Patent ID: 6890662
Filing Date: 2005-05-10
Classification: C08G,C08K,C08L,H01B,Y10T

Abstract:
1. An anti-tracking silicone rubber composition comprising (A) 60 to 99 parts by weight of an organopolysiloxane gum having an alkenyl content of 0.001 mol % to 2 mol %, (B) an organopolysiloxane gum having an alkenyl content of more than 2 mol % to 20 mol %, the amount of components (A) and (B) combined being 100 parts by weight, (C) 5 to 100 parts by weight of microparticulate silica having a specific surface area of at least 50 m (D) platinum or a platinum compound in an amount to give 1 to 1,000 ppm of platinum atoms based on the total weight of components (A) and (B), (E) 0.01 to 5 parts by weight of an organosilicon compound containing a nitrogenous organic group and an unsaturated hydrocarbon group and/or a benzotriazole, (F) a curing agent in an amount sufficient to cure the composition, and (G) 0.01 to 5 parts by weight of a phenyl group-containing silicone oil.