Patent ID: 6875806
Filing Date: 2005-04-05
Classification: C08G,C08K,C08L,Y10T

Abstract:
1. A room temperature curable organopolysiloxane composition comprising (A) 100 parts by weight of a diorganopolysiloxane end-capped with a hydroxy or alkoxy group and having a viscosity of 100 to 500,000 mPa·s at 25° C., (B) 0.1 to 30 parts by weight of a silane compound having the following general formula (3): wherein R 2 is C 1-3 alkyl, vinyl, or phenyl, X is alkoxyl, alkenyloxy or ketoxime group, and b is 0 or 1, or a partial hydrolyzate thereof as a crosslinking agent, (C) 50 to 300 parts by weight of an aluminum hydroxide powder surface treated with at least one compound having the general formula (4): wherein R 3 is an ethyl group and Y is a C 1-3 alkoxy group, and having an average particle size of up to 50 μm, and (D) platinum or a platinum compound in an amount of 1 to 200 ppm calculated as platinum metal based on the weight of component (A).