Patent ID: 9562149
Date: 2017-02-07
CPC Classifications: C08K,C08L,C09D

Claim:
1. A release coating composition comprising: a polyorganosiloxane (A) having alkenyl groups; a crosslinking agent (B) having organohydrogensiloxane groups; a catalyst for the hydrosilylation reaction between (A) and (B); an anchorage additive for enhancing the adhesion of the composition to a polymer film substrate, characterised in that the anchorage additive is the reaction product of a fluid polyorganosiloxane (C) containing at least one alkenyl group and at least one silanol group with a hydrolysable silane (D) containing at least one epoxide group; and a filler present from 0 to 30% by weight of the release coating composition, wherein the release coating composition is free from a fluoroorganosilicone compound.