Abstract: The invention relates to novel aqueous coating agents for baking enamels, in particular for producing hard, elastic fillers with a high solid content, for coating car bodies.

Abstract: The invention relates to novel, aqueous coating agents for baking enamels, in particular for producing hard, elastic fillers with a high solid content for coating metals, plastics, wood and glass.

Abstract: The present invention relates to aqueous coating compositions containing

Abstract: The invention relates to aqueous and/or water-dilutable polyisocyanate crosslinkers blocked with diisopropylamine, to their preparation and use in one-component baking lacquers, for example as fillers in automotive lacquering.

Abstract: The present invention relates to coating compositions comprising a mixture of at least two aqueous, anionic polyurethane polyurea dispersions A and B, wherein dispersion A as a dry film has a TG in the range from −30° C., to −45° and dispersion B as a dry film has a first TG in the range from −30° C. to −45° C. and a second TG in the range from +45° C. to +60° C., and the mixture of A and B as a dry film has only one TG in the range from −30° C. to −45° C.

Abstract: The invention relates to a waterborne coating composition containing a physical mixture present in the form of a dispersion in water and optionally organic solvents and containing

Abstract: The present invention relates to a storage-stable, waterborne, one-component, coating composition, which can be cured at temperatures below 100° C. to provide a stone chip resistant and sandable coating, containing as the binder a polyurethane dispersion A, which after physical drying results in a coating having a pendulum hardness according to DIN 53 157 of >90 s; a polyurethane dispersion B, which after physical drying results in a coating having a pendulum hardness (DIN 53 157) of <90 s; and a melamine resin C, which is preferably highly reactive.

Abstract: The present invention relates to an aqueous dispersion containing A) a polyol component containing A1) 20 to 60 wt. %, based on the resin solids content of polyol component A), of a polyester resin containing 10 to 60 wt. %, based on the weight of the polyester resin, of one or more aliphatic, saturated or unsaturated monocarboxylic acids having 8 to 30 carbon atoms, and 0.4 to 5 wt. % of one or more radically polymerizable &agr;,&bgr;-unsaturated mono- or di-carboxylic acids having 3 to 8 carbon atoms, or their anhydrides, and A2) 40 to 80 wt. %, based on the resin solids content of polyol component A), of a polyacrylate, which is prepared in the presence of component A1), and B) 1 to 70 wt. %, based on the resin solids content of the aqueous dispersion, of one or more blocked polyisocyanates.

Abstract: The present invention relates to an aqueous dispersion containing

Abstract: The present invention relates to light fast, aqueous, strippable coating compositions containing

Abstract: The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes are reaction products of

Abstract: The present invention relates to aqueous or water dilutable blocked polyisocyanates containing a) a polyisocyanate component and, based on the equivalents of isocyanate groups, b) 60 to 85 equivalent % of a pyrazole blocking agent, c) 15 to 40 equivalent % of a monohydroxycarboxylic acid to impart hydrophilic properties and d) 0 to 15 equivalent % of a difunctional chain extender containing OH and/or NH2 groups, wherein the amounts of a) to d) are selected so that the equivalent ratio of NCO groups of component a) to isocyanate-reactive groups of components b), c) and d) is 1:0.8 to 1:1.2. The present invention also relates to a process for preparing these polyisocyanate crosslinking agents and to their use in combination with polyhydroxyl compounds which are soluble and/or dispersible in water as binders for aqueous stoving lacquers.

Abstract: The present invention relates to coating composition, which is suitable for preparing light fast coatings and contains a cosolvent-free, aqueous, anionic dispersion of polyurethane-ureas, the solids content of which contains the reaction product, present at least partially in salt form, of a) an NCO prepolymer prepared from i) an aliphatic and/or cycloaliphatic diisocyanate, ii) a macrodiol having a number average molecular weight of 500 to 10,000 iii) a 2,2-bis-(hydroxymethyl)alkane monocarboxylic acid and iv) a diol having a molecular weight of 62 to 400, with b) optionally a diamine, c) a monofunctional chain terminating agent, d) water and e) a neutralizing agent, provided that the NCO content of the prepolymer is up to 25% lower than the theoretical value, the entire polyurethane-urea synthesis reaction is performed in the homogeneous phase and no cosolvent having a boiling range of greater than 100° C. is used during the preparation of the dispersion of polyurethane-ureas.

Abstract: The present invention relates to a process for preparing a coated substrate by coating the substrate with an aqueous dispersion, which may be physically cured to form a light stable, elastic coating, containingA) a polyol component containingA1) 20 to 60 wt. %, based on the resin solids content of polyol component A), of a polyester resin containing 10 to 60 wt. %, based on the weight of the polyester resin, of one or more aliphatic, saturated or unsaturated monocarboxylic acids having 8 to 30 carbon atoms, and 0.4 to 5 wt. %, based on the weight of the polyester resin, of one or more radically polymerizable .alpha.,.beta.-unsaturated mono- or di-carboxylic acids having 3 to 8 carbon atoms, or their anhydrides, andA2) 40 to 80 wt. %, based on the resin solids content of polyol component A), of a polyacrylate, which is prepared in the presence of component A1), andB) 1 to 70 wt.

Abstract: A multilayer flat molding with a visible side and a supporting layer, for example bathtubs or shower fittings, is described, the visible side consisting of a polyurethane surface coating layer and the supporting layer consisting of a reinforced polyurethane layer.

Abstract: The present invention relates to coating composition, which is suitable for preparing light fast coatings and contains a cosolvent-free, aqueous, anionic dispersion of polyurethane-ureas, the solids content of which contains the reaction product, present at least partially in salt form, ofa) an NCO prepolymer prepared fromi) an aliphatic and/or cycloaliphatic diisocyanate,ii) a macrodiol having a number average molecular weight of 500 to 10,000iii) a 2,2-bis-(hydroxymethyl)alkane monocarboxylic acid andiv) a diol having a molecular weight of 62 to 400, withb) optionally a diamine,c) a monofunctional chain terminating agent,d) water ande) a neutralizing agent,provided that the NCO content of the prepolymer is up to 25% lower than the theoretical value, the entire polyurethane-urea synthesis reaction is performed in the homogeneous phase and no cosolvent having a boiling range of greater than 100.degree. C. is used during the preparation of the dispersion of polyurethane-ureas.

Abstract: The present invention relates to aqueous dispersions of polyester-polyurethanes which contain hydroxyl groups and are prepared froma) 15 to 90% by weight of one or more essentially linear, polyester polyols,b) 4 to 75% by weight of one or more essentially difunctional polyols selected from i) polycarbonates, ii) polyether polyols and iii) polyester polyols which are obtained by the hydrogenation of carboxyl groups to hydroxyl groups, the alkoxylation of carboxyl groups or the esterification of carboxyl groups using low molecular weight diols of dimeric fatty acids,c) 1 to 10% by weight of one or more components containing acid groups selected from i) hydroxycarboxylic acids, ii) amino acids, iii) aminosulphonic acids and iv) alkali salts of the acids of i), ii) and iii),d) 0 to 20% by weight of a low molecular weight component containing at least two hydroxyl and/or amino groups,e) 0 to 20% by weight of one or more hydrophilic monovalent or divalent alcohols andf) 5 to 50% by weight of a polyisocyanate compon

Abstract: The present invention relates to a coating composition which is suitable for coating plastics and contains a one- or two-component binder and, as an adhesion promoter, a chemically modified crystalline, chlorine-free polyolefin, which has an average molecular weight of 1,000 to 8,000, a non-uniformity of 1.0 to 6.5 and a content of nitrogen, oxygen, sulphur and/or silicon in the form of chemically incorporated functional groups of 1.5 to 17.5 wt % in total. The present invention also relates to a process for coating plastics using this coating composition and to the resulting coated plastics.

Abstract: The present invention relates to polyester polyols which have a hydroxyl number of 80 to 250 and are the reaction product ofa) 52 to 60 mole % of a polyol component containingi) 10 to 50 mole % of one or more dihydric aliphatic alcohols having at least two carbon atoms, other than neopentyl glycol,ii) 5 to 40 mole % of one or more trihydric or higher functional aliphatic alcohols having at least 3 carbon atoms,iii) 10 to 40 mole % of one or more cycloaliphatic diols andiv) 10 to 60 mole % of neopentyl glycol, withb) 40 to 48 mole % of a dicarboxylic acid component containingv) 0 to 49.9 mole % of one or more saturated aliphatic dicarboxylic acids or an anhydrides thereof having at least 2 carbon atoms andvi) 50.1 to 100 mole % of one or more unsaturated aliphatic dicarboxylic acids or anhydrides thereof having at least 4 carbon atoms,wherein the percentages of a) and b), i) to iv) and v to vi) add up to 100.