THERMOSETTING RESIN COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a thermosetting resin composition that has heat resistance and UV resistance in combination with high refractive index, has improved thermal shock resistance by virtue of a low elastic modulus and high elongation and is excellent in reliability as a sealing material for LED.SOLUTION: The thermosetting resin composition comprises (A), (B) and (C) as given below: (A) a thermosetting resin which is a reaction product of a silsesquioxane having an SiH group with an organopolysiloxane having two alkenyl groups and has an SiH group and an alkenyl group; (B) a linear organopolysiloxane compound having an SiH group each at both terminals; and (C) a Pt catalyst.SELECTED DRAWING: None