Patent ID: 6723803
Filing Date: 2004-04-20
Classification: C08G,C09J

Abstract:
A flexible epoxy adhesive consisting of a combination of the following components:(a) at least one epoxide resin having a hardness not exceeding a durometer Shore D reading of 45 when cured with a stoichiometric amount of diethylene triamine, said epoxide resin being selected from the group consisting of the diglycidyl ether of 4,4-butanediol, the diglycidyl ether of neopentyl glycol, the diglycidyl ether of cyclohexane dimethanol, the diglycidyl ether of polyoxypropylene glycol, and the polyglycidyl ether of an aliphatic polyol; and (b) about 42-100 parts by weight of at least one latent epoxy resin curing agent per 100 parts by weight of resin, said latent epoxy resin curing agent comprising a dihydrazide compound, wherein said combination is rheologically stable at room temperature, cures at about 100-125Â° C., and has a durometer Shore A of less than 95 upon cure to provide a flexible and reworkable epoxy bond.