Basf Aktiengesellschaft

Basfaktiengesellschaft

Michael Portugall

Bernd Hisgen

Oral Aydin

Walter Maechtle

Josef Neutzner

Hans-Jakob Kock

Erhard Seiler

Gerd Blinne

Hans-Josef Sterzel

Roland Baumstark

Gerd Rehmer

Andreas Boettcher

Wilhelm Friedrich Beckerle

Helmut Ringsdorf

Eckehardt Wistuba

Gerhard Heinz

Ulrike Licht

Klaus Muehlbach

Juergen Hambrecht

Karl Haeberle

Bernd Reck

Rolf Dersch

Udo Reiter

Erich Gulbins

Helmut Tesch

Rainer Hummerich

Herbert Stutz

Rolf Steinberger

Gernot Franzmann

Karl Ruppmich

Martin Meister

Hans-Juergen Denu

Maria G Rau

Hans-Friedrich Schmidt

Falko Ramsteiner

Juergen Mertes

Albrecht Zosel

Hermann Brandt

Joachim Krobb

Heino Finkelmann

Karl H Etzbach

Hans W Schmidt

Bernard Dotzauer

Josef Neutzer

Enrique Schweigger

Franz Schumacher

Sybille Von Tomkewitsch

Heinz-Dieter Vondenhagen

Cationically stabilized aqueous styrene/(meth)acrylate copolymer emulsions whose dispersed copolymer has a static glass transition temperature of from 40 to 110.degree. C. and which contain, as a dispersant, a mixture of at least one organic monoamine of .gtoreq.8 carbon atoms and an acid addition salt thereof are used as binders for moldings based on finely divided materials having a negative surface charge.

Use of cationically stabilized aqueous polymer emulsions as binders for

Aqueous polymer emulsion

An aqueous polymer emulsion is obtained by polymerizing first a monomer composition 1 in a first polymerization stage and then a monomer composition 2 in a polymerization stage 2, in each case by the free radical aqueous emulsion polymerization method, one of the two monomer compositions essentially comprising hard monomers and the other monomer composition essentially comprising soft monomers, and, in addition to the monomer compositions 1 and 2, nitrogen-containing adhesion-promoting monomers being polymerized, at least 20 mol % of the total amount of the adhesion-promoting monomers being polymerized in polymerization stage 1.

Aqueous polymer compositions

An aqueous polymer dispersion with a solids volume concentration of at least 50% by volume is obtainable by polymerizing monomers by the method of free radical aqueous emulsion polymerization with the addition of at least one fine and at least one coarse aqueous starting polymer dispersion.

Aqueous polymer dispersion

An aqueous polymer dispersion having a solids volume concentration of 50% by volume or more is obtainable by polymerizing radical polymerizable monomers other than vinyl or vinylidene halides by the method of free radical aqueous emulsion polymerization with the addition of an aqueous starting polymer dispersion having a certain diameter distribution of the starting polymer particles present therein by the stream addition process.

An aqueous polymer dispersion with a final solids volume concentration of at least 50% by volume is obtainable by polymerizing at least one radical polymerizable monomer by the method of free radical aqueous emulsion polymerization with the addition of an aqueous dispersion of a starting polymer.

Aqueous polymer dispersion having a broad particle size distribution

Aqueous polymer dispersion having a wide particle size distribution

An aqueous polymer dispersion with a solids volume concentration of at least 50% by volume is obtainable by polymerizing monomers by the method of free radical aqueous emulsion polymerization with the addition of at least two starting polymer dispersions, of which one contains not only particularly finely divided but also coarsely divided polymer particles.

Aqueous polymer dispersion having a broad particle distribution

UV-crosslinkable materials based on (meth)acrylate copolymers and containing from 0.01 to 10% by weight, based on the copolymer, of copolymerized monomers of the formula I ##STR1## where x is alkyl of 1 to 3 carbon atoms or is phenyl which is unsubstituted or substituted by n Y groups, Y is --H, --CF.sub.3, --O-- alkyl and/or alkyl-COO--, where alkyl in each case is of 1 to 4 carbon atoms, halogen, --CH, --COOH or a non-ortho --OH group, n is from 0 to 4 and Z is a group of the formula ##STR2## where R is H or C.sub.1 -C.sub.4 -alkyl and A is an alkylene, oxaalkylene or polyoxaalkylene radical of 2 to 12 carbon atoms are used as hotmelt adhesives, for coating sheet-like mineral substrates and as surface coatings.

(Meth)acrylate copolymer based UV-crosslinkable materials

Aqueous polymer dispersion containing a polydisperse particle size

Aqueous dispersions contain a polyurethane which consists essentially of

Aqueous polyurethane dispersions

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Michael Portugall