Fluorine-containing nonaqueous coating material composition, coating methods, and the use of the coating material composition

摘要

Nonaqueous coating material compositions comprising at least one polyhydroxyl and (per)fluoroalkyl group-containing poly(meth)acrylate component (A), at least one polyisocyanate group-containing compounds (B), and one or more catalysts (D). Also provided are multistage coating methods using the coating material compositions, and also the use of the coating material compositions as a clearcoat material and for coating of wind energy systems or aircraft, or parts thereof, more particularly as an anti-icing coating.

主权项

1. A nonaqueous coating material composition comprising:
(A) 30% to 80% by weight of a (per)fluoroalkyl group-containing poly(meth)acrylate component (A), wherein the poly(meth)acrylate component (A) contains multiple hydroxyl groups, (B) 20% to 70% by weight of one or more polyisocyanate compounds (B), and (D) one or more catalysts (D), the weight percentages of components (A) and (B) being based in each case on the binder content of components (A) and (B), and the sum of the weight fractions of components (A) plus (B) being in each case 100% by weight, wherein the poly(meth)acrylate component (A) comprises as a synthesis component 0.05% to 15.0% by weight, based in each case on the amount of all of the compounds used in preparing the poly(meth)acrylate component (A), of one or more (per)fluoroalkyl group-containing reaction products (U) of: (i) one or more diisocyanates (PI) having two isocyanate groups with different reactivities, (ii) one or more (per)fluoroalkyl monoalcohol components (FA), and (iii) optionally one or more compounds (V) having at least one group (G1) that is reactive toward isocyanate groups, and optionally having a further functional group (G2), which is different from group (G1).