Patent ID: 8062467

Claim:
A two-component adhesive K, consisting of: a component K 1 and a component K 2 , wherein: (a) component K 1 comprises: at least one epoxy resin A having more than one epoxy group per molecule on average; at least one epoxy adduct B, wherein each epoxy adduct B has more than one epoxy group and more than one hydroxyl group per molecule on average; at least one product F of a reaction between an epoxy adduct B and a compound C with at least two isocyanate groups; and at least one curing agent D for epoxy resins, which is activated by elevated temperature; and (b) component K 2 comprises: at least one compound E with at least two isocyanate groups; wherein: epoxy adduct B is an epoxy adduct B 1 obtained from at least one dicarboxylic acid and at least one diglycidyl ether, and is optionally combined with an epoxy adduct B 2 , obtained from at least one bis(aminophenyl)sulfone isomer or at least one aromatic alcohol and at least one diglycidyl ether, compound C is a polyurethane prepolymer C 2 having isocyanate groups, which is synthesized from at least one of polyisocyanate C 1 and from at least one polyol, the isocyanate groups of C 1 are in stoichiometric excess relative to the hydroxyl groups of the polyol such that the resulting polyurethane prepolymer C 2 , after reaction of all the hydroxyl groups of the polyol, has a free isocyanate group content from 0.5 to 5 wt. % relative to the total polyurethane prepolymer C 2 , and the ratio of K 1 and K 2 is such that the OH/NCO ratio is >2:1.