Abstract: A nonaqueous coating material curable thermally or thermally and with actinic radiation, comprising (A) a hydroxyl-containing binder component comprising (A1) at least one hydroxyl-containing polyester and (A2) at least one hydroxyl-containing (meth)acrylate copolymer prepared at least partly in the presence of the polyester (A1) (B) at least one crosslinking component comprising at least one polyisocyanate, and (C) at least one low molecular mass and/or oligomeric, essentially unbranched, hydrophobic polyester having at least two hydroxyl groups in the molecule, an OH number of from 56 to 500 mg KOH/g, an acid number <10 mg KOH/g, and a number-average molecular weight Mn of from 300 to 2000 daltons; process for its preparation, and its use.

Abstract: A nonaqueous coating material curable thermally or thermally and with actinic radiation, comprising

Abstract: The invention relates to water-dilutable binders which can be prepared by subjecting (A) from 20 to 90% by weight of a mixture of (a1) from 3 to 50% by weight of acrylic acid, methacrylic acid or of a mixture of acrylic acid and methacrylic acid, and (a2) from 50 to 97% by weight of an ethylenically unsaturated monomer or of a mixture of ethylenically unsaturated monomers to free-radical polymerization in the presence of (B) from 9.9 to 79.9% by weight of a halogen-free copolymer composed of (b1) from 1 to 99, preferably from 50 to 90% by weight, of propylene, (b2) from 1 to 99, preferably from 10 to 50% by weight, of at least one olefin which is copolymerizable with (b1) and contains per molecule from five to twenty, preferably from six to eight, carbon atoms, with the exception of isoprene, and (b3) from 0 to 50, preferably from 0 to 25% by weight, of ethylene and/or butylene, or of a mixture of such copolymers, and (C) from 0.

Abstract: The present invention relates to a coating composition comprising(A) at least one hydroxyl-containing component which [lacuna] of(A1) from 5 to 60% by weight of at least one polyester and(A2) from 40 to 95% by weight of at least one polyacrylate resin which has been prepared at least partially in the presence of component (A1) and(B) at least one crosslinking agent, characterized in that component (A2) is obtainable from the monomer units:(a) a cycloaliphatic ester of (meth)acrylic acid,(b) a hydroxyl-containing alkyl ester of (meth)acrylic acid,(c) a monomer which is different from (a) and (b) and has at least two polymerizable, olefinically unsaturated double bonds,(d) optionally a further hydroxyl-containing, ethylenically unsaturated monomer which is different from (a), (b) and (c),(e) an aliphatic ester of (meth)acrylic acid which is different from (a), (b), (c) and (d),(f) a vinyl-aromatic hydrocarbon which is different from (a), (b), (c), (d) and (e), and(g) a further ethylenically unsaturated monomer

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 at least one hydroxyl-containing polyacrylate resin as binder component (A) and at least one crosslinking agent (B),component (A) being obtainable by free-radical polymerization of:(a) from 5 to 80% by weight of at least one cycloaliphatic ester of (meth)acrylic acid,(b) from 10 to 50% by weight of at least one hydroxyl-containing alkyl ester of (meth)acrylic acid,(c) from 1 to 25% by weight of at least one monomer having at least two polymerizable, olefinically unsaturated double bonds,(d) from 0 to 25% by weight of at least one further hydroxyl-containing monomer,(e) from 5 to 80% by weight of at least one aliphatic ester of (meth)acrylic acid,(f) from 0 to 40% by weight of at least one vinyl-aromatic compound, and(g) from 0 to 40% by weight of at least one further monomer,the sum of the proportions by weight of all monomers (a) to (g) always being 100% by weight.

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.

Abstract: The present invention relates to a solution of a polyacrylate resin in one or more organic solvents, containing one or more phosphites, characterized in that the solution contains from 0.05 to 1.0% by weight, based on the solids content of the acrylate resin solution, of one or more phosphites and in that the phosphite has been added, either partially or entirely, after the polymerization reaction, at a temperature below the polymerization temperature.The present invention further relates to coating compositions which contain these polyacrylate resin solutions, their use in processes for producing a multilayer protective and/or decorative coating on a substrate surface, and the use of the coating compositions in the automotive refinishing sector.

Abstract: A urethanized polyester is claimed which is suitable as an additive for aqueous coating systems, which is obtainable by, in a first reaction stage (A), subjecting(a) from 10 to 45 mol-% of one or more diols,(b) from 5 to 50 mol-% of one or more polyols having at least 3 OH groups, and(c) from 35 to 47 mol-% of one or more aromatic, aliphatic or cycloaliphatic polycarboxylic acids and/or reactive derivatives thereof to a polycondensation reaction in a manner known per se until the reaction mixture has an acid number of from 1 to 10, and, in a reaction stage (B), reacting the resulting reaction product in a manner known per se with an organic polyisocyanate. The urethanized polyester is outstandingly suitable as an additive for aqueous coating materials in order to improve the rheological stabilization of coating materials.

Abstract: Water dilutable binders, prepared by subjecting to free radical polymerization(A) from 20 to 90% by weight of a mixture of(a1) from 3 to 50% by weight of acrylic acid, methacrylic acid or a mixture of acrylic acid and methacrylic acid, and(a2) from 50 to 97% by weight of an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers,in the presence of(B) from 9.9 to 79.9% by weight of a halogen-free polyolefin free from maleic anhydride groups, or a mixture of halogen-free polyolefins free from maleic anhydride groups, and(C) from 0.1 to 10% by weight of a free radical initiator or a mixture of free radical initiatorsand, after neutralization of at least 20% of the carboxyl groups contained in the resulting polymerization product, dispersing the polymerization product in water, the sum of the percentages by weight of components (A), (B) and (C) and (a1) and (a2) in each case always being 100% by weight.