Abstract: Disclosed are coating compositions comprising film-forming material with at least one reactive functional group G??, catalyst for the crosslinking of the silane groups, aprotic solvents, and at least one adduct with silane functionality which is prepared by an addition reaction of (a) at least one silane (S1) which has at least one functional group G? which is reactive with the complementary functional groups G? of the compound (O), and (b) at least one compound (O) which has at least one complementary functional group G? and at least one surface-active radical. Also disclosed are multicoat paint systems in which the transparent coating has been produced from these coating compositions, methods of making and use, as well as methods of improving the hardness and/or the scratch resistance of coatings.

Abstract: Disclosed are coating compositions comprising (a) at least one hydroxyl-containing compound (A), (b) at least one compound (B) having isocyanate groups, and (c) at least one catalyst (D) for the crosslinking of silane groups, said catalyst (D) comprising phosphorus. It is an aspect of the disclosed coating compositions that (i) one or more constituents of the coating composition contain hydrolyzable silane groups and (ii) the coating composition can be finally cured to a coating which has statistically distributed regions of an Si—O—Si network.

Abstract: The present disclosure provides multicoat systems exhibiting ultraviolet (UV) stability after ultraviolet exposure and moisture exposure. The systems comprise at least one primer (G), at least one pigmented coating (P) disposed on a surface of the primer, and at least one ultraviolet (UV) absorber which has an absorption maximum of at least 370 nm. The pigmented coating (P) may be comprised of two or more coatings (P1), (P2) to (Pn). The multicoat systems may also comprise a transparent coating material (T) to form a transparent coating (K). The present multicoat systems demonstrate ultraviolet stability, reduced delamination of the pigmented coat from the primer and are available in a variety of shades for use in the finishing, refinishing and coating of component parts. The present disclosure also provides for a process for producing the multicoat system, and provides for the use of the system.

Abstract: A method of improving the transfer efficiency of applying a topcoat layer to a primed component includes applying an organic solventborne, carboxyl functional olefin based polymer composition to a substrate to provide a primed component before electrostatically applying a coating composition comprising principal resin and crosslinker to the primed component to form a topcoat layer, wherein the carboxyl functional olefin based polymer is neutralized with at least one amine-containing compound to form a salted carboxyl functional polymer.

Abstract: Disclosed is a method for producing a multicoat color and/or effect painting system by applying a pigmented aqueous basecoat material to a substrate, forming a film from the applied coating, applying a clearcoat material to the film, and then curing the film together with the clearcoat material, wherein the pigmented aqueous basecoat material comprises at least one substituted cyclohexanol in an amount of 0.1% to 5% by weight, based on the weight of the pigmented aqueous basecoat material, the substituted cyclohexanol being selected from the group consisting of a cyclohexanol substituted in positions 2 and 5, a cyclohexanol substituted in positions 3 and 5, a monosubstituted cyclohexanol, and mixtures of two or more of the foregoing, wherein the substituents are selected from the group consisting of optionally branched alkyl groups having 1 to 5 C atoms, a bridging isopropylene group and mixtures of two or more of the foregoing.

Abstract: The invention relates to a method for the corrosion-inhibiting coating of metal surfaces, which in a first step involves cleaning the metal surface and optionally treating it with a pretreatment composition and in a second step involves coating the metal surface cleaned and optionally pretreated in step (1) with a primer (P) which comprises at least one binder (BM) and at least one crosslinking agent (V), and also at least one phosphorus-containing polyester component (A), (A) being an acidic esterification product of phosphonic acid, of monophosphoric acid and/or of polyphosphoric acid, and/or of the anhydrides thereof and/or of the esters thereof, with at least one polyester (B) which contains at least two hydroxyl groups.

Abstract: The invention relates to a composition which comprises at least one polyol component having a hydroxyl group content of 9% to 15% by weight relative to the total weight of the polyol component, and at least one isocyanate component having a free isocyanate group content of 10% to 15% by weight relative to the total weight of the isocyanate component. The polyol component comprises at least one polyol which is selected from the group of the polyether polyols, polyester polyols, and polyether polyester polyols. The isocyanate component comprises at least one di- or polyisocyanate-terminated polylactone prepolymer. The composition can be used as erosion-resistant coating material.

Abstract: The present invention relates to a method for producing a multicoat color and/or effect painting system by (1) applying a pigmented aqueous basecoat material to a substrate, (2) forming a polymer film from the coating applied in stage (1), (3) applying a clearcoat material to the resultant basecoat film, and then (4) curing the basecoat film together with the clearcoat film. The method of the invention comprises using in stage (1) a pigmented aqueous basecoat material which comprises at least one alkyl-substituted cycloaliphatic ketone in an amount of 0.1% to 5% by weight, based on the weight of the basecoat material.

Abstract: The disclosed method comprises applying a transparent coating composition to a plastics substrate, the composition comprising 30% to 60% by weight of a nanoparticles (B), 15% to 40% by weight, of urethane (meth)acrylates (A1) having 3 to 5 (meth)/acrylate groups per molecule, 0% to less than 10% by weight of urethane (meth)acrylates (A2) having more than 5 (meth)/acrylate groups per molecule, 0% to less than 10% by weight of urethane (meth)acrylates (A3) having less than 3 (meth)/acrylate groups per molecule, 55% to 80% by weight of compounds (C1) having 4 (meth)/acrylate groups per molecule, 0% to 15% by weight of compounds (C2) having 2 (meth)/acrylate groups per molecule, and 0% to 15% by weight of compounds (C3) having 3 (meth)/acrylate groups per molecule, the sum of the weight fractions of film-forming components (A1), (A2), (A3), (C1), (C2), and (C3) being in each case 100% by weight.

Abstract: The present invention relates to a method for producing a multicoat color and/or effect paint system, the method comprising (1) applying a pigmented aqueous basecoat to a substrate, the basecoat comprising from 0.1% to 5% by weight, based on the total weight of the basecoat, of at least one vinyl ether of the general formula R—O—CH?CH2 where R is an unsubstituted or substituted organic radical selected from the group consisting of alkyl, cycloalkyl, aryl, and alkaryl radicals having 4 to 18 carbon atoms, (2) forming a basecoat film from the coating applied in stage (1), (3) applying a clearcoat to the basecoat film, and then (4) curing the basecoat film together with the clearcoat.

Abstract: Disclosed is a method for producing a multicoat color and/or effect painting system by applying a pigmented aqueous basecoat material to a substrate, forming a film from the applied coating, applying a clearcoat material to the film, and then curing the film together with the applied clearcoat. The applied pigmented aqueous basecoat material comprises at least one ketone of the general formula R1-(C?O)—R2, the ketone being present in an amount of 0.1% to 5% by weight, based on the weight of the coating material, R1 being an optionally substituted aliphatic or cycloaliphatic radical having 1 to 10 C atoms, and R2 being an optionally substituted aliphatic or cycloaliphatic radical having 1 to 10 C atoms, and the sum of the C atoms present in R1 and R2 amounting to at least 5 C atoms.

Abstract: Scratch resistance and/or reflow of a refinish topcoat is improved by preparing the topcoat from a refinish topcoat coating composition comprising an unsaturated fatty acid ester polyol that does not undergo oxidative cure when the applied refinish topcoat coating composition is cured.

Abstract: Coating compositions comprising at least one hydroxyl-containing compound (A), at least one isocyanato-containing compound (B) and at least one urea-group-containing compound (H) different from (B), compound (H) comprising at least one structural unit selected from the group consisting of a structural unit (I) a structural unit (II) a structural unit (III) —NR??—C(O)—N(X—SiR?x(OR?)3-x)n(X?—SiR?y(OR?)3-y)m, and combinations of two or more of the foregoing, compound (H) being obtained by reacting an isocyanato-containing compound (HG) with amino-containing compounds, wherein in compound (H) more than 90 mol % of the isocyanate groups originally present in (HG) have undergone reaction to form the structural units (I), (II), (III), or combinations thereof, where R?, R??=hydrogen, alkyl, cycloalkyl, aryl or aralkyl; R, R?=alkyl, cycloalkyl, aryl or aralkyl; X, X?=linear and/or branched alkyl or cycloalkyl radical; x, y, n, m=0 to 2; and m+n=2.

Abstract: Disclosed are coating compositions including (A) at least one member selected from hydroxyl-containing polyacrylate, polymethacrylate, polyurethane, polyester, polysiloxane, and combinations of two or more of the foregoing, (B) at least one compound having blocked isocyanate groups and having alkoxysilane groups, wherein (i) the hydroxyl groups of component (A) are blocked with at least one acyclic orthoester, (ii) the compound (B) has at least one structural unit (II) —N(X—SiR?x(OR)3-x)n(X?—SiR?y(OR)3-y)m??(II), where R=hydrogen, cycloalkyl radical or alkyl radical, X,X?=linear and/or branched alkylene or cycloalkylene radical having 1 to 20 carbon atoms, R?=alkyl, cycloalkyl, aryl or aralkyl, n, m, x, y=0 to 2, and also m+n=2, and (i) at least 90 mol % of the alkoxysilane groups are ethoxysilane groups. Also disclosed are multistage coating processes, use of the compositions as clearcoat materials and application of the processes for automotive OEM finishing.

Abstract: The invention relates to coating compositions comprising (a) at least one hydroxyl-containing compound (A), (b) at least one saturated compound (B) having free and/or blocked isocyanate groups and containing at least in part hydrolyzable silane groups, and (c) at least one catalyst (D) for the crosslinking of silane groups, wherein the coating composition comprises as hydroxyl-containing compound (A) at least one hyperbranched, dendritic hydroxy-functional polyester in which on average at least one hydroxyl function of the polyester is esterified with at least one acid selected from the group of the isomeric C8 to C9 monocarboxylic acids. The present invention also provides a multistage coating method using these coating compositions, and also the use of the coating compositions as clearcoat material for producing multicoat effect and/or color paint systems, and use of the coating method for automotive OEM finishing and automotive refinish.

Abstract: The invention relates to an aqueous coating material for metallic substrates, comprising a water-dispersible and/or water-soluble polymer P with covalently bonded ligands A, which form chelates with the metal ions released during the corrosion of the substrate and/or with the substrate surface, and having crosslinking functional groups B, which with themselves, with further complementary functional groups B? of the polymer P and/or with further functional groups B and/or B? are able to form covalent bonds to crosslinkers V.

Abstract: An adhesion promoter, a coating composition containing the adhesion promoter, and a method for preparing the adhesion promoter and coating. The adhesion promoter is an olefin based polymer having at least one amine containing compound. The amine may be used as a catalyst for the coating.

Abstract: Disclosed are curable aqueous coating compositions comprising at least one polyurethane (A) as binder, at least one laminar metallic effect pigment (B), and at least one inorganic thickener C1) selected from the group of the phyllosilicates, and at least one organic thickener C2) selected from the group of the (meth)acrylic acid-(meth)acrylate copolymer thickeners and polyurethane thickeners, where the amount of B), based on the total binder content of the coating material composition is <9% by weight, the total solids based on the coating material composition is between 12.5% and 17% by weight, the total amount of the thickeners C1 and C2), based on the total binder content of the coating composition is <12.5% by weight, the weight ratio of C2) to C1) is >0.4, and the amount of B), based on the coating material composition, is between 1.2 and 2.3% by weight.

Abstract: Disclosed is a coating composition based on aprotic solvents and comprising at least one hydroxyl-containing compound (A) and at least one compound (B) having isocyanate groups and having at least one silane group of the formula (I) —X—Si—R?xG3-x??(I) with G=identical or different hydrolyzable groups, R?=hydrogen, alkyl or cycloalkyl, X=organic radical, R?=alkyl, cycloalkyl, aryl or aralkyl, x=0 to 2, and characterized in that (i) the compound (B) containing isocyanate groups and silane groups comprises uretdione groups, and (ii) the compound (B) has been prepared from a linear aliphatic diisocyanate. The present invention additionally provides multistage coating methods using these coating compositions, and the use of the coating compositions as clearcoat, and application of the coating method for automotive refinish and/or for the coating of plastics substrates.

Abstract: A coating composition curable with actinic radiation, or thermally and with actinic radiation, comprising (A) at least one unsaturated urethane (meth)acrylate and (B) at least one unsaturated melamine (meth)acrylate, wherein the ratio of the weight fractions of components (A) and (B) is between (A):(B)=1:1 and (A):(B)=1:5.