Patent ID: 9309354
Filing Date: 2016-04-12
CPC Classification: B29C,B29K,C08G,C08K,C08L

Claim Text:
1. A two-component curable epoxy resin system, comprising I. an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol that has an epoxy equivalent weight of up to about 250 and contains no more than 3% by weight of monohydrolyzed resin species; II. a hardener mixture that has an amino hydrogen equivalent weight of from 25 to 90 and contains at least 90% by weight of a mixture of (i) from 5 to 75% of the combined weight of (i), (ii) and (iii) of one or more compounds that have at least two primary and/or secondary aliphatic or cycloaliphatic amino groups and which have no phenolic groups; (ii) from 10 to 95% of the combined weight of (i), (ii) and (iii) of one or more aminophenol compounds that contain one or more primary and/or secondary aliphatic or cycloaliphatic amino groups and at least one phenolic group and (iii) from 0 to 50% of the combined weight of (i), (ii) and (iii) of one or more phenolic compounds that contain two or more phenolic groups and do not contain primary or secondary amino groups; components I and II being present in amounts sufficient to provide from 1.05 to 1.35 equivalents of aliphatic or cycloaliphatic amine hydrogens per equivalent of epoxide groups provided by the epoxy resin component.