| abstract |
An object of the present invention is to provide a cured product having high hardness, excellent heat resistance, UV resistance, strength and deflection, and capable of withstanding reflow mounting and heat cycle conditions. A curable resin composition and an epoxy silicone resin blended therein are provided. A thermosetting resin composition comprising an epoxy silicone resin, a curing agent, and a curing accelerator as essential components, and as the epoxy silicone resin, a linear polysiloxane having an alcoholic hydroxyl group at both ends, The hemiester (A2) having carboxyl groups at both ends obtained by the reaction of the acid anhydride, the alicyclic epoxy resin (A3) which is liquid at room temperature, the carboxyl group of (A2) and the epoxy group of (A3) An epoxy silicone resin obtained by reacting at a molar ratio of 1: 2 to 1:10 is used. [Selection figure] None |