As is the case when foods are in direct contact with any packaging material, small, measurable amounts of the packaging materials may migrate into food and can be consumed with it. Visit ChemicalBook To find more Bisphenol A epoxy resin() information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. Extensive scientific dataabout BPA provides consumers with information about BPA safety and help put public confusion about BPA into perspective: If I buy a BPA-free product, is it safer? Studying this sort of longterm, lowdose interaction is difficult, and although there have been numerous studies, there are considerable discrepancies in their conclusions regarding the nature of the effects observed as well as the levels at which they occur. In the United States, FDA is the agency charged with this review for food contact applications. Bisphenol A (BPA) is a chemical produced in large quantities for use primarily in the production of polycarbonate plastics. Scientific studies show that in humans BPA is quickly metabolized and eliminated from the body. The results of this study showed no effects of BPA at any dose in the low-dose range. [7] Thus, in bisphenol F, the F signifies formaldehyde. [91], BPA has been detectable in the natural environment since the 1990s and is now widely distributed. The molecular structure of bisphenol A epoxy resin contains aromatic rings and lateral hydroxyl groups, which is beneficial to improve adhesion; in addition, the aromatic ring structure also gives the resin higher rigidity, tensile strength and thermal stability; in general, The main characteristics of bisphenol A epoxy type include: fast light curing reaction rate, high hardness and tensile strength after curing, high gloss of the film layer, and excellent chemical corrosion resistance. Based on FDAs ongoing safety review of scientific evidence, the available information continues to support the safety of BPA for the currently approved uses in food containers and packaging. [28][29][30] Subsequent work found that it bound to estrogen receptors tens of thousands of times more weakly than estradiol, the major natural female sex hormone. Developmental treatment with bisphenol A or ethinyl estradiol causes few alterations on early preweaning measures. The oligomers may vary in molecular weight from 340 and higher. BPA is one of the most thoroughly tested chemicals in use today and has a safety track record of more than 50 years. Properties form viscous liquid Quality Level 100 composition Epoxide equivalent weight, 172-176 BPA can also be found in breast milk. People are generally exposed to minute levels of BPA, mostly from the ingestion of food or beverages that have been in contact with materials manufactured with BPA. Bisphenol-A, commonly abbreviated as BPA, is an organic compound with the chemical formula (CH 3) 2 C (C 6 H 4 OH) 2 belonging to the group of diphenylmethane derivatives and bisphenols, with two hydroxyphenyl groups. [98] Despite its short half-life and non-bioaccumulating character, the continuous release of BPA into the environment causes continuous exposure to both plant[104] and animal life. If you are giving a presentation about an environmental health topic or Poly(Bisphenol-A-co-epichlorohydrin) (PBE) is an epoxy based resin that is a phenoxy polymer derived from bisphenol A and epichlorohydrin. [11]. Alternatively, and to a much lesser extent, BPA may be ethoxylated and then converted to its diacrylate and dimethacrylate derivatives (bis-EMA, or EBPADMA). This allows exposure to be easily determined by urine testing, facilitating convenient biomonitoring of populations. The manufacturing of epoxy resins and vinyl ester resins account for 25-30% of BPA use. Polym Adv Technol 2009; 20: 194-208. . 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. These may be incorporated at low levels in vinyl ester resins to change their physical properties[45] and see common use in dental composites and sealants.[46][47]. Reprod Toxicol. [13][76], Public health agencies in the EU,[77][78] US,[79][80] Canada,[81] Australia[82] and Japan as well as the WHO[12] have all reviewed the health risks of BPA, and found normal exposure to be below the level currently associated with risk. Epoxy Composites: Additives for High Performance, Epoxy Resins: A to Z Technical Review of Thermosetting Polymer, Synthesis of Epoxy Monomer from Bisphenol A and Epichlorohydrin, Be the first to comment on "Epoxy Resins: A to Z Technical Review of Thermosetting Polymer", carboxyl-terminated butadiene acrylonitrile copolymer (CTBNs), Powdered metals to improve electrical and thermal conductivity, Silica for cost reduction, and strength enhancement, Talc and calcium carbonate cost reduction, Carbon and graphite powders to increase lubricity, Particle characteristics (size, share, surface area), Extremely strong and good flexural strength, The hardener and the temperature determine epoxy resin cure time, Resistant to wear, cracking, peeling, corrosion and damage from chemical and environmental degradation, Has a bonding strength of up to 2,000 psi, Generally, costs slightly less than epoxy resin, Off-gases VOCs and has strong, flammable fumes, Bonding strength of polyester resin is generally less than 500 psi, Once cured, polyester resin is water permeable, meaning water can pass through it eventually, Better adhesive properties (the ability to bond to the reinforcement or core), Superior mechanical properties (particularly strength and stiffness), Improved resistance to fatigue and micro cracking, Reduced degradation from water ingress (diminution of properties due to water penetration), Increased resistance to osmosis (surface degradation due to water permeability), Natural oil-based (soybean, linseed, castor). Food Additives & Petitions. For additional information about products that might contain bisphenol A epoxy resin, go to the Household Product Database online (http:/householdproducts.nlm.nih.gov) at the . The studies reviewed were published or available from November 1, 2009 to July 23, 2013. Polycarbonate plastic provides the benefit of long-lasting transparency and durability in new, design-inspired LED lighting in vehicles. It belongs to the phenol class of aromatic organic compounds. Information about this expert consultation and the report of the meeting is available from the WHO web site. Toxicol Appl Pharmacol. We provide Bisphenol A epoxy resin safety data sheet view and download for free at Echemi.com. [26] The utilization of BPA further expanded with discoveries at Bayer and General Electric on polycarbonate plastics. The study orally dosed pregnant rodents with 100-1000 times more BPA than people are exposed to through food, and could not detect the active form of BPA in the fetus 8 hours after the mother's exposure. Bisphenol A can leach into food from the protective internal epoxy resin coatings of canned foods and from consumer products such as polycarbonate tableware, food storage containers, water bottles, and baby bottles. Polycarbonate is strong and durable, but over time it may break down from over use at high temperatures. It is classified as a bisphenol, and a close molecular analog of Bisphenol A (BPA). It is prepared by the reaction of two equivalents of phenol with one equivalent of acetone. . 08-5994, September 2008. The degree to which BPA leaches from polycarbonate bottles into liquid may depend more on the temperature of the liquid or bottle, than the age of the container. Epoxy Resin Raw Material CAS 106-89-8 Epichlorohydrin 99.9%Min Epichlorohydrin Price, Find Details and Price about Bisphenol-a-Co-Epichlorohydrin 106-89-8 from Epoxy Resin Raw Material CAS 106-89-8 Epichlorohydrin 99.9%Min Epichlorohydrin Price - Shanghai Guanru Chemical Co., Ltd. Product. Make any industrial chemical reactions run smoothly with the organic intermediate compounds available at Alibaba.com's chemical store. Chemical Economics Handbook. BPA is a structural component in polycarbonate beverage bottles. Furthermore, composite . Many of these studies addressed how the body disposes of or metabolizes BPA. These materials are much more common but their BPA content will be low. Chemical name (IUPAC): 4,4'-Isopropylidenediphenol, oligomeric reaction products with 1 -chloro-2,3-epoxypropane, esters with acrylic acid . The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely. The chemical formula is (CH 3 ) 2 C(C 6 H 4 OH) 2. These chemicals are commonly used to form industrial epoxy resins, plastics, and flame retardants. The conclusion is not based simply on the number of studies, but more importantly on their quality and scientific value. 1675-54-3 Chemical Name: BISPHENOL A DIGLYCIDYL ETHER RESIN CBNumber: CB3749115 Molecular Formula: C21H24O4 Molecular Weight: 340.41 MDL Number: MFCD00080480 MOL File: 1675-54-3.mol MSDS File: SDS Modify Date: 2022-12-30 16:20:48 Request For Quotation BISPHENOL A DIGLYCIDYL ETHER RESIN Properties SAFETY Federal government websites often end in .gov or .mil. On this Wikipedia the language links are at the top of the page across from the article title. Epoxy resins are made by reacting epichlorohydrin (ECH) and bisphenol A to produce a different chemical substance called bisphenol A diglycidyl ether (also known as BADGE or DGEBA). 25085-99-8) Suppliers Limit companies to: Worldwide USA China India EMAIL INQUIRY to 13 suppliers BOC Sciences | Address: Ramsey Road, Shirley, New York 11967, USA https://www.bocsci.com | Send Inquiry | Phone: +1- (631)-485-4226 BOC Sciences is a brand of BOCSCI Inc. BPA has also been found to act as an agonist of the GPER (GPR30). Dont microwave polycarbonate plastic food containers. Because of these attributes, polycarbonate is used in a wide variety of common products including digital media (e.g., CDs, DVDs), electrical and electronic equipment, automobiles, sports safety equipment, reusable food and drink containers, and many other products. For more chemical safety facts, follow us on social media. Toxicol Sci. FDA continues to review the available information and studies on BPA. The ACC petition demonstrated, from publicly available information and information collected from industry sources, that the use of polycarbonate resins in baby bottles and sippy cups had been abandoned. Theres a potential for harm or injury in nearly every activity we engage in whether its when we cross a street, ride in an automobile, or play in a baseball game. 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