Patent ID: 9371469
Filing Date: 2016-06-21
CPC Classification: B05D,C08G,C08K,C09D,Y10T

Claim Text:
1. A nonaqueous coating material composition comprising (A) at least one polyhydroxyl-group-containing compound (A), (B1) at least one polyisocyanate-group-containing compound (B1) having free or blocked isocyanate groups and having a cycloaliphatic polyisocyanate parent structure and/or a polyisocyanate parent structure that has free or blocked isocyanate groups and that is derived from one such cycloaliphatic polyisocyanate by trimerization, dimerization, urethane formation, biuret formation, uretdione formation and/or allophanate formation, (B2) at least one polyisocyanate-group-containing compound (B2), different from component (B1), having free or blocked isocyanate groups and having an acyclic, aliphatic polyisocyanate parent structure and/or a polyisocyanate parent structure that has free or blocked isocyanate groups and that is derived from one such acyclic aliphatic polyisocyanate by trimerization, dimerization, urethane formation, biuret formation, uretdione formation and/or allophanate formation, (D) at least one catalyst (D) for the crosslinking of silane groups, where one or both of component (B1) and component (B2) comprise at least one structural unit selected from the group consisting of the structural unit of the formula (I), the structural unit of the formula (II) and mixtures of two or more of the foregoing, where R=hydrogen, alkyl, cycloalkyl, aryl or aralkyl, it being possible for the carbon chain to be interrupted by nonadjacent oxygen, sulfur or NRa groups, where Ra=alkyl, cycloalkyl, aryl or aralkyl, R′=hydrogen, alkyl or cycloalkyl it being possible for the carbon chain to be interrupted by nonadjacent oxygen, sulfur or NRa groups, X, X′=linear and/or branched alkylene or cycloalkylene radical having 1 to 20 carbon atoms, R″=alkyl, cycloalkyl, aryl or aralkyl, it being possible for the carbon chain to be interrupted by nonadjacent oxygen, sulfur or NRa groups, n=0 to 2, m=0 to 2, m+n=2, and x, y=0 to 2, with the provisos that (i) the amount of component (B1) is between 5 and 45% by weight, based on the sum of the amount of component (B1) and the amount of component (B2), (ii) the mixture of components (B1) and (B2) includes structural units (I) and structural units (II), and (iii) the coating material composition comprises from 20% to 80% by weight, based on solids content of the coating material composition, of at least one hydroxyl-containing polyacrylate (A) and/or at least one hydroxyl-containing polymethacrylate (A).