THERMOSETTING RESIN COMPOSITION CONTAINING POLYHYDRIC ALCOHOL COMPOUND, ACID ANHYDRIDE COMPOUND AND THERMOSETTING RESIN AND OPTICAL SEMICONDUCTOR DEVICE USING THE THERMOSETTING RESIN COMPOSITION AS ENCAPSULATION MATERIAL OR REFLECTOR

摘要

PROBLEM TO BE SOLVED: To provide a thermosetting resin composition capable of sufficiently increasing glass transition temperature of a cured article, less in volatility, less in coloration to the cured article and long in pot life.SOLUTION: (1) There is provided a thermosetting resin composition containing (A) a polyhydric alcohol compound having 3 or more hydroxyl groups, (B) an acid anhydride compound and (C) a thermosetting resin. (2) There is provided the thermosetting resin composition, where the (A) polyhydric alcohol compound having 3 or more hydroxyl group is cyanuric acid tris(hydroxyalkyl), the acid anhydride (B) is one or more compound selected from trimellitic anhydride, cyclohexane tricarboxylic acid, pyromellitic anhydride, hexahydro phthalic anhydride, hydrogenated pyromellitic acid or methylhexahydro phthalic anhydride and the thermosetting resin is an epoxy resin.SELECTED DRAWING: None