalysts and hydrogen peroxide is an attractive approach for developing oxidation methods because of availability, low cost and low toxicity considerations. One of the main objectives of this thesis is the development of iron and manganese complexes that mimics the structure and functions of ...
TY - JOUR. T1 - Glycidamide promotes the growth and migratory ability of prostate cancer cells by changing the protein expression of cell cycle regulators and epithelial-to-mesenchymal transition (EMT)- associated proteins with prognostic relevance. AU - Ekanem, Titus Ime. AU - Huang, Chi Chen. AU - Wu, Ming Heng. AU - Lin, Ding Yen. AU - Lai, Wen Fu T.. AU - Lee, Kuen Haur. PY - 2019/5/1. Y1 - 2019/5/1. N2 - Acrylamide (AA) and glycidamide (GA) can be produced in carbohydrate-rich food when heated at a high temperature, which can induce a malignant transformation. It has been demonstrated that GA is more mutagenic than AA. It has been shown that the proliferation rate of some cancer cells are increased by treatment with GA; however, the exact genes that are induced by GA in most cancer cells are not clear. In the present study, we demonstrated that GA promotes the growth of prostate cancer cells through induced protein expression of the cell cycle regulator. In addition, we also found that GA ...
35 K. Changes in Tex greatly affect NT, and model parameters that fit the data nearly as well are possible for excitation conditions between Tex = 5 and 35 K. These models all reproduce the observed features from the GBT and Parkes and are consistent with the nondetection of propylene oxide at 3 mm; under these conditions, no transitions of propylene oxide would be detectable in the reported observations (10).. A search of spectral line catalogs reveals no reasonable interfering transitions from other molecular species. Propylene oxide is an asymmetric rotor with modest rotational constants and therefore has numerous (~450) transitions that fall within the PRIMOS data. For lower excitation temperatures (Tex ~ 10 to 35 K), at most 80 have an intensity ≥1% of the strongest predicted line. Of these, ~13% are unobservable due to a lack of available receivers at the GBT. Inspection of the entire PRIMOS data set showed no absorption or emission features attributable to propylene oxide at any of ...
China (S) - (-) -Propylene Oxide CAS No. 16088-62-3, Find details about China (S)-(-)-Propylene Oxide, 16088-62-3 from (S) - (-) -Propylene Oxide CAS No. 16088-62-3 - Shanghai Sunwise Chemical Co., Ltd.
Abstract. A chiral bisaryl-silyl-protected pyrrolidine acts as a very selective epoxidation organocatalyst using simple oxidation agents. The scope of the reaction is demonstrated by the formation of optically active α,β-epoxy aldehydes in high yields and enantioselectivities. The asymmetric epoxidation reactions proceed also under environmental friendly reaction conditions in, for example, water mixtures of alcohols.. ...
The epoxidation of olefins with H2O2 was performed with a tungsten-containing catalyst. This insoluble catalyst forms soluble active species by the action of H2O2, and when the H2O2 is used up, the catalyst precipitates for easy recycling. Thus, the advantages of both homogeneous and heterogeneous catalysts are combined in one system through reaction-controlled phase transfer of the catalyst. When coupled with the 2-ethylanthraquinone/2-ethylanthrahydroquinone redox process for H2O2 production, O-2 can be used for the epoxidation of propylene to propylene oxide with 85% yield based on 2-ethylanthrahydroquinone without any co-produds. This approach avoids the problematic co-products normally associated with the industrial production of propylene oxide ...
TY - JOUR. T1 - Iridium-catalyzed condensation of amines and vicinal diols to substituted piperazines. AU - Lorentz-Petersen, Linda L.R.. AU - Nordstrøm, Lars Ulrik. AU - Madsen, Robert. PY - 2012/12/1. Y1 - 2012/12/1. N2 - A straightforward procedure is described for the synthesis of piperazines from amines and 1,2-diols. The heterocyclization is catalyzed by [Cp*IrCl 2] 2 and sodium hydrogen carbonate and can be achieved with either toluene or water as solvent. The transformation does not require any stoichiometric additives and only produces water as the byproduct. The reaction can be performed between a 1,2-diamine and a 1,2-diol or by a double condensation between a primary alkylamine and a 1,2-diol. At least one substituent is required on the piperazine ring to achieve the cyclization in good yield. The mechanism is believed to involve dehydrogenation of the 1,2-diol to the α-hydroxy aldehyde, which condenses with the amine to form the α-hydroxy imine. The latter rearranges to the ...
This report describes a study by Dr. Ryan Meng and colleagues to determine the role of stereochemistry in the cytotoxicity and mutagenicity of three major butadiene metabolites. This study is a part of HEIs program of research in air toxics; one important aim of that program has been to fill key gaps in risk assessment for some of the most important chemicals. Butadiene is present in motor vehicle exhaust and other emissions and is listed by the U.S.
TY - JOUR. T1 - Biochemical evidence for the involvement of tyrosine in epoxide activation during the catalytic cycle of epoxide hydrolase. AU - Yamada, Takashi. AU - Morisseau, Christophe. AU - Maxwell, Joseph E.. AU - Argiriadi, Maria A.. AU - Christianson, David W.. AU - Hammock, Bruce D.. PY - 2000/7/28. Y1 - 2000/7/28. N2 - Epoxide hydrolases (EH) catalyze the hydrolysis of epoxides and arene oxides to their corresponding diols. The crystal structure of murine soluble EH suggests that Tyr465 and Tyr381 act as acid catalysts, activating the epoxide ring and facilitating the formation of a covalent intermediate between the epoxide and the enzyme. To explore the role of these two residues, mutant enzymes were produced and the mechanism of action was analyzed. Enzyme assays on a series of substrates confirm that both Tyr465 and Tyr381 are required for full catalytic activity. The kinetics of chalcone oxide hydrolysis show that mutation of Tyr465 and Tyr381 decreases the rate of binding and the ...
To secure an especially high density of binding possibilities for the antigens, the film surface of the test strips is coated at atmospheric-pressure by a plasma-enhanced chemical vapour deposition (PECVD) process. This cold plasma process, also known as dielectric barrier discharge (DBD), is characterized by relatively simple apparatus technology and, unlike other methods, does not use solvents. The coating is only a few nanometers thick and contains a large number of chemically reactive groups, so-called epoxy groups, which bind the antigens covalently. For each test strip two linear areas are plasma coated with epoxy groups. One line serves as the control line C, with antigens being immobilized here which bind non-specifically to human antibodies. The second line represents the test line (T). TB antigens are bound here which are used for the detection of the test subjects tuberculosis antibodies ...
EC 3.3.2.10. Accepted name: soluble epoxide hydrolase. Reaction: an epoxide + H2O = a glycol. Other name(s): epoxide hydrase (ambiguous); epoxide hydratase (ambiguous); arene-oxide hydratase (ambiguous); aryl epoxide hydrase (ambiguous); trans-stilbene oxide hydrolase; sEH; cytosolic epoxide hydrolase Systematic name: epoxide hydrolase Comments: Catalyses the hydrolysis of trans-substituted epoxides, such as trans-stilbene oxide, as well as various aliphatic epoxides derived from fatty-acid metabolism [7]. It is involved in the metabolism of arachidonic epoxides (epoxyicosatrienoic acids; EETs) and linoleic acid epoxides. The EETs, which are endogenous chemical mediators, act at the vascular, renal and cardiac levels to regulate blood pressure [4,5]. The enzyme from mammals is a bifunctional enzyme: the C-terminal domain exhibits epoxide-hydrolase activity and the N-terminal domain has the activity of EC 3.1.3.76, lipid-phosphate phosphatase [1,2]. Like EC 3.3.2.9, microsomal epoxide hydrolase, ...
On the basis of the sequence similarity between mammalian epoxide hydrolases and bacterial haloalkane dehalogenase reported earlier (Arand, M., Grant, D. F., Beetham, J. K., Friedberg, T., Oesch, F., and Hammock, B. D. (1994) FEBS Lett. 338, 251-256; Beetham, J. K., Grant, D., Arand, M., Garbarino, J., Kiyosue, T., Pinot, F., Oesch, F., Belknap, W. R., Shinozaki, K., and hammock, B. D. (1995) DNA Cell. Biol. 14, 61-71) we selected candidate amino acid residues for the putative catalytic triad of the rat soluble epoxide hydrolase. The predicted amino acid residues were exchanged by site-directed mutagenesis of the epoxide hydrolase cDNA, followed by the expression of the respective mutant enzymes in Escherichia coli. A total of 25 different mutants were analyzed for their epoxide hydrolase activity toward the model substrate trans-stilbene oxide. In case of impaired catalytic activity of a given mutant, the structural integrity of the recombinant enzyme protein was assessed either by its ability ...
Epoxy is either any of the basic components or the cured end products of epoxy resins, as well as a colloquial name for the epoxide functional group. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups. E
Lithographic resist materials based on copolymers and/or terpolymers have been synthesised. These materials are comprised of one component to induce water solubility, such as Nvinyl pyrrolidinone (NVP) or N, Ndimethyl acrylamide (DMAC); and another material to give the photoactive response, in this case allyl glycidyl ether (AGE) or glycidyl methacrylate (GMA). Copolymers and terpolymers of various compositions have been prepared by free radical copolymerization. Cationically initiated photocrosslinking was induced using mixed arylsulphonium hexaflouroantimonate (MAS+-SbF6) as a photoacid generating (PAG) species.. ...
Browse Propylene Oxide in the Interscan Corp. catalog including Portable Analyzer (4000 Series) with Digital Display - Propylene Oxide ,2-Point Stationary Monitors - LD Series - Propylene Oxide,Single Point Stationary Monitors - LD Series - Propylene
We used a lynx EM processor and epon/araldite mixture with 100% acetone as our solvent for infiltration. It was quite sucessful. i beleive it is also safer than Proplene oxide. Try it! Violetta Martinez,MLT Pathology, LHSC London Ontario Jamie Chapman wrote: > Gday, > > Our lab is just about to get an EMS LYNX Automated Tissue Processor for > processing tissues for routine transmission electron microscopy. One of > the problems that our lab encountered with an older (and really quite > massive automated machine - a Sakura - about the size of a Volkswagen) > machine was that by the time the samples got to the propylene oxide > intermediary step, the propylene oxide had evaporated. > > We are using Procure 812 as our resin. Does anyone know if the new > machine has overcome this problem? If not, is it possible to use another > processing protocol with Procure 812 that doesnt involve the propylene > oxide step? > > Hope you can help. > > Cheers, > Jamie > > Mr Jamie Chapman BSc(Hons) > Senior ...
There is provided an underlayer coating forming composition for lithography that is used in lithography process of manufacture of semiconductor device; and an underlayer coating having a high dry etching rate compared with photoresist. Concretely, it is a composition for forming an underlayer without use of crosslinking reaction by an strong acid catalyst, and an underlayer coating forming composition containing a component having an epoxy group (a polymer, a compound) and a component having a phenolic hydroxyl group, a carboxyl group, a protected carboxyl group or an acid anhydride structure (a polymer, a compound).
To study the effect of stereoisomeric structures of curing agents on curing behaviors, thermal and mechanical properties of epoxy resins, DGEBA(diglycidyl ether of bisphenol A) epoxy resin and 3,3- and 4,4-DDS(diaminodiphenyl sulfone) curing agents were selected. The curing initiation temperature and activation energy of DGEBA/3,3- DDS was lower than DGEBA/4,4-DDS. DGEBA/3,3-DDS has a faster curing rate and higher degree of cure than DGEBA/4,4-DDS, suggesting
Sigma-Aldrich offers abstracts and full-text articles by [B Kollbe Ahn, Jonggeun Sung, Yonghui Li, Namhoon Kim, Myles Ikenberry, Keith Hohn, Nihar Mohanty, Phong Nguyen, T S Sreeprasad, Stefan Kraft, Vikas Berry, Xiuzhi Susan Sun].
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Dolcet, M., Torres, M., and Canela-Garayoa, R. Raw and waste plant materials as sources of fungi with epoxide hydrolase activity. Application to the kinetic resolution of aryl and alkyl glycidyl ethers. Biocatalysis and Biotransformation 2017. 1- ...
"Enhance Electronic Performance with Epoxy Compounds". Design World. 2013. Demerjian, Charlie (2008-12-17), Nvidia chips show ...
"Enhance Electronic Performance with Epoxy Compounds". Design World. 2013. Joe Kelly. "Improving Chip on Board Assembly". 2004. ... It consists of a drop of specially formulated epoxy or resin deposited over a semiconductor chip and its wire bonds, to provide ... eliminating corona discharges due to the potting compound's high dielectric strength), so that the product can be smaller. This ...
Epoxy resins have been in use in U.S. industry for over 40 years. Epoxy compounds are also referred to as glycidyl compounds. ... These compounds are formed by reacting the polyol component with an isocyanate compound, typically toluene diisocyanate (TDI); ... The epoxy molecule can also be expanded or cross-linked with other molecules to form a wide variety of resin products, each ... Since these compounds act as catalysts for the reaction, they must contain active sites on their molecules. Some of the most ...
"Epoxy Compounds: Aromatic Diglycidyl Ethers, Polyglycidyl Ethers, Glycidyl Esters, and Miscellaneous Epoxy Compounds", Patty's ... Diglycidyl ethers are chemical compounds used as a reactive diluents for epoxy resin. Other uses include treating textiles and ... As a class of compounds, there are a number of them available commercially with much lower toxicity profiles. One such example ... is epoxy resin itself Bisphenol A diglycidyl ether NIOSH Pocket Guide to Chemical Hazards. "#0215". National Institute for ...
... is an organic compound used as constituent of epoxy resins. The compound is a colorless solid (commercial samples can appear ... The most common curing agents for epoxy resins are polyamines, aminoamides, and phenolic compounds. Bisphenol A has attracted ... The epoxide content of such epoxy resins is of interest. This parameter is commonly expressed as the epoxide number, which is ... Bisphenol AF (BPAF) Bisphenol S (BPS) EPI-001 Pham, Ha Q.; Marks, Maurice J. (2012). "Epoxy Resins". Ullmann's Encyclopedia of ...
Greene JF, Newman JW, Williamson KC, Hammock BD (April 2000). "Toxicity of epoxy fatty acids and related compounds to cells ... In its application as an epoxy oil, vernonia oil competes with soybean or linseed oil, which supply most of the market for ... Cahoon EB, Ripp KG, Hall SE, McGonigle B (February 2002). "Transgenic production of epoxy fatty acids by expression of a ...
... plastics are made from epoxy containing a compound called bisphenol S (BPS). BPS shares a similar structure and versatility to ... Epoxy resin may or may not contain BPA, and is employed to bind gutta percha in some root canal procedures. In the early 1930s ... Epoxy resins derived from bisphenol A are used as coatings on the inside of almost all food and beverage cans; however, due to ... The FDA banned the use of BPA in baby bottles and sippy cups (July 2012) as well as the use of epoxy resins in infant formula ...
Greene, J. F.; Newman, J. W.; Williamson, K. C.; Hammock, B. D. (2000). "Toxicity of epoxy fatty acids and related compounds to ... 13R-epoxy-9(Z)-octadecaenoic acid and (-)12R,13S-epoxy-9(Z)-octadecaenoic acid, i.e. the (+) and (-) epoxy optical isomers of ... epoxy optical isomers viz., 9S,10R-epoxy-12(Z)-octadecaenoic and 9R,10S-epoxy-12(Z)-octadecaenoic acids. This (+) and (-) ... It is a mixture of the two optically active isomers of 12(Z) 9,10-epoxy-octadecenoic acid. This mixture is also termed 9,10- ...
Greene, J. F.; Newman, J. W.; Williamson, K. C.; Hammock, B. D. (2000). "Toxicity of epoxy fatty acids and related compounds to ... epoxy optical isomers viz., the 9S,10R-epoxy-12(Z)-octadecaenoic and 9R,10S-epoxy-12(Z)-octadecaenoic acids; this set of ... 6-epoxy-8Z,11Z,14Z-eicosatetrienoic acid), 11,12-EET (i.e. 11,12-epoxy-5Z,8Z,14Z-eicosatetrienoic acid), and/or 14,15-EET (i.e ... 13R-epoxy-9(Z)-octadecaenoic and 12R,13S-epoxy-9(Z)-octadecaenoic acid optical isomers; this set of optical isomers is also ...
Sawn plywood wing ribs are bonded to the aluminum tube spars using a filled epoxy compound. The Avid Flyer features Junkers ...
Some amateur propellants use potassium nitrate, combined with sugar, epoxy, or other fuels and binder compounds. Potassium ... Also the newly synthesized bishomocubane based compounds are under consideration in the research stage as both solid and liquid ... perchlorate has been used as an oxidizer, paired with asphalt, epoxy, and other binders. Propellants that explode in operation ...
The packaging often limits the maximum junction temperature, due to the molding compound and (where used) epoxy characteristics ...
The last step is to saturate concrete or polyester domes with a thin layer of epoxy compound to shed water. Some concrete domes ... The nuts are usually set with removable locking compound, or if the dome is portable, have a castellated nut with a cotter pin ... The three members comprising the triangular frame are often cut at compound angles to provide for a flat fitting of the various ...
Various types of industrial materials such as epoxy moulding compound, alumina metallizing, silicone etc. are produced in 13 ...
... , also called oxetan-3-one or 1,3-epoxy-2-propanone, is a chemical compound with formula C3H4O2. It is the ketone of ...
... s are in the class of compounds called reaction polymers, which include epoxies, unsaturated polyesters, and ... Epoxy, metal-filled epoxy, and metal-coated epoxy is used for tooling that has an EOL in the tens of thousands of parts. It is ... Chain extenders (f = 2) and cross linkers (f ≥ 3) are low molecular weight hydroxyl and amine terminated compounds that play an ... The heat transfer characteristic of epoxy tooling is fair; the heat transfer characteristic of metal-filled and metal-coated ...
Tooling can be made of metal, such as aluminum, or epoxy molding compounds depending on how the tooling will be used. Guards ...
... β-epoxy carbonyl compounds. Swern and Parikh-Doering conditions are most commonly applied to accomplish these oxidations. (14) ... 13) Oxidation of epoxy alcohols generated via Sharpless epoxidation is a third method for the enantioselective synthesis of ...
A compound containing the epoxide functional group can be called an epoxy, epoxide, oxirane, and ethoxyline. Simple epoxides ... The precursor compounds are called halohydrins and can be generated through halohydration of an alkene. Starting with propylene ... A polymer formed from epoxide precursors is called an epoxy, but such materials do not contain epoxide groups (or contain only ... The reaction of epoxides with amines is the basis for the formation of epoxy glues and structural materials. A typical amine- ...
Chemical compounds used in the internal coating of the can include types of epoxy resin. Modern cans are generally produced ...
A compound containing the epoxide functional group can be called an epoxy, epoxide, oxirane, and ethoxyline. Simple epoxides ... The precursor compounds are called halohydrins.[18] Starting with propylene chlorohydrin, most of the world's supply of ... A polymer formed from epoxide precursors is called an epoxy, but such materials do not contain epoxide groups (or contain only ... Thus, the epoxide of ethylene (C2H4) is ethylene oxide (C2H4O). Many compounds have trivial names; for instance, ethylene oxide ...
Unlike silicone or PTFE, carnauba is suitable for use with liquid epoxy, epoxy molding compounds (EMC), and some other plastic ... The compounds are predominantly derived from acids and alcohols in the C26-C30 range. Distinctive for carnauba wax is the high ...
... polyurethane potting at Curlie silicone potting at Curlie epoxy resin potting at Curlie adhesive potting compounds at Curlie v ... Making of Epoxy Resins, Process for Manufacture of Epoxy Resins, Epoxy Resin Manufacturing Plant, Epoxy Resin Plant, Epoxy ... Epoxy Resin Manufacturing Unit, Epoxy Resin Production, Epoxy Resins in Industry, Manufacture of Epoxy Resins. ASIA PACIFIC ... Epoxy Resin Adhesives and Epoxy Coatings): Manufacturing Process of Epoxy Resins, Manufacturing Process of Epoxy Resins, ...
However, the vast majority of DIPs are manufactured via a thermoset molding process in which an epoxy mold compound is heated ... DIP packages are usually made from an opaque molded epoxy plastic pressed around a tin-, silver-, or gold-plated lead frame ... an epoxy or grout is used to hermetically seal the two halves together, providing an air and moisture tight seal to protect the ... with a hard translucent epoxy material from which the leads emerge. Others, such as DIP switches, are composed of two (or more ...
... from faux stucco to styrofoam crown molding and travertine compounded from epoxied marble dust), McMansion buyers are eager; ...
... epoxy-based industrial floor coverings for floor areas in private and industrial premises, sealing compounds to be applied ... sealing compounds for the building trade, wall smoothing compounds for smoothing wall surfaces, floor covering and parquetry ... Using the "quick-setting smoothing compounds", top floor cover can be laid as soon as after one hour. In the course of the ... The company managed to reduce the drying periods of sub-floor smoothing compounds. This invention enabled the company to ...
... curing and sealing compounds, structural grouts, epoxy adhesives, Floor hardeners and toppings, joint fillers Insulated ... specialty epoxy resins and other intermediates The Consumer Group manufactures and markets professional use and do-it-yourself ... chemical admixtures and industrial epoxy flooring systems Concrete and masonry admixtures, concrete fibers, ...
There have been two issues over the years: the first was red phosphorus in epoxy molding compounds inducing elevated leakage ... epoxy resins or polyurethanes). The flame retarding effect is based on the formation of polyphosphoric acid. Together with the ... From Dimers to Hexamers-First Steps on the Way to Phosphorus-Carbon Cage Compounds". Angewandte Chemie International Edition in ...
Other uses are e.g. flame retardant in epoxy molding compounds, a ceramic flux in some ceramic glazes, reactive self-sealing ...
... mismatch between the epoxy molding compound (EMC), the leadframe, the die, the die adhesive, and the wire bond. This leads to ... brittle gold-aluminum intermetallic compound) sometimes associated with pure gold bonding wire. Aluminum is particularly ...
The compound is one of the benzopyrenes, formed by a benzene ring fused to pyrene, and is the result of incomplete combustion ... Solution structure of a cis-opened (10R)-N6-deoxyadenosine adduct of (9S,10R)-9,10-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene in a ... In 1933, BaP was determined to be the compound responsible for these cases, and its carcinogenicity was demonstrated when skin ... The ubiquitous compound can be found in coal tar, tobacco smoke and many foods, especially grilled meats. The substance with ...
... with silicone epoxy. The epoxy is applied around the edges of the device, preventing air from entering or leaving the interior. ... Concentrations of polyphosphates or phosphonates with zinc and chromates or similar compounds have been maintained in cooling ... and phosphorus compounds may provide the limiting essential nutrient for algal growth contributing to biofouling of the cooling ...
"Epoxy.dow.com. Retrieved 2010-03-15.. *^ Martinot (Lead Author), Eric (2008). "Renewables 2007. Global Status Report" (PDF). ... as the sulfur compounds in petrodiesel provide much of the lubricity. ... Epichlorhydrin is a raw material for epoxy resins. ...
Epoxy is the end product of epoxy resins. It is also a common name for the epoxide functional group, and a common name for a ... Epoxy resins are a class of reactive polymers which contain epoxide groups. Their co-reactants are often called 'hardeners' or ... Definition of epoxy resin, noun, from the Cambridge Advanced Learner's Dictionary & Thesaurus, Cambridge University Press. ... A syringe of "5-minute" epoxy, containing separate compartments for each of the two components ...
P. M.F.J. Costa, U. K. Gautam, Y. Bando and D. Golberg : «The electrical delivery of a sublimable II-VI compound by vapor ... C. Y. Zhi, Y. Bando, T. Terao, C. Tang and D. Golberg : «Dielectric and thermal properties of epoxy/boron nitride nanotube ... G. Dmitri, Y. Bando, Z. Dong, C. TANG, Y. Uemura : «Structure transport and field-emission properties of compound nanotubes: ... G. Dmitri, Y. Bando, Z. Dong : «SyntesisAnalysisand Electrical Property Measurements of Compound Nanotubes in the B-C-N Cermaic ...
This same feature makes it easier to clean than some solvent and epoxy like two part component inks. Also there are heat ... compound angles, textures, concave, or convex surfaces. ...
rifle bedding: a process of filling gaps between the action and the stock of a rifle with an epoxy based material. ... pinfire: an obsolete type of brass cartridge in which the priming compound is ignited by striking a small pin that protrudes ... The look is created with an abrasive brush and compound that roughs the surface of the metal in a circular pattern. ... This is compounded by rapid firing, which heats and weakens the steel. ...
Casting may be used to form hot liquid metals or various materials that cold set after mixing of components (such as epoxies, ... This results when sulfuric acid in the rain chemically reacts with the calcium compounds in the stones (limestone, sandstone, ...
Epoxy resin: a two-part thermosetting polymer increasingly used in modern wooden boat building variously as an adhesive, filler ... preshaped panels ply are bent into compound curves and sewn together. Little or no framework or longitudinal wood is used. This ... No plywood is rot resistant and should be coated with epoxy resin and/or a good paint system. Varnish and Linseed oil should ... Okoume ply is commonly coated with epoxy to increase strength and impact resistance as well as to exclude water. Both types of ...
4,5α-epoxy-3-methoxy-17-methylmorphinan-6-one tartrate (1:1) hydrate (2:5). acetaminophen and hydrocodone. Vicodin ... "Experimental Compound Codes". Science. Hinango noong 20 November 2015.. *↑ "Generic Name Stems". National Library of Medicine. ...
Weak polar bonds are electrostatic and correspond to simple attractions between dipoles in compounds or molecules with ... https://www.researchgate.net/publication/292208855_Length-scale_dependence_of_variability_in_epoxy_modulus_extracted_from_ ...
The most common polymers used are: polyester, polyurethane, polyester-epoxy (known as hybrid), straight epoxy (fusion bonded ... Powder coatings contain no solvents and release little or no amount of volatile organic compounds (VOC) into the atmosphere. ... See the article "Fusion Bonded Epoxy Coatings" Another type of gun is called a tribo gun, which charges the powder by ( ... Because no carrier fluid evaporates away, the coating process emits few volatile organic compounds (VOC). Finally, several ...
The compound ethyl 2-cyanoacrylate is available as Epiglu.[21] Archery[edit]. Cyanoacrylate is used in archery to glue ... epoxy putty) to allow the new frag to grow out. It is safe to use directly in the tank, unlike silicone which must be cured to ... There are three cyanoacrylate compounds currently available as topical skin adhesives. 2-Octyl cyanoacrylate is marketed as ... unlike epoxies, and a very thin layer bonds more effectively than a thicker one that does not cure properly; they bond many ...
The number of parts per connector, polishing of the fibers, and the need to oven-bake the epoxy in each connector made ... These are extremely versatile compounds, in that they can be crystalline or amorphous, metallic or semiconducting, and ... is effectively the same compound (e.g. an aluminosilicate, germanosilicate, phosphosilicate or borosilicate glass). ...
Pages in category "Chemical compounds". The following 91 pages are in this category, out of 91 total. ... Retrieved from "https://simple.wikipedia.org/w/index.php?title=Category:Chemical_compounds&oldid=5866804" ...
Chemical compound. The correct title of this article is Benzo[a]pyrene. The substitution of any brackets is due to technical ... Solution structure of a cis-opened (10R)-N6-deoxyadenosine adduct of (9S,10R)-9,10-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene in a ... The compound is one of the benzopyrenes, formed by a benzene ring fused to pyrene, and is the result of incomplete combustion ... In 1933, BaP was determined to be the compound responsible for these cases, and its carcinogenicity was demonstrated when skin ...
... assembled using an epoxy resin adhesive.[35][36][37] Noted for their durability, these magazines did however compromise the ... but were actually fabricated from two-parts of AG-S4 molding compound (a glass-reinforced phenol-formaldehyde binder ...
nucleophilic substitution especially to small strained rings like epoxy [10] and aziridines ...
bisphenol A - a type of "double" phenol used in polymerization in epoxy resins and making a common type of polycarbonate *epoxy ... Some chemical compounds made from petroleum are also obtained from other fossil fuels, such as coal or natural gas, or ... epichlorohydrin - chloro-oxirane; used in epoxy resin formation *epoxy resins - a type of polymerizing glue from bisphenol A, ... Formaldehyde Moulding Compound (FMC). n-Hexene. Linear alkyl benzene (LAB). Methanol. Methyl tert-butyl ether (MTBE) Phenol. ...
Forms an explosive compound with copper. Barium nitrate - most common oxidizer/colorant for green and white colors, but with ... 2-epoxy propyl)-4-aminophenol, and isophorone diisocyanate. Bonding agents. Used to increase the level of bonding between the ...
The shell of the cashew nut contains oil compounds that can cause contact dermatitis similar to poison ivy, primarily resulting ... Novolac is another versatile industrial monomer deriving from cardanol typically used as a reticulating agent for epoxy ...
Ingesting a compound by smoking is one of the most rapid and efficient methods of introducing it into the bloodstream, second ... 10-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene in a fully complementary DNA duplex: evidence for a major syn conformation". ... In smoking, long term exposure to compounds found in the smoke (e.g., carbon monoxide and cyanide) are believed to be ... As well, smoke undergoes changes as it ages, which causes the transformation of the compound NO into the more toxic NO2. ...
This type of adhesive includes thermoset epoxies, urethanes, and polyimides. Moisture curing adhesives cure when they react ... Ralph D. Hermansen (16 March 2017). Polymeric Thermosetting Compounds. Apple Academic Press. p. 31. ISBN 9781771883153. . ... The first use of compound adhesives was discovered in Sibudu, South Africa. Here, 70,000-year-old stone segments that were once ... This reaction causes polymers to cross-link[30] into acrylics, urethanes, and epoxies - See thermosetting polymers. ...
"Vacuum Degassing Epoxy & Silicone" (PDF). LACO Technologies, Inc. Retrieved February 10, 2012.. ... "Vacuum is the process of using vacuum to remove gases from compounds which become entrapped in the mixture when mixing the ...
4-Epoxy-6-methylcyclohexylmethyl-3,4-epoxy-6-methylcyclo-hexanecarboxylate cis-9,10-Epoxystearic acid Estazolam Ethionamide ... compounds Chromium, metallic Chrysene Chrysoidine CI Acid Orange 3 Cimetidine Cinnamyl anthranilate CI Pigment Red 3 Citrinin ... Selenium and selenium compounds Semicarbazide hydrochloride Seneciphylline Senkirkine Sepiolite Shikimic acid Silica, amorphous ... Isophosphamide Isopropanol Isopropyl oils Isosafrole Jacobine Kaempferol Kojic acid Lauroyl peroxide Lead compounds, organic ...
Chemical compound. Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of ... However, solid PP objects not subject to undue flexing can be satisfactorily joined with a two-part epoxy glue or using hot- ... Like all organic compounds, polypropylene is combustible.[71] The flash point of a typical composition is 260 °C; autoignition ... These catalysts are activated with special cocatalysts containing an organoaluminum compound such as Al(C2H5)3 and the second ...
It is also one of the chemical compounds found in castoreum. This compound is ingested from the plants the beaver eats.[50] ... It is a component of industrial paint strippers used in the aviation industry for the removal of epoxy, polyurethane and other ... Phenol is an aromatic organic compound with the molecular formula C6H5OH. It is a white crystalline solid that is volatile. The ... The word phenol is also used to refer to any compound that contains a six-membered aromatic ring, bonded directly to a hydroxyl ...
Miramontes Luis E. (1961), Process for the production of 3beta-hydroxy-16alpha, 17alpha-epoxy-5-pregnen-20-one, United States ... Carl Djerassi, Luis Miramontes (1956), Cyclopentanophenanthrene derivatives and compounds, United States Patent 2759951. ... Chang at the Worcester Foundation that a compound sent to be tested by the G. D. Searle Pharmaceutical Company was, contrary to ... Miramontes who conducted the last step of the first synthesis of the compound: "On 15 October 1951, Luis Miramontes, a young ...
These devices employed compound semiconductor chips fabricated with the planar process (developed by Jean Hoerni,[41][42] based ... The flat bottom surfaces of the anvil and post embedded inside the epoxy act as anchors, to prevent the conductors from being ... Iwasa, Naruhito; Mukai, Takashi and Nakamura, Shuji U.S. Patent 5,578,839 "Light-emitting gallium nitride-based compound ... Some phosphor-based white LEDs encapsulate InGaN blue LEDs inside phosphor-coated epoxy. Alternatively, the LED might be paired ...
Precursor to Al compoundsEdit. Aluminium hydroxide is a feedstock for the manufacture of other aluminium compounds: speciality ... epoxies, PVC and rubber.[18] ... These compounds together are the major components of the ... This compound is also used to control hyperphosphatemia (elevated phosphate, or phosphorus, levels in the blood) in people and ...
Epoxy Potting Compound DP270 is low viscosity for easy dispensing and potting. It is non-corrosive to copper, minimal exotherm ... Epoxy Compound Features 70 Minute Work Life Our 3M™ Scotch-Weld™ Epoxy Potting Compound DP270 is a rigid, two-part epoxy ... 3M™ Scotch-Weld™ Epoxy Potting Compound/Adhesive DP270 Black (PDF) * 3M™ Scotch-Weld™ Epoxy Potting Compound/Adhesive 270 Clear ... 3M™ Scotch-Weld™ Epoxy Potting Compound/Adhesive DP270 Black (PDF) * 3M™ Scotch-Weld™ Epoxy Potting Compound/Adhesive 270 Clear ...
... an epoxy resin base and a hardener, in the form of a paste.This compound has been used typically for non-structural bonding of ... This specification covers a two-component adhesive compound, ... This compound has been used typically for non-structural ... Epoxy Resin, High Temperature Application AMS3692. This specification covers a two-component adhesive compound, an epoxy resin ...
MGC-832B MG Chemicals 832B Epoxy Encapsulating and Potting Compound is a non-porous epoxy which once set, cannot be removed. ... Epoxy Encapsulating and Potting Compound. MGC-832C (Clear) Epoxy Encapsulating and Potting Compound. Once Potted Your Board is ... 832B Black Epoxy Encapsulating & Potting Compound Specifications. 832C Clear Epoxy Encapsulating & Potting Compound ... The clear epoxy leaves your PC Board open to viewing but still protected from harmful moisture, impact, dirt, debris, chemicals ...
The ratio of the total number of amino groups of the amine compound to the total number of epoxy groups of the epoxy resins is ... a first component comprising a first epoxy resin and a second epoxy resin, the second epoxy resin being flexibilized by an ... said amine compound having a molecular weight of less than 450 g/mol. ... elastomer, and b) a second component comprising at least one amine compound with one or more primary and/or secondary amino ...
Epoxy Potting Compound DP270 is low viscosity for easy dispensing and potting. It is non-corrosive to copper, minimal exotherm ... Epoxy Compound Features 70 Minute Work Life Our 3M™ Scotch-Weld™ Epoxy Potting Compound DP270 is a rigid, two-part epoxy ... Formulations can be created to make epoxy for plastic flexible or epoxy for metal rigid, epoxy resin transparent or opaque, ... 3M™ Scotch-Weld™ Epoxy Potting Compound DP270, Black, 400 mL Duo-Pak, 6/case. 3M ID 62326635307, 3M Product Number 270, UPC ...
Epoxy Molding Compounds for Semiconductors. Organic Substrates (BGA) *KE-G1250 Series Low-Warpage EMC for transfer molding ...
Sika Primer 1 Solvent-Based Epoxy Resin Compound 1Ltr for $100 - Compare prices of 105168 products in Tools and Hardware from ... Sika Primer 1 Solvent-Based Epoxy Resin Compound 1Ltr. Used to promote adhesion to clean, sound and dry concrete, masonry and ... 50ML Epoxy Resin Gun Dispenser Static Mixer.... Description: 50ML Epoxy Resin Gun Dispenser Static Mixer Mixing Nozzle Gun ... 3M Microfinishing Compound 3.78 Ltrs (3M.... Details: Size: 3.78 Litres 3M Microfinishing Compound Applications: Please Note: ...
... low viscosity optical epoxy which will cure in thick sections at room temperature. In thin section, it is clear and transparent ... About Opti-tec 5020-1 Clear Epoxy Potting Compound. Opti-tec 5020-1 is a clear, two component, low viscosity optical epoxy ... Home / Potting & Encapsulation / Potting Compounds / Opti-tec 5020-1 Clear Epoxy Potting Compound. ... Opti-tec 5007 Clear Epoxy Adhesive for Optics. Opti-tec 5007 is a two component, low viscosity clear epoxy adhesive with a two ...
... is a urethane modified epoxy gel featuring outstanding, unique properties. It is ... Epoxy Gel Compound For Sealing And Encapsulation. Master Bond. Our focus has been on developing the best in epoxies, silicones ... Epoxy Gel Compound for Sealing and Encapsulation. Posted Friday, September 01, 2017 ... Master Bonds latest epoxy innovation, Super Gel 9, is a urethane modified epoxy gel featuring outstanding, unique properties. ...
Potting Compounds & Encapsulants Primers & Activators Retaining Compounds Rubber / Gasket Adhesives Silicones & Sealants * ... Star Technology ER7415 Epoxy Compound, 10 lb, Natural. ID: STARER7415G , Mfr ID: ER7415G Manufactured by: Star Technology. ... Insulating Compounds Insulation Paper and Film Rigid Laminate * Glasrod Solid Rod / Bar ... ER7415 is a single part heat cure epoxy designed for high bonding strength under high heat conditions with controlled flow ...
... component having an epoxy group (a polymer, a compound) and a component having a phenolic hydroxyl group, a carboxyl group, a ... protected carboxyl group or an acid anhydride structure (a polymer, a compound). ... methacrylate compound, acrylamide compound, methacrylamide compound, vinyl compound, styrene compound, maleimide compound, ... a methacrylate compound, an acrylamide compound, a methacrylamide compound, a vinyl compound, a styrene compound, a maleimide ...
... temperature-dependent residual moisture content and hygroscopic swelling of epoxy molding compounds exposed to moist ... residual moisture content and hygroscopic swelling of epoxy molding compounds. ... Moisture absorption and desorption tests of two molding compounds and two IC packages using these materials have been carried ...
This report covers recent developments in the chemistry and technology of epoxy resins, concentrating primarily on material ... Synthesis, manufacture and charactrization of epoxy monomers, cure reactions of epoxy resins, spectroscopic and analytical ... Recent Developments in Epoxy Resins. Author: Industry Report ISBN 978-1-85957-083-8. Published: 1996 softbound. ... This report covers recent developments in the chemistry and technology of epoxy resins, concentrating primarily on material ...
Rubber Analysis - Polymers, Compounds and Products. Author: M.J. Forrest ISBN 978-1-85957-305-1. Published: 2002 pages: 148. ... Rubber compounds are notoriously difficult to analyse. The rubber may contain a variety of additives including other polymers, ... Compounds may contain over 15 different ingredients, some present at very low levels. During vulcanisation chemical reactions ... A wide variety of techniques can be used to discover different facts about a rubber compound. For example, elemental analysis ...
3M Scotch-Weld Epoxy Adhesive 1838L Translucent Part B/A, 2 fl oz Tube Kit, 6 per case. ... 3M Scotch-Weld Epoxy Adhesive 3501 Gray Part B/A, 2 fl oz Kit, 6 Kits per case. ... 3M Scotch-Weld Epoxy Adhesive 1751 Gray Part B/A, 2 fl oz Kit, 6 per case. ... 3M Scotch-Weld Epoxy Adhesive 1838 Green Part B/A, 2 fl oz Kit, 6 per case. ...
COMPOSITIONS COMPRISING ESTOLIDE COMPOUNDS AND METHODS OF MAKING AND USING THE SAME , PLASTICIZER COMPOSITION WHICH CONTAINS A ... EPOXY ESTER COMPOUND, CELLULOSE ESTER RESIN COMPOSITION, OPTICAL FILM, AND LIQUID-CRYSTAL DISPLAY DEVICE. The present invention ... COMPOSITIONS COMPRISING ESTOLIDE COMPOUNDS AND METHODS OF MAKING AND USING THE SAME. Provided herein are compositions ... EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, PREPREG AND FIBER-REINFORCED COMPOSITE MATERIAL. Provided are ...
... is a highly impact resistant and well made product for security over personal ... Epoxy Encapsulating and Potting Compound from MG Chemicals. This epoxy is non-conductive and is easy to make. Mix, pour, and in ... you can choose the clear version of MG Chemicals Epoxy Encapsulating and Potting Compound. ... The black Epoxy is one option; if you only wish to protect your electronics and not cover them in color, ...
The global Epoxy Molding Compounds market was valued at 1888.... ... Check for Discount on 2021-2027 Global and Regional Epoxy ... Molding Compounds Industry Status and Prospects Professional Market Research Report Standard Version report by HNY Research. ... 1.5.2 Global Epoxy Molding Compounds Market Size Analysis from 2022 to 2027 by Value. 1.5.3 Global Epoxy Molding Compounds ... 2.1.2 Global Epoxy Molding Compounds Revenue and Market Share by Type (2016-2021). 2.2 Global Epoxy Molding Compounds (Volume ...
Sikadur-31 SBA Normal Set is a unique epoxy resin system available in three application temperature ranges. A unique high- ... Scrape down the sides of the mixing pail and ensure there are no streaks of unmixed epoxy before applying. Mix only that ... High-modulus, high-strength, moisture tolerant, epoxy paste adhesive Sikadur®-31 SBA Normal Set is a unique high-modulus 2- ... Remove dust, laitance, grease, curing compounds, impregnations, waxes, foreign particles, disintegrated materials and any other ...
Source Potting Compounds at rs-online.com along with other Adhesives & Glues products. The worlds largest high service ... Types of compounds. Epoxy Potting Compounds - Epoxy potting compounds generally perform as a better adhesive, high temperature ... Potting Compounds. Potting compounds are a general-purpose types of sealant that can offer environmental, mechanical and ... Acrylic Potting Compounds - Acrylic potting compounds are UV and heat hardening materials. They benefit from very fast ...
Epoxy Compounds or Resins. Another preferred type of other ingredient is an epoxy compound or resin. Preferably such a compound ... even if it does contain epoxy groups, is not considered herein part of this epoxy compound or resin). This epoxy material is ... Useful epoxy compounds or resins include Epon® 1002F, 1009F or 1031 (Resolution Performance Products, Houston, Tex.), or ... A plasticizer is typically a compound or mixture of compounds with a melting point of about 50° C. or less with a(n) (average) ...
This selection includes insulating compounds, epoxy repair sticks and much, much more all in stock now. ... High quality epoxy adhesives and repair compounds are available online with fast delivery around Australia. ... Electrical Compounds 1 Epoxy Adhesives, Coatings & Compounds 33 Epoxy Repair Sticks 10 Liquid Epoxy Adhesives & Coatings 10 ... Plastic Metal B Steel Filled Epoxy Compound A viscous, steel-filled epoxy compound for casting, resurfacing and filling ...
... Current Location : Home > epoxy concrete crack and joint floor repair ... Abocrete™ Kit Epoxy Concrete Repair Resurfacing Liquid Epoxy Compound for Patching Resurfacing and Rebuilding Concrete. Uses ... Epoxy Repair of Concrete Floors Epoxy News and Tips. Epoxy Product #11 Saw-Cut Control Joint Filler is a 100 solids zero (0) ... Epoxy Repair of Concrete Floors Epoxy News and Tips. Epoxy Product #11 Saw-Cut Control Joint Filler is a 100 solids zero (0) ...
EXAMPLE #3 EPOXY COMPOUNDS CROSSLINKING Following the steps for making solidifiable chitosan solution or other biological ... The compound (such as collagen-drug-genipin compound, the chitosan-drug-genipin compound, or combinations thereof) and methods ... It is further treated with a crosslinking agent, for example genipin or epoxy compounds, to enhance the biodurability and ... In one embodiment, the crosslinker may further comprise epoxy compounds, dialdehyde starch, glutaraldehyde, formaldehyde, ...
Water-dispersible epoxy urethane compounds of the aqueous coating compositions are also provided.. Claims:. 1. An aqueous ... Patent application title: WATER DISPERSIBLE EPOXY URETHANE COMPOUNDS AND COATING COMPOSITIONS. Inventors: Umesh D. Harkal ( ... 0070] The epoxy urethane resin:PACM had a slightly lower impact resistance than the epoxy urethane resin:Anquamine 419 and was ... The peaks at 45 and 50 ppm for epoxy group and at 59, 70, and 72 ppm for mPEG molecule indicated that the epoxy group and mPEG ...
Buy RS PRO Black Epoxy Potting Compound 50 g or other Potting Compounds online from RS for next day delivery on your order plus ... RS PRO Black Epoxy Potting Compound 50 g. RS-stocknr.. :. 199-1402. Fabrikant. :. RS PRO. ... RS Pro Black Epoxy Potting Compound (EN - SDS). *. ... What is This Epoxy Resin Potting Compound Used For?. Whats in ... 3 Dimethylbenzene, Epoxy Resin, Formaldehyde, Neodecanoic Acid Glycidyl Ester, Polymer with 1. ...
Buy RS PRO Black Flame Retardant Epoxy Potting Compound or other Potting Compounds online from RS for next day delivery on your ... What is Epoxy Resin Potting Compound?. This epoxy resin is a type of electronic potting compound used for encasing or ... What is This Epoxy Resin Potting Compound Used For?. This black epoxy resin is designed to provide protection to electrical ... This black epoxy potting compound is supplied in twin pack format. One pack contains the epoxy resin and one contains the ...
Epic Resins is a leading formulator of custom polyurethane compounds designed as an alternative to silicone options. Learn more ... Polyurethanes are replacing silicones as the electronic potting compound of choice for many manufacturers. ... about the advantages switching to polyurethane potting compounds and encapsulants. ... Epic Resins is the Polyurethane and Epoxy Potting Compound Experts. Manufacturers looking to switch a products electronic ...
Producing high quality Intermediate Clear Epoxy Casting Resin Cured Compounds 2.00% Max Volatile Content products. ... High quality Intermediate Clear Epoxy Casting Resin Cured Compounds 2.00% Max Volatile Content from China, Chinas leading ... 3. Epoxy resin compounds available having a long pot life. 4. Cured epoxy resin compounds available having excellent heat ... No Impurity Epoxy Curing Agent , Heat Resistant Epoxy Resin Good Leakproofness Low Volatility Clear Resin And Hardener MTHPA , ...
  • This specification covers a two-component adhesive compound, an epoxy resin base and a hardener, in the form of a paste. (sae.org)
  • This compound has been used typically for non-structural bonding of metals and thermosetting plastics, to themselves and to each other, and as an adhesive for electrical components and devices operating at not higher than 260 degrees C (500 degrees F), but usage is not limited to such applications. (sae.org)
  • The present invention relates to a two-component epoxy adhesive composition comprising a) a first component comprising a first epoxy resin and a second epoxy resin, the second epoxy resin being flexibilized by an elastomer, and b) a second component comprising at least one amine compound with one or. (google.com)
  • Our 3M™ Scotch-Weld™ Epoxy Potting Compound DP270 is a rigid, two-part epoxy adhesive with a 1:1 mix ratio and 70 minute work life. (3m.com)
  • Our focus has been on developing the best in epoxies, silicones, polyurethanes, polysulfides, UV cures and other specialty adhesive systems. (eeweb.com)
  • Epoxy Potting Compounds - Epoxy potting compounds generally perform as a better adhesive, high temperature resistance, and chemical resistance. (rs-online.com)
  • An extremely high strength adhesive, our Easy-Mix N 50 Epoxy is ideal for high strength bonding of metal, plastic, wood, ceramic, stone, glass and more. (swiftsupplies.com.au)
  • Fast curing, high strength epoxy adhesive used on a wide range of materials. (swiftsupplies.com.au)
  • Epoxy Minute Adhesive can be dispensed by hand and requires no special tools. (swiftsupplies.com.au)
  • Mar 11 2021 · PC-Concrete Two-Part Epoxy Adhesive Paste for Crack Repair PC Concrete is a well-known name in this industry. (szklarz-manczak.pl)
  • This epoxy adhesive paste for concrete crack repair is one of the best concrete crack fillers available in the market. (szklarz-manczak.pl)
  • used in curing agent , solvent-free paint, laminated board and epoxy adhesive. (epoxyresin-hardener.com)
  • 3M ScotchWeld DP-100 3-5 Minute Extra-Fast Setting Clear Epoxy Adhesive is a fast set/cure multipurpose, two-component, room temperature clear Epoxy adhesive of good strength and toughness. (epoxysupply.com)
  • Devcon 1-Minute Epoxy is a very popular extremly fast setting epoxy adhesive used in industrial, professional, and Do-It-Yourself applications. (epoxysupply.com)
  • Araldite 2010-1 structural adhesive is a fast cure, multipurpose, two component, room temperature curing, toughened Epoxy paste adhesive of extremely high strength and toughness. (epoxysupply.com)
  • Araldite 2013 is a Metal-Grey colored two component, room temperature curing, Epoxy paste adhesive that's high-strength and very tough. (epoxysupply.com)
  • Araldite 2014 is a Beige-Grey colored two component, room temperature curing, thixotropic Epoxy adhesive (Thick Gel that will also fill crevices). (epoxysupply.com)
  • Araldite 2015 is a semi-clear two-part, room temperature curing Epoxy gel adhesive that's high-strength and very tough. (epoxysupply.com)
  • Loctite EA (Hysol) 1C Epoxy Kit is a two-part, off-white color highly-versatile general-purpose epoxy adhesive and sealant. (epoxysupply.com)
  • How to repair the interconnecting piece fracture damage of air compressor muffler with our BD805 anti wear abrasion corrosion resistant epoxy compound rubber and metal bonding adhesive Our company used Huibao brand air compressor muffler is made of crude rubber,the bonding strength of the screw hole shaft and muffler body. (wordpress.com)
  • Strengthen liquid anti wear abrasion resistant epoxy compound rubber coating used in vacuum rubber belt filter conveyor belt repairing and protecting The deposited adhesive layer and core layer of rubber conveyor belt,if there are parts damaged or abrasion,liquid and the foreign pollutant will immerse the deep layer of the rubber. (wordpress.com)
  • Araldite 2011 (also known as Araldite AW106 resin & HV953U hardner) structural adhesive is a slow set/slow cure, multipurpose, two component, room temperature Epoxy gel/paste adhesive of high strength and toughness. (epoxysupply.com)
  • Epoxy Adhesive fixes electrical coils. (thomasnet.com)
  • Tra-Bond CA20 thixotropic epoxy adhesive system is formulated for shorted turns, damaged end wire extensions, or other coil repair applications where high-fill, non-sag adhesive is needed. (thomasnet.com)
  • Adhesive Epoxies come in pre-formulated cartridges. (thomasnet.com)
  • Epoxy Adhesive has low vapor pressure. (thomasnet.com)
  • Epoxy Adhesive cures at low temperatures. (thomasnet.com)
  • TRA-BOND 400-5 thixotropic one-part epoxy system is used as a no-sag, non-drip staking and laminating adhesive. (thomasnet.com)
  • The adhesive layer is attached to the polyethylene film backing through thermal compounding . (burrillandco.com)
  • At the point when the adhesive is removed from the freezer, the epoxy mixture begins to cure slowly at room temperature. (justia.com)
  • Sand the door surface to smooth the spackle compound and to remove traces of adhesive used to attach the laminate. (ehow.com)
  • 3M™ Scotch-Weld™ epoxy potting compound/adhesive DP270 is a two-part, low viscosity epoxy resin system designed primarily for potting, sealing , and encapsulation of many electronic components and is available in clear or black. (globalspec.com)
  • Master Bond Supreme 34CA is a high strength structural epoxy adhesive featuring superior resistance to. (masterbond.com)
  • The ratio of the total number of amino groups of the amine compound to the total number of epoxy groups of the epoxy resins is 0.01:1 to 0.5:1. (google.com)
  • This report covers recent developments in the chemistry and technology of epoxy resins, concentrating primarily on material published in the last 6 years. (chemtec.org)
  • Synthesis, manufacture and charactrization of epoxy monomers, cure reactions of epoxy resins, spectroscopic and analytical methods of studying cure, techniques for modelling of cure, the use of additives and modifiers, and technology driven advances in applications are discussed. (chemtec.org)
  • Electronic potting and encapsulating compounds supplied by Epic Resins are formulated to provide consistent material performance to achieve the most exacting electronic potting application properties. (epicresins.com)
  • Epic Resins offers an extensive range of potting compounds to accommodate many applications. (epicresins.com)
  • From solar panel adhesives and bonding compounds to electrical component encapsulation materials, Epic Resins is a leading supplier of resins to suit the intense environmental conditions common to solar energy system components. (epicresins.com)
  • Epic Resins polyurethane and epoxy resin encapsulating compounds keep your products protected from moisture and demonstrate great hydrolytic stability in many different temperature environments. (epicresins.com)
  • Epic Resins epoxies and polyurethanes adhere to various J-Box case materials better than traditional, expensive silicones. (epicresins.com)
  • Contact the resin compound experts at Epic Resins for the best encapsulation materials. (epicresins.com)
  • Epic Resins is a leading manufacturer of custom potting compound formulations, allowing us to serve a wide range of industries and clients. (epicresins.com)
  • Contact the solar J-box potting compound formulators at Epic Resins today for more information on our superb renewable energy electronics protection materials. (epicresins.com)
  • As specialty formulators of adhesives, potting compounds, casting resins and cast parts, GS Polymers has provided excellent products and services to hundreds of customers over the years. (thomasnet.com)
  • Thermosetting resins such as epoxies are molded by either injecting or placing by hand a prepolymer mixture consisting of epoxy resin, hardener, catalyst and various modifiers and fillers into a mold and heating for a time sufficient to complete the chemical reactions between the epoxy resin and the hardener, resulting in a thermosetting polymer having the shape and size of the mold. (justia.com)
  • Fire-Resistant Epoxy Resins Containing Organophosphorus Compounds. (routledge.com)
  • 2. A no-flow underfill material as claimed in claim 1 , wherein said epoxy resin is selected from the group consisting of cycloaliphatic epoxy resins, bisphenol A epoxy resins, bisphenol F epoxy resins, epoxy novolac resins, biphenyl epoxy resins, naphthalene epoxy resins, dicyclopentadiene-phenol epoxy resins, and mixtures thereof. (google.com.au)
  • 260'-348) f i COR O=C JT 0 Rs This invention relates to a new class of organic compounds which are useful in plastics and resins industry. (google.ca)
  • peracids are able to effect is that type of reaction which The compounds of this invention are useful as modifiers makes available the compounds of this invention, that is, for commercially important synthetic condensation resins, 3 the oxidation of unsaturated organic compounds to proand are particularly adapted for use as stabilizers and duce the corresponding epoxides. (google.ca)
  • Inks used were complex chemical mixtures containing epoxy and phenolic resins. (cdc.gov)
  • While resin acids are known to derive from heated materials containing rosin, heated inks containing epoxy and phenolic resins were suspected of generating resin acids. (cdc.gov)
  • Epoxy adhesives are part of the class of adhesives called "structural adhesives," which include polyurethane, acrylic, cyanoacrylate and others. (3m.com)
  • In general, epoxy adhesives have the highest overall strength and offer the best performance and most resistance to high temperatures, solvents and outdoor weathering. (3m.com)
  • Liquid Epoxy Adhesives for Bonding. (swiftsupplies.com.au)
  • Browse our range of Epoxy Adhesives, Coatings & Compounds. (swiftsupplies.com.au)
  • This range of industrial-grade products includes everything from fast setting, high strength adhesives to specialised types of metal filled epoxy for wear protection, corrosion prevention and large area bonding. (swiftsupplies.com.au)
  • Worker exposures to airborne rayon (61788770) flock and epoxy adhesives were surveyed on September 22 and 23, 1980 at M and B Metal Products, Incorporated (SIC-3480) in Leeds, Alabama. (cdc.gov)
  • Epoxies are used extensively as thermosetting adhesives for bonding wood, glass, ceramics and metals. (justia.com)
  • Industrial uses for 4,4'-MDA include as a curing agent for epoxy resin laminates, in industrial coatings for abrasion and corrosion resistance, in the formulation of high temperature polyester-imide wire coating enamels, in the production of chemically related derivatives, as a coreactant with polyurethanes, and in the production of electrical circuit boards. (cdc.gov)
  • High temperature anti impact wear abrasion resistant repair compound epoxy coatings used in dredger silt pump guard plate and guard jacket repairing and protecting The impeller diameter of Luji Ningjun 41 dredger slime pump is 1m,the weight of guard jacket is 2 tons, this pump is mainly used in pumping. (wordpress.com)
  • Suited for sealing and joining of metals, plastics, electrical insulations, protective coatings, and formed-in-place gaskets, Master Sil 700 silicone elastomer compound has dielectric strength of 530 V/mil and 400% elongation. (thomasnet.com)
  • Opti-tec 5020-1 is a clear, two component, low viscosity optical epoxy which will cure in thick sections at room temperature. (intertronics.co.uk)
  • Sikadur®-31 SBA Normal Set is a unique high-modulus 2- component, moisture-tolerant, solvent-free, epoxy resin system available in three application temperature ranges. (sika.com)
  • High temperature resistant epoxy glue that withstands 180°C continuous or 230°C short-term. (swiftsupplies.com.au)
  • Epox-Eez cartridges are available for company's General Purpose 4525N, Low Viscosity 4461N, Vibration Resistant 4535N, Fast Set 4537N, Ultra Flexible 4538N, and Machinable Epoxy 4540N high-temperature. (thomasnet.com)
  • Two component EMCAST 758 thermally conductive epoxy has moderate viscosity of 130,000 cp, glass transition temperature of 125°C, thermal conductivity of 3 W/mK, and is not electrically conductive. (thomasnet.com)
  • Thermally Conductive Epoxy cures at room temperature. (thomasnet.com)
  • It combines properties of moderate working life with ability to cure at temperatures as low as 60° C. Epoxy contains no volatile solvents and features excellent temperature resistance, hardness and strength. (thomasnet.com)
  • MH20-0686 is a very tough epoxy mold compound with excellent high temperature resistance. (solepoxy.com)
  • The curing reactions of epoxies are exothermic and cure times and temperatures are determined by the heat transfer rate from the mold to the part and the scorch temperature of the epoxy. (justia.com)
  • The two compounds are mixed with a spatula and applied to the bonding surfaces and then cured either at room temperature or at elevated temperature, depending on the application. (justia.com)
  • Epoxy hardeners which cure rapidly at low temperature develop higher bond strength due to lower shrinkage stresses and permit higher production rates with lower energy expenditure. (justia.com)
  • An epoxy material suitable for no-flow underfilling processes with high glass transition temperature can be obtained by curing a solvent free formulation containing an epoxy resin, an organic carboxylic acid anhydride hardener, a curing accelerator, a fluxing agent, a viscosity controlling agent, a coupling. (google.com.au)
  • Some cases of dermatitis had resulted in the past from skin contact with high temperature cure epoxy resin and epoxy glue used in rod building. (cdc.gov)
  • Such versatility in formulating effective encapsulants and potting compounds leads to a range of questions, and the most commonly asked are "What about silicone-based potting compounds? (epicresins.com)
  • 3M™ Scotch-Weld™ Epoxy Potting Compound DP270 is low viscosity for easy dispensing and potting. (3m.com)
  • To protect your important electrical appliances and devices from impact, heat, shock, moisture, chemicals and more, there is one product that will do the trick: Epoxy Encapsulating and Potting Compound from MG Chemicals. (electriduct.com)
  • if you only wish to protect your electronics and not cover them in color, you can choose the clear version of MG Chemicals Epoxy Encapsulating and Potting Compound. (electriduct.com)
  • Potting compounds are a general-purpose types of sealant that can offer environmental, mechanical and physical protection to circuit boards and electronic assemblies. (rs-online.com)
  • Used in electronics, potting is a process of filling a complete electronic assembly with a solid or gelatinous compound. (rs-online.com)
  • The potting compound, once applied, cured and hardened encases your electronics in a solid mass providing a barrier which provides protection from moisture, vibration, thermal or physical shock and general contamination. (rs-online.com)
  • Urethane Potting Compounds - Urethane potting compounds generally have better flexibility, elongation, and abrasion resistance. (rs-online.com)
  • Silicone Potting Compounds - Silicone potting compounds and encapsulating materials are also soft, flexible, and have better elongation. (rs-online.com)
  • Specially formulated silicone potting compounds can operate at below -100°C and most silicone materials can handle 200°C temperatures. (rs-online.com)
  • Acrylic Potting Compounds - Acrylic potting compounds are UV and heat hardening materials. (rs-online.com)
  • We supply versatile potting compounds designed to protect sensitive electronics and PCB's from a variety of environmental and chemical stresses. (epicresins.com)
  • Our selection of low cost epoxy and polyurethane formulations is unmatched, giving OEM's the ability to choose the perfect potting resin for their needs, regardless of the application. (epicresins.com)
  • The number of potting compound formulations on the market is as varied as their potential applications. (epicresins.com)
  • While silicone potting compounds have some advantages, polyurethanes tend to work better for many applications . (epicresins.com)
  • The main advantage of silicone potting compounds is the material's elevated thermal resistance (over 160°C) while offering a soft polymer. (epicresins.com)
  • Epic S7475 is a two-component polyurethane compound for potting electronic control modules (ECM's). (epicresins.com)
  • Epic S7281 is a two-component aliphatic polyurethane potting compound designed with a fast cure and convenient 1:1 mix ratio by volume. (epicresins.com)
  • Epic S7325 is a two-component polyurethane compound specifically designed for potting/casting applications that require low hardness, convenient volumetric mix ratio and short working times. (epicresins.com)
  • With a wide variety of characteristics our resin potting compounds will protect sensitive electronics and PCBs in a variety of systems and environments. (epicresins.com)
  • Epic S7142-01 is a two component polyurethane potting compound designed for the manufacture of ballast transformers. (epicresins.com)
  • Between our extensive potting compound line and our flexible formulation process, you're sure to get the exact product you need. (epicresins.com)
  • What is Epoxy Resin Potting Compound? (rs-online.com)
  • How do you Apply Potting Compound? (rs-online.com)
  • We are a resource for potting and encapsulating electronic and electrical devices with epoxy potting compounds, polyurethane potting compounds and other types of potting compounds. (pottingsolutions.com)
  • part design for with epoxy and polyurethane, some potting compounds, equipment and accessories used in the potting and encapsulation process. (pottingsolutions.com)
  • Polyurethane Potting Compound is environmentally friendly. (thomasnet.com)
  • Potting and Encapsulating Compound is FDA compliant. (thomasnet.com)
  • Silicone Potting Compound features lightweight formulation. (thomasnet.com)
  • Epoxy Potting Compound resists high temperatures. (thomasnet.com)
  • Master Bond's EP29LP-1 potting compound offers long pot life, good compound flow, and easy set up. (newequipment.com)
  • This low exotherm, electrical insulating potting epoxy exhibits high shear bond strength and excellent resistance to thermal shock and chemicals. (newequipment.com)
  • EP37-3FLFAO has low viscosity with excellent flow characteristics making it ideal as a thermally conductive potting epoxy. (masterbond.com)
  • Description: Easily pourable, thermally conductive, shock resistant potting compounds that are ideally suited for low and high production applications. (globalspec.com)
  • Epic S7253 is a series of two component products, UL 94V-0 recognized polyurethane compounds designed for electronic applications requiring encapsulation. (epicresins.com)
  • Epoxy Resin Hardener provider! (epoxyresin-hardener.com)
  • The present invention relates generally to the field of epoxy hardeners and in particular to new and useful groupings of epoxy hardener compositions which rapidly cure an epoxy over a range of temperatures. (justia.com)
  • Epoxy/hardener systems which cure at low temperatures and which develop low exotherm as a result of chemical factors are very advantageous since they can be cured faster and will result in higher production rates. (justia.com)
  • For hand application, the epoxy resin and hardener are usually supplied in two separate syringes which have a common plunger. (justia.com)
  • Pressing the plunger releases the correct proportions of epoxy and hardener. (justia.com)
  • A prepolymer mixture of epoxy, hardener, and other desired components is applied as a coating onto a polymer film substrate, rolled up and stored in a freezer to stop the chemical reactions between components. (justia.com)
  • TRA-CAST 3143 has low viscosity, long pot life, and is certified to UL 94 V-O. Epoxy system has low coefficient of thermal expansion and excellent wetting and adhesion to most electronic and aerospace-industry materials, including metals, glass products, ceramics, industrial laminates and many rigid plastics. (thomasnet.com)
  • CHIPSHIELD 1455HD low-viscosity UV curable epoxy is designed to perform as chip coating both in smart cards and as a protective glob on PC surface-mounted chips. (thomasnet.com)
  • LOCTITE® 675 is a green, very low viscosity, high strength, slow curing methacrylate retaining compound . (globalspec.com)
  • The uniqueness of EP37-3FLFAO lies in the fact that this thermally conductive system retains a high level of flexibility while having the desirable physical characteristics inherent in epoxies. (masterbond.com)
  • Once cured, the epoxy exhibits striking resistance to shock, vibration, impact and thermal cycling. (masterbond.com)
  • Epoxies are formulated as liquid reactive polymers that undergo a chemical reaction when mixed and then cure to form a solid plastic material. (3m.com)
  • Carbon dioxide, and carbon monoxide, phenolic compounds. (cableorganizer.com)
  • Concretely, it is a composition for forming an underlayer without use of crosslinking reaction by an strong acid catalyst, and an underlayer coating forming composition containing a component having an epoxy group (a polymer, a compound) and a component having a phenolic hydroxyl group, a carboxyl group, a protected carboxyl group or an acid anhydride structure (a polymer, a compound). (patentgenius.com)
  • We evaluated exposures to volatile organic compounds including 2-butoxyethanol, isopropyl alcohol, pentane, toluene, and n-butyl glycidyl ether. (cdc.gov)
  • We found low levels of volatile organic compounds and carbon monoxide. (cdc.gov)
  • In this study, the interfacial and mechanical properties of cellulose nanocrystals (CNC) coated glass fiber/epoxy composites were investigated as a function of the CNC content on the surface of glass fibers (GF). (usda.gov)
  • A scalable technique was introduced to produce high volume lightweight composites using sheet molding compound (SMC) manufacturing method by replacing 10 wt% glass fibers (GF) with a small amount of cellulose nanocrystals (CNC). (usda.gov)
  • The focus of this study is to (i) understand the effect of the fiber type and content on the mechanical properties of sheetmolding compounds composites and (ii) investigate possible lightweight alternatives to glass fibers-sheet molding compound composites. (usda.gov)
  • Glass fiber and basalt fibers are used to make sheet-molding compound composites and the mechanical performance. (usda.gov)
  • Polymer Composites with Maleimide Compounds. (routledge.com)
  • The epoxy resin compound mainly includes an epoxy resin, a curing agent, and an inorganic filler. (patentsencyclopedia.com)
  • Description: Apiezon® sealing compound Q remains firm for temperatures up to 30°C but is sufficiently pliable to permit easy moulding into position. (globalspec.com)
  • Description: Apiezon Sealing Compound Q is a versatile, temporary vacuum sealing medium. (globalspec.com)
  • Allyl compounds, aldehydes, epoxides and peroxides / this publication represents the views and expert opinions of an IARC Working Group on the Evaluation of the Carcinogenic Risk of Chemicals to Humans which met in Lyon, 19-26 June 1984. (who.int)
  • b) a second component comprising at least one amine compound with one or more primary and/or secondary amino groups, said amine compound having a molecular weight of less than 450 g/mol. (google.com)
  • It is 100% solids epoxy with no solvent for zero VOCs. (thomasnet.com)
  • EMC (Epoxy Molding Compound) is a semi-conductor encapsulant which is used in most products where semi-conductors are applied, such as general home appliances including mobile phones, refrigerators and TVs, industrial devices and vehicles. (reportsnreports.com)
  • Liquid Epoxy Encapsulant provides fast capillary flow. (thomasnet.com)
  • This high-purity, low-stress liquid epoxy encapsulant is designed for use in fine pitch. (thomasnet.com)
  • ER7415 is a single part heat cure epoxy designed for high bonding strength under high heat conditions with controlled flow characteristics. (eis-inc.com)
  • REPOX-MIX is a three component 100 solids epoxy resin base compound. (szklarz-manczak.pl)
  • We use 100 solids epoxy that is self-leveling and has a tough flexible consistency and high elasticity. (szklarz-manczak.pl)
  • Formulations can be created to make epoxy for plastic flexible or epoxy for metal rigid, epoxy resin transparent or opaque, quick setting or slow setting. (3m.com)
  • The invention relates to a plasticizer composition containing at least one polymer dicarboxylic acid ester, to molding compounds containing a thermoplastic. (patents.com)
  • The epoxy resin is used on a printed circuit board as an insulating material, so that a substrate having a high heat radiation property is provided. (patentsencyclopedia.com)
  • Epoxy Resin Compound features high thermal conductivity. (thomasnet.com)
  • High Speed compound air bubble making machine film width 2000mm bubble size china factroy low price Model No. (burrillandco.com)
  • High lignin-containing cellulose nanocrystals (HLCNCs) were successfully isolated from hydrothermally treated aspen fibers and freeze-dried and compounded with poly (lactic acid) (PLA) by extrusion and injection molding. (usda.gov)
  • Description: Green, high strength, slow curing methacrylate retaining compound for close fitting press fit and loose fitting slip fit applications. (globalspec.com)
  • Description: Retaining Compound - high strength. (globalspec.com)
  • The clear epoxy leaves your PC Board open to viewing but still protected from harmful moisture, impact, dirt, debris, chemicals and anything else that might damage your electrical components. (cableorganizer.com)
  • Interstate Products Concrete Epoxy Patch Kits for Concrete Floor or Outdoor Repair are as Easy as 1 2 3. (szklarz-manczak.pl)
  • GS Polymers, Inc. is proud to introduce their new product line of polyurethane and epoxy products. (thomasnet.com)
  • Epoxy Board is designed for use at temperatures to 250°F. (thomasnet.com)
  • As operating temperatures continue to increase, the trend in automotive manufacturing is to upgrade from thermoplastics to higher performing thermoset epoxy materials. (solepoxy.com)
  • Quantitative determination of epoxy acids, keto acids and hydroxy acids formed in fats and oils at frying temperatures. (biomedsearch.com)
  • Our granulated, free-flowing thermo-setting molding compounds are plastics that chemically cross-link at elevated temperatures. (raschig.de)
  • Made of a form of nylon, the 832B and 832C Epoxies are highly impact resistant and fitting for explosion proof components. (electriduct.com)
  • Epoxy cures in 8 hours @ 25°C, 1 hour @ 65°C, and 15 minutes @ 100°C. It is available as pre-mixed and frozen syringes or in two. (thomasnet.com)
  • The invention relates to novel aqueous coating compositions containing epoxy urethane (glycidyl carbamate) functional resin. (patentsencyclopedia.com)
  • An aqueous coating composition comprises a polyfunctional oligomer having at least two epoxy urethane functional groups and a polyalkylene oxide chain, an optional surfactant, and water. (patentsencyclopedia.com)
  • The invention provides a method for making aqueous coating compositions containing epoxy urethane functional resin as well. (patentsencyclopedia.com)
  • Water-dispersible epoxy urethane compounds of the aqueous coating compositions are also provided. (patentsencyclopedia.com)
  • Epoxy Compound Powder Coating Feature Excellent UV resistant and weather proof performance. (himfr.com)
  • Compound Drum Coating Machine For NPK Fertilizer Production Line 1. (burrillandco.com)
  • 12x6 Inch Yellow Glass Fiber Sheet GRP Epoxy. (myshopping.com.au)
  • The long glass fiber compounds are based on various resin systems including nylon and polypropylene. (thomasnet.com)
  • Molding compounds must have excellent electrical properties and depending on their molding process can use a standard transfer mold compound or an injection mold epoxy. (solepoxy.com)
  • Description: Sylvin 8859 94 Natural Is A Compound Formulated For Flexible T-Trim Molding Applications. (globalspec.com)