Patent ID: 8790752

Claim:
A coating composition based on aprotic solvents and comprising at least one oligomeric and/or polymeric, hydroxyl-containing compound (A) and at least one compound (B) comprising isocyanate groups, and at least one silane group of the formula (I) —X—Si—R″ x G 3-x (I) with G=identical or different hydrolyzable groups having a substituent R′, R′=hydrogen, alkyl or cycloalkyl, it being possible for the carbon chain to be interrupted by nonadjacent oxygen, sulfur or NRa groups, with Ra=alkyl, cycloalkyl, aryl or aralkyl, X=organic radical, R″=alkyl, cycloalkyl, aryl or aralkyl, it being possible for the carbon chain to be interrupted by nonadjacent oxygen, sulfur or NRa groups, with Ra=alkyl, cycloalkyl, aryl or aralkyl, x=0 to 2, and characterized in that (i) the compound (B) containing isocyanate groups and silane groups comprises uretdione groups, and (ii) the compound (B) has been prepared from a linear aliphatic diisocyanate (DI).