| abstract |
[PROBLEMS] To provide printing inks, adhesives, and coatings that are excellent in processing stability, adhesiveness, storage stability, heat resistance, flexibility, electrical insulation, and flux resistance, and are used around electronic materials such as printed wiring boards. Of a thermosetting resin composition suitable as an agent. A polyol compound (a) and a diisocyanate compound (b) are reacted to form a terminal hydroxyl group-containing urethane prepolymer (c), and the (c) and an alicyclic polybasic acid anhydride or aromatic are produced. By reacting the acid anhydride group-containing compound (d), which is a polybasic acid anhydride, to produce a carboxyl group-containing urethane ester resin (e), at least two epoxy groups in one molecule are combined with the (e). A carboxyl group formed by reacting the epoxy compound (f) with a side chain hydroxyl group-containing modified urethane ester resin (g), and further reacting the acid anhydride group-containing compound (d) with the (g). A thermosetting resin composition comprising a group-containing modified urethane ester resin (A). [Selection figure] None |