Branched polymer containing silyl groups, a process for the...

Details Branched polymer containing silyl groups, a process for the... Branched polymer containing silyl groups, a process for the...

C - Chemistry, Metallurgy

08

F

117/184, 400/720

C08F 230/08 (2006.01) C08F 220/00 (2006.01) C09D 143/04 (2006.01)

Patent

CA 1290089

Abstract of the disclosure A branched polymer containing silyl groups, a pro- cess for the preparation thereof, coating agents based on the polymer, and the use thereof. The invention relates to polymers containing silyl groups, the silyl groups being introduced into the poly- mer through ethylenically unsaturated monomers of the gen- eral formula Image (a) where R1 = alkyl, aryl, acyl or aralkyl having 1 to 10 carbon atoms, R2 = an organic radical having a polymerizable double bond, X = a hydrolyzable group, and n = 1, 2 or 3. The polymers can be obtained by copolymerization of a) 0.1 to 40% by weight of the silane monomers (a), b) 5 to 30% by weight, preferably 8 to 25% by weight, of monomers containing at least 2 polymerizable, ethyl- enically unsaturated double bonds, and c) 30 to 90% by weight of ethylenically unsaturated mono- mers without groups containing active hydrogen. The invention also relates to moisture-hardening coating agents based on the polymers containing silyl groups. The coating agents are suitable, in particular, for automobile repair paintwork.

546383

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