[38][39][40] Spectroscopic data is available from AIST.[41]. BPA is also found in epoxy resins, which act as a protective lining on the inside of some metal-based food and beverage cans. Heightened interest in the safe use of BPA in food packaging has resulted in increased public awareness as well as scientific interest. FDAs Studies. [74] It binds to both of the nuclear estrogen receptors (ERs), ER and ER. Di- and polyols lead to . NIEHS is committed to conducting the most rigorous research in environmental health sciences, and to communicating the results of this research to the public. [11]. [35][34], BPA has a fairly high melting point but can be easily dissolved in a broad range of organic solvents including toluene, ethanol and ethyl acetate. [26] The utilization of BPA further expanded with discoveries at Bayer and General Electric on polycarbonate plastics. The reaction process is as follows:
[1] This draft assessment was reviewed by a Subcommittee of FDAs Science Board, which released its report at the end of October 2008. Chemical Economics Handbook. Sign in to download full-size image Use the browser controls to adjust the font size, or print this page. It is also known to exhibit strong endocrine-disrupting ability. (2013) A new approach to synergize academic and guideline-compliant research: the CLARITY-BPA research program. Bisphenol A (BPA, 80-05-7) is an organic compound used predominantly in the production of products made of polycarbonate plastic and epoxy resins that line food and beverage cans. If you are giving a presentation about an environmental health topic or As part of its premarket review of food packaging materials, FDAs food contact regulations and food contact notification program assesses the likely migration from the packaging material to assure that any migration to food occurs at safe levels. All rights reserved, 2,2-[(1-methylethylidene)bis(4,1-phenyleneoxymethylene)]bis[oxirane],homopoly, 4,4-(1-methylthylidene)bisphenol,polymerwith2,2-[(1-methylethylidene)bis(, Poly(Bisphenol A-co-epichlorohydrin) average Mw ~40,000, pellets, 4-(1-methylethylidene)bisphenol,-polymerwith(chloromethyl)oxirane, bis(4,1-phenyleneoxymethylene)]bis[oxirane], diglycidyletherofbisphenola-basedepoxyresins,lowmolecularweight, lowmolecularweightliquiddgebpa-basedepoxyresins, lowmolecularweightsoliddgebpa-basedepoxyresins, Phenol,4,4-(1-methylethylidene)bis-,polymerwith(chloromethyl)oxirane, phenol,4,4-isopropylidenedi-,dimerwith1-chloro-2,3-epoxypropane, phenol,4,4-isopropylidenedi-,monomerwith1-chloro-2,3-epoxypropane, phenol,4,4-isopropylidenedi-,polymerwith1-chloro-2,3-epoxypropane, phenol,4,4-isopropylidenedi-,tetramerwith1-chloro-2,3-epoxypropane, 2,2-Bis(p-hydroxyphenyl)propane-epichlorohydrin condensate, 2,2-Bis(p-hydroxyphenyl)propane-epichlorohydrin copolymer, 2,2-Bis(p-hydroxyphenyl)propane-epichlorohydrin polymer, 2,2-Diphenylolpropane-epichlorohydrin polymer, 4,4'-ISOPROPYLIDENEDIPHENOL/EPICHLOROHYDRIN COPOLYMER, 4,4-ISOPROPYLIDENEDIPHENOLEPICHLOROHYDRINRESIN, PHENOL44METHYLETHYLIDENEBISPOLYMERWITHCHLOROMETHYLOXIRANE, Reaktionsprodukt aus Bisphenol-A oder -F mit Epichlorhydrin (Molekulargewicht <700, Gehalt an freiem Epichlorhydrin <20 ppm, nicht in R40 oder R45 eingestuft), reaction product: bisphenol-A-(epichlorhydrin) epoxy resin (number average molecular weight 700), bisphenol A/ epichlorohydrin resin, solid, bisphenol A/ epichlorohydrin resin, liquid, BISPHENOL A DIGLYCIDYL ETHER RESIN structure, EPICHLOROHYDRIN-4,4'ISOPROPYLIDENEDIPHENOL RESIN, Bisphenol A epichlorohydrin polymer (25068-38-6), P201-P273-P280-P305+P351+P338-P310-P333+P313-P337+P313-P391, 36/38-43-51/53-42/43-63-62-36/37-20/21/22-45-23/24/25, BISPHENOL A DIGLYCIDYL ETHER RESIN Suppliers, BISPHENOL A DIGLYCIDYL ETHER RESIN(25068-38-6)FT-IR, TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)EUROPIUM(III), 4-[1-hydroxy-2-(4-hydroxyphenyl)propan-2-yl]phenol, 4-[2-(4-hydroxyphenyl)propan-2-yl]phenol: 2-methyloxirane, 4-[1,1,1,3,3,3-Hexafluoro-2-(4-hydroxyphenyl)propan-2-yl]phenol, Phenol, 4,4-(1-methylethylidene)bis-, polymer with (chloromethyl)oxirane, monoesters with C18-unsatd. What chemicals are in epoxy resin when you consider this? Epoxy is a synthetic resin that uses two chemical components (typically diglycidyl ethers and a combination of bisphenol A and epichlorohydrin) to harden or cure. When possible, opt for glass, porcelain or stainless steel containers, particularly for hot food or liquids. 2010 Oct 30;24(20):3011-20. n) Yang X, Doerge DR, Fisher JW. Bisphenol A (BPA) is a known endocrine disrupting chemical (EDC), and commonly used as a raw material for production of epoxy resins and polycarbonate plastics, 27 such as water bottles, tableware and food packing materials. Hot Sale CAS No 80-05-7 BPA Solid Bisphenol a for Epoxy Resin Price in Stock FOB Price: US$ 1900-2200 / Ton Min. Bisphenol-A Based Epoxy Vinyl Ester Resins Home Bisphenol-A Based Epoxy Vinyl Ester Resins VE resins are a combination of both polyester resin and epoxy resins best properties. Product. PubChem CID 24754; . As an addition to this core study, FDA is providing extra animals and tissues to a consortium of grantees [8] selected and funded by the National Institute of Environmental Health Sciences to address other critical questions. This early work underpinned the development of epoxy resins, which in turn motivated production of BPA. [99] Regardless, the remaining 29% of BPA will continue through to the environment, with low levels of BPA commonly observed in surface water and sediment in the U.S. and Europe. The 2003-2004 National Health and Nutrition Examination Survey (NHANES III) conducted by the Centers for Disease Control and Prevention (CDC) found detectable levels of BPA in 93% of 2517 urine samples from people six years and older. BISPHENOL A DIGLYCIDYL ETHER RESIN Chemical Properties,Uses,Production Introduction Bisphenol A diglycidyl ether (DGEBA) is a pale yellow liquid epoxy compound formed by the polycondensation of epichlorohydrin (ECH) and bisphenol A (BPA). Copyright 2022 ChemicalBook. MATERIAL SAFETY DATA SHEET West System Inc. MSDS #105-13a Last Revised: 26APR13 1. The molecular weight and the epoxy equivalent weight are controlled by the ratio of epichlorohydrin EPC:BPA. BPA is one of the most thoroughly tested chemicals in use today and has a safety track record of more than 50 years. Toxicol Lett. FDA continues to review the available information and studies on BPA. Bisphenol A (BPA) is a chemical compound primarily used in the manufacturing of various plastics. For example, FDA has participated with Health Canada in encouraging industry efforts to refine their manufacturing methods for the production of infant formula can linings to minimize migration of BPA into the formula. The .gov means its official. You can also browse global suppliers,vendor,prices,Price,manufacturers of Bisphenol A epoxy resin(). It belongs to the phenol class of aromatic organic compounds. Bisphenol A was first synthesized by A.P. Our line of powerful Liquid Epoxy Resins -including Bisphenol A, Modified Bisphenol A, Bisphenol A/F, Modified Bisphenol A/F, Bisphenol F offers the reliability, protection and performance you need, backed by the local customer support Only Olin can provide, virtually anywhere in the world. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME:WEST SYSTEM 105 Epoxy Resin Download or play NIEHS Health Chat's with a wide range of experts and topics. Per the diagram below, most epoxy resins are made by reacting Bisphenol A (BPA) with an excess of epichlorohydrin so the end groups are glycidyl ethers. This compound is synthesized by the condensation of acetone with phenol. The viscosity of the PEOs obtained in present and earlier papers was compared with conventional low molecular weight bisphenol A based epoxy resin D.E.R. BPA is an industrial chemical used to make a hard, clear plastic known as polycarbonate. Lactational transfer of bisphenol A in Sprague-Dawley rats. When dropping is completed within half an hour, heat it for 12-24 hours under temperature 70-80C Stop the heating after bisphenol A is completely disappeared validated by TLC method. Among the various polymers available as resins for composites [26][27][28][29][30][31], epoxy resins are chosen because of their excellent adhesion to many substrates and their high thermal and . Find here online price details of companies selling Bisphenol Resin. Camacho L, Vanlandingham MM, Twaddle NC, Sepehr E, Delclos KB, Fisher JW, Doerge DR. Camacho L, Lewis SM, Vanlandingham MM, Latendresse JR, Olson GR, Davis KJ, Patton RE, Gamboa da Costa G, Woodling KA, Bryant MS, Chidambaram M, Trbojevich R, Juliar BE, Felton RP, Thorn BT. fatty acid dimers, +undefined-86-13650506873 +undefined-86-13650506873. This petition demonstrated, from publicly available information and information collected from industry sources, that the use of BPA-based epoxy resins as coatings in packaging for infant formula had been abandoned. Furthermore, composite . MAIN APPLICATIONS Bisphenol A Epoxy is widely used in the manufacture of: Epoxy resins; Phenolic resins . Some of these studies have raised questions about the safety of ingesting the low levels of BPA that can migrate into food from food contact materials. Toxicol Appl Pharmacol. [21] BPA has been investigated by public health agencies in many countries, as well as by the World Health Organization. The condensation of acetone (hence the suffix 'A' in the name)[32] with two equivalents of phenol is catalyzed by a strong acid, such as concentrated hydrochloric acid, sulfuric acid, or a solid acid resin such as the sulfonic acid form of polystyrene sulfonate. [92] It is primarily a river pollutant,[93] but has also been observed in the marine environment,[94] in soils,[95] and lower levels can also be detected in air. Scientific studies show that in humans BPA is quickly metabolized and eliminated from the body. Developed physiologically based pharmacokinetic models that can be used to predict the level of internal exposure to the active and inactive forms of BPA. Usage/Application: Polycarbonate , Epoxy resin, Thermal paper. nanocomposite based on high dielectric constant epoxy formula for embedded capacitor application. Because of the way BPA is processed in the body, it is very unlikely that exposure to BPA at typical levels could cause health effects. 2010 Oct 1;248(1):1-11. h) Fisher JW, Twaddle NC, Vanlandingham M, Doerge DR. Pharmacokinetic modeling: prediction and evaluation of route dependent dosimetry of bisphenol A in monkeys with extrapolation to humans. 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