Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Akzo Nobel N.v.

Kemira Oyj

Bernd Paulke

André Laschewsky

Mathias Hahn

Christian Przybyla

Oliver Struck

Werner Jaeger

Achim Sieger

The invention relates to a process for preparing an aqueous polymer dispersion comprising reacting, in the presence of a polymeric cationic co-stabilizer (A), one or more monomers (m), and a polymer (B) of a monomer mixture comprising at least one monomer (x) having a primary, secondary or tertiary amine or amide group and at least one olefinic unsaturation, and, at least one cationic monomer (y) having at least one olefinic unsaturation. The invention also relates to a polymer dispersion, a process for preparing a polymeric stabilizer (C), a polymeric stabilizer (C) and a process for producing paper.

Polymer dispersion and process for preparing a polymer dispersion

The present invention relates to a process for preparing a polymer dispersion comprising polymerising one or more water soluble anionic monomers (m) and one or more non-ionic vinyl monomers (m) present in a reaction mixture further comprising a polymeric stabiliser (B) and a polymeric co-stabiliser (C). It further relates to a polymer dispersion, the use of the polymer dispersion and a process for producing paper.

Process for preparing a polymer dispersion and a polymer dispersion

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Potsdam, Germany

Bernd Paulke