Golf ball comprising a core having a hardness gradient and an outer cover layer having a microhardness gradient and being formed from a thermoset polyurethane material throughout, and having: i) a treated region that is contacted with a thermoset polyurethane microhardness-increasing solution consisting of an isocyanate portion and at least one non-aqueous solvent; and ii) an untreated region that is not contacted with the thermoset polyurethane microhardness-increasing solution. The treated region comprises the isocyanate portion, whereas the untreated region does not comprise the isocyanate portion. Treated region has a microhardness M.sub.1 that is greater than microhardness M.sub.2 of untreated region to define the outer cover layer positive microhardness gradient M=M.sub.1M.sub.2. The treated region may have a depth Dtr that extends inward from the cover outer surface and in some embodiments is less than a thickness of the untreated region. Treated region may alternatively extend from the inner surface toward outer surface.

The present invention relates to a copolymer obtainable by copolymerization of at least three ethylenically unsaturated monomers each different from one another, the copolymer having at least three structural units (S1) and (S2) and (S3) different from one another, to the use of this copolymer as an adhesion-promoting additive in an aqueous coating composition, to an aqueous coating composition comprising at least one polymeric resin (A1), at least one pigment (B), and at least one copolymer of the invention, used as adhesion-promoting additive, as component (C), and also to methods for at least partly coating a substrate with a basecoat and for at least partly coating a substrate with a multicoat paint system.

Described herein is a method of using organic carboxylic acids having 1 to 10 carbon atoms in preparation of aqueous basecoat materials for the purpose of improving the adhesion of the aqueous basecoat materials to overbaked clearcoat materials. Also described herein is a method for producing a muilticoat paint system, where a basecoat material is applied directly to an overbaked clearcoat film.

Described herein is a method of using aromatic and/or araliphatic carboxylic acids in preparation of aqueous basecoat materials for the purpose of improving the adhesion of the aqueous basecoat materials to overbaked clearcoat materials. Also described herein is a method for producing a multicoat paint system, where a basecoat material is applied directly to an overbaked clearcoat film.

Provided is a coating composition for the elastic coating of textile materials, comprising at least one blocked, isocyanate-terminated prepolymer (component A), the isocyanate-terminated prepolymer A) being prepared from a polyol component a) IN and an isocyanate component b), and the terminal isocyanate groups being blocked with dialkyl malonate and/or 3,5-dimethylpyrazole, and the isocyanate component b) containing 70 wt % of at least one aliphatic polyisocyanate and 30 wt % of at least one N aromatic polyisocyanate, based on the total weight of component b), at least one polyamine (component B) and 30 wt %, based on the total mass of the coating composition, of at least one organic solvent. Further provided are a method for coating substrates with the coating composition, and also the substrate obtainable in such a method, and, further, the use of the coating composition for producing elastic coatings or elastic films.

Provided is a coating composition for the elastic coating of textile materials, comprising at least one blocked, isocyanate-terminated prepolymer (component A), the isocyanate-terminated prepolymer A) being prepared from a polyol component a) IN and an isocyanate component b), and the terminal isocyanate groups being blocked with dialkyl malonate and/or 3,5-dimethylpyrazole, and the isocyanate component b) containing 70 wt % of at least one aliphatic polyisocyanate and 30 wt % of at least one N aromatic polyisocyanate, based on the total weight of component b), at least one polyamine (component B) and 30 wt %, based on the total mass of the coating composition, of at least one organic solvent. Further provided are a method for coating substrates with the coating composition, and also the substrate obtainable in such a method, and, further, the use of the coating composition for producing elastic coatings or elastic films.

The present invention provides a coating composition comprising 1% to 99% of a blend of two or more aspartic ester functional amines, 20% to 70% of an acrylate-containing compound; and 10% to 70% of one or more polyisocyanates, wherein the coating composition is 100% solids and wherein the coating composition has a maximum viscosity of no more than 600 cps at one hour. The ready-to-apply coating produced from this composition has extended working times without exhibiting zippering and may find use on countertops and floors.

The present invention provides a coating composition comprising 1% to 99% of a blend of two or more aspartic ester functional amines, 20% to 70% of an acrylate-containing compound; and 10% to 70% of one or more polyisocyanates, wherein the coating composition is 100% solids and wherein the coating composition has a maximum viscosity of no more than 600 cps at one hour. The ready-to-apply coating produced from this composition has extended working times without exhibiting zippering and may find use on countertops and floors.

The present invention relates to a process for producing a multicoat paint system on a metallic substrate, by producing a basecoat film or two or more directly successive basecoat films directly on a metallic substrate coated with a cured electrocoat system, producing a clearcoat directly on the one or the topmost of the two or more basecoat films, and then jointly curing the one or the two or more basecoat films and the clearcoat film, and which comprises at least one basecoat material used in producing the basecoat films comprising at least one aqueous polyurethane-polyurea dispersion (PD) comprising polyurethane-polyurea particles, with the polyurethane-polyurea particles present in the dispersion (PD) comprising anionic groups and/or groups which can be converted into anionic groups, and having an average particle size of 40 to 2000 nm and also a gel fraction of at least 50%.

The present invention relates to a process for producing a multicoat paint system on a metallic substrate, by producing a basecoat film or two or more directly successive basecoat films directly on a metallic substrate coated with a cured electrocoat system, producing a clearcoat directly on the one or the topmost of the two or more basecoat films, and then jointly curing the one or the two or more basecoat films and the clearcoat film, and which comprises at least one basecoat material used in producing the basecoat films comprising at least one aqueous polyurethane-polyurea dispersion (PD) comprising polyurethane-polyurea particles, with the polyurethane-polyurea particles present in the dispersion (PD) comprising anionic groups and/or groups which can be converted into anionic groups, and having an average particle size of 40 to 2000 nm and also a gel fraction of at least 50%.