Patent ID: 8803159
Filing Date: 2014-08-12
Classification: C08G,C08K,H01L

Abstract:
1. A light-emitting device comprising a light-emitting element having an emission peak wavelength of 430 nm or longer, and a molded part on which the light-emitting element is disposed, the molded part being formed from a cured product of a thermosetting epoxy resin composition comprising an epoxy resin including a triazine derived epoxy resin as an essential component, wherein the thermosetting epoxy resin composition comprises a solid reaction product obtained by reacting the triazine derived epoxy resin as the epoxy resin of component (A) with an acid anhydride as component (B) in such a proportion as to provide an epoxy group equivalent/acid anhydride group equivalent ratio from 0.6 to 2.0 in the presence of triphenyl phosphite and/or 2,6-di-t-butyl-p-cresol as an antioxidant of component (C), and the solid reaction product contains a high molecular weight fraction having a molecular weight of more than 1500, a moderate molecular weight fraction having a molecular weight of 300 to 1500, and a monomeric fraction, as analyzed by gel permeation chromatography (GPC), wherein 20 to 70% by weight of the high molecular weight fraction, 10 to 60% by weight of the moderate molecular weight fraction, and 10 to 40% by weight of the monomeric fraction are present.