Film-forming organopolysiloxane composition.

摘要

A film-forming organopolysiloxane composition is disclosed which imparts an excellent releaseability and lubricity to the surface of various types of rubber materials. The composition comprises a solvent dispersion of (a) 50 to 90 weight percent of a block organopolysiloxane copolymer; (b) 2 to 50 weight percent of a compound selected from the group consisting of an organosilane or a partial hydrolyzate thereof; (c) 4 to 40 weight percent of a mixture an epoxy group-containing organoalkoxysilane and an alkenyl group-containing organoacetoxysilane in a weight ratio of 1:9 to 9:1 or a condensation-reaction product thereof; (d) 0.1 to 10 weight percent of an hydroxy or alkoxy terminated diorganopolysiloxane; and (e) 0.1 to 10 weight percent of a condensation-reaction catalyst. m