Basf Coatings Gmbh

Basf Coatings Ag

Basf Corporation

Hardy Reuter

Bernhard Steinmetz

Peter Hoffmann

Peggy Jankowski

Nadia Luhmann

Karl-Heinz Grosse-Brinkhaus

Michael Matura

Walter Jouck

Ulrich Heimann

Matthias Blohm

Dagmar Schemschat

Dirk Eierhoff

G&uuml;nther Ott

Holger Krumm

Thomas Zihang

Stephanie Pei Yii Goh

Bianca Goeb

Carsten Teichmann

Bianca Gob

Timothy S December

Andreas Poppe

Joachim Woltering

Stephan Schwarte

Ulrike R&ouml;ckrath

Susanne Piontek

Günther Ott

Michael Hartung

Silke Przybilla

Souichi Mori

Jorn Lavalaye

Joerg Schwarz

Audree Andersen

Hisayuki Nakashima

Karl-Heinz Grosse Brinkhaus

Oliver Johannpoetter

Patrick Wilm

Cesar G Ortiz

Sina Winnen

Ingeborg Grempels

Gunther Ott

Walburga Kathmann

Georg Sch&ouml;n

Bing Hsieh

Adam Stals

Thierry Herning

Hans-Otto Köbbert

Rolf Döring

Karl-Heinz Groβe-Brinkhaus

Guenter Ott

Juergen Bauer

Roland Ratz

Bianca Göb

Marita Buermann

Vera Diepenbrock

Jurgen Bauer

Jürgen Bauer

Hans-Otto Koebbert

Described herein are aqueous coating compositions including at least one dispersion of core/shell particles containing a polyurethane resin as core portion and a crosslinked acrylic resin as shell portion and at least one aqueous polyurethane-polyurea dispersion containing crosslinked polyurethane-polyurea particles. Also described herein is a method for forming a multilayer coating on a substrate using the aqueous coating compositions as basecoat compositions. Also described herein is a multicoat paint system produced by the method.

Water-based coating composition and method for forming multilayer coating film using said composition

The present invention relates to a pigmented aqueous basecoat material comprising a polyether-based reaction product which is preparable by reaction of (a) at least one cyclic carboxylic anhydride comprising a free carboxylic acid group and/or the halide of a carboxylic acid group with (b) at least one polyether of the general structural formula (I) in which R is a Cto Calkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 800 to 4000 g/mol, the components (a) and (b) being used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7 and the resulting reaction product possessing an acid number of 10 to 50 mg KOH/g.

Carboxy-functional, polyether-based reaction products and aqueous basecoat materials comprising the reaction products

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%, obtainable by The present invention also relates to basecoat materials comprising the dispersion (PD), and to multicoat paint systems produced using the basecoat materials.

Method of preparation of aqueous polyurethane-polyurea dispersion and aqueous base paint containing said dispersion

Provided herein is a pigmented aqueous basecoat material including an aqueous polyurethane-polyurea dispersion (PD) having polyurethane-polyurea particles present in the dispersion, an average particle size (volume average) of 40 to 2000 nm, and a gel fraction of at least 50 wt %. The polyurethane-polyurea particles, in each case in reacted form, include: at least one polyurethane prepolymer containing isocyanate groups and including anionic groups and/or groups which can be converted into anionic groups, and at least one polyamine comprising two primary amino groups and one or two secondary amino groups. The aqueous basecoat material includes a specific solvent composition. Also provided herein is a method of using basecoat materials including the dispersion (PD) and multicoat paint systems produced using the basecoat materials.

Aqueous base paints containing cross-linked polyurethane binders and a special solvent composition

The present invention relates to a reaction product preparable by reacting 

Dimer fatty acid-containing reaction product and coating composition comprising the reaction product

Described herein is a method for producing a coating system on a substrate, including producing a cured basecoat film on the substrate by applying a pigmented aqueous basecoat material to the substrate and subsequently curing the basecoat material, wherein the basecoat material includes a polyether-based reaction product which is preparable by reaction of in which

Method for producing a coating system with an aqueous basecoat

Provided herein is a pigmented aqueous basecoat material including a hydroxy-functional polyether-based reaction product that is prepared by a urethane group-forming reaction of: R is a Cto Calkylene radical, and n is selected accordingly such that a polyether (b) possesses a number-average molecular weight of 500 to 5000 g/mol,the components (a1) and (a2) being used in a molar ratio of 1.8/1.7 to 3.0/1.0, and the resulting component (a) having an isocyanate content of 0.5 to 10.0% with (b) at least one organic polyol.

Hydroxy-functional polyether-based reaction products and aqueous base paint which contains the reaction products

The present invention relates to a pigmented aqueous basecoat material comprising a polyether-based reaction product which is preparable by reaction of (a) at least one cyclic carboxylic anhydride comprising a free carboxylic acid group and/or the halide of a carboxylic acid group with (b) at least one polyether of the general structural formula (I) in whichR is a Cto Calkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 800 to 4000 g/mol, the components (a) and (b) being used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7 and the resulting reaction product possessing an acid number of 10 to 50 mg KOH/g.

The present invention relates to a dimer fatty acid/dimer diol reaction product which is preparable by reacting (a) dimer fatty acids with (b) at least one dimer diol, where components (a) and (b) are used in a molar ratio of 0.7/2.3 to 1.3/1.7 and the resulting dimer fatty acid/dimer diol reaction product possesses a number-average molecular weight of 1200 to 5000 g/mol and an acid number &#x3c;10 mg KOH/g. The invention further relates to a pigmented aqueous basecoat material which comprises this dimer fatty acid/dimer diol reaction product, and also to the use of said dimer fatty acid/dimer diol reaction product in pigmented aqueous basecoat materials. It relates, further, to a method for producing multicast paint systems, and also to the multicoat paint systems producible by means of said method. The present invention relates, furthermore, to the refinishing of defects on multicoat paint systems.

Dimer fatty acid/dimer diol reaction product and use thereof in coating materials

Aqueous polyurethane-polyurea dispersion and aqueous base paint containing said dispersion

A pigmented aqueous basecoat material is disclosed. The pigmented aqueous basecoat material includes a polyether-based reaction product which is preparable by a reaction of trimesic acid with at least one polyether of the general structural formula (I) R is a Cto Calkylene radical and n is selected accordingly such that the at least one polyether possesses a number-average molecular weight of 500 to 5000 g/mol. The trimesic acid and the at least one polyether are used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7 and the resulting reaction product possesses an acid number of 10 to 50 mg KOH/g.

Carboxy-functional polyether-based reaction products and aqueous base coats containing the reaction products

The present invention relates to a pigmented aqueous basecoat material including a polyether-based reaction product which is preparable by reaction of (a) at least one carboxy-functional component which is preparable by esterification reaction of at least one dihydroxycarboxylic acid (a1) with at least one dicarboxylic acid (a2) and/or the anhydride of a dicarboxylic acid (a2), the components (a1) and (a2) being used in a molar ratio of 0.5/3.0 to 1.7/1.8, with (b) at least one polyether of a general structural formula (I) in which R is a Cto Calkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 500 to 5000 g/mol, the components (a) and (b) being used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7, and the resulting reaction product possessing an acid number of 10 to 50 mg KOH/g.

Carboxy-functional polyether-based reaction products and aqueous base paints containing the reaction products

The present invention relates to a pigmented aqueous basecoat material comprising a polyether-based reaction product which is preparable by reaction of (a) at least one compound of the formula (I)X&#x2014;Y&#x2014;X&#x2003;&#x2003;(I)in whichXand X, independently of one another, are each a functional group which is reactive toward hydroxyl groups, and Y is a divalent aliphatic or araliphatic, carboxy-functional organic radical having a number-average molecular weight of 100 to 1000 g/mol,with(b) at least one polyether of the general structural formula (II) in whichR is a Cto Calkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 200 to 4000 g/mol, where components (a) and (b) are used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7 and the resulting reaction product possesses a number-average molecular weight of 500 to 15 000 g/mol and an acid number of 10 to 120 mg KOH/g.

Carboxy-functional polyether-based reaction products and aqueous basecoat materials comprising said products

A dimer fatty acid-polyether-reaction product prepared by reacting a composition containing at least 80 wt % of one or more dimer fatty acids with at least one polyether of application formula (I) in a molar ratio of 0.7/2.3 to 1.6/1.7. The reaction product has a number-average molecular weight of 4800 to 40000 g/mol and an acid number of less than 10 mg KOH/g.

Dimer fatty acid-polyether-reaction product and coating composition comprising the reaction product

The present invention relates to a pigmented aqueous basecoat material comprising a carboxy-functional dimer fatty acid-based reaction product which is preparable by reaction of (a) dimer fatty acids with (b) at least one compound of the general structural formula (I) where R is a Cto Calkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 120 to 6000 g/mol, components (a) and (b) are used in a molar ratio of at least 1/1 and the resulting reaction product possesses a number-average molecular weight of 1000 to 20 000 g/mol and an acid number of 10 to 120 mg KOH/g.

Carboxy-functional dimer fatty acid-based reaction products and aqueous basecoat materials comprising said products

Growing community of inventors

Muenster, Germany

Hardy Reuter