Abstract: A method for coating an uncoated or precoated metallic or plastics substrate by (a) applying an aqueous coating composition (W) whose constituents are free or substantially free from blocked isocyanate groups, which comprises an aqueous dispersion of an epoxide-amine adduct, and which comprises either no crosslinking agent or one or more nonblocked polyisocyanate crosslinking agents, to the substrate, (b) optionally applying one or more further coating compositions, and (c) curing the coating composition (W) and, where appropriate, the further coating composition(s) at temperatures of below 90° C.

Abstract: Shelf-stable low temperature cure coating compositions that include a hydroxy-functional resin, a crosslinking agent, and a catalyst that does not catalyze the crosslinking reaction between hydroxy-functional resin and the crosslinking agent contained therein, but instead between a hydroxy-functional resin and a crosslinking agent contained in a different low temperature cure coating composition.

Abstract: Shelf-stable low temperature cure coating compositions that include a hydroxy-functional resin, a crosslinking agent, and a catalyst that does not catalyze the crosslinking reaction between hydroxy-functional resin and the crosslinking agent contained therein, but instead between a hydroxy-functional resin and a crosslinking agent contained in a different low temperature cure coating composition.

Abstract: A method of forming a passivated pigment slurry includes combining a resin and a pigment to form a pigment-resin slurry, wherein the pigment includes a plurality of flakes each having a surface. After combining, the method includes firstly reacting an orthosilicate and the pigment in the presence of the resin to form a coated pigment-resin slurry. The coated pigment-resin slurry includes the resin and a coated pigment including the plurality of flakes each encapsulated by a first layer formed from the orthosilicate on the surface. The method further includes, concurrent to or after firstly reacting, secondly reacting the coated pigment-resin slurry and an organosilane compound having a hydrolysable group and an organic group to coat the first layer and form the passivated pigment slurry. The passivated pigment slurry includes the resin and a passivated pigment including the plurality of flakes each coated with a second layer disposed on the first.

Abstract: The invention relates to the use of phosphoric acid and/or of monoesters and/or diesters of phosphoric acid in aqueous basecoat materials for improving adhesion of these coating materials to overbaked clearcoat materials which comprise boron compounds.

Abstract: Disclosed herein is a coating material system containing (A) at least one polyhydroxy group-containing compound, (B) at least one polyisocyanate-containing compound, and (C) at least one catalyst comprising lithium (Li) and bismuth (Bi) as metal components and where the molar ratio of lithium to bismuth is at least 7:1 [mol/mol], in which i) components (A), (B), and (C) are present separately from one another, or ii) are mixed wholly or at least partly with one another. Methods for producing and using the coating material system are also disclosed herein.

Abstract: The present invention relates to a method for producing a multicoat paint system on a metallic substrate, in which a basecoat or a plurality of directly successive basecoats are produced directly on a metallic substrate coated with a cured electrocoat, a clearcoat is produced directly on the one basecoat or the uppermost of the plurality of basecoats, and then the one or more basecoats and the clearcoat are jointly cured, and wherein at least one basecoat material used for production of the basecoats comprises at least one aqueous dispersion comprising at least one copolymer (CP), said copolymer (CP) being preparable by initially charging an aqueous dispersion of at least one polyurethane, and then polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane from (i), in which a water-soluble initiator is used, the olefinically unsaturated monomers are metered in such that a concentration of 6.

Abstract: Described is a method for producing a multicoat color and/or effect paint system. The method is characterized in that a pigmented aqueous basecoat material is used which comprises at least one phosphine oxide of formula (I): wherein the radicals R1 to R3 are selected from the group of aliphatic or aromatic hydrocarbons. The sum total of the weight percentage fractions of all of the phosphine oxides of formula (I) is 0.1% to 5% by weight, based on the total weight of the basecoat material. Also described are the corresponding basecoat materials, a corresponding multicoat color and/or effect paint system, and use of the phosphine oxides in pigmented aqueous coating materials. Further describes is a method for repairing defects on multicoat color and/or effect paint systems produced with the aid of the method of the invention.

Abstract: The present invention relates to a copolymer (A) having a glass transition temperature Tg of at least ?30° C. obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent and in the presence of at least one initiator, where the mixture of monomers (a) to be polymerized comprises (a1) 10 to 60 mol % of at least one monomer of the formula (I) below where R1=C1 to C4 alkoxy, R2=C1 to C4 alkyl, and m=0 to 2, and (a2) 40 to 90 mol % of at least one olefinically unsaturated monomer selected from the group consisting of monomers of the formulae H2C?CH2—(C?O)—O—Rx, H2C?CH(CH3)—(C?O)—O—Rx, and H2C?CH2—O—(C?O)—Rx, where Rx is an alkyl radical having 1 to 20 carbon atoms, and where the sum total of the molar fractions of the monomers (a1) and (a2), based on the total molar amount of monomers (a) used, is at least 90 mol %, and where the copolymerization is carried out at a temperature from 60 to 200° C. and at a pressure of at least 2 bar.

Abstract: A two-component coating composition contains (1) a paint base component comprising (A) at least one polycarbonate diol, (B) at least one hydroxyl-containing acrylate resin, polyester resin and/or polyester acrylate resin having a hydroxyl number of 75 to 500 mg KOH/g, and (C) at least one filler modified with at least one organosilane, and (2) a hardener component comprising (D) at least one organic polyisocyanate, where the coating composition has a viscosity of 50 to 2000 mPa·s at a shear stress of 1000 l/s and a temperature of 23° C. and a proportion of organic solvents of 100 to 350 g/L.

Abstract: The present invention relates to an aqueous polyurethane-polyurea dispersion (PD) having polyurethane-polyurea particles, present in the dispersion, having an average particle size of 40 to 2000 nm, and having a gel fraction of at least 50%, the polyurethane-polyurea particles comprising, in each case in reacted form, (Z.1.1) at least one polyurethane prepolymer containing isocyanate groups and comprising anionic groups and/or groups which can be converted into anionic groups, and (Z.1.2) at least one polyamine comprising two primary amino groups and one or two secondary amino groups, and the dispersion (PD) consisting to an extent of at least 90 wt % of the polyurethane-polyurea particles and water. The present invention also relates to basecoat materials comprising the dispersion (PD), and to multicoat paint systems produced using the basecoat materials.

Abstract: An multilayer coated film comprises a waterborne intermediate-coat coating material and a waterborne basecoat coating material both containing a core/shell type resin emulsion (A) in which the core portion is an acrylic resin (A1) and the shell portion is a polyurethane resin (A2), a water-soluble or water-dispersible polyurethane resin (B), a water-soluble or water-dispersible polyester resin (C), and a melamine resin (D), and, based on the combined resin solids content by mass of aforesaid components (A) to (C), the solids content by mass of component (A) is 5-25 mass %, the solids content by mass of component (B) is 45-65 mass %, the solids content by mass of component (C) is 20-40 mass %, and the solids content by mass of component (D) is 35-45 mass %.

Abstract: The present invention relates to a solventborne, pigmented coating composition having a solids fraction of at least 35%, which comprises, based on the total amount of the coating composition, 0.1 to 1.5 wt % of at least one copolymer (A), where the copolymer (A) is obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent, the mixture of monomers (a) to be polymerized consists of (a1) 10 to 60 mol % of at least one monomer of the formula (I) below where R1?C1 to C4 alkoxy, R2?C1 to C4 alkyl, and m=0 to 2, and also (a2) 40 to 90 mol % of at least one further olefinically unsaturated monomer, and the copolymer (A) possesses a glass transition temperature Tg of at least ?30° C. The present invention also relates to a method for producing a multicoat paint system using the coating composition, and to the multicoat paint systems themselves.

Abstract: A nonaqueous coating material composition and a coating produced from the coating material composition are provided. The coating material composition contains at least one polyhydroxyl group-containing component, at least one polyisocyanate group-containing component, at least one catalyst, and at least one urethane additive (PF) which has specific groups. The urethane additive (PF) is prepared by reacting 0.5 to 20 mol % of the isocyanate groups originally present in a polyisocyanate (PI) with a component (Ia) and 10 to 99.5 mol % of the isocyanate groups originally present in the polyisocyanate (PI) with a component (IIa). The component (Ia) contains at least one perfluoroalkyl group of a specific formula and one group reactive toward the isocyanate groups. The component (IIa) contains at least one silane group of a specific formula and one group reactive toward the isocyanate groups.

Abstract: The present invention relates to nonaqueous coating material compositions comprising (A) at least one polyhydroxyl group-containing component (A), (B1) at least one isocyanate and silane group-containing component (B1), and (D) at least one catalyst (D) for the crosslinking of silane groups, which composition comprises (B2) at least one isocyanate group-containing component (B2) which is different from component (B1) and which additionally has at least one perfluoroalkyl group of the formula (I) CR13—(CR22)f—??(I) where R1 and R2 independently of one another are H, F and/or CF3, but R1 and R2 may not both be H, and f is 1 to 20, preferably 3 to 11, more preferably 5 to 7. A further subject of the present invention are the coatings produced from these coating material compositions, and also their use.

Abstract: The present invention relates to fiber-plastics composites consisting of (I) at least one fiber material and (II) a plastics matrix, where the composite is characterized in that the plastics matrix is based on a two-component matrix material (IIa), where the two-component matrix material (IIa) comprises (1) a parent component comprising (A) at least one polycarbonatediol and (2) a hardener component comprising (C) at least one polyisocyanate-modified polyester with from 4 to 15% isocyanate content. The present invention also relates to a process for the production of the fiber-plastics composites and to use of these.

Abstract: An aqueous dispersion containing at least one copolymer, the copolymer being preparable by initially charging an aqueous dispersion of at least one polyurethane, and then polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane, where a water-soluble initiator is used, the metered addition of the olefinically unsaturated monomers is effected in such a way that a concentration of 6.0% by weight, based on the total amount of olefinically unsaturated monomers, in the reaction solution is not exceeded over the entire duration of the reaction, and the mixture of the olefinically unsaturated monomers contains at least one polyolefinically unsaturated monomer.

Abstract: Provided are aqueous resin solutions having unique rheologies and products incorporating the same. The water-based materials provided herein are thermo-thickening, and the materials increase dramatically in viscosity (at least 100 times) in a desired temperature range increase (20 C to <100 C) at ambient pressure. Suitable resins comprising a hydrophobic group and a hydrophilic group may be selected from an epoxy resin, a phenol-formaldehyde resin, a polyurethane resin, an acrylic resin, a polyester resin, an acrylic-urethane resin, a melamine resin, a melamine-formaldehyde resin, an amino resin, and combinations thereof. A specific epoxy functional resin/polymer suitable for the resin solutions are prepared by reacting (A) an epoxy pre-polymer of (1) one or more polyols and (2) one or more epoxy functional materials with (B) a di- or polyamine, thereby forming the aqueous thermo-thickening resin solution. The resin solutions are substantially free of cross-linking agents.

Abstract: The present invention relates to aqueous binder dispersions for cationic electrocoat materials, comprising as binders amine-modified, hydroxy-functional epoxy resins and comprising as crosslinker at least one fully blocked polyisocyanate blocked at least partly with 2,2-dimethyl-1,3-dioxolane-4-methanol, and also to the use of such cationic electrocoat materials for producing coating systems and to the use of crosslinkers based on polyisocyanates blocked with 2,2-dimethyl-1,3-dioxolane-4-methanol in aqueous binder dispersions.

Abstract: The present invention relates to an aqueous two-component primer composition comprising (1) a paint base component comprising (A) at least one polyurethane resin having an OH number of 5 to 60 mg KOH/g, (B) zinc phosphate, (C) at least one pigment, and (2) a curing component comprising (D1) at least one polyisocyanate which is an isocyanurate based on hexamethylene diisocyanate, (D2) at least one polyisocyanate which is a polyether-modified isocyanurate based on isophorone diisocyanate, where the stoichiometric ratio of isocyanate groups in the curing component to the complementary hydroxyl groups in the paint base component is greater than 2. The present invention further relates to a method for producing a coating on a metallic substrate, by applying the primer composition of the invention directly to a substrate. Moreover, the present invention relates to a substrate coated by the stated method.