Abstract: Effect pigment pastes include at least one effect pigment; at least one aqueous monomodal primary dispersion which is pseudoplastic after neutralization and has a solids content of from 15 to 40% by weight, comprising as disperse phase particles with an average size of from 10 to 500 nm which are composed of a hydrophobic core and hydrophilic shell, said particles being constructed of at least one (meth)acrylate copolymer having a glass transition temperature of from 30 to 100° C. and an acid number of from 10 to 50 mg KOH/g; at least one organic amine and/or ammonia; nonionic surfactant; and organic solvent, process for preparing the pigment paste, and their use for preparing pigmented mixtures, especially aqueous and nonaqueous coating materials.

Abstract: An aqueous effect coating material, comprising (A) at least one water-soluble, -dilutable and/or -dispersible binder, (B) at least one effect pigment, and (C) at least one silicon compound of the general formula I [(E)nL]Si(R1)(R2)(R3)??(I) in which the index and the variables are defined as follows: n is an integer from 1 to 5; E is a reactive functional group; L is an at least divalent, linking, organic group; R1 is a substituted or unsubstituted cycloalkoxy, alkoxy, aryloxy, cycloalkyl, alkyl or aryl radical; and R2 and R3 independently of one another are substituted or unsubstituted cycloalkoxy, alkoxy or aryloxy radicals or hydroxyl groups; preparation process, and its use.

Abstract: A color and/or effect coating material which is free from rheological aids based on phyllosilicates and comprises (A) a water-soluble, water-dilutable and/or water-dispersible polyurethane; (B) a color and/or effect pigment; (C) a dispersing assistant selected from the group consisting of the reaction products of (c1) a functionalized copolymer containing (c11) a copolymerized olefinically unsaturated monomer isocyanate groups, anhydride groups and epoxy groups; and (c12) a copolymerized olefinically unsaturated monomer which is free from isocyanate-, anhydride- and epoxy-reactive functional groups; (c2) at least one homopolymeric polyalkylene glycol, and (c3) at least one compound of the general formula I: NR2—C(O)—NR2??(I) ?in which the variables R are selected from the group consisting of hydrogen atoms and organic radicals, at least one of the radicals R containing at least one reactive functional group selected from the group consisting of isocyanate-, anhydride- and epoxy-reactive groups; and (D) a rh

Abstract: A wet-on-wet process for producing multicoat color and/or effect coating systems is disclosed. The process involves using aqueous functional coating materials comprising (A) at least one crosslinkable binder, (B) at least one separate, water-soluble and/or -dispersible crosslinking system which independently effects partial or complete crosslinking in and/or on the matrix of the wet, drying and/or dried films (2) of the aqueous functional coating materials before the binders (A) crosslink completely; and (C) at least one pigment.

Abstract: A pigment paste free from binders and grinding resins, comprising based on its overall amount (A) from 15 to 25% by weight of at least one mica pigment, (B) from 0.45 to 0.75% by weight of at least one nonassociative thickener comprising at least one methacrylate copolymer based on C1-C6 alkyl (meth)acrylate and (meth)acrylic acid, (C) from 0.1 to 0.4% by weight of at least one organic amine, (D) from 0.1 to 12% by weight of at least one nonionic surfactant, and (E) at least 50% by weight of water; its use for preparing aqueous coating materials, and processes for the preparation.

Abstract: Use of associative thickeners based on polyurethane and/or dipropylene glycol monoalkyl ethers for suppressing defects in color and/or effect multicoat paint systems, or their touch-up paints.

Abstract: An aqueous effect coating material, comprising (A) at least one water-soluble, -dilutable and/or -dispersible binder, (B) at least one effect pigment, and (C) at least one silicon compound of the general formula I [(E)nL]Si(R1)(R2)(R3) ??(I) in which the index and the variables are defined as follows: n is an integer from 1 to 5; E is a reactive functional group; L is an at least divalent, linking, organic group; R1 is a substituted or unsubstituted cycloalkoxy, alkoxy, aryloxy, cycloalkyl, alkyl or aryl radical; and R2 and R3 independently of one another are substituted or unsubstituted cycloalkoxy, alkoxy or aryloxy radicals or hydroxyl groups; preparation process, and its use.

Abstract: The invention concerns a novel aqueous composition that can be hardened physically, thermally and/or with actinic radiation, containing a compound of general formula (I): X[NH—C(═O)—NH—Y—NH—C(═O)—OR]2 having at least one urea and urethane group, wherein the variables have the following meaning: R represents identical or different polyalkylene glycol ether radicals; X represents a bivalent substituted or unsubstituted arylene radical; Y represents identical bivalent substituted or unsubstituted arylene radicals, which are the same as or different from radical X or different bivalent substituted or unsubstituted arylene radicals of which none or one is identical to radical X. The invention also concerns the utilization of said compound for the production of novel aqueous coating materials, adhesives and sealants that can be hardened physically, thermally or thermally and with actinic radiation and their derivatives.

Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which oxalic acid is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.

Abstract: A wet-on-wet process for producing multicoat color and/or effect coating systems in which process

Abstract: The invention embraces basecoating compositions comprising as binder constituents (i) an acrylate dispersion having a content of from 30 to 60% by weight of C1-C8-alkyl (meth)acrylate-containing monomers, from 30 to 60% by weight of vinylaromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid in the polymer, and (ii) a dispersion of a polymer which is obtainable by subjecting an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers to free-radical polymerization in the presence of a water-insoluble initiator or of a mixture of water-insoluble initiators and in an aqueous dispersion of a polyurethane resin which has a number-average molecular weight Mn of from 1000 to 30,000 daltons and comprises on average from 0.05 to 1.

Abstract: The invention concerns a novel aqueous composition that can be hardened physically, thermally and/or with actinic radiation, containing a compound of general formula (I): X[NH—C(═O)—NH—Y—NH—C(═O)—OR]2 having at least one urea and urethane group, wherein the variables have the following meaning: R represents identical or different polyalkylene glycol ether radicals; X represents a bivalent substituted or unsubstituted arylene radical; Y represents identical bivalent substituted or unsubstituted arylene radicals, which are the same as or different from radical X or different bivalent substituted or unsubstituted arylene radicals of which none or one is identical to radical X. The invention also concerns the utilization of said compound for the production of novel aqueous coating materials, adhesives and sealants that can be hardened physically, thermally or thermally and with actinic radiation and their derivatives.

Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which oxalic acid is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.

Abstract: The invention relates to an aqueous coating material that can be hardened thermally and/or by using actinic radiation. Said coating material contains: A) at least one polyurethane, which is saturated, unsaturated and/or which is grafted with olefinically unsaturated compounds and ionically and/or non-ionically stabilized, is used as a binding agent; B) at least one cross-linking agent, and; C) at least one chromophoric and/or effect-producing pigment. The coating material is characterized in that hexamethylene diisocyanate and/or at least one polyisocyanate based on hexamethylene diisocyanate is/are used as the cross-linking agent (B), which is completely blocked with a mixture consisting of, with regard to the present isocyanate groups to be blocked, B1) 25 to 75 mol % of at least one malonic acid dialkyl ester, and of B2) 75 to 25 mol % of at least one dialkyl ketoxime.

Abstract: The present invention relates to a process for producing single-coat or multicoat clearcoat finishes on primed or unprimed substrates by applying at least one powder coating dispersion, in particular a powder clearcoat slurry, to the substrate and then curing the resulting film(s) thermally and/or with actinic radiation, in which at least one polyvalent inorganic acid and/or oxalic acid are or is added to at least one powder coating dispersion, in particular to a powder clearcoat slurry.

Abstract: The invention relates to a process for applying a multicoat finish to a substrate surface, comprising the following steps: (1): applying an aqueous basecoat A to the substrate surface, (2): forming a polymer film from the aqueous basecoat A applied in stage (1), (3): applying an aqueous transparent topcoat B to the basecoat film obtained in stage (2), and finally (4); baking the basecoat film and the topcoat film together, wherein the basecoat A comprises at least one hydroxyl-containing binder in aqueous solution or dispersion and a stable aqueous dispersion, prepared with a hydroxyl-containing emulsifier, of a hydrophobicized amino resin, and to substrates coated in accordance with the process of the invention.

Abstract: The invention relates to aqueous clearcoats comprising a multicomponent aqueous dispersion which comprises: A) at least one aqueous dispersion of a hydroxyl-containing binder, and B) a stable aqueous dispersion of a hydrophobic amino resin, said dispersion being prepared using a hydroxyl-containing emulsifier. The hydrophobic amino resin in component B) is preferably a hydrophobic melamine resin and the hydroxyl-containing binder in component A) is preferably a hydroxyl-containing polyacrylate. Further embraced by the invention are a method of applying multilayer coatings, in which the aqueous coating materials of the invention are used as topcoat, and substrates coated with such multilayer coatings.

Abstract: The present invention relates to an aqueous powder coating dispersion which can be prepared by processing the binder of the powder coating material and/or the crosslinker of the powder coating material or the entire powder coating material to give a powder by spray drying and then preparing an aqueous powder coating dispersion using the spray-dried powder. The present invention additionally relates to a process for preparing the aqueous powder coating dispersion and to the use of the powder coating dispersion, especially for the coating of automobile bodies.

Abstract: The use as an additive for coating formulations is claimed of a polymer dispersion which comprises (i) an acrylate polymer based on from 30 to 60% by weight of C1-C8-alkyl (meth)acrylate monomers, from 30 to 60% by weight of vinylaromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid, and (ii) a nonassociative rheology stabilizer comprising an acrylate copolymer based on C1-C6-alkyl (meth)acrylate and (meth)acrylic acid.

Abstract: The invention relates to aqueous powder coating dispersions based on epoxy resins, consisting of a solid, pulverulent component I and an aqueous component II, component I being a powder coating comprising: A) at least one epoxy resin having an epoxide equivalent weight of from 300 to 5500 daltons, B) at least one di- and/or polycarboxylic acid as curing agent, comprising one or more organosilyl groups in the molecule, if desired in a mixture with other di- and/or polycarboxylic acids which contain no organosilyl group as substituent, and C) if desired, catalysts, fillers, auxiliaries and/or additives specific to powder coating, such as degassing agents, leveling agents, free-radical scavengers, antioxidants and/or UV absorbers, and component II being an aqueous dispersion comprising: D) at least one nonionic thickener and E) if desired, catalysts, auxiliaries, defoaming agents, dispersion auxiliaries, wetting agents, preferably carboxyl-containing dispersants, anti-oxidants, UV absorbers, free-radical s