Basf Coatings Gmbh

Basf Coatings Ag

Basf Lacke+farben Ag

Wilfried Stübbe

Manuela Niemeier

Andreas Poppe

Elke Westhoff

Matthijs Groenewolt

Simone Hesener

Peter Betz

Günter Klein

Heinz-Peter Rink

Wolfgang Bremser

Ulrike Röckrath

Horst Hintze-Brüning

Georg Wigger

Sabine Holtschulte

Peter Mayenfels

Britta Schnieders

Alexandra Steffens

Fritz Bartol

Björn Feldmann

Beate Gebauer

Dunja Mikolajetz

Oliver Hilge

Wilma Nimz

Dunja Köppen

Jens-Dieter Fischer

Angelika Bartelt

Disclosed are aqueous coating compositions comprising at least one hydroxyl-containing compound (A), at least one compound (B) having isocyanate groups and also having hydrolyzable silane groups, and at least one catalyst (C) wherein the compound (B) has 10 mol % to less than 90 mol % of at least one structural unit (I)&#x2014;N(X&#x2014;SiR&#x2033;(OR')3-)(X&#x2032;&#x2014;SiR&#x2033;(OR&#x2032;)3-)&#x2003;&#x2003;(I)Where R&#x2032;=hydrogen, alkyl or cycloalkyl, X, X&#x2032;=linear and/or branched alkylene or cycloalkylene radical having 1 to 20 carbon atoms, R&#x2033;=alkyl, cycloalkyl, aryl or aralkyl, n=0 to 2, m=0 to 2, m+n=2, and x, y=0 to 2, and more than 10 to 90 mol % of at least one structural unit (II) &#x2014;Z&#x2014;(X&#x2014;SiR&#x2033;x(OR&#x2032;)3-x) (II), where Z=&#x2014;NH&#x2014;, &#x2014;NR&#x2014;, &#x2014;O&#x2014; or &#x2014;S&#x2014;, where R=alkyl, cycloalkyl, aryl or aralkyl, and x, X, R&#x2032; and R&#x2033; have the definition indicated for formula (I).

Aqueous polyurethane coating material and coatings produced therefrom and having high scratch resistance and good chemicals resistance

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)&#x2014;N(X&#x2014;SiR&#x2033;(OR'))(X&#x2032;&#x2014;SiR&#x2033;(OR&#x2032;))&#x2003;&#x2003;(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)&#x2014;Z&#x2014;(X&#x2014;SiR&#x2033;(OR&#x2032;))&#x2003;&#x2003;(II).

Coating agents having high scratch resistance and weathering stability

The present invention relates to a coating composition comprising

Coating agent having high scratch resistance and high weathering resistance

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.

Use of partially silanized polyisocyanate-based compounds as crosslinking-agents in coating compositions, and coating compositions comprising the compounds

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.

Oligomers and polymers containing hydrolysates and/or condensates of epoxide groups and silane groups, method for their production and use thereof

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.

Use of phosphonic acid diesters and diphosphonic acid diesters and silane group containing, curable mixtures containing phosphonic acid diesters and diphosphonic acid diesters

An aqueous dispersion with a pH of from 2 to 7, comprising

Aqueous dispersion of inorganic nanoparticles, method for the production and use thereof

Transparent coatings with a thickness of at least 30 &#x3bc;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.

Coatings, methods for producing the same, and the use thereof

The invention relates to a sol-gel coating material containing (A) an acrylate copolymer solution containing at least one acrylate copolymer (A1); (B) a parent varnish which can be prepared by hydrolysis and condensation of at least one hydrolysable silane (B1) of the general formula (I) SiR, in which the variable R=hydrolysable groups, hydroxy groups and non-hydrolysable groups, provided that there should be at least one, preferably two, hydrolysable groups; and (C) an additive solution containing c1) at least one ethylenically unsaturated compound containing at least one epoxide group; c2) at least one silane (B1) with at least one non-hydrolysable group R presenting at least one epoxide group; and c3) at least one adduct of at least one silane (B1) with at least one non-hydrolysable group R presenting at least one amino group and at least one cyclic ethylenically unsaturated dicarboxylic acid anhydride. The invention also relates to the use of said sol-gel coating material for producing scratchproof sol-gel coatings.

Sol-gel coating for single-layer or multi-layer varnishes

Process for the production of a two-coat finish on a substrate surface

Growing community of inventors

Greven, Germany

Wilfried Stübbe