In approximate order of decreasing consumption, products generated from formaldehyde include urea formaldehyde resin, melamine resin, phenol formaldehyde resin, polyoxymethylene plastics, 1,4-butanediol, and methylene diphenyl diisocyanate. Usually an acidic catalyst is employed as a hardening agent. Our resins are adaptable to a wide variety of … The Waste Framework Directive aims to protect the environment and human health from the generation and management of waste and to improve efficient use of resources. For readability purpose, only non-confidential use descriptors occurring in more than 5% of total occurrences are displayed. Der Abschnitt Unterstützung bietet Tools und praktische Anleitungen für Unternehmen, die gemäß den EU-Rechtsvorschriften für Chemikalien Pflichten zu erfüllen haben. Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. disodium tetraborate EC no. In some applications a mixture of an aromatic sulfonic acid and a dior trichloroacetic acid is particularly effective. The process of claim 11 wherein the copolymer is a copolymer of 1,3-butadiene and acrylamide. No generally satisfactory means has been found to obtain the necessary uniform and stable dispersion of such emulsion copolymers in the liquid phenolic resole resin. Phenol-formaldehyde resin was developed as the first wholly synthetic polymer at the beginning of the 20 th century and was called Bakelite. 15. 215–540–4, is covered by three harmonisations: 005–011–00–4; 005–011–01–1 and 005–011–02–9), CLH information cannot be displayed in the InfoCard as the difference between the CLH classifications requires manual interpretation or verification. ECHA has no public registered data indicating whether or in which chemical products the substance might be used. Based on residual acrylamide monomer, the copolymer contained 77 wt. It is a white crystalline solid that is volatile.The molecule consists of a phenyl group (−C 6 H 5) bonded to a hydroxy group (−OH). The ‘Substance identity’ section is calculated from substance identification information from all ECHA databases. 12. Although a number of other rubber-modified phenol aldehyde resins have been described, liquid phenolic resole resin compositions containing a uniformly intermixed, compatible-rubbery copolymer of alkadiene and acrylamide monomers have not been described. Such a modified liquid phenol-formaldehyde resin composition is advantageously employed in the preparation of numerous resinous phenolic products having improved resiliency, flexibility, strength, and stability. 9003-35-4 - KXGFMDJXCMQABM-UHFFFAOYSA-N - Phenol-formaldehyde resin - Similar structures search, synonyms, formulas, resource links, and other chemical information. This substance is used in the following products: coating products and fillers, putties, plasters, modelling clay. Abstract. Component Compounds : CID 712 (Formaldehyde) CID 5360545 (Sodium) CID 996 (Phenol) … Warning! The EC Inventory is a combination of three independent European lists of substances from the previous EU chemicals regulatory frameworks (EINECS, ELINCS and the NLP-list). at room temperature is obtained. More information about CAS and the CAS registry can be found here. For a detailed overview on identified uses and environmental releases, please consult the registered substance factsheet. This substance is used in the following areas: formulation of mixtures and/or re-packaging and building & construction work. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment. InfoCards are updated when new information is available. The CLP Regulation makes sure that the hazards presented by chemicals are clearly communicated to workers and consumers in the European Union. plasters, cement), fabricated metal products, electrical, electronic and optical equipment and machinery and vehicles. Release to the environment of this substance can occur from industrial use: in the production of articles. However, liquid phenolic compositions are even more essential in the preparation of phenolic foams which require that the initial resole resin be rapidly and thoroughly mixed with a blowing agent and catalyst, and then generally transferred from the mixer to the final mold before appreciable foaming occurs. Also in the amounts normally present, the low molecular weight diol is not detrimental in the resin compositions. As a somewhat less active catalyst, an aromatic sulfonic acid or sulfonyl chloride such as p-toluenesulfonic acid or benzenesulfonyl chloride, is often used. Phenol/formaldehyde resins are strong and durable and relatively inexpensive, but are generally colored resins. Filed Nov. 4, 1963, Ser. Ziel der REACH-Verordnung ist es, den Schutz der menschlichen Gesundheit und der Umwelt vor den Risiken, die durch Chemikalien entstehen können, zu verbessern. Phenol, polymer with formaldehyde, sodium salt. This substance is used for the manufacture of: plastic products, mineral products (e.g. Phenoplaste (DIN-Kurzzeichen: PF) sind duroplastische Kunststoffe, die auf Basis von Phenolharzen durch Aushärtung hergestellt werden. Molecular Formula: C 7 H 7 NaO 2: Synonyms: 71342-95-5. percent polymerized butadiene and 20 wt. 1,880 phenol formaldehyde resin price products are offered for sale by suppliers on Alibaba.com, of which polymer accounts for 5%, adhesives & sealants accounts for 3%. Willkommen auf der Website der ECHA! A phenolic foam prepared in an identical manner but without addition of the glycol copolymer additive gave a phenolic foam having a density of 6.0 pounds per cubic foot and a flexibility of 0.2 inch. In summary, the present invention relates to an improved liquid phenol-formaldehyde resole resin composition having incorporated therein a minor amount of an alkadiene-acrylamide copolymer prepared by addition polymerization in a liquid diol medium. Preferably, however, low boiling liquids, such as aliphatic hydrocarbons, fluorocarbons, or ethers, having a boiling point in the range from about 20 to 100 C. are used to obtain lower density phenolic foams. Details of dossier compliance checks and testing proposal evaluation. inside a watch) or with very low concentrations considered not to pose risks to human health or the environment. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance): Die ECHA bietet zahlreiches Online-Material in Ihrer Sprache an, ein Teil dieser Seite liegt jedoch nur auf Englisch vor. For each foam several test specimens are used to obtain an average value of this flexibility. This is why novolacs (F:P <1) do not harden without the addition of a crosslinking agents, and why resoles with the formula F:P >1 will. percent polymerized butadiene. EC Inventory, C&L Inventory, Substance Evaluation - CoRAP, Registration dossier, Pre-Registration process, Other, Liste der in Frage kommenden Stoffe in Erzeugnissen, Veröffentlichung von Informationen aus Dossiers, Prüfungen auf Erfüllung der Anforderungen, Identifizierung besonders besorgniserregender Stoffe, Empfehlung für die Aufnahme in das Verzeichnis der zulassungspflichtigen Stoffe, Ausarbeitung eines Beschränkungsvorschlags, Erste Schritte in Bezug auf die EU-Rechtsvorschriften für Chemikalien, Harmonisierte Einstufung und Kennzeichnung (CLH), Alternative chemische Bezeichnung bei Gemischen, Die Rolle der Prüfung in der CLP-Verordnung. 1. at 25 C. with a solids content of about 20 to 40 weight percent. Molecular formula. Information on applicable regulatory frameworks is also automatically generated and may not be complete or up to date. This substance is used in the following areas: building & construction work. Fisk and Meyer recommend in United States Patent 2,659,706 use of an immiscible hydrocarbon oil as a plasticizer to achieve a satisfactory blend of an uncured phenol-aldehyde novolac resin with a rubbery butadiene-acrylonitrile copolymer. If generated, an InChI string will also be generated and made available for searching. TABLE 1 [Phenolic casting resin] Resin B/A Copolymer 1 Flex Strength, 4-1 None 4, 300 4- 89/11 6, 400 4-3 75/25 7, 300. i ii CH2=CONHR wherein R is H or CH and R is H or C -C alkyl, in (C) A liquid diol selected from the group consisting of C -C alkylene glycols and liquid polyalkyleneoxydiols of the formula: wherein each a is 2 or 3 and n is a number such that the diol has a molecular weight of less than 650. The viscous liquid product is separated from the aqueous phase, treated to neutralize the catalyst, and then washed thoroughly with water. The preferred polymerization conditions and the time required to achieve the desired polymerization will, of course, depend upon the particular reactants and catalysts employed. The cell structure of this foam was quite irregular and the foam was considerably more brittle and fragile than the foam prepared from the modified resin containing the butadieneacrylamide copolymer. Unsere Website wird von Internet Explorer 7 (und älteren Versionen) nicht uneingeschränkt unterstützt. The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. About 40% of these are polymer, 15% are petroleum additives, and 13% are adhesives & sealants. The CAS number is the substance numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to substances registered in the CAS registry database. When this modified liquid phenol-formaldehyde resin composition is employed as an adhesive, greater flexibility and greatly improved bond strength are obtained. (B) A complementary amount of about 50-5 weight percent of an acrylamide monomer having the formula wherein each a is 2 or 3 and n is a number such that the diol has a molecular weight of less than 650. Die Grenzwerte berufsbedingter Exposition (OEL-Werte) basieren auf zwei Rechtsrahmen, die integraler Bestandteil des EU-Mechanismus zum Schutz der Gesundheit der Arbeitnehmer sind. 2. MORRIS LIEBMAN, Primary Examiner. We apologise for the inconvenience in the meantime. After discarding the aqueous phase, the pH of the liquid phenolformaldehyde resin was adjusted to between 5 and 7 with dilute caustic. Melamine Urea Phenol Formaldehyde Resins—for European OSB 3 qualification and particleboard Melamine Formaldehyde Resins. 4. The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. Significantly improved properties are obtained using as little as 1 weight percent, based on the phenolic resole resin, of a dispersion containing from 20 to 50 weight percent copolymer solids. Impurities or additives: When a specific critical property is calculated from industry data and where the majority of data submitters have indicated that the property relates to cases containing impurities and/or additives, then the respective critical property icon is modified with an asterisk (*). Each joint was then clamped securely and cured by heating overnight in an oven held at 75 C. The adhesive strength of the cured joints Was determined with an Instron test machine. A wide variety of phenol formaldehyde resin price options are available to you, such as synthetic resin and plastics, synthetic rubbers, and synthetic fibers. percent copolymer solids in ethylene glycol. Wichtige Ausgangsstoffe zur Herstellung der Harze sind Phenol und Formaldehyd. Additionally, if available, information on the use of the substance and how consumers and workers are likely to be exposed to it can also be displayed here. The deflection of the tip at the time of the break is then a measure of the flexibility of the test piece. Die ECHA organisiert Konsultationen, um Feedback von allen interessierten Kreisen einzuholen und wissenschaftliche Informationen auf möglichst breiter Ebene für die regulatorischen Verfahren zu sammeln. The phenolic resole composition of claim 1 wherein the liquid diol is diethylene glycol. Wie werden Mitteilungen des nachgeschalteten Anwenders eingereicht? When the desired polymerization has been obtained, the unreacted alkadiene is generally removed by evaporation to give a stable diol-copolymer dispersion which may be used directly without further treatment in the preparation of modified liquid phenolic resin compositions. The substance identifiers displayed in the InfoCard are the best available substance name, EC number, CAS number and/or the molecular and structural formulas. Die Verordnung über die vorherige Zustimmung nach Inkenntnissetzung (PIC-Verordnung) regelt die Aus- und Einfuhr bestimmter gefährlicher Chemikalien und erlegt Unternehmen, die diese Chemikalien in Nicht-EU-Länder ausführen möchten, Verpflichtungen auf. From the first resins others varieties have been developed and phenol-formaldehyde resins now designates a group of resins with varying properties made from different phenols and aldehydes. Alternate sources of phenolic compounds in-clude tannins, lignins, biomass pyrolysis products, and coal gasification products. 4-Phenylphenol. The resin cup was then placed in an oven held at about 85 C. After an hour the cured foam sample was removed. Usually stirring the two components together for a few minutes is adequate. blue (1) clear (1) colorless (13) red (1) white (4) yellow (3) Reaction Suitability. Mixtures of these alkylene glycols and polyalkyleneoxydiols can also be used. (C) A liquid diol selected from the group consisting of C C alkylene glycols and liquid polyalkyleneoxydiols of the formula: HO c n o H- wherein each a is 2 or 3 and n is a number such that the diol has a molecular weight of less than 650. If no EU harmonised classification and labelling exists and the substance was not registered under REACH, information derived from classification and labelling (C&L) notifications to ECHA under CLP Regulation is displayed under this section. 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