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1. WO2022007906 - METHOD FOR CATALYZING DEGRADATION OF ANHYDRIDE-CURED EPOXY RESIN

Publication Number WO/2022/007906
Publication Date 13.01.2022
International Application No. PCT/CN2021/105298
International Filing Date 08.07.2021
IPC
C08J 11/28 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
11Recovery or working-up of waste materials
04of polymers
10by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
18by treatment with organic material
28by treatment with organic compounds containing nitrogen, sulfur or phosphorus
C08J 11/26 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
11Recovery or working-up of waste materials
04of polymers
10by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
18by treatment with organic material
22by treatment with organic oxygen-containing compounds
26containing carboxylic acid groups, their anhydrides or esters
C08L 63/00 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
63Compositions of epoxy resins; Compositions of derivatives of epoxy resins
Applicants
  • 中国科学院山西煤炭化学研究所 INSTITUTE OF COAL CHEMISTRY, CHINESE ACADEMY OF SCIENCES [CN]/[CN]
Inventors
  • 邓天昇 DENG, Tiansheng
  • 张宁 ZHANG, Ning
  • 侯相林 HOU, Xianglin
Agents
  • 太原申立德知识产权代理事务所(特殊普通合伙) TAIYUAN SHENLIDE INTELLECTUAL PROPERTY AGENCY(SPECIAL ORDINARY PARTNERSHIP)
Priority Data
202010652768.208.07.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR CATALYZING DEGRADATION OF ANHYDRIDE-CURED EPOXY RESIN
(FR) PROCÉDÉ DE CATALYSE DE LA DÉGRADATION D'UNE RÉSINE ÉPOXYDE DURCIE PAR ANHYDRIDE
(ZH) 一种催化酸酐固化的环氧树脂降解的方法
Abstract
(EN) A method for catalyzing degradation of an anhydride-cured epoxy resin, comprising: formulating an anhydride-cured epoxy resin, a reaction solvent, and an organic acid catalyst into a degradation system, and performing a degradation reaction; after completing degradation, adding hot water to the system, fully dissolving, and filtering; and evaporating and recycling the filtrate to obtain a reaction solvent, a curing agent, and an organic acid catalyst, a filter cake being an organic phase epoxy resin degradation product.
(FR) Procédé de catalyse de la dégradation d'une résine époxyde durcie par anhydride, comprenant : la formulation d'une résine époxyde durcie par anhydride, un solvant de réaction et un catalyseur acide organique dans un système de dégradation, et la réalisation d'une réaction de dégradation ; après l'achèvement de la dégradation, l'ajout d'eau chaude au système, la dissolution complète et le filtrage ; et l'évaporation et le recyclage du filtrat pour obtenir un solvant de réaction, un agent de durcissement et un catalyseur acide organique, un gâteau de filtration étant un produit de dégradation de résine époxyde en phase organique.
(ZH) 一种催化酸酐固化的环氧树脂降解的方法,通过将酸酐固化的环氧树脂与反应溶剂、有机酸催化剂配制成降解体系,进行降解反应;降解完成后向体系中加入热水,充分溶解并过滤;滤液蒸出回收得到反应溶剂、固化剂和有机酸催化剂;滤饼为有机相环氧树脂降解产物。
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