FIELD: chemistry.
SUBSTANCE: invention relates to non-aqueous compositions of coating materials. Non-aqueous coating composition comprising at least one component containing polyhydroxylic groups, extracted from polyacrylates polyols, mixtures thereof and copolymers of polyacrylates polyols, at least one component containing polyisocyanate groups, at least one catalyst for crosslinking alkoxysilyl units, for the reaction between the hydroxyl and isocyanate groups of the components, and at least one urethane additive (PF) which has at least one perfluoroalkyl group of the formula (I) wherein R1, R2 independently of one another, are H, F and/or CF3, but R1 and R2 both may not mean H, x is 1–20, and at least one silane group of formula (II) wherein G is a hydrolyzable group, X is an organic radical, R3 means alkyl, cycloalkyl, aryl or aralkyl, and s is 0–2, wherein the urethane additive (PF) is prepared by reacting 0.5 to 20 mol. % of the isocyanate groups originally present in the polyisocyanate (PI), with component (Ia), which has at least one perfluoroalkyl group of formula (I) and one group which is reactive with respect to isocyanate groups, and 10–99.5 mol. % of the isocyanate groups initially present in the polyisocyanate (PI) with a component (IIa) which has at least one silane group of the formula (II) and one group that is reactive with isocyanate groups. Multilayer color system using this composition, a method for its preparation and use are also provided. CR13-(CR22)x- (I); -X-Si-R3sG3-s (II).
EFFECT: proposed non-aqueous coating composition makes it possible to obtain films of a coating lacquer with improved adhesion.
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