| abstract |
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 n A) a polyol component containing n 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 α,β-unsaturated mono- or di-carboxylic acids having 3 to 8 carbon atoms, or their anhydrides, and n 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 n B) 1 to 70 wt. %, based on the resin solids content of the aqueous dispersion, of one or more blocked polyisocyanates, n and physically curing the dispersion to form a coating. |