Patent ID: 8133957
Filing Date: 2012-03-13
Classification: C08G,C08L

Abstract:
1. A resin composition for encapsulating an optical semiconductor element, comprising components (A), (B), (C), and (D) described below: (A) a branched silicone resin containing 2 to 6 epoxy groups, one or more (R (B) a curing agent, in such an amount that a content of epoxy reactive groups in the component (B) ranges from 0.4 to 1.5 moles per 1 mol of epoxy groups within component (A), (C) a curing catalyst, in an amount within a range from 0.01 to 3 parts by weight per 100 parts by weight of a combination of component (A) and component (B) and (D) a diepoxy carboxylate.