Silicone primer composition

Details Silicone primer composition Silicone primer composition

C - Chemistry, Metallurgy

08

J

400/5307, 402/9

C08J 5/12 (2006.01) C09D 183/04 (2006.01) C09D 183/06 (2006.01)

Patent

CA 1244182

SILICONE PRIMER COMPOSITION Abstract A primer composition for heat curable silicone rubber compositions has been developed which provides adhesion to various synthetic rubbers, plastics, and inorganic materials. The primer composition is composed of three components. Component (I) consists of component (A) or (B). Component (A) consists of an organosilicon compound containing at least one epoxy group-containing monovalent hydrocarbon group, and at least one silicon- bonded lower alkenyl group or silicon-bonded hydrogen atom in each molecule. Component (B) consists of a mixture of (a) an organosilicon compound which possesses silicon-bonded hydroxyl and silicon-bonded lower alkenyl or silicon-bonded hydrogen, and (b) an organotrialkoxy- silane containing at least one epoxy group-containing monovalent hydrogen group. Component (II) comprises a trialkoxysilane or its partial hydrolysis product. Component (III) comprises an organotitanate ester.

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