Basf Aktiengesellschaft

Basf Se Corporation

Stefan Dreher

Bernd Reck

Michael Seufert

Johannes T&uuml;rk

Joachim Pakusch

Joachim Roser

Eckehardt Wistuba

Wilhelm Friedrich Beckerle

Matthias Gerst

Claudia Wood

Matthias Laubender

Heinrich Sack

Hans-J&uuml;rgen Denu

Mario Sandor

Christian Pfaff

Johannes Türk

Karl-Georg Boettger

Dietbert Kn&ouml;fel

A description is given of a polymer dispersion comprising i) polymer particles dispersed in an aqueous medium and composed of units of ethylenically unsaturated monomers, ii) a water-soluble polymeric polyelectrolyte which along a polymeric backbone carries a large number of ionic groups of uniform charge character or groups which can be ionized to such groups, and iii) an ionic surfactant which carries an ionic group having a charge character opposite to that of the polymeric polyelectrolyte, or a group which can be ionized to such a group. The polymer dispersion can be coagulated by simple dilution with water.

Polymer dispersions

An aqueous polymer dispersion, a process for preparing it, and substrates bound on the basis of it are described.

Thermohardening polymer dispersion

The invention relates to a thermally hardenable polymer dispersion powder and the use of said powder as a binding agent in particular for fibrous and grainy materials. The binding agent in powder form is obtained by drying a polymer dispersion which comprises a carboxyl-group-containing polymerization component in addition to, optionally, a hydroxy-alkylated amine.

Thermally hardenable polymer binding agent in the form of a powder

The use is described of polysulfide-free preparations comprising, based on solids content, from 40 to 99.5% by weight of at least one water-dispersible copolymer and from 0.5 to 10% by weight of at least one alkoxylated ionic or nonionic emulsifier, as additives for construction materials based on loam or clay. The building materials based on loam or clay and comprising the preparation are described, as are the use of the construction materials and a process for treating construction materials with the preparation.

Use of polysulfide-free preparations as an additive for loam or clay-based construction materials

Ammonia-free polymer dispersions as additives in mineral building materials based on hydraulic binders

Cement compositions comprising redispersible polymer powders

Heat-curable aqueous compositions which comprise a carboxyl-containing polymer component and optionally a hydroxyalkylated amine are used as binders for shaped articles.

Thermosetting aqueous compositions

Thermally curable aqueous compositions comprising a low-acid and an acid-rich polymer component and also a hydroxyalkylated amine are used as binders for shaped articles.

Aqueous compositions

Described is a polymer dispersion comprising in an aqueous medium (a) dispersed particles of a polymer containing more than from 5 to 20% by weight of &agr;,&bgr;-ethylenically unsaturated mono- or dicarboxylic acid, (b) a dissolved polymer containing from 60 to 100% by weight of &agr;,&bgr;-ethylenically unsaturated mono- or dicarboxylic acid, and (c) an alkoxylated long-chain amine. Heat-curable compositions are obtained by adding polyfunctional alcohols and, optionally, reaction accelerant. The polymer dispersions and the heat-curable compositions are suitable for use as binders for textile sheetlike structures and for moldings.

Polymer dispersion containing dispersed particles, a dissolved polymer, and an amine

Growing community of inventors

Neustadt, Germany

Stefan Dreher