C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
117/185, 400/532
C08L 83/07 (2006.01) C09D 183/04 (2006.01) C09D 183/07 (2006.01)
Patent
CA 2019254
A coating composition for coating thin-layer substrates, containing a Si-bonded organopolysiloxane (A) containing unsaturated hydrocarbon radicals and having a viscosity of 50 to -10 7 mPa.s, an organopolysiloxane (B) containing at least three hydrogen-silicon atoms, a noble metal catalyst (C) and an additive (D) which retards the addition reaction at room temperature, wherein polymer (A) contains a number of trifunctional and/or tetrafunctional branch points T n and/or Q n' and a number os Si atoms X m containing unsaturated hydrocarbon radicals, in which n is 0 to 10 and n' is 0 to 10 and the sum of n + n' is 1 to 10, and wherein (a) n + 1 > = m > = 2 in the case of a T-containing organopolysiloxane; (b) (2n' + 1) > = m > = 2 in the case of a Q-containing organopolysiloxane; and (c) [[(n + 1) + (2n' + 1)] - 1] > = m > = 2 in the case of a Q- and T-containing organopolysiloxane, and the terminal groups of polymer (A) formed by triorganosiloxy units containing at least one unsaturated hydrocarbon radical.
de Montigny Armand
Steinbach Hans-Horst
Fetherstonhaugh & Co.
Ge Bayer Silicones Gmbh & Co. Kg
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