Patent ID: 7135513

Claim:
A process for reducing formation of aerosol during coating of substrates with a crosslinkable silicone composition, comprising adding to said composition at least one antimisting additive which is a branched organosilicon compound comprising a) per molecule at least one unit of the formula where A is a radical of the formula —(OSiR 1 R 2 ) 2 —(OSiR 2 ) x —Y—SiR 2 O 1/2 , R each independently is a monovalent, aliphatically saturated hydrocarbon radical having 1 to 12 carbon atoms per radical or an aromatic hydrocarbon radical having 6 to 12 carbon atoms per radical, R 1 is a radical of the formula OSiR 2 —Y—SiR 2 O 1/2 , R 2 has the definition of R, R 1 or R′, where R′ is a monovalent, aliphatically saturated hydrocarbon radical having from 1 to 12 carbon atoms per radical or an aromatic hydrocarbon radical having 6 to 12 carbon atoms per radical, and contains one or more non-adjacent heteroatoms selected from the group consisting of O, S, N, Si and Ti, Y is a divalent hydrocarbon radical of the formula —CH 2 CHR 5 (—R 4 ) v —, R 4 is a divalent hydrocarbon radical having 1 to 10 carbon atoms per radical or is a chemical bond if v is 0, R 5 is a hydrogen atom or has the definition of R, v is 0 or 1, x each independently 0 or 1, and z each independently 0 or 1, and B has the definition of A, R, or R′ with the proviso that B is R or R′ if x is 0, (b) per molecule at least one unit of the formula O 1/2 SiR 2 R 3 (II), where R 3 is an aliphatically unsaturated hydrocarbon radical of the formula H 2 C═CR 5 (—R 4 ) v —, (c) optionally units of the formula O 1/2 SiR 3 (III), (d) optionally units of the formula SiR 2 O (IV), and (e) optionally units of formula O 1/2 SiR 2 —Y—SiR 2 O 1/2 (V), where R is as defined above.