C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 175/04 (2006.01) C08F 283/00 (2006.01) C08F 283/01 (2006.01) C08G 18/63 (2006.01) C08G 18/80 (2006.01) C09D 167/06 (2006.01) C09D 167/08 (2006.01) C09D 175/06 (2006.01)
Patent
CA 2280108
The present invention relates to a process for preparing a coated substrate by coating the substrate with an aqueous dispersion, which may be physically cured to form a light stable, elastic coating, containing A) a polyol component containing A1) 20 to 60 wt.%, based on the resin solids content of polyol component A), of a polyester resin containing 10 to 60 wt.%, based on the weight of the polyester resin, of one or more aliphatic, saturated or unsaturated monocarboxylic acids having 8 to 30 carbon atoms, and 0.4 to 5 wt.%, based on the weight of the polyester resin, of one or more radically polymerizable .alpha.,.beta.-unsaturated mono- or di-carboxylic acids having 3 to 8 carbon atoms, or their anhydrides, and A2) 40 to 80 wt.%, based on the resin solids content of polyol component A), of a polyacrylate, which is prepared in the presence of component A1), and B) 1 to 70 wt.%, based on the resin solids content of the aqueous dispersion, of one or more blocked polyisocyanates, and physically curing the dispersion to form a coating.
Blum Harald
Irle Christoph
Muller Heino
Petzoldt Joachim
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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