Abstract: The invention relates to moisture-curing coating compositions based on aprotic solvents, comprising (A) at least one binder having alkoxysilane groups and (B) at least one crosslinking catalyst, characterized in that said composition comprises as binder (A) at least one polyacrylate and/or poly-methacrylate which is obtainable using one or more ethylenically unsaturated monomers (a1) of the formula (I) with R=hydrogen or methyl radical, R?=hydrogen, alkyl or cycloalkyl, and R?=alkyl, cycloalkyl, aryl or aralkyl, it being possible for the carbon chain to be interrupted by nonadjacent oxygen groups, sulfur groups or groups NRa, with Ra=alkyl, cycloalkyl, aryl or aralkyl, and x=0 to 2, and as crosslinking catalyst at least one phosphorous- and nitrogen-containing catalyst (B).

Abstract: The invention relates to the use of partly silanized compounds based on polyisocyanate as crosslinking agents with heightened refractive index in curable coating compositions, more particularly in clearcoat materials for automotive finishing. The invention likewise relates to a coating composition which comprises these compounds as crosslinking agents, and to the use of the coating composition to produce a coating.

Abstract: Hydrolysates and/or condensates of epoxy- and silane-functional oligomers and polymers, prepared by hydrolyzing and/or condensing at least one oligomer and/or polymer (A) containing at least one epoxide group (a1) and at least one hydrolyzable silane group (a2); and also (meth)acrylate copolymers (A) containing lateral and/or terminal epoxide groups (a1) and lateral and/or terminal hydrolyzable silane groups (a2), in a molar ratio (a1): (a2) of from 15:1 to 1: 1.5, processes for preparing them, and their use.

Abstract: Disclosed herein is a silane-functional mixture, comprising at least one phosphonic diester (A), at least one diphosphonic diester (A), or at least one phosphonic diester and one diphosphonic diester (A), and at least one compound (B) comprising at least two condensable silane groups.

Abstract: Disclosed herein are thermoplastic nanoparticles with a glass transition temperature of 30 to 120° C. prepared by hydrolysis and condensation of a compound (Ia) (D-K—X—)mA{—X—K[—B(—Y)n]p}q or (Ib) (D-K—X—)mB{—X—K[-A(—Y)n]p}q (Ib) where m is 1 to 5; n is 1 to 3; p is 1 or 2; q is 1 to 5; A is a hardening structural element which; B is a softening, flexibilizing structural element; D is the radical of a blocking agent for isocyanate groups —NCZ, in which Z=oxygen or sulfur atom; X is a group of the general formula (II) —NH—C(Z)—; K is a divalent or trivalent atom or divalent or trivalent linking functional group; Y is a group of the general formula (III) —SiErF3?r, where r is 1 to 3; E is a hydrolyzable atom or radical, and F is a nonhydrolyzable radical; processes for preparing them, and their use.

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: Hydrolysates and/or condensates of epoxy- and silane-functional oligomers and polymers, prepared by hydrolyzing and/or condensing at least one oligomer and/or polymer (A) containing at least one epoxide group (a1) and at least one hydrolyzable silane group (a2); and also (meth)acrylate copolymers (A) containing lateral and/or terminal epoxide groups (a1) and lateral and/or terminal hydrolyzable silane groups (a2), in a molar ratio (a1):(a2) of from 1.5:1 to 1:1.5, processes for preparing them, and their use.

Abstract: Disclosed are coating compositions comprising at least one hydroxyl-containing compound (A) and at least one isocyanato-containing compound (B), wherein one or more of the constituents of the coating composition comprise between 2.5 and 97.5 mol %, based on the entirety of structural units (I) and (II), of at least one structural unit of the formula (I) —N(X—SiR?x(OR?)3-x)n(X?—SiR?y(OR?)3-y)m ??(I) and between 2.5 and 97.5 mol %, based on the entirety of structural units (I) and (II), of at least one structural unit of the formula (II) —Z—(X—SiR?x(OR?)3-x) ??(II).

Abstract: Disclosed are coating compositions comprising (a) at least one hydroxyl-containing compound (A), (b) at least one compound (B) having free and/or blocked isocyanate groups, and (c) at least one catalyst (D) for the crosslinking of silane groups, where (i) one or more constituents of the coating composition contain hydrolyzable silane groups and (iii) the coating composition can be finally cured to a coating which has statistically distributed regions of an Si—O—Si network. The finally cured coating obtained from the coating composition has a post-crosslinking index (PCI) of less than 2, wherein (PCI) is defined as the ratio of the storage modulus E?(200) at 200° C. to the minimum of the storage modulus E?(min) at a temperature above the measured glass transition temperature Tg.

Abstract: Silanes of the formula: [(ZmRnSi—R1o—)pR2q—Y—C(X)—Y—]rG[—Y—(X)C—Y—R3]s??(I), in which m+n=3; m=1, 2 or 3; n=0, 1 or 2; o=0 or 1, and q=1 if o=0; p=1, 2, 3 or 4; q=0 or 1, and p=1 if q=0; r, s=1, 2 or 3; and Z is a hydrolyzable atom or group; R is a nonhydrolyzable group without an epoxide group; R1 is a divalent group; R2 is a (p+1)-valent group; R3 is a nonhydrolyzable, epoxy-containing group; X is an oxygen atom and/or sulfur atom; G is an (r+s)-valent cyclic group; Y is an oxygen atom, sulfur atom or imino group >NR4 where R4=hydrogen atom, group R, group (ZmRnSi—R1o—)pR2q—, group R3—, group (ZmRnSi—R1o—)pR2q—NH—C(X)— or group R3—NH—C(X)—; processes for their preparation, and their use.

Abstract: Autocatalyzed, thermally curable compositions free from external catalysts and comprising condensates of silanes which contain at least one of hydrolyzable atoms and hydrolyzable groups and processes for preparing them, and their use for producing thermally cured compositions.

Abstract: An aqueous dispersion with a pH of from 2 to 7, comprising (A) at least one swellable polymer or oligomer containing anionic and/or potentially anionic functional groups, (B) surface-modified, cationically stabilized, inorganic nanoparticles of at least one kind, and (C) at least one amphiphile; and its use for producing highly scratch-resistant coatings, moldings, and self-supporting films.

Abstract: Liquid, thermally curable mixtures comprising, (A) low molecular weight polyols having at least three hydroxyl groups and a hydroxyl group content corresponding to a theoretical OH number of 800 to 1900 mg KOH/g, (B) compounds selected from the group consisting of cyclic and acyclic C9-C16 alkanes functionalized with hydroxyl groups or hydroxyl and at least one thiol group, and (C) low molecular weight or oligomeric compounds having reactive functional groups (c1) complementary to hydroxyl groups and thiol groups, processes for preparing them, and their use.

Abstract: Disclosed herein is a silane-functional mixture, comprising at least one phosphonic diester (A), at least one diphosphonic diester (A), or at least one phosphonic diester and one diphosphonic diester (A), and at least one compound (B) comprising at least two condensable silane groups.

Abstract: Disclosed herein is a thermally curable mixture, comprising at least one phosphonic diester (A), at least one diphosphonic diester (A), or at least one phosphonic diester and at least one diphosphonic diester (A); and at least one compound (B) which can be reacted by transesterification, transamidation, self-condensation of N-hydroxyalkylamino groups, self-condensation of N-alkoxyalkylamino groups, transacctalization of N-alkoxyalkylamino groups, acctalization of N-hydroxyalkylamino groups, or a combination thereof. Also disclosed is a process for making the thermally curable mixture, and a cured material comprising the product of thermally curing the mixture.

Abstract: The invention relates to a coating material comprising (A) at least 50% by weight, based on the amount of nonvolatile substances in the coating material, of at least one compound (A1) containing at least one reactive group of the formula(I) —NR—C(O)—N—(X—SiR?x(OR?)3-x)n(X?—SiR?y(OR?)3-y)m ??(I) where R=hydrogen, alkyl, cycloalkyl, aryl or aralkyl, the carbon chain being uninterrupted or interrupted by nonadjacent oxygen, sulfur or NRa groups, with Ra=alkyl, cycloalkyl, aryl or aralkyl, R?=hydrogen, alkyl or cycloalkyl, the carbon chain being uninterrupted or interrupted by nonadjacent oxygen, sulfur or NRa groups, X, X?=linear and/or branched alkylene or cycloalkylene radical of 2 to 20 carbon atoms, R?=alkyl, cycloalkyl, aryl or aralkyl, the carbon chain being uninterrupted or interrupted by nonadjacent oxygen, sulfur or NRa groups, n=0 to 2, m=0 to 2, m+n=2, and x, y=0 to 2, (B) a catalyst for the crosslinking of the —Si(OR?)3-X(y) units, and (C) an aprotic solvent or a mixture of aprotic solvents.

Abstract: Transparent coatings with a thickness of at least 30 ?m, a relative elastic resilience to DIN 55676 of at least 70%, and a scratch resistance corresponding to a score of not more than 2 in the steel wool scratch test to DIN 1041 after 10 double strokes; process for producing them, and their use.

Abstract: Autocatalyzed, thermally curable compositions free from external catalysts and comprising condensates of silanes which contain at least one of hydrolyzable atoms and hydrolyzable groups and processes for preparing them, and their use for producing thermally cured compositions.

Abstract: Curable compositions comprising deagglomerated barium sulfate containing at least one dispersant and at least one crystallization inhibitor and having a primary particle size <0.5 ?m, preferably <0.1 ?m, in particular <30 nm, and their use.

Abstract: Surface-modified nanoparticles whose surface is covered completely or near-completely with (A) modifying groups which are attached covalently to the surface via linking functional groups (a) and contain inert spacer groups (b) and contain reactive functional groups (c) which are connected via the groups (b) to the groups (a) and are inert toward the reactive functional groups of the surface to be modified, (B) modifying groups which are attached covalently to the surface via linking functional groups (a) and contain inert groups (d) having a smaller hydrodynamic volume VH than the inert spacer groups (Ab), and (C) modifying groups which are attached to the surface via linking functional groups (a) which contain at least one silicon atom, contain inert groups (e), and have a smaller hydrodynamic volume VH than the modifying groups (A); dispersions comprising the nanoparticles, processes for preparing them, and their use.