Abstract: The invention relates to coating compositions comprising:(A) from 5 to 60% by weight of at least one polyester-modified polyacrylate resin consisting of:(a1) from 20 to 60% by weight of at least one polyester and(a2) from 40 to 80% by weight of at least one hydroxyl-containing polyacrylate resin which has been prepared at least in part in the presence of component (a1),(B) from 1 to 35% by weight of at least one hydroxyl-containing, siloxane-modified polyacrylate resin, and(C) from 5 to 50% by weight of an isocyanate crosslinking agent,and to a process for the production of a protective and/or decorative coating with such coating compositions, and to their use as topcoats and refinish coating materials.

Abstract: The present invention relates to a coating composition comprising(A) at least one hydroxyl-containing polyacrylate resin,(B) at least one isocyanate crosslinking agent and, if desired,(C) at least one hydroxyl-containing polyester-modified polyacrylate resin,wherein the polyacrylate resin (A) is obtainable by polymerizing(a1) at least one essentially carboxyl-free (meth)acrylic ester,(a2) at least one copolymerizable, hydroxyl-containing monomer which is different from (a3)(a3) at least one reaction product of acrylic acid and/or methacrylic acid with the glycidyl ester of an .alpha.-branched monocarboxylic acid having 5 to 18 carbon atoms per molecule,(a4) if desired, an [sic] at least one carboxyl-containing monomer,(a5) at least one polysiloxane macromonomer having a number-average molecular weight of from 1000 to 40,000 and on average from 0.5 to 2.5 ethylenically unsaturated double bonds per molecule or having on average from 0.5 to 2.