Patent ID: 9034671
Filing Date: 2015-05-19
Classification: C08G,C08K,H01L

Abstract:
1. A method for preparing a light-emitting device comprising the first step of reacting (A) a triazine derived epoxy resin selected from the group consisting of tris(2,3-epoxypropyl) isocyanurate and tris(a-methylglycidyl) isocyanurate with (B) an acid anhydride 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 (C) an antioxidant thereby obtaining a solid reaction product, and grinding the solid reaction product, the second step of mixing a solid material in ground resulting from the first step with (D) a curing catalyst, (E) a reflective member, and (F) an inorganic filler, the third step of molding a thermosetting epoxy resin composition resulting from the first and second steps in a mold with leads arranged in place by a transfer molding technique, and the fourth step of disposing a light-emitting element on the leads on a cured product of the thermosetting epoxy resin composition resulting from the third step.