Basf Aktiengesellschaft

Basf Se Corporation

Basfaktiengesellschaft

Basf Akteingesellschaft

Rolf Dersch

Sebastian Roller

Roelof Balk

Cheng-Le Zhao

Roland Baumstark

Uwe Dittrich

Bernhard Schlarb

Eckehardt Wistuba

Joachim Roser

Bernhard Schuler

Konrad Roschmann

Joerg Leuninger

Johannes Vinke

Bernd Bruchmann

Michael Portugall

Gregor Ley

Heiko Maas

Wilhelm Friedrich Beckerle

Brigitte Gareiss

Manfred Schwartz

Robert Rupaner

Heinrich Grubert

Daniel Schoenfelder

David Christie

Gernot Franzmann

Johannes Dobbelaar

Franz Weingart

Bernhard Dotzauer

Michael Gotsche

Meik Ranft

Maria G Rau

Roland Gellert

Michael Melan

Harutyun Hanciogullari

Ludger Leber

Stefan Kirsch

Bas Lohmeijer

Ulrich Tromsdorf

Volkmar Berg

Li Zhuo

Alexander Haunschild

Terri A Cunningham

Heribert Kossmann

Volker Sch&auml;dler

Heinrich Dehne

Dietrich-Wolfgang Mueller

Felix Baah

Enrique Schweigger

Daniel SCHÖNFELDER

Bastiaan Lohmeijier

Jörg Leuninger

Christian Lach

The present invention relates to aqueous binder compositions obtainable by emulsion polymerization of

Low-VOC aqueous hybrid binders

Coating compositions containing an aqueous polymer dispersion having improved resistance toward chemicals. The aqueous polymer dispersion is prepared by polymerizing a first composition containing at least one ethylenically unsaturated group (monomers) by radical aqueous emulsion polymerization and then, in the presence of a product mixture from the previous polymerization, polymerizing a second composition containing at least one ethylenically unsaturated group (monomers) by radical aqueous emulsion polymerization. The coating compositions are such that the difference between a glass transition temperature of a polymer prepared from the first polymerization and a glass transition temperature of a polymer prepared from the second polymerization is at least 50&#xb0; C.

Use of aqueous polymer dispersions for improving resistance to chemical influences

The present invention provides aqueous emulsion polymers comprising

Aqueous emulsion polymers, their preparation and use

The present invention relates to an aqueous binder composition comprising:

Aqueous binder composition comprising oligomers

The present invention relates to an aqueous binder composition comprising

Aqueous binder composition

The present invention relates to the use of aqueous hybrid binders for producing coating compositions, more particularly in high-gloss coating materials (high-gloss paints), and also to a process for their preparation with low residual monomer content.

Use of aqueous hybrid binders for gloss paints

The present invention relates to a method of producing coatings with increased gloss, to aqueous coating materials for such a method, and to the use of highly branched polymers as an additive for aqueous polymer dispersions for coating materials that lead to coatings having increased gloss.

Use of highly branched polymers in polymer dispersions for gloss colours

The present invention aqueous coating compositions comprising

Aqueous coating composition with low VOC content

The present invention relates to an aqueous coating composition having excellent freeze-thaw stability and a low-VOC content, comprising a multi-stage polymer dispersion comprising (a) an inner phase comprising at least one latex polymer derived from at least one monomer and at least one polymerizable alkoxylated surfactant having the structure: R&#x2014;Rwherein R1 is an allyl group selected from the group consisting of CH&#x2014;CH&#x2550;CH&#x2014; and CH&#x2550;CH&#x2014;CH&#x2014;, or an acrylic group and Ris a radical comprising at least two carbon atoms and at least one oxyethylene or oxypropylene unit; (b) an outer phase having a glass transition temperature of from 30&#xb0; C. to 110&#xb0; C. containing at least one ethylenic unsaturated monomer (c) at least one pigment; (d) water; and (e) less than 3.0% by weight based on the total weight of the aqueous coating composition of anti-freeze agents.

Low-VOC aqueous coating compositions with excellent freeze-thaw stability

Solvent-free pigmented formulation

The invention relates to aqueous pigment preparations containing i) at least one copolymer P of ethylenically unsaturated monomers M in the form of an aqueous polymer dispersion which contains between 0.1 and 1.5 weight %, in relation to the total weight of the copolymer P, of polymerized itaconic acid as acid monomer M1, its salts and/or anhydride, where up to 50 weight % of the itaconic acid can be substituted by another monomer having at least one acid group or a neutralized acid group, and whose glass transition temperature T lies between &minus;10 and &plus;50&deg; C.; ii) at least one inorganic pigment; iii) possibly inorganic fillers; and iv) standard additives. The invention also relates to the use of the copolymers P containing itaconic acid for improving the wet-abrasion resistance of polymer-bound coatings containing pigments.

Dispersion resins containing itaconic acid for improving wet abrasion resistance

The present invention relates to a process for hydrogenating ethylenically unsaturated double bonds in polymers P by reacting an aqueous dispersion of at least one polymer P with hydrogen in the presence of at least one hydrogenation catalyst comprising at least one transition metal selected from rhodium and/or ruthenium and at least one nonionic phosphorus compound capable of forming a coordinative compound with the transition metal, which comprises incorporating the hydrogenation catalyst into the aqueous dispersion of the polymer P without adding a solvent. The present invention also relates to the aqueous dispersions of the hydrogenated polymers P obtainable by this process and to coating compositions comprising such dispersions.

Method of selectively hydrogenating ethylenically unsaturated double bonds in polymers

Binder formulations based on aqueous polymer dispersions having a minimum film-forming temperature of below 10&deg; C. and comprising at least one binder polymer P in the form of an aqueous dispersion comprising at least one anionic emulsifier and at least one nonionic emulsifier.

Binder formulations based on aqueous polymer dispersions

Pigmented formulations based on aqueous polymer dispersions

Growing community of inventors

Neustadt, Germany

Rolf Dersch