SELF-ADHERING CURABLE SILICONE ADHESIVE COMPOSITIONS AND PROCESS FOR MAKING THEREOF

摘要

A self-adhering curable silicone adhesive composition comprising: (A) an alkenyl substituted organopolysiloxane containing on average at least 0.1 alkenyl groups per molecule; (B) an organohydrogenpolysiloxane containing on average at least 2 silicon-bonded hydrogen atoms per molecule in an amount that the molar ratio of the total number of the silicon-bonded hydrogen atoms of component (B) to the total quantity of all alkenyl radicals of component (A) is less than 1.3:1; (C) a hydrosilylation catalyst; (D) an adhesion promoter; and (E) an adhesion catalyst in the form of microscopic particles comprising: (a) a thermally activated semi-crystalline polymer, and (b) at least one organometallic condensation catalyst having a metal M wherein the organometallic condensation catalyst is either admixed or encapsulated with the thermally activated semi-crystalline polymer. A process for making the adhesion catalyst (E).