Patent attributes
Primer compositions comprising(A) organopolysiloxanes having at least four ethylenically unsaturated radicals R1 per molecule,(B) organosilane or organocarbosilane compounds having at least one hydrolyzable group selected from —OR2, —NR22, R2—C(═O)—N(R2)— or —O—N═CR22, where R2 is an optionally substituted alkyl group,(C) fillers, such as reinforcing fillers, silicone resins or hydrolysis condensates of at least one organosilicon compound (B) defined above, and(D) solvents, such as organic solvents of low molecular weight cyclic or linear polyorganosilicon compounds, provide high adhesive strength between a variety of substrates and silicone rubber compositions, such that composites of improved properties may be produced.