Patent ID: 8608899

Claim:
Heat-curing epoxy resin composition comprising: a) at least one epoxy resin A with more than one epoxy group per molecule on the average; b) at least one curing agent B for epoxy resins which is activated by elevated temperature; c) at least one accelerator C of formula (I) where: R 1 stands for an n-valent aliphatic, cycloaliphatic, or araliphatic radical with at least one hetero atom; R 1 does not contain a biuret, isocyanurate, urethane, uretdione, or diuretdione group; R 2 and R 3 either each independently stand for an alkyl group or an aralkyl group, which optionally is substituted or has a hetero atom; or together stand for a divalent aliphatic radical with 3 to 20 C atoms that is part of an optionally substituted heterocyclic ring with 5 to 8 ring atoms; and n stands for a number from 1 to 10; and d) optionally at least one toughener D.