| abstract |
The present invention relates to the use of at least one homopolymer or copolymer obtainable by polymerization of an ethylenically unsaturated monomer as an adhesion-enhancing additive, wherein the homopolymer or copolymer comprises at least one structural unit (W0), Comprises at least two additional structural units (W1) and (W2), and optionally at least one additional structural unit (W3) different from (W0), (W1) and (W2) The structural unit (W0) comprises at least one functional group containing at least one functional group containing at least one phosphorus atom, and at least one functional group reactive with the isocyanate group, wherein each structural unit (W1) (W2) comprises at least one functional group containing one phosphorus atom, each structural unit (W2) comprises at least one functional group reactive with an isocyanate group, and the structural unit (W2) , And the homopolymer or copolymer contains 1 to 100 mol% of the structural unit (W0) relative to the total amount of at least one structural unit (W0) in the polymer main chain of the homopolymer or copolymer, or 1 to 80 mol% of the structural unit (W1) and 1 to 80 mol% of the structural unit (W2), based on the total amount of the at least two structural units (W1) and (W2) in the polymer main chain of the homopolymer or copolymer. The invention also relates to a coating composition comprising such a homopolymer or copolymer as component (A) and at least one binder as component (B), and a transparent lacquer, production line lacquer, Or as a maintenance lacquer. |