Basf Coatings Ag

Basf Coatings Gmbh

Basf Lacke+farben Ag

Basf Corporation

Basf Coating Ag

Bask Lacke + Farben Aktiengesellschaft De/de

Stephan Schwarte

Egon Wegner

Ulrich Poth

Joachim Woltering

Hubert Baumgart

Wolfgang Bremser

Susanne Piontek

Norbert Löw

Wilma Löcken

Arnold Dobbelstein, Deceased

Frank Jansing

Manfred Reimann

Thomas Krüger

Harald Angerm&uuml;ller

Walter Lassmann

Manfred Dangschat

Peter Sonntag

Willi Vesper

Carlos Westermann

Klaus Eikelmann

Harald Angermüller

Heinz-Peter Rink

Bernhard Steinmetz

Hardy Reuter

Ulrike R&ouml;ckrath

Cathrin Corten

Peggy Jankowski

Gerhard Reusmann

Georg Wigger

Dirk Eierhoff

G&uuml;nther Ott

Michael Matura

Nadia Luhmann

Michael Hartung

Joerg Schwarz

Heinrich Wonnemann

Christian Kunkelmann

Dietmar Chmielewski

Horst Grosch

Ingo Lüer

Peter-Heinz Rink

Jose-Ignacio Anaya-Sanz

Alain Ledantec

Ju/ Rgen Niemann

J Urgen Niemann

Cornelia Petri-Huber

Michael Bruennemann

Ulrich Horstkoetter

Hendrik Czaudema

Sandra Kloetter

Olga Lemmer

Melina Rutte

Kerstin Ziegler

Kurt Hupp

Described herein is a process for producing an effect pigment paste including at least steps (1) and (2), namely producing a mixture including at least one effect pigment (a) and at least one polymer (b) in a liquid medium (c) (step (1)), and dispersing the mixture obtained after step (1) to obtain the effect pigment paste (step (2)), where step (2) is performed using a shaker and the effect pigment paste obtained after the performance of step (2) has ended is free of grinding media. Also described herein are an effect pigment paste producible by this process, containing an amount of effect pigment of at least 5% by weight, based on the total weight of the effect pigment paste, and a method of using a shaker for dispersing of effect pigments for production of an effect pigment paste.

Method for producing effect pigment pastes using a vibrator

Described herein are an aqueous pigment paste including at least one color pigment (a) and at least one polymer (b) which is preparable by successive radical emulsion polymerization of three monomer mixtures (A), (B) and (C) of olefinically unsaturated monomers in water, an aqueous basecoat material which is preparable by admixing the pigment paste to at least one aqueous binder-containing component suitable for preparing the basecoat material, a method for producing a multicoat paint system using this basecoat material, and use of the polymer (b) for dispersing color pigments within an aqueous pigment paste.

Aqueous color pigment pastes containing a polymerizate, and basecoats produced therefrom

The invention relates to physically, thermally and physically, or thermally curable aqueous coating compositions comprising

Aqueous, pigmented coating agent, method for the production thereof, and the use thereof for the production of multilayer coats of paint

The present invention relates to a pigment paste comprising at least one aqueous dispersion comprising at least one copolymer, said copolymer being preparable by (i) initially charging an aqueous dispersion of at least one polyurethane, and then (ii) polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane from (i), in which (a) a water-soluble initiator is used, (b) the olefinically unsaturated monomers are metered in such that a concentration of 6.0% by weight, based on the total amount of olefinically unsaturated monomers used for polymerization, in the reaction solution is not exceeded over the entire reaction time, and (c) the mixture of the olefinically unsaturated monomers comprises at least one polyolefinically unsaturated monomer, and further comprising a pigment, where the weight ratio of pigment to copolymer is at least 1.5. The invention further relates to the use of the copolymer for dispersion of pigments.

Pigment pastes comprising an aqueous dispersion of a copolymer

An aqueous effect pigment paste comprising

Aqueous effect pigment paste, method for producing the same and the use thereof

Process for producing a color and/or effect coating system on a substrate by applying an aqueous color and/or effect solid-color topcoat material or&#x2014;alternatively&#x2014;an aqueous color and/or effect basecoat material and a clearcoat material (wet-on-wet technique) to the substrate and curing the resultant coating films, which after curing have a water vapor permeability &#x3b4;&#x3e;6.0 mg/h&#xb7;m&#xb7;bar or p&#x3e;286.4 g&#xb7;100 &#x3bc;m/m&#xb7;d, where d stands for day, when the coating material contains no metal flake pigments; or have a water vapor permeability &#x3b4;&#x3e;4.0 mg/h&#xb7;m&#xb7;bar or p&#x3e;190.92 g&#xb7;100 &#x3bc;m/m&#xb7;d, when the coating material contains metal flake pigments.

Method for producing color giving and/or effect giving lacquer coatings

The invention relates to a method for producing chromophore and/or effect giving multilayer lacquers according to the wet-on-wet method. A water base lacquer is applied which contains at least one graft copolymer containing (A) at least one (meth)acrylate copolymer and (B) at least one polyurethane. The graft copolymer can be produced by (1) dispersing at least one hydrophilic or hydrophobic self cross-linking polyurethane (B) with a statistical average of at least one terminal and/or at least one lateral olefinically unsaturated group and at least one blocked isocyanate group per molecule in an aqueous medium. (2) A mixture of a at least one monomer (a1) with at least one isocyanate reactive functional group at last one monomer (a2) that can be copolymerised therewith is subsequently radically copolymerised in an emulsion in the presence of the polyurethane (B) or the polyurethanes (B). A powder slurry transparent lacquer layer is added to the resulting base lacquer layer. The base lacquer layer and the transparent lacquer layer are hardened together. The invention also relates to novel hydrophilic or hydrophobic self cross-linking polyurethanes (B) with at least one lateral and/or at least one terminal olefinically unsaturated group and at least one lateral blocked isocyanate group per molecule and graft copolymers on the basis of said polyurethanes (B) as well as the use thereof.

Method for multilayer coatings with self-crosslinking graft polyurethane copolymers, self-crosslinking polyurethanes and graft copolymers thereof

A process for improving the intercoat adhesion in a multicoat paint system utilizing a primer coat, an aqueous basecoat, and a clearcoat, where the multicoat paint system has been produced by means of a wet-on-wet technique. The clearcoat is produced using a pseudoplastic powder clearcoat slurry prepared by a secondary dispersion process or a melt emulsification process. The aqueous basecoat material used to produce the aqueous basecoat comprises a dispersed graft copolymer whose particles are composed of a hydrophobic core of copolymerized olefinically unsaturated monomers and of a hydrophilic shell which comprises a polyurethane, where said copolymer is prepared by free-radical (co)polymerization of the monomers in the presence of at least one polyurethane containing specially selected olefinically unsaturated groups.

Method for improving the adhesion of the intermediate layer in a multi-paint finish

An aqueous coating material curable physically, thermally, or both thermally and with actinic radiation, comprising

Aqueous coating material that can be hardened physically, thermally or thermally and with actinic radiation and the utilization thereof

A solventborne coating material curable physically, thermally, or thermally and with actinic radiation, comprising

Solventborne coating substance that can be cured physically, thermally or thermally and by using actinic radiation and use thereof

The invention relates to a method for producing chromophore and/or effect giving multilayer lacquers according to the wet-on-wet method. A water base lacquer is applied which contains at least one graft copolymer containing (A) at least one (meth)acrylate copolymer and (B) at least one polyurethane. The graft copolymer can be produced by (1) dispersing at least one hydrophilic or hydrophobic self cross-linking polyurethane (B) with a statistical average of at least one terminal and/or at least one lateral olefinically unsaturated group and at least one blocked isocyanate group per molecule in an aqueous medium. (2) A mixture of a at least one monomer (a1) with at least one isocyanate reactive functional group at last one monomer (a2) that can be copolymerized therewith is subsequently radically copolymerized in an emulsion in the presence of the polyurethane (B) or the polyurethanes (B). A powder slurry transparent lacquer layer is added to the resulting base lacquer layer. The base lacquer layer and the transparent lacquer layer are hardened together. The invention also relates to novel hydrophilic or hydrophobic self cross-linking polyurethanes (B) with at least one lateral and/or at least one terminal olefinically unsaturated group and at least one lateral blocked isocyanate group per molecule and graft copolymers on the basis of said polyurethanes (B) as well as the use thereof.

Method of producing multilayer color and/or effect paint systems utilizing self-crosslinking graft copolymers of polyurethane

Polyurethane-modified addition copolymers preparable by free-radically (co)polymerizing an olefinically unsaturated monomer (a) in an aqueous or nonaqueous medium comprising at least one reaction product (A/B) of (A) at least one addition copolymer containing on average per molecule at least 0.1 isocyanate-reactive functional groups and preparable by free-radical copolymerization of at least 

Polyurethane-modified copolymers, method for their production and the use thereof

A hydrophilic or hydrophobic polyurethane containing on average per molecule at least one olefinically unsaturated structural unit selected from the group consisting of pendant, internal, and terminal, acyclic and cyclic terpene units; graft copolymers of the polyurethane with olefinically unsaturated monomers, processes for preparing the polyurethane and the graft copolymers, and their use for preparing coating materials, adhesives, and sealing compounds.

Polyurethane and polyurethane-based mixed graft polymers and their use for producing coating materials, adhesives and sealing compounds

A self-crosslinking, branched polyurethane preparable by reacting

Polyurethane, method for production and use thereof

A hydrophilic or hydrophobic polyurethane having at least one olefinically unsaturated group selected from the group consisting of pendant olefinically unsaturated groups, terminal olefinically unsaturated groups, and mixtures thereo wherein the pendant olefinically unsaturated groups are sele consisting of pendant olefinically unsaturated groups which are attached to a cycloaliphatic group which represents a link in the polymer main chain and pendant olefinically unsaturated groups which are present as a double bond in a cycloolefinic group which constitutes a link in the polymer main chain, and the terminal olefinically unsaturated groups are selected from the group consisting of terminal olefinically unsaturated groups which are attached to a cycloaliphatic group which forms an endgroup of the polymer main chain and terminal olefinically unsaturated groups which are present as a double bond in a cycloolefinic structure which forms en endgroup of the polymer main chain.

Polyurethanes and graft copolymers based on polyurethane, and their use for producing coating materials, adhesives, and sealing compounds

Growing community of inventors

Emsdetten, Germany

Stephan Schwarte