Patent ID: 8420216

Claim:
A thermosetting resin composition comprising: a resin (A) containing two or more carboxyl groups and having a polyurethane structure, a strongly basic nitrogen-containing heterocyclic compound having pKa of 10.0 to 14.0, as a curing accelerator (B), and a curing agent (C) which is a compound having an epoxy group which reacts with a carboxyl group, wherein the resin (A) containing two or more carboxyl groups and having a polyurethane structure is obtained by allowing a polyisocyanate compound (a), a polyol compound (b), a carboxyl group-containing dihydroxy compound (c), and a monohydroxy compound (d) and/or a monoisocyanate compound (e) to react with one another, wherein the monohydroxy compound (d) and the monoisocyanate compound (e) are end cappers, and wherein the polyol compound (b) and the carboxyl group-containing dihydroxy compound (c) are not the same.