RELEASE COATING COMPOSITIONS HAVING IMPROVED RELEASE FORSE PROFILES

摘要

A composition containing (A) a compound having at least one aliphatic unsaturation; (B) a cyclic organohydrogen-silicon crosslinking compound containing at least one silicon-bonded hydrogen atom (Sift) per molecule, prepared by a platinum catalyzed coupling reaction of a methylhydrogen cyclosiloxane, with a reactant containing aliphatic unsaturation, hydroxy functionalities, or a mixture of both; and (B1) a linear or branched acyclic organohydrogensilicon Crosslinking compound containing at least one silicon-bonded hydrogen atom per molecule. The composition can be used to prepare release coating compositions by adding (C) a platinum group metal-containing catalyst. Release coating compositions containing Components (B) and (B1) have better cure, better adhesion, and lower release forces, than release coating compositions containing only Component (B).