Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Akzo Nobel N.v.

Akzo Nobel Coatings International B.v.

Leibniz-institut Fur Polymerforschung Dresden E.v.

Topass Gmbh

Zaklad Karbochemii Polska Akademia Nauk

Bernd-Reiner Paulke

Oliver Struck

André Laschewsky

Christian Przybyla

Mathias Hahn

Werner Jaeger

Ulrich Pison

Silvia Pietschmann

Regis Cartier

Simona Schwarz

Mandy Mende

Lutz Kaufner

Andre Laschewsky

Andrzej Prof Dworak

Krzysztof Manczyk

The invention relates to an aqueous polymer dispersion comprising an anionic water-soluble dispersion polymer comprising in polymerized form a monomer mixture comprising (i) one or more anionic monomers, (ii) a first non-ionic vinyl monomer which is acrylamide, and (iii) at least one second non-ionic vinyl monomer; a water-soluble salt and a stabilizer, wherein the water soluble salt is present in an amount of at least 2.0% by weight, based on the total weight of the dispersion. The invention further relates to a process for producing the aqueous polymer dispersion, use of the aqueous polymer dispersion as a flocculating agent in papermaking or for water purification, and a process for producing paper which comprises adding one or more drainage and retention aids comprising the aqueous polymer dispersion to an aqueous suspension containing cellulosic fibers and then dewatering the obtained suspension.

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

The present invention pertains to a three compartment structured polymer nanoparticle (core-shell-corona) for multimodal imaging with specificity for cells or cellular components, thus enabling more advanced diagnostic approaches and targeted therapy on the cellular level without the use of additional biologically active materials.

Multimodal imaging using a three compartment polymer nanoparticle with cell specificity

The invention relates to a method for separating suspended solid materials from aqueous systems, in which the latter is mixed with a flocculant made of polymer colloidal particles with cationic surface charge and subsequently the flocculated material is separated from the aqueous system.

Method for separating suspended solid materials from aqueous systems with colloidal flocculants

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Potsdam, Germany

Bernd-Reiner Paulke