C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 5/03 (2006.01) C08K 5/17 (2006.01) C08K 5/49 (2006.01) C08K 5/57 (2006.01) C09D 129/02 (2006.01) C09D 135/00 (2006.01) C09D 157/00 (2006.01) C09D 201/06 (2006.01)
Patent
CA 2047065
The present invention relates to powder coating compositions wherein the binder contains copolymers which are solid below 30°C, prepared from olefinically unsaturated compounds and have a weight-average molecular weight (M w) of 1500 to 75,000, a content of free hydroxyl groups of 0.2 to 6.0% by weight and a content of intramolecular carboxylic acid anhydride groups (calculated as C4H2O3) of 1 to 30% by weight.
Klussmann Henning
Kreuder Hans-Joachim
Wamprecht Christian
Zenner Armin
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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