Patent ID: 6617038
Filing Date: 2003-09-09
Classification: C08K,Y10T

Abstract:
An electromagnetic wave absorbing silicone rubber composition comprisinga soft magnetic powder selected from the group consisting of iron and iron alloys in an amount of 5 to 80% by volume of the entire composition, a heat conductive powder selected from the group consisting of metals, metal oxides, metal nitrides, and silicon carbide in an amount of 10 to 85% by volume of the entire composition, and a surface treating agent in an amount of 0.1 to 10 parts by weight per 100 parts by weight of said soft magnetic powder, said surface treating agent being selected from the group consisting of (a) an organopolysiloxane containing at least one silicon atom-bonded alkoxy radical, silicon atom-bonded hydroxyl radicals or functional organic radical in a molecule, (b) a titanate coupling agent, and (c) an aluminum coupling agent.