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China Virgin Pet Granules /Polyethylene Terephthalate/Pet, Find details about China Pet, Polyethylene Terephthalate Resin from Virgin Pet Granules /Polyethylene Terephthalate/Pet - Lanzhou Qianmiaonuo Trading Co., Ltd.
United States Patent Office 3,385,831 Patented May 28, 1968 TEXTILE FIBERS F POLYETHYLENE TEREPH- THALATE/HEXAHYDROTEREPHTHALATE C0- POLYESTER William H. Watson, Grifton, N.C., assignor to E. I. du Pont de Nemours and Company, Wilmington, Del., a corporation of Delaware No Drawing. Continuation-impart of application Ser. No. 298,595, July 30, 1963. This application Feb. 6, 1967, Ser. No. 614,025 3 Claims. (Cl. 260-75) ABSTRACT OF THE DISCLOSURE Linear condensation copolyester fibers for use in textile fabric are disclosed to be an improvement over conventional polyethylene terephthalate fibers. The copolyester fibers differ from the conventional fibers in having 8 to 18 mol percent of the terephthalic acid component replaced by hexahydroterephthalate components, The fibers possess enhanced dyeability and good over-all physical properties, with absolute shrinkage values at 196 C. of not more than about higher than comparable fibers of polyethylene terephthalate homopolyester. Fabric prepared from ...
QPET makes use of modern state of the art equipment & processes to produce polyethylene terephthalate products in the form of pet preforms; pet plastic containers; pet plastic bottles and pet plastic closures. Polyethylene terephthalate bottles are produced & distributed throughout South Africa. QPET also caters for international clients. We welcome you to make QPET one of your plastic bottles manufacturers.
China Polyethylene Terephthalate Glycol, Find details about China PETG Resin, PETG Granules from Polyethylene Terephthalate Glycol - Lanzhou Qianmiaonuo Trading Co., Ltd.
TY - JOUR. T1 - Electrical conduction and dielectric relaxation in polyethylene terephthalate succinate. AU - Kato, Fukutaro. AU - Ohki, Yoshimichi. PY - 2008/12/1. Y1 - 2008/12/1. N2 - Electrical conduction and complex permittivity are examined in polyethylene terephthalate succinate, focusing on their relations to dielectric relaxation processes. Both the real and imaginary parts of complex permittivity, namely dielectric constant σrand dielectric loss factor σr", increase with a decrease in frequency, especially at high temperatures. They are both ascribed to the transport of ionic mobile carriers. Namely, the carrier transport forms conduction current that should contribute to σr". On this occasion, if charge exchange does not occur at the two electrodes, heterocharge layers should be formed before the electrodes. This should increase the charge density on the electrodes, thus contributing to σr In addition to the increase in σr and σr due to mobile ions, two relaxation processes, ...
3.3.1] The [patent proprietor] argued in this respect that according to page 11, lines 36-37 of the opposed patent, polyethylene terephthalate on the market had an LTC temperature of 128°C. In order to identify the heating rate applied in the opposed patent, the skilled person therefore simply had to calibrate the DSC measurement and in particular the heating rate with the help of the polyethylene terephthalate resin on the market such that an LTC temperature of 128°C resulted. The heating rate thereby determined was the heating rate applied in the opposed patent. The [patent proprietors] argument logically implies that at the filing date of the opposed patent either only one polyethylene terephthalate resin was available on the market or all polyethylene terephthalate resins available on the market had the same LTC temperature of 128°C. As set out by the [opponent] and as also acknowledged by the [patent proprietor], this was however not the case. Actually, "polyethylene terephthalate ...
A new esterase from Thermobifida halotolerans (Thh_Est) was cloned and expressed in E. coli and investigated for surface hydrolysis of polylactic acid (PLA) and polyethylene terephthalate (PET). Thh_Est is a member of the serine hydrolases superfamily containing the -GxSxG- motif with 85-87% homology to an esterase from T. alba, to an acetylxylan esterase from T. fusca and to various Thermobifida cutinases. Thh_Est hydrolyzed the PET model substrate bis(benzoyloxyethyl)terephthalate and PET releasing terephthalic acid and mono-(2-hydroxyethyl) terephthalate in comparable amounts (19.8 and 21.5 mmol/mol of enzyme) while no higher oligomers like bis-(2-hydroxyethyl) terephthalate were detected. Similarly, PLA was hydrolyzed as indicated by the release of lactic acid. Enzymatic surface hydrolysis of PET and PLA led to a strong hydrophilicity increase, as quantified with a WCA decrease from 90.8° and 75.5° to 50.4° and to a complete spread of the water drop on the surface, respectively.
Synthetic biomaterials are currently a popular choice for use in many surgical soft tissue repair applications. Polyethylene terephthalate (PET) is an example of such material that has been used, more specifically, for hernia repair. PET mesh is one of the top choices for hernia repair due to its flexibility, porosity, mechanical strength, and relative inertness; however, explanted PET hernia meshes have shown signs of degradation, which can cause complications with tissue compatibility and increase the chance for recurrence when used as a biomaterial implant for extended periods of time. In this study, the effects of modifying the PET surface, through chemical functionalization and gold nanoparticle (AuNP) conjugation, were investigated. Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and differential scanning calorimetry (DSC) were used to characterize the modified PET in comparison to pristine PET. Results from these ...
Purpose: Comparison of the biocompatibility of self-expanding polyethylene terephthalate (PET) stents with self-expanding metallic stents (Wallstents). Methods: Diameter- and length-matched PET stents and Wallstents were symmetrically implanted in the paired iliac arteries of 13 crossbred domestic swine. Stent deployment was studied angiographically and with intravascular ultrasound immediately after stent implantation. The angiographic stented lumen diameter was measured using quantitative vessel analysis before, immediately after stenting, and at 6-week follow-up. Cross-section histopathology and area morphometry were performed. Results: Immediately poststenting, intravascular ultrasound revealed proximal dislocation of 5 of the 13 PET stents, whereas all metal stents were firmly embedded at the implantation site. At 6-week follow-up, three of the remaining PET stents were totally or subtotally occluded by organized thrombus, whereas all metal stents were patent. Compared with immediately ...
Read "MEASUREMENT OF INTERNAL RADIATION DOSE DISTRIBUTION IN CT EXAMINATIONS USING POLYETHYLENE TEREPHTHALATE RESIN, Radiation Protection Dosimetry" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Today, the U.S. Department of Commerce announced the initiation of new antidumping duty (AD) investigations to determine whether polyethylene terephthalate sheet (PET sheet) from the Republic of Korea, Mexico, and the Sultanate of Oman are being dumped in the United States.
Summary Polyethylene Terephthalate (PET) Industry Outlook in Taiwan to 2021 - Market Size, Company Sha - Market Research Reports and Industry Analysis
Polyethylene Terephthalate (PET) Industry Outlook in Canada to 2020 - Market Size, Company Share, Price Trends, Capacity Forecasts of All Active and Planned
Polyethylene Terephthalate cell culture insert with pore size of 1.0 µm used in a 24-well pate for cell attachment, cell culture, cell differentiation & ICC. Find MSDS or SDS, a COA, data sheets and more information.
Page contains details about Cu doped branched zinc oxide mesostructure vertical array/polyethylene terephthalate filaments . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
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A method for using a foam condensation board system in a building according to one embodiment comprises the steps of: providing a foam condensation board system, providing a building having a roof and a roof supporting structure, and installing the foam condensation board system to the roof supporting structure. The foam condensation board system comprises at least a first layer, a second layer, a third layer, a fourth layer, and a fifth layer. The first layer is made from a material selected from the group consisting of alkenyl aromatic polymers, polyolefins, polyethylene terephthalate, polyesters, and combinations thereof. The second and fourth layers are independently made from a material selected from the group consisting of alkenyl aromatic polymers, polyolefins, polyethylene terephthalate, adhesives, and combinations thereof. The third layer is made from a material selected from the group consisting of alkenyl aromatic polymers, polyethylene terephthalate, and combinations thereof. The fifth layer
This is the first article to our knowledge to report the use of biophysical forces to attach endothelial cells to the surface of prosthetic vascular grafts. EOCs readily endocytose paramagnetic particles and are rapidly attracted to magnetized graft surfaces. Once seeded, these cells remain attached at shear forces comparable to those seen in the circulation. A porcine study provided proof of concept and demonstrated the presence of a large number of seeded cells after 24 hours of pulsatile blood flow.. Vascular grafts based on either expanded polytetrafluoroethylene or polyethylene terephthalate fiber (Dacron) work very well when positioned in vessels with diameters ,6 mm and in conditions of high flow. However, the majority of vascular disease occurs in vessels with caliber of ,6 mm. Coronary bypass grafting is commonly performed with arterial conduits (when available), and with autologous saphenous vein grafts. However, up to 30% of the patients do not have veins suitable for vascular ...
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BoPET (Biaxially-oriented polyethylene terephthalate) is a polyester film made from stretched polyethylene terephthalate (PET) and is used for its high tensile strength, chemical and dimensional stability, transparency, reflectivity, gas and aroma barrier properties, and electrical insulation. A variety of companies manufacture boPET and other polyester films under different brand names. In the UK and US, the most well-known trade names are Mylar, Melinex, and Hostaphan. BoPET film was developed in the mid-1950s, originally by DuPont, Imperial Chemical Industries (ICI), and Hoechst. In 1955 Eastman Kodak used Mylar as a support for photographic film and called it Estar. The very thin and tough film allowed six-thousand-foot reels to be exposed on long-range U-2 reconnaissance flights. In 1964, NASA launched Echo II a 40 m (131 ft) diameter balloon constructed from a 9 micrometres (0.00035 in) thick mylar film sandwiched between two layers of 4.5 micrometres (0.00018 in) thick aluminum foil ...
In order to save costs, an increasing number of polyester intermediate producers like spinning mills, strapping mills, or cast film mills are working on the direct use of the PET-flakes, from the treatment of used bottles, with a view to manufacturing an increasing number of polyester intermediates. For the adjustment of the necessary viscosity, besides an efficient drying of the flakes, it is possibly necessary to also reconstitute the viscosity through polycondensation in the melt phase or solid-state polycondensation of the flakes. The latest PET flake conversion processes are applying twin screw extruders, multi-screw extruders or multi-rotation systems and coincidental vacuum degassing to remove moisture and avoid flake pre-drying. These processes allow the conversion of undried PET flakes without substantial viscosity decrease caused by hydrolysis. With regard to the consumption of PET bottle flakes, the main portion of about 70% is converted to fibers and filaments. When using directly ...
In order to save costs, an increasing number of polyester intermediate producers like spinning mills, strapping mills, or cast film mills are working on the direct use of the PET-flakes, from the treatment of used bottles, with a view to manufacturing an increasing number of polyester intermediates. For the adjustment of the necessary viscosity, besides an efficient drying of the flakes, it is possibly necessary to also reconstitute the viscosity through polycondensation in the melt phase or solid-state polycondensation of the flakes. The latest PET flake conversion processes are applying twin screw extruders, multi-screw extruders or multi-rotation systems and coincidental vacuum degassing to remove moisture and avoid flake pre-drying. These processes allow the conversion of undried PET flakes without substantial viscosity decrease caused by hydrolysis. With regard to the consumption of PET bottle flakes, the main portion of about 70% is converted to fibers and filaments. When using directly ...
Dacron. Sanaz Leilabadi and Linda Edwards. Get to know Dacron. Trade name for Polyethylene Terephthalate aka PET, PETE, PETP Polyethylene Terephthalate is a resin of the polyester family that is used to make beverage, food and other liquid containers, synthetic fibers Slideshow 150147 by liam
Summary of Facts and Submissions. I. European patent application No. 90 902 093.5, corresponding to PCT/US89/05081 (WO 90/07592) in the name of AlliedSignal Inc. (formerly Allied-Signal Inc.), which had been filed on 17 November 1989, claiming priority from a US application filed on 3. January 1989, resulted in the grant of European patent No. 452 405 on 16 September 1992 on the basis of 9. claims, independent Claim 1 reading as follows:. 1. A process for the production of a dimensionally stable drawn polyethylene terephthalate multifilament yarn having filaments of at least 2.5 denier per filament (2.8 dtexpf) comprising the steps of:. a) extruding a polyethylene terephthalate polymer melt through a spinnerette having a plurality of extrusion orifices to form filaments;. b) advancing the extruded multifilament yarn first through a delay zone then through a quenching zone to solidify the filaments in a controlled manner;. c) withdrawing the solidified multifilament yarn from the quenching zone ...
On August 16, 2010, the Department of Commerce (the Department) published the preliminary results of the administrative review of the antidumping duty order on polyethylene terephthalate film, sheet, and strip (PET film) from Brazil for the period November 6, 2008, through October 31, 2009. We...
Trade defence instruments, such as anti-dumping or anti-subsidy duties, are ways of protecting European production against international trade distortions.
Trade defence instruments, such as anti-dumping or anti-subsidy duties, are ways of protecting European production against international trade distortions.
A new bottle-top dispensing cap requires maximum precision of dimensional stability and geometry to guarantee sealing of the membrane and the assembled carrier components. A Hong Kong-based company [..]. ...
Nanocomposite with enhanced modulus inventors. Pdfqueen pdf pdfqueen pdf nanocomposite with enhanced modulus inventors. Glycols... Blog.cz - Stačí otevřít a budeš v obraze.
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DESCRIPTION (provided by applicant): Over 60,000 prosthetic grafts, which are comprised of either polyethylene terephthalate (polyester) or expanded polytetrafluoroethylene (ePTFE), are implanted in the United States each year. Medium (6-8mm) internal dia meter (I.D.) prosthetic arterial grafts continue to have unacceptably high failure rates when used in the clinical setting. Currently, there is no small- diameter prosthetic arterial graft clinically accepted for use in the peripheral circulation (below kn ee popliteal) and coronary vessels, which affects over 500,000 patients each year. The two major complications associated with these grafts are acute thromboses and incomplete, unregulated cellular healing. This failure is attributed to the lack of endothe lial cells at the biomaterial/blood interface, a lining that normal blood vessels possess. The goal of this two-year Phase I project is to synthesize and characterize in vitro a novel nanofibrous vascular graft material using our ...
This study was undertaken to analyze immediate and mid-term knitted Dacron graft dilation and to establish which parameters should be taken as a reference when aortic graft dilation is evaluated. A Dacron knitted microvel double velour vascular graft (Hemashield Gold) was implanted in 30 patients with aneurysmal (19 cases, 63%) or occlusive (11 cases, 37%) aortic disease. The stems of bifurcated prostheses (27 patients, 90%) and tube grafts (3 patients, 10%) were measured. The package sizing (labelled size) was compared with the external diameter measured intraoperatively with a slide caliper, prior to implantation and after complete clamp release. Additional measurements were obtained by ultrasound 1 and 6 months after implantation, and in 16 cases (53% of the patients) ultrasound and computed tomography (CT) were performed at the end of the first year. The means of the measurements were compared using Students t test for matched pairs. The statistical significance level was set at p values | 0.05.
A mesh composite graft including an inner component, an outer component formed from strands of durable material, such as polyethylene terephthalate, and an intermediate component made from strands of biocompatible synthetic material having a melting point less than that of the durable material from which the outer component is formed and less than that of the biocompatible synthetic material from which the inner component of the graft is formed. By heating the graft to a temperature greater than the melting point of the material from which the intermediate component is formed but less than the melting point of the outer component material and less than the melting point of the material from which the inner component is formed, the components are bound by the melted intermediate component to provide a totally porous, compliant composite graft reinforced by the outer component.
Thermoplastic polyesters containing CHDM exhibit enhanced strength, clarity, and solvent resistance. The properties of the polyesters vary from the high melting crystalline poly(1,4-cyclohexylenedimethylene terephthalate), PCT, to the non-crystalline copolyesters derived from both ethylene glycol and CHDM. The properties of these polyesters also is affected by the cis/trans ratio of the CHDM monomer.[3] CHDM reduces the degree of crystallinity of PET homopolymer, improving its processability. The copolymer tends to resist degradation, e.g. to acetaldehyde. The copolymer with PET is known as glycol-modified polyethylene terephthalate, PETG. PETG is used in many fields, including electronics, automobiles, barrier, and medical, etc. ...
TPA is employed for the production of linear, saturated polyester resins, fibers and films by combination with glycols. The major worldwide consumption of TPA is aimed at the production of polyethylene terephthalate( PET ) polymer which is consumed in the production of polyester fibers, polyester film and solid-state (bottling grade ) resins.. The process using bromine as a reaction promoter was made commercially available by AMOCO and known as the Amoco process ...
A reliable and effective technique in case of limb salvage surgery after resection of extensive bone tumors is represented by the implant of modular or custom-made megaprosthesis. Fixation of the residual surrounding soft tissue on the implant represent a challenge for the surgeon and the use of a polyethylene terephthalate (PET) tube over it, also known as Trevira, is currently a common choice for reattachment with good clinical outcomes. We compared fibroblastic cell culture potential over simple titanium coating vs titanium surrounded by Trevira and evaluated cell viability and replication at 24, 48 and 72 h using MTT cell growth assay and scanning electron microscopy to determine if there was any difference in the potential of cell growth associated to the material used ...
When you need extruded film and sheet, Farber Plastics Inc.is the supplier of choice. The Farber family has been extruding thermoplastic film and sheet since 1963, producing HIPS film and sheet since 1975. With a multi-million dollar expansion into PET (polyethylene terephthalate) roll stock in 2007, the company, with Lewis Farber as president, continues to grow and serve a variety of markets ...
While tweaking the enzyme to find out how it had evolved, the scientists found that the changes they had made enabled the enzyme to break down PET (polyethylene terephthalate) - the plastic used in making drinks bottles - even faster! Although it currently takes a few days to start breaking down PET, the researchers are confident that they will be able to make the enzyme even more effective.. Their eventual aim will be to break down PET into its original components, which would be a huge development, potentially enabling clear PET bottles to be recycled into new, clear PET bottles. Currently, where PET bottles are recycled, they tend to be turned into fibres for clothing and carpets. PET currently makes up about 20% of all plastics produced globally, so making this enzyme really efficient at breaking it down and enabling full recycling would be a game-changer.. There is quite a way to go before the we can use enzymes on a large scale to help us break down and recycle plastics, and were going to ...
1, 1972 D. THEISSEN 3,681,179 MOISTURE-RESISTANT SOLAR CONTROL FILM Filed July 20, 1970 I N VEN TOR. DONALD R THE/$55M ,M, M AQOQM ATTORNE YS United States Patent 3,681,179 MOISTURE-RESISTANT SOLAR CONTROL FILM Donald R. Theissen, St. Paul, Minn., assignor to Minnesota Mining and Manufacturing Co., St. Paul, Minn. Continuation-impart of application Ser. No. 678,013, Oct. 25, 1967. This application July 20, 1970, Ser. Int. Cl. B44f 1/00; A61l15/06 U.S. Cl. 161-4 1 Claims ABSTRACT OF THE DISCLOSURE CROSS-REFERENCES TO RELATED APPLICATIONS This application is a continuation-in-part of copending U.S. application Ser. No. 678,013, filed Oct. 25, 1967, now abandoned. BACKGROUND OF THE INVENTION In recent years reflective-transparent solar control film has achieved an important place in the economy of the United States and several other countries. Products of this type commonly involve a l-mil biaxially oriented polyethylene terephthalate film, having a vapor-deposited aluminum layer about 25-125 ...
Article Environmental impact of refillable vs. non-refillable plastic beverage bottles in Norway. This research compares the environmental impact, in terms of greenhouse gas emissions, of using refillable polyethylene terephthalate (REF-PET) and non-...
Bioplastics are most frequently used in packaging, although bioplastics could potentially be used in any way that regular plastics are used. The performance characteristics of bioplastics and petrochemical plastics are very similar. There have been situations where bioplastics had to be reformulated to deal with performance problems, such as insufficient shelf-life, or those infamously loud Sun Chips bags. (When Frito-Lay debuted compostable chip bags in 2010, customers complained that the bags were too noisy. A reformulated, quieter bag was later developed.). Coca-Colas PlantBottle program makes plastic beverage bottles that are 30 percent plant-based. The bottles are made from polyethylene terephthalate (PET), the exact same plastic that comes from petrochemical processes, but 30 percent comes from Brazilian sugar ethanol. The mono-ethylene glycol that results doesnt change the final chemical formulation of the plastic. However, it was created from a renewable resource (sugar cane) instead ...
In order to create an artificial trachea the patient is first imaged by a CT scan. This is so the tissue engineers can make a scaffold that fits perfectly within the patients body. The scaffold is then made from nano-sized PET (polyethylene terephthalate) fibers using these specifications. Next, it is seeded with stem cells from the patients bone marrow by placing it in a bioreactor with transcription factors. These help force the stem cells to differentiate into trachea-specific cells. These cells then grow and divide to produce cartilage around the scaffold after 2-3 days. Finally, it is surgically implanted by suturing it the patients throat and lungs. The estimated cost of this entire surgery is $450,000 [7]. As for side effects it appears that there is low risk of rejection due to using the patients own stem cells. Because of this, recipients of this procedure havent been given any type of anti-rejection drugs. However, with any type of foreign object in the human body there is always ...