Patent ID: 9738783
Date: 2017-08-22
CPC Classifications: C08G,C08J,C08L

Claim:
1. A curable composition comprising: a) an epoxy mixture comprising i) a first epoxy component comprising an epoxy phenol novolac having an epoxide equivalent weight in the range of 170 to 200 and an average functionality of from 4.2 to 4.8 epoxy groups per molecule, wherein the first epoxy component comprises less than 5 weight percent of 2-functional monomers, in the range of from 15 weight percent to 20 weight percent of 3-functional monomers, in the range of from 10 weight percent to 20 weight percent of 4-functional monomers, in the range of from 10 to 20 weight percent of 5-functional monomers, and in the range of from 50weight percent to 60 weight percent of 6-functional monomers, based on the total weight of the first epoxy component; and ii) a second epoxy component comprising an epoxy resin having monomers with an average functionality of at least 2; wherein the first epoxy is present in the range of from 10 weight percent to 90weight percent and the second epoxy is present in the range of from 10 weight percent to 90 weight percent, based on the total weight of the epoxy mixture; and b) a hardener selected from the group consisting of aliphatic amines, modified aliphatic amines, cycloaliphatic amines, modified cycloaliphatic amines, amidoamines, dicyanopolyamide, polyamide, tertiary amines and aromatic amines.