CURABLE COMPOSITION, CURED MATERIAL, METHOD FOR PRODUCING THE CURED MATERIAL AND LIGHT EMITTING DIODE SEALED WITH THE CURED MATERIAL

摘要

PROBLEM TO BE SOLVED: To obtain a curable composition having uniformity, proper viscosity and excellent curability. SOLUTION: This curable composition comprises (A) a compound composed of an organic skeleton containing at least two carbon-carbon double bonds having reactivity with a SiH group in one molecule, (B) a silicon compound containing at least two SiH groups in one molecule, (C) a hydrosilylation catalyst and (D) a curing retarder as essential components. In the curable composition, part of the carbon-carbon double bonds having reactivity with the SiH group of the component (A) is reacted with part of the SiH group of the component (B) by hydrosilylation reaction and the viscosity of the composition is 20-120 poises.