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)

Triplex heterocyclic compounds". ChemAnalitica.com. 1 April 2009. Retrieved 21 September 2009. Collins J. L. "Epoxy compounds ... The epoxy cycle of ethylene oxide is an almost regular triangle with bond angles of about 60° and a significant angular strain ... Ethylene oxide is an organic compound with the formula C2H4O. It is a cyclic ether and the simplest epoxide: a three-membered ... At the first stage, the catalyst (MXm) is initiated by alkyl-or acylhalogen or by compounds with active hydrogen atoms, usually ...
"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. ... Another method puts the part or assembly in a mold, and potting compound is poured in it, and after curing, the mold is not ... 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 ...
Flick, Ernest W. (1993). Epoxy resins, curing agents, compounds, and modifiers : an industrial guide. Park Ridge, NJ. ISBN 978- ... Aryldiazonium couple with electron-rich aromatic compounds such as a phenol to form azo compounds. Such reactions are widely ... Compounds with a nitrogen atom attached to a carbonyl group, thus having the structure R−CO−NR′R″, are called amides and have ... As azo-compounds are highly coloured, they are widely used in dyeing industries, such as: Methyl orange Direct brown 138 Sunset ...
The main use of o-CGE is to reduce the viscosity of epoxy resins. These reduced viscosity resins may then be used to formulate ... o-Cresyl glycidyl ether (ortho-cresyl glycidyl ether, o-CGE) is a liquid aromatic organic chemical compound and chemically a ... "Dow Epoxy Resins" (PDF). Hexion HELOXY™ 62 , Miller-Stephenson RoyOxy® RAD 100 O-cresyl Glycidyl Ether PARCHEM o-CGE Evonik ... Chain extenders (f = 2) and cross linkers (f ≥ 3) are low molecular weight di or tri-functional epoxy diluents. The use of the ...
An epoxy resin system generally consists of a curing agent and an epoxy resin. Both the curing agent and the epoxy resin can be ... Volatile organic compound) discharged into the atmosphere; c) cost; d) political factors i.e. security of supply. All these ... Solid epoxy resin (molecular weight >1000) dispersions are available and consist of an epoxy resin dispersed in water sometimes ... Waterborne epoxy resins may be modified with acrylate and then further modified with side chains having many fluorine atoms on ...
... is an aromatic organic chemical in the glycidyl compound family. It is used to reduce the viscosity of epoxy ... Panda, Dr H (2019). Epoxy Resins Technology Handbook (Manufacturing Process, Synthesis, Epoxy Resin Adhesives and Epoxy ... One of the quality control tests would involve measuring the Epoxy value by determination of the epoxy equivalent weight in ... The use of the diluent in epoxy systems affects the mechanical properties and microstructure of epoxy resins. The kinetics of ...
"Epoxy Compounds: Aromatic Diglycidyl Ethers, Polyglycidyl Ethers, Glycidyl Esters, and Miscellaneous Epoxy Compounds", Patty's ... "Dow Epoxy Resins" (PDF). Hexion difunctional epoxy diluents Denacol epoxy diluent range Cargill Reactive diluents (Articles ... As an Epoxy modifier it is classed as an epoxy reactive diluent.The use of the diluent does effect mechanical properties and ... One of the quality control tests would involve measuring the Epoxy value by determination of the epoxy equivalent weight. A key ...
It may be defined as the number of milligrams of potassium hydroxide (KOH) equivalent to one gram of epoxy hardener resin. The ... Specifically, it is usually used to measure the amine content of amine functional compounds. ... Epoxy resin technology. Paul F. Bruins, Polytechnic Institute of Brooklyn. New York: Interscience Publishers. 1968. ISBN 0-470- ... 11390-1. OCLC 182890.{{cite book}}: CS1 maint: others (link) Flick, Ernest W. (1993). Epoxy resins, curing agents, compounds, ...
"Epoxy Compounds: Aromatic Diglycidyl Ethers, Polyglycidyl Ethers, Glycidyl Esters, and Miscellaneous Epoxy Compounds", Patty's ... One of the quality control tests would involve measuring the epoxy value by determination of the epoxy equivalent weight. The ... It produces epoxy coatings with high impact resistance. The use of the diluent does effect mechanical properties and ... Epoxide Glycidol Epoxy resin technology. Paul F. Bruins, Polytechnic Institute of Brooklyn. New York: Interscience Publishers. ...
"Epoxy Compounds: Aromatic Diglycidyl Ethers, Polyglycidyl Ethers, Glycidyl Esters, and Miscellaneous Epoxy Compounds", Patty's ... One of the quality control tests would involve measuring the Epoxy value by determination of the epoxy equivalent weight. The ... "Phenolic epoxy system", published 2021-11-02, assigned to Hexion Vad LLC Booth, Hubert J. (1973-07-26). "Synthesis of Epoxy ... "Dow Epoxy Resins" (PDF). Parchem RDGE Technical Data Sheet Safety Data Sheet (CS1 errors: missing periodical, Articles with ...
The use of the diluent does effect mechanical properties and microstructure of epoxy resins. It produces epoxy coatings with ... compounds, and modifiers : an industrial guide. Park Ridge, NJ. ISBN 978-0-8155-1708-5. OCLC 915134542. Lee, Henry (1967). ... "Dow Epoxy Resins" (PDF). Ash, Michael (2007). Handbook of Fillers, Extenders, and Diluents. Synapse Info Resources. p. 64. ISBN ... The CAS number is 68460-21-9.[dubious - discuss] A key use is as a modifier for epoxy resins as a reactive diluent. ...
... compounds, and modifiers : an industrial guide. Park Ridge, NJ. ISBN 978-0-8155-1708-5. OCLC 915134542. Lee, Henry (1967). ... Fusion bonded epoxy coating, also known as fusion-bond epoxy powder coating and commonly referred to as FBE coating, is an ... "Fusion Bonded Epoxy Coatings companies". Xpert Environmental. November 2021.{{cite web}}: CS1 maint: url-status (link) Epoxy ... Curing agents react either with the epoxy ring or with the hydroxyl groups, along the epoxy molecular chain. Various types of ...
"Dow Epoxy Resins" (PDF). Hexion Poly-functional Modifiers Denacol epoxy diluent range Cargill Reactive diluents (Articles ... compounds, and modifiers : an industrial guide. Park Ridge, NJ. ISBN 978-0-8155-1708-5. OCLC 915134542. Lee, Henry (1967). ... The use of the diluent does effect mechanical properties and microstructure of epoxy resins. It produces epoxy coatings with ... Epoxy resin technology. Paul F. Bruins, Polytechnic Institute of Brooklyn. New York: Interscience Publishers. 1968. ISBN 0-470- ...
The species has also been used to synthesize other chemical compounds. The toxicology has been studied. Epoxide Glycidol Epoxy ... "Occupational dermatoses from exposure to epoxy resin compounds in a ski factory". Contact Dermatitis. 34 (6): 390-396. doi: ... One of the quality control tests would involve measuring the epoxy value by determination of the epoxy equivalent weight. A key ... "Dow Epoxy Resins" (PDF). "Diethylene glycol diglycidyl ether". pubchem.ncbi.nlm.nih.gov. Retrieved 27 May 2022. Jagtap, Ameya ...
As an Epoxy modifier it is classed as an epoxy Reactive diluent. It is also used to synthesize other molecules. The use of the ... compounds, and modifiers : an industrial guide. Park Ridge, NJ. ISBN 978-0-8155-1708-5. OCLC 915134542. Lee, Henry (1967). ... Epoxy resin technology. Paul F. Bruins, Polytechnic Institute of Brooklyn. New York: Interscience Publishers. 1968. ISBN 0-470- ... It is principally used to reduce the viscosity of epoxy resin systems. n-Butyl alcohol and epichlorohydrin react in a ...
Since a true epoxy begins to yellow at the age of 1 year acrylic polyurethane compound is used in the topcoat. This resin is ... Ceramic fixtures are being more commonly glazed with 2 part epoxy compounds. The first component is a clear or opaque resin ... The proper procedure requires that the nonporous fixture be sand blasted to create a rough surface for the epoxy primer to ...
"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 ...
"Epoxy Compounds: Aromatic Diglycidyl Ethers, Polyglycidyl Ethers, Glycidyl Esters, and Miscellaneous Epoxy Compounds", Patty's ... 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. BADGE is highly reactive ... From the 1990s onward, concern has been raised over the use of BADGE-based epoxy resins in the lining of some tin cans for ...
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 ... Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Chemical articles with ...
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 12S,13R-epoxy-9(Z)-octadecaenoic and 12R,13S-epoxy-9(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 ... 10R-epoxy-12(Z)-octadecaenoic and 9R,10S-epoxy-12(Z)-octadecaenoic acid optical isomers; this set of optical isomers is also ...
... compounds, and modifiers : an industrial guide. Park Ridge, NJ. ISBN 978-0-8155-1708-5. OCLC 915134542. Lee, Henry (1967). ... The epoxy value is defined as the number of moles of epoxy group per 100g resin. So as an example using an epoxy resin with ... Epoxy value derives from the Epoxy equivalent weight (EEW) or Weight Per Epoxide (WPE) and is a measure of the epoxy content of ... The epoxy equivalent weight (EEW) maybe defined as: the number of grams of epoxy resin required to give 1 mole of epoxy groups ...
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 ...
One persistent problem is that red phosphorus in epoxy molding compounds induces elevated leakage current in semiconductor ... 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 ...
... 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 ...
"Epoxy Compounds: Aromatic Diglycidyl Ethers, Polyglycidyl Ethers, Glycidyl Esters, and Miscellaneous Epoxy Compounds", Patty's ... "Dow Epoxy Resins" (PDF). Hexion difunctional epoxy diluents Denacol epoxy diluent range Cargill Reactive diluents AALChem DE ... One of the quality control tests would involve measuring the Epoxy value by determination of the epoxy equivalent weight. As ... It is an industrial chemical and a key use is in the reduction of viscosity of epoxy resin systems functioning as a reactive ...
Flick, Ernest W. (1993). Epoxy resins, curing agents, compounds, and modifiers : an industrial guide. Park Ridge, NJ. ISBN 978- ... One of the quality control tests would involve measuring the epoxy value by determination of the epoxy equivalent weight. A ... It produces epoxy coatings with high impact resistance. Polymer systems with shape memory may also be produced with this ... A key use is acting as a modifier for epoxy resins as a reactive diluent that adds flexibility and improved mechanical ...
"Epoxy Compounds: Aromatic Diglycidyl Ethers, Polyglycidyl Ethers, Glycidyl Esters, and Miscellaneous Epoxy Compounds", Patty's ... A key use is modifying the viscosity and properties of epoxy resins. As an Epoxy modifier it is classed as an epoxy reactive ... "Dow Epoxy Resins" (PDF). Hexion difunctional epoxy diluents Denacol epoxy diluent range Aalchem NPGDGE Cargill Reactive ... One of the quality control tests would involve measuring the Epoxy value by determination of the epoxy equivalent weight. ...
The compound is a white solid. 1,2,4,5-Tetrabromobenzene is an important metabolite of the flame retardant hexabromobenzene. ... 4-epoxy-1,4-dihydronaphthalene (6,7-dibromonaphthalene-1,4-endoxide) in 70% yield. When 2,5-dialkylfurans (e.g. 2,5- (di-n- ... 1,2,4,5-Tetrabromobenzene is an organobromine compound with the formula C6H2Br4. It is one of three isomers of ... Due to their pronounced π-conjugation such compounds could be potentially applied as optical brighteners, OLED materials or ...
The main reason behind this is the relative high cost of prepreg fibers as well as the compounds used in molds. Example of such ... It is mainly used resins based on epoxy resin. Vinyl ester-based prepregs are also available. Since vinyl ester resins must be ... Pre-preg is a composite material made from "pre-impregnated" fibers and a partially cured polymer matrix, such as epoxy or ... pre-accelerated with amine accelerator or cobalt, their processing time at room temperature is shorter than with epoxy-based ...
5-epoxy-3,6-d-morphinan. Thodey et al., 2014 introduces a microbial compound manufacturing system for compounds including ... It was last manufactured in 1987, but can be compounded. This combination is essentially an oxycodone analogue of the morphine- ... Expanded expressions for the compound oxycodone in the academic literature include "dihydrohydroxycodeinone", "Eucodal", " ... the unchanged parent compound remains the major contributor to the overall analgesic effect of oxycodone. In contrast to ...
It can also be used as a hardener for certain epoxy resins. ADH is a symmetrical molecule with a C4 backbone and the reactive ... Organic compound stubs, Hydrazides). ...
The first product in the AAI agreement was to be an autonomous slowed rotor/compound (SR/C) aircraft based on the Carter ... Materials used include glass fiber, aluminum, titanium, and steel, as well as autoclaved carbon/epoxy prepreg with aramid ... Compound Concept Aviation Week, 28 February 2011. Retrieved 1 March 2012. Paper edition or paywall Jane's All the World's ... The purpose of the Slowed Rotor/Compound aircraft is to enhance the flight envelope compared to fixed-wing aircraft, ...
... s in organic chemistry are a class of organic compounds with the formula RNHNH2 where R is acyl (R'CO-), sulfonyl ( ... "Die Synthese von Acetylen-carbonyl-Verbindungen durch Fragmentierung von α-β-Epoxy-ketonen mit p-Toluolsulfonylhydrazin. ...
Balsam was phased out as an optical adhesive during World War II, in favour of polyester, epoxy, and urethane-based adhesives. ... Balm of Gilead, a healing compound made from the resinous gum of Commiphora gileadensis. "The Bonding of Optical Elements - ... In modern optical manufacturing, UV-cured epoxies are often used to bond lens elements. Canada balsam was also commonly used ...
... is the parent compound in a family of naturally occurring organic compounds known as the angular furanocoumarins. ... which is used to create vaginol or vaginidiol with an isopropyl Grignard reagent and commercially available epoxy aldehydes. ... The compound can be isolated from natural sources, albeit this affords a low yield due to the prevalence of other ... There were multiple studies on the toxicity of angelicin one of which showed that the compound elicits chromosomal damage in ...
It is used in the adhesive industry as a curing agent for epoxy resins. Two tautomeric forms exist, differing in the ... A variety of useful compounds are produced from 2-cyanoguanidine, guanidines and melamine. For example, acetoguanamine and ... Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Articles without KEGG source ...
Regardless, these organolithium compounds are reactive toward various electrophiles. Although nitrile anions are functionally ... The cyclization of ω-epoxy-1-nitriles provides an interesting example of how stereoelectronic factors may override steric ... Formation of cyanohydrins from carbonyl compounds renders the former carbonyl carbon acidic. After protection of the hydroxyl ...
Recipes for homemade fungicide solutions, wood hardeners and penetrating epoxies have been reported on the web in addition to ... Relative toxicities of chemicals Boron-based compounds are toxic to fungi, but their effects on mammals are minimal. However, ...
6-epoxy-8Z,11Z,14Z,17Z-eicosatetraenoic acid), 8,9-EEQ (i.e. 8,9-epoxy-5Z,11Z,14Z,17Z-eicosatetraenoic acid), 11,12-EEQ (i.e. ... are involved in the metabolism of xenobiotics as well as endogenously-formed compounds; since many of these same compounds also ... 11,12-epoxy-5Z,8Z,14Z,17Z-eicosatetraenoic acid), 14,15-EEQ (i.e. 14,15-epoxy-5Z,8Z,11Z,17Z-eicosatetraenoic acid, and 17,18- ... In cells, EEQs are rapidly metabolized by the same enzyme that similarly metabolizes other epoxy fatty acids including the EETs ...
... 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 ... These increase salinity and total dissolved solids, and phosphorus compounds may provide the limiting essential nutrient for ...
Mineral acids are used for epoxy resins to hydrolyze their ether bonds. Alkaline activators are usually based on sodium ... which often contain metal compounds. The most common sequestrants used in paint strippers are EDTA, tributyl phosphate, and ...
The inside of the can is coated with an epoxy coating, in an attempt to prevent food or beverage from coming into contact with ... Bisphenol-A (BPA) is a controversial chemical compound present in commercially available tin can plastic linings and ...
In addition to the y-lactone ring and the substituent on C-7, eplerenone has a 9α,11α-epoxy group. This group is believed to be ... Despite the nonsteroidal nature of finerenone which yields a different lipophilicity and polarity profile for this compound, ... non-steroidal mineralocorticoid receptor antagonists were done with high-throughput screening of millions of chemical compounds ...
... especially if made with paper and epoxy resin. Ebonol, a paper and phenolic resin compound sometimes used for fingerboards in ... Since the last quarter of the 20th century, phenolic resin and cellulose based compound materials have been used as an ...
Spiro compounds, Spirolactones, Steroidal antiandrogens, All stub articles, Steroid stubs, Cardiovascular system drug stubs). ... Eplerenone is the 9-11α-epoxy analogue of mexrenone. Canrenone Mexrenoate potassium Mexrenoic acid Potassium canrenoate ...
GOs are an abundance of functional groups such as hydroxyl, epoxy, and carboxyl on its basal surface and edges that can be also ... Research unlocks potential of super-compound, Phys.org, 22 October 2014, David Stacey Williams, Mike (October 21, 2015). " ... Its surface is covered with epoxy, hydroxyl, and carboxyl groups that interact with cations and anions. It is soluble in water ... researchers developed a prototype de-icing system that incorporated unzipped carbon nanotube graphene nanoribbons in an epoxy/ ...
Coating material (after curing) should have a thickness of 30-130 μm (0.0012-0.0051 in) when using acrylic resin, epoxy resin, ... "Qualification and Performance of Electrical Insulating Compound for Printed Wiring Assemblies" (PDF). Retrieved 2010-07-26. " ... epoxy, etc. Process, production and commercial issues will then enter the equation: How easily can the material be reworked ... abrasion resistance CTE closer to epoxy PCB substrate Higher Tg (Glass transition) Good dielectric properties Polyurethane Good ...
It is also called BADGE·2H2O in reference to it being the hydrolysed form of BADGE, which is used in the formation of epoxy ... 2,2-Bis[4(2,3-hydroxypropoxy)phenyl]propane (bis-HPPP) is an organic compound that is formed when the dental composite material ...
... can be used as a solvent and for the alkylation of CH-acidic compounds (e.g. phenols and carboxylic acids). ... diol spiro orthocarbonates derived from glycerol as anti-shrinkage additives for the cationic photopolymerization of epoxy ... Tetraethoxymethane is a chemical compound which is formally formed by complete ethylation of the hypothetical orthocarbonic ... Europäische Patentschrift EP 0881212 B1, Production method of aminobenzene compound, Erfinder: H. Hashimoto et al., Anmelder: ...
15S-epoxy-5Z,8Z,12E-eicosatrienoic acid [14,15-HXA3] and 13R-hydroxy-14S,15S-epoxy-5Z,8Z,11Z-eicosatrienoic acid [14,15-HXB3]) ... One or both of these compounds stimulates cells by binding with and activating two G protein-coupled receptors, GPR31 and the ... an epoxide intermediate that is attacked by a water molecule to form epoxy-hydrpoxy PUFA products. Eoxins stimulate vascular ...
... sheet molding compounds and bulk molding compounds; filament winding; wet lay-up lamination; repair compounds and protective ... Epoxy resin used as the matrix component in many fiber reinforced plastics such as glass-reinforced plastic and graphite- ... When compounded with fibers, thermosetting resins form fiber-reinforced polymer composites, which are used in the fabrication ... Epoxy novolac resins used for printed circuit boards, electrical encapsulation, adhesives and coatings for metal. Benzoxazines ...
Benzo[a]pyrene-7,8-dihydrodiol-9,10-epoxide is an organic compound with molecular formula C20H14O3. It is a metabolite and ... 10-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene in a fully Complementary DNA Duplex: Evidence for a Major Syn Conformation". ... Seager, S. L.; Slabaugh, M. R. (2013). "Properties and Uses of Aromatic Compounds". Organic and Biochemistry for Today (8th ed ... The carcinogenic properties of tobacco smoking are attributed in part to this compound binding and inactivating the tumor ...
This examination was carried out by attaching two acicular crystals to the surface of a disk with epoxy and then examining them ... These crystals produced an X-ray powder diffraction pattern that did not match any XRD data listed for inorganic compounds. The ...
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. While crude forms of pad printing have existed for centuries, it was ...
Burned by exposure to light parts reproduce patterns drawn on a transparent photolith film on a pre-sensitized plate (epoxy or ... Lightbox Azo compound Blueprint Ozalid Heliographic copier Thermal copier Verifax copier Diatype (machine) Cryder, George R. ( ... Bakelite). This pre-sensitized plate comprises an insulating plate (epoxy resin or bakelite), adhered with a layer of copper, ...
"Libya live blog: Coalition confirms strike on Gadhafi compound". CNN. 20 March 2011. Archived from the original on 19 April ... The leading-edge flaps, stabilators, and ventral fins make use of bonded aluminum honeycomb structures and graphite epoxy ...
Clear Potting Compound. Our clear amber epoxy potting compound is the perfect product for encapsulating electronic circuits. ... Potting Compounds. Featured Products. 300/11 Clear Potting and Encapsulation Epoxy Resin - 2 Gallon Kit. $302.00. View Product ... Clear epoxy potting compound provides mechanical reinforcement to protect sensitive, fragile components from exposure to ... 300/11 Clear Potting and Encapsulation Epoxy Resin - 2 Gallon Kit. $302.00. Estimated delivery between 2023/06/13 - 2023/06/15 ...
Epoxy installation, epoxy mixing, floor coating installation, resinous flooring application, epoxy application, coating ... Home › Epoxy Training Videos › Repair Compound Epoxy Training Videos - Repair Compound. Ceramic Repair Compound Training Video ...
Allyl compounds, aldehydes, epoxides and peroxides / this publication represents the views and expert opinions of an IARC ... by IARC Working Group on the Evaluation of the Carcinogenic Risk of Chemicals to Humans: Allyl compounds Aldehydes, Epoxides ...
Epoxy Putty General Purpose offered by Tuff Bond Industrial Adhesives Pvt. Ltd., Mumbai, Maharashtra. ... M Seal Regular Eproxy Compound. Our product range includes a wide range of epoxy putty general purpose. ... Manufacturer of M Seal Regular Eproxy Compound - ... Looking for M Seal Regular Eproxy Compound ?. Thank you. Your ...
A non-sudsing powdered Trisodium Phosphate compound that is formulated for heavy duty cleaning. Preferred by painting and ... Industrial Coating Savogran 10622 TSP Surface Cleaner Compound, 4.5 lbs [LAN10622] - ... Savogran 10622 TSP Surface Cleaner Compound, 4.5 lbs. Current Reviews: 0 , Add Your Review ... Due to supply shortages throughout the entire chemical industry; we have limited supplies of various epoxy, urethane and color ...
high current, high temperature operating devices, used primarily in automotive applications, Strength after Thermally conductive > 2.7W/mK, Tg must be higher than 135 C, CTE must be less than 20 ppm
Epoxy consolidant and epoxy filler, both are multiple part compounds. Purchase by the gallon unless a large amount of epoxying ... When the consolidant has cured, fill the voids in the surface with epoxy filler (wood-epoxy putty): *Mix the two part epoxy ... Epoxy repair may NOT be appropriate if: *the piece is a structural member. Epoxy has adequate compression strength, but is not ... Epoxy repair may be appropriate if: *the piece to be repaired is historically significant. Epoxy repair makes it possible to ...
3M™ Scotch-Weld™ Epoxy Adhesive 2214, Hi-Temp New Formula, Gray, 6 fl oz Cartridge, 6 each/Case ... 3M™ Scotch-Weld™ Epoxy Adhesive 2214, Hi-Temp, Gray, 6 fl oz Cartridge, 6 Each/Case ... 3M™ Scotch-Weld™ Epoxy Adhesive 2214, Non-Metallic Filled, Cream, 6 oz Cartridge, 4 Each/Case ... 3M™ Scotch-Weld™ Epoxy Adhesive 2214, Hi-Temp New Formula, Gray, 5 Gallon (Pail), Drum ...
Insulative epoxy compounds used by Nasa. The potting compound (link here) looks like it will do the job for you. That compound ...
Industrial compounds (such as metals, epoxy and acrylic resins, or rubber additives) ...
Epoxy-compounds; Sporting-and-athletic-goods; Fiberglass-industry; Author Keywords: Sporting and athletic goods - fishing ... Some cases of dermatitis had resulted in the past from skin contact with high temperature cure epoxy resin and epoxy glue used ... tackle; acetone; 2 butoxyethanol; N-butyl alcohol; cyclohexanol; epoxy resins; fiberglass; graphite; petroleum distillates; ...
Epoxy Compounds [‎1]‎. Equatorial Guinea [‎101]‎. Equipment and Supplies [‎1293]‎. Equipment and Supplies, Hospital [‎47]‎. ...
Region-4; Noise; Noise exposure; Industrial processes; Injection safety; Epoxy compounds; Volatile organic compounds; VOCs; ... Odors produced while mixing and curing epoxy-coated parts were not controlled. We recommended the company start a hearing ... Employees were concerned about odors in the injection molding and epoxy injection areas. There was also concern about high ... We found low levels of volatile organic compounds and carbon monoxide. These levels were well below occupational exposure ...
Categories: Epoxy Compounds Image Types: Photo, Illustrations, Video, Color, Black&White, PublicDomain, CopyrightRestricted 1 ...
Epoxy molding compound (EMC) is widely used for encapsulating automotive electronics. Among all of the components of an ...
... in addition to the epoxy resin, (1) an epoxy adduct obtainable by reacting an epoxy compound having one, two or more epoxy ... The latent curing agent is obtained by reacting a polyfunctional epoxy compound, with an imidazole compound, an acidic compound ... an epoxy compound-dialkylamine adduct as a latent hardener. The epoxy resin is one having two or more epoxy groups per molecule ... ii.6) D4 taught to use acidic compounds for the surface treatment of amine epoxy adduct. No effect had been shown by the ...
This product is one part of a two-part epoxy compound. Make sure that you are ordering both Resin AND Hardener. ... Epoxy & Fiberglass. Composite Supplies. MAS Epoxies. WEST SYSTEM Epoxy. Fasteners & Hardware. Bronze & Brass Hardware. Rigging ...
You can go for water-based, solvent-free, and UV sensitive; or opt for traditional epoxy resins that have been around for ... Everyone has their own preferences when it comes to building with epoxy. ... In some cases, a resin is made from just one epoxy compound (e.g., phenol-formaldehyde). There are many different epoxy resins ... Traditional epoxies can be more expensive than epoxy resins.. When should I use Traditional Epoxy?. * Wood to Wood: Traditional ...
You have to fair the area with a fairing compound. Best bet for a area that size is a epoxy fairing compound. Gives you way ... i did spread some epoxy/aerosil mix that i had extra from another project into the thickest weave parts as filler, will sand ... It will be difficult for the gelcoat finish to adhere to epoxy. ... more working time then a polyester compound and holds up better ...
Low-density epoxy compound for levelling off internal and external decks on ships ... Low-density epoxy base material for levelling off internal surfaces> Low-density epoxy base material for levelling off internal ... Low-density epoxy compound for levelling off internal and external decks on… ...
Adhesives; Epoxies; Die Attach Compounds; Under fill Materials; Conductive & Non-Conductive. *. Bonding; Interconnect Materials ...
Among them, high-performance epoxy adhesives, retaining compounds, gap-filling adhesives, threadlockers (medium and high ...
Look for the telltale bulge or pod in a speaker cable - dissect that and youll find among the epoxy potting compound some ...
Turquoise consists of two primary compounds - hydrated phosphates of copper and aluminum. In addition, most specimens of ... Epoxy Resin Plaques- How To Pour Epoxy Resin on Wood Plaques. 10th December 2009 ... After a few months and a few gallons of epoxy resin me and my wife finally figured out how to get high qaulity work on wood ... Get Hooked To The Idea Of Epoxy Resin Bar Tops And Table Tops 09th June 2011 ...
Over the years we learned that the simplest way to make field read electronics is to incase them in epoxy potting compound. ... This is the exact same epoxy potting compound used on every single Atlas Scientific circuit. ... Atlas Scientific has worked with many different types of potting compounds over the years. All potting compounds are NOT the ... that is needed to read electrochemical signals can easy be rendered useless by using most types of epoxy potting compound. ...
It is used as a solvent for lacquers, varnishes, enamels, and epoxy resins. It is also used in some ink and spot remover ... It is also used in liquid soaps, cosmetics, industrial and household cleaners, and dry-cleaning compounds. 2-Butoxyethanol ... It is also used in liquid soaps, cosmetics, industrial and household cleaners, and dry-cleaning compounds. 2-Butoxyethanol ... It is used as a solvent for lacquers, varnishes, enamels, and epoxy resins. It is also used in some ink and spot remover ...
Duracoat is a Two Part compound that is Epoxy based. This has its pros and cons. The downside that we have found to Duracoat ...
Then, the IL modified-silica was compounded with epoxy prepolymer, affecting the rheological properties of the uncured ... The epoxy-silica hybrids synthesized in the presence of ILs proved to be efficient as high performance SMP [9], which work with ... Bauer, B.J.; Liu, D.-W.; Jackson, C.L.; Barnes, J.D. Epoxy/SiO2 Interpenetrating Polymer Networks. Polym. Adv. Technol. 1996, 7 ... Matějka, L.; Dušek, K.; Pleštil, J.; Kříž, J.; Lednický, F. Formation and structure of the epoxy-silica hybrids. Polymer 1999, ...
... then creating landscapes and beautiful scenery with epoxy resin is an excellent choice. ... The time it takes to solidify depends on the compounds in the mixture. Some can cure within a few minutes, while others take a ... JDiction Epoxy Resin Kit This is a great beginners kit for making jewelry from epoxy resin. With three easy steps and about 45 ... Insnug Epoxy Resin Kit for Beginners. This is excellent if you want to start making jewelry with epoxy resin. It includes ...
  • or opt for traditional epoxy resins that have been around for decades. (thefrisky.com)
  • Both epoxy resins and traditional epoxies are based on the same chemical formula. (thefrisky.com)
  • For that reason, almost all of the time, when you read about epoxies, you're reading about ETA resins. (thefrisky.com)
  • Resins are almost always based on various epoxy mixtures that have been used for many years. (thefrisky.com)
  • There are many different epoxy resins choices, and they can be made to any hardness or hardness range in the final product. (thefrisky.com)
  • The main advantage of traditional epoxies is that they are usually cheaper than ETA resins. (thefrisky.com)
  • Epoxy resins are strong, permanent, and hard to damage. (thefrisky.com)
  • Epoxy resins are good for repairing things or gluing two pieces of wood together that will be in a high-stress situation (as in the case of flooring glued to subfloor). (thefrisky.com)
  • Epoxy resins are solid and permanent. (thefrisky.com)
  • Epoxy resins can be heated briefly without breaking down in the process (e.g., heating wood glue to a high temperature and then placing it on a hot surface is one way of popping it). (thefrisky.com)
  • Epoxy resins can withstand greater amounts of a shock than traditional epoxies. (thefrisky.com)
  • Epoxy resins come in various colors, so they are easy to match to an existing surface. (thefrisky.com)
  • Epoxy resins are generally easier to mix than traditional epoxies. (thefrisky.com)
  • Curing Epoxy Resins: If you're looking for a hard bond that will last for a long time, you may have to consider curing your epoxy resin (the process by which it's fixed). (thefrisky.com)
  • Epoxy resins have a low working temperature (they don't melt until well above room temperature ). (thefrisky.com)
  • This makes epoxy resins a poor choice for gluing wood together. (thefrisky.com)
  • Epoxy resins are not waterproof when cured. (thefrisky.com)
  • Epoxy resins are not easily mixed (from what I've been told, it takes a long time for it to mix into solution fully). (thefrisky.com)
  • Epoxy resins can produce a large amount of smoke when mixed. (thefrisky.com)
  • They require less mixing than epoxy resins, and they mix much quicker. (thefrisky.com)
  • Traditional epoxies are more flexible than epoxy resins. (thefrisky.com)
  • Traditional epoxies are less likely to harden in the middle of a processor while you're gluing something together (because traditional epoxies have a higher working temperature than epoxy resins). (thefrisky.com)
  • Epoxy itself is made of polymer resins and hardening agents like glues, which (when mixed) cure to form a strong and durable chemical bond. (thumbtack.com)
  • In order to improve the thermal conductivity of epoxy resins (EP) without reducing their dielectric properties, a kind of molybdenum disulfide with microspheres structure (S-MoS 2 ) was prepared via surfactant promoting hydrothermal process based on the sodium molybdate, thiosemicarbazide, and sodium dodecyl sulfate. (researchsquare.com)
  • They are commonly used as precursors for POLYMERS such as EPOXY RESINS. (bvsalud.org)
  • 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)
  • 4. A process for producing an epoxy resin composition according to claim 1 comprising the step of kneading an epoxy resin with the other components of the composition. (epo.org)
  • 9. Use of an epoxy resin according to claim 1, a latent epoxy curing or cure accelerating agent according to claim 2 or a surface-treating agent according to claim 3 in production of a cured epoxy resin product. (epo.org)
  • Epoxy Resin or Traditional Epoxy? (thefrisky.com)
  • What Would Be A Better Choice - Epoxy Resin or Traditional Epoxy? (thefrisky.com)
  • What is Epoxy Resin? (thefrisky.com)
  • ETA is a solid polymer , so it takes a lot of epoxy resin in solution before it begins to melt. (thefrisky.com)
  • In some cases, a resin is made from just one epoxy compound (e.g., phenol-formaldehyde ). (thefrisky.com)
  • When do you use Epoxy Resin? (thefrisky.com)
  • If you need a strong bond that will last for a long time, then epoxy resin is the best choice. (thefrisky.com)
  • If you need something that will hold a deck board down to the wood of the deck, you're not going to want a high-strength epoxy resin. (thefrisky.com)
  • What are the Advantages of Epoxy Resin? (thefrisky.com)
  • Epoxy resin bonds are usually stronger than traditional epoxies (they don't break down in the process). (thefrisky.com)
  • What are the Disadvantages of Epoxy Resin? (thefrisky.com)
  • This means that epoxy resin can be brittle even when it's cured. (thefrisky.com)
  • This is a problem if you use an epoxy resin to glue two pieces of wood together because the epoxy resin will start to melt before you're finished gluing the pieces together. (thefrisky.com)
  • This is because the epoxy resin has such a strong melting point that it can't be heated without melting. (thefrisky.com)
  • The fumes produced from a still curing epoxy resin are quite toxic. (thefrisky.com)
  • After a few months and a few gallons of epoxy resin me and my wife finally figured out how to get high qaulity work on wood plaques. (articlealley.com)
  • But if you want to make art that should last for several centuries, then creating intricate landscapes and beautiful scenery with epoxy resin is an excellent choice. (kdvr.com)
  • All things considered, those were probably epoxy resin , the crystal clear, super-hard material that's used to encompass the flower or create the ocean, waves and shoreline in a scale model. (kdvr.com)
  • Using epoxy resin as an art form is labor-intensive but visually striking. (kdvr.com)
  • However, if you work quickly enough, it is possible to use epoxy resin as paint. (kdvr.com)
  • There also are silicone molds in several different shapes to encase objects such as insects or flowers in epoxy resin. (kdvr.com)
  • This is excellent if you want to start making jewelry with epoxy resin. (kdvr.com)
  • This is a great beginner's kit for making jewelry from epoxy resin. (kdvr.com)
  • This is an excellent starting point for anybody who wants to learn about making coasters with epoxy resin. (kdvr.com)
  • Epoxy resin (EP) is a kind of commonly used materials with high mechanical properties, low creep tendency, excellent resistance to chemical corrosion and thermal deformation [ 1 - 2 ], thus it has been widely used in electronic and electrical materials. (researchsquare.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)
  • Allyl compounds, aldehydes, epoxides and of chemicals that possess an epoxy ring, and peroxides. (who.int)
  • we have limited supplies of various epoxy, urethane and color chip flakes. (epoxysuperstore.com)
  • Our clear amber epoxy potting compound is the perfect product for encapsulating electronic circuits. (aeromarineproducts.com)
  • Over the years we learned that the simplest way to make field read electronics is to incase them in epoxy potting compound. (exp-tech.de)
  • Potting compound makes sensitive electronics water proof, corrosion proof and vibration proof. (exp-tech.de)
  • Atlas Scientific has worked with many different types of potting compounds over the years. (exp-tech.de)
  • All potting compounds are NOT the same. (exp-tech.de)
  • We have found that many of them conduct micro voltages, although this is not a problem for normal electronics the sensitive hardware that is needed to read electrochemical signals can easy be rendered useless by using most types of epoxy potting compound. (exp-tech.de)
  • This is the exact same epoxy potting compound used on every single Atlas Scientific circuit. (exp-tech.de)
  • For example, if you want to create a miniature shoreline, you'd mix your chosen ocean hues into some epoxy, wait for it to harden and then pour it onto your surface. (kdvr.com)
  • When you hire a professional , you can choose more durable options like 100% solids epoxy floor coating, which is great for repelling stains and abrasion. (thumbtack.com)
  • Epoxy floors are highly durable and tend to outlast standard flooring systems. (thumbtack.com)
  • Employees were concerned about odors in the injection molding and epoxy injection areas. (cdc.gov)
  • We recommended employees use gloves when mixing and handling epoxies and injection molding employees use hearing protection. (cdc.gov)
  • Meantime, "a hundred little projects" for the low bridge are continuing, though the big work - carbon-fiber wrap and epoxy injection, like the high bridge - is on the back burner while the high bridge stays in the spotlight. (westseattleblog.com)
  • wherein R1 to R3 are the same or different and each is hydrogen, straight-chain, branched or cyclic alkyl or aryl, and with (3) a phenolic compound. (epo.org)
  • Organic compounds that include a cyclic ether with three ring atoms in their structure. (bvsalud.org)
  • Conclusion The epoxy paint studied showed no cytotoxicity in vitro. (bvsalud.org)
  • The time it takes to solidify depends on the compounds in the mixture. (kdvr.com)
  • The lifespan of epoxy flooring depends heavily on where it's located, how much traffic it sees, the company or contractor you hire and how well you stay on top of maintenance. (thumbtack.com)
  • We evaluated exposures to volatile organic compounds including 2-butoxyethanol, isopropyl alcohol, pentane, toluene, and n-butyl glycidyl ether. (cdc.gov)
  • Normally, mixing the chemicals together will give you a clear epoxy, but pigments can be added to change the color, just like in an oil painting. (kdvr.com)
  • Choose a clear epoxy or polyurethane top coat to protect this layer. (thumbtack.com)
  • Purchase by the gallon unless a large amount of epoxying needs to be done. (gsa.gov)
  • Traditional epoxies require a significant amount of mixing, and the mixing process can be difficult. (thefrisky.com)
  • You have to wait a long time for the epoxy to cure completely. (thefrisky.com)
  • We found low levels of volatile organic compounds and carbon monoxide. (cdc.gov)
  • Our product range includes a wide range of epoxy putty general purpose. (pusealant.net)
  • What are the different types of epoxy floor coatings? (thumbtack.com)
  • It is also used in liquid soaps, cosmetics, industrial and household cleaners, and dry-cleaning compounds. (cdc.gov)
  • Epoxy floors are famously resilient, shiny and easy to keep clean. (thumbtack.com)
  • Claims 1 to 8 of the auxiliary request differed from Claims 1 to 8 of the main request in that the possibility that all the radicals R1 to R3 were hydrogens had been excluded in formula (I) in Claims 1, 2 and 3, and that the expression 'boron compound' had been replaced by 'boric ester' in Claims 1, 2, 3, and 5 to 8. (epo.org)
  • This procedure includes guidance on stabilizing decayed wood members with epoxy consolidant and filler. (gsa.gov)
  • Epoxy has adequate compression strength, but is not the best choice to repair a member in tension. (gsa.gov)
  • if the area to be repaired is large, as epoxy repair can be expensive. (gsa.gov)
  • Plenty of companies and contractors offer epoxy floor cleaning, repair, coating and installation services for garages, warehouses, commercial workshops and even residential spaces. (thumbtack.com)
  • Talk to an epoxy flooring specialist in your area to see what your options are, and get advice on the best type to use on your floors. (thumbtack.com)
  • In addition, as a transition metal disulfide compound, MoS 2 also has the characteristics of high electron mobility, valley polarization, strong orbital coupling, strong mechanical strength, excellent thermal conductivity, etc. [ 14 - 15 ], which can be used as an improver for electronic devices. (researchsquare.com)
  • Epoxy floor coatings typically range from 0.011 inches (11 mils) to 0.375 inches (375 mils). (thumbtack.com)
  • Epoxy floors are excellent choices for warehouses, workshops, garages and other high-traffic, high-use areas where spill resistance is important. (thumbtack.com)
  • Epoxy consolidant and epoxy filler, both are multiple part compounds. (gsa.gov)
  • For homes and other residential applications with lighter traffic, epoxy flooring is capable of lasting far longer. (thumbtack.com)
  • Find an epoxy flooring specialist near you who can assess the state of the subsurface to identify problems before they arise. (thumbtack.com)
  • Traditional epoxies are better for low-stress situations when you need something strong, but only for a short time. (thefrisky.com)
  • NOTE: The above products of ConServ Epoxy LLC are recommended for treatment of thicker wood such as window sills. (gsa.gov)
  • ConServ Epoxy LLC): Cures slowly with a 5 to 7 hour application time to allow deep penetration. (gsa.gov)

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