Branched polymer containing silyl groups, a process for the preparation thereof, coating agents based on the polymer, and the use thereof

Abstract

Abstract A branched polymer containing silyl groups, a process 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 polymer through ethylenically unsaturated monomers of the general formula <IMAGE> (a) wherein 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, ethylenically unsaturated double bonds, and c) 30 to 90% by weight of ethylenically unsaturated monomers 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.

Inventors

• 👤 Werner A. Jung
• 👤 Arno Schmitz

Bibliographic Details