C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 5/03 (2006.01) C08G 59/62 (2006.01) C09D 133/14 (2006.01) C09D 135/00 (2006.01) C09D 163/00 (2006.01)
Patent
CA 2068170
The present invention relates to coating compositions in pulverulent form which are solid below 30°C and liquid above 150°C and contain A) 10 to 99 parts by weight of a copolymer component containing at least one copolymer which is prepared from olefinically unsaturated compounds, has a weight average molecular weight of 1500 to 75,000 and contains in chemically bound form (i) 1 to 30% by weight of cyclic carboxylic acid anhydride groups (calculated as C4H2O3) and (ii) 0.3 to 10% by weight of epoxide groups (calculated as C2H3O), and B) 1 to 90 parts by weight of a polyol component containing at least one organic polyol having at least two hydroxyl groups per molecule, provided that for every anhydride group of component A) there are 0.1 to 10 hydroxyl groups of component B).
Kreuder Hans-Joachim
Pedain Josef
Wamprecht Christian
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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