POLYSILOXANE MOULDING COMPOSITIONS

摘要

In a polysiloxane molding composition which in the presence of water crosslinks to an elastomer and which comprises (A) an alpha , omega -dihydroxyorganopolysiloxane with a viscosity of about 500 to 2,000,000 cP, (B) a crosslinking agent, and (C) a reinforcing filler, the improvement which comprises including therein in about 0.1 to 10% by weight a silicon compound containing at least 3 alkoxy groups and preferably of the formula Rn Si(Alkoxy)4-n in which R is alkyl with 1 to 10 carbon atoms, Alkoxy has 1 to 4 carbon atoms, and n is 0 or 1, whereby the elastomer ultimately produced exhibits improved direct adhesion to various substrates.