Microparticle catalysts for hydrosilylation reactions and thermosetting silicone compositions containing said catalyst

摘要

A microparticle catalyst for hydrosilylation reactions which contains microparticles of an average particle diameter of 0.1 to 20 mu m made of a metallic catalyst for hydrosilylation reactions; a disiloxane having the general formula (R1R2ArSi)2O, wherein, R1 is an alkenyl group, R2 is a monovalent hydrocarbon group and Ar is an aryl group; and a resin having a glass transition temperature of 40 DEG to 200 DEG C. and thermosetting silicone composition containing the microparticle catalyst.