Nonaqueous coating material compositions, coatings produced therefrom and having improved adhesion and scratch resistance and also use thereof

A nonaqueous coating material composition, comprising

• at least one polyhydroxyl group-containing component (A),
• at least one polyisocyanate group-containing component (B),
• at least one catalyst (D), and
• at least one urethane additive (PF) which is different from component (B) and which comprises
• at least one perfluoroalkyl group of formula (I)
• CR13—(CR22)x— (I),
• where
• R1 and R2 independently are H, F and/or CF3, with the proviso that R1 and
• R2 are not both H, and
• x is 1 to 20, and
• at least one silane group of formula (II)
• —X—Si—R3sG3-s (II)
• where
• G is independently a hydrolyzable group,
• X is an organic radical,
• R3 is alkyl, cycloalkyl, aryl, or aralkyl, wherein the carbon chain is optionally interrupted by nonadjacent oxygen, sulfur, or NRa groups, where Ra is alkyl, cycloalkyl, aryl or aralkyl,
• s is 0 to 2,
• wherein the urethane additive (PF) is prepared by reacting
• 0.5 to 20.0 mol % of isocyanate groups originally present in at least one polyisocyanate (PI) with a component (Ia) which has at least one perfluoroalkyl group of the formula (I) and one group reactive toward the isocyanate groups,
• 30.0 to 98.5 mol % of the isocyanate groups originally present in the polyisocyanate (PI) with a component (IIa) which is different from the component (Ia) and which has at least one silane group of the formula (II) and one group reactive toward the isocyanate groups, and
• 1.0 to 69.5 mol % of the isocyanate groups originally present in the polyisocyanate (PI) with a monofunctional component (IIIa) which is different from components (Ia) and (IIa) and which is reactive toward the isocyanate groups.