Patent ID: 7153913

Claim:
A process for reducing the formation of aerosol in a crosslinkable silicone coating composition, comprising adding to the coating composition, from 0.5 to 10 weight percent of a siloxane copolymer antimisting additive siloxane containing Si-bonded hydrogen atoms, prepared by reacting at least one compound (1) containing at least three aliphatic double bonds, of the formula R 2 (CR 3 ═CH 2 ) x (1) where R 2 is a trivalent or tetravalent hydrocarbon radical optionally containing one or more non-adjacent heteroatoms selected from the group consisting of oxygen, silicon and titanium, R 3 is a hydrogen atom or an alkyl radical having from 1 to 6 carbon atoms per radical, and x is 3 or 4, with at least one organosiloxane (2) having terminal Si-bonded hydrogen atoms, in the presence of a catalyst (3) which promotes the addition of Si-bonded hydrogen onto an aliphatic double bond, the ratio of Si-bonded hydrogen in the organosiloxane (2) to aliphatic double bond in organic compound (1) being from 1.3 to 10; and wherein the product is not subsequently equilibrated.