| abstract |
(57) [Abstract] [Purpose] To provide a resin composition for producing an optical semiconductor, which has little luminance deterioration, high heat resistance, and high reliability. [Structure] 1) Epoxy resin 2) Hardener 3) Resin composition containing a reaction product of an epoxy resin and a compound having a carboxyl group obtained by half-esterifying an organopolysiloxane containing an alcoholic hydroxyl group with an acid anhydride . |