Hercules Corporation

Ashland Licensing and Intellectual Property LLC

Solenis Technologies Cayman, L.p.

Susanne Bellmann

Norbert Steiner

Christian Boekelo

Wolfgang Woebel

Joerg Issberner

Michael Busch

Dev Steuck

Johann Schulte

Jörg Issberner

Wolfgang Wöbel

The invention relates to water-in-water polymer dispersions containing a polymer A with a cationic monomer fraction of up to 60 wt. % and at least one polymer dispersant B, based on cationised dialkylaminoalkyl (meth)acrylamides with an average molecular weight of between 75,000 and 350,000 g/mol. The invention also relates to a method for producing said dispersions and to the use of the latter.

Cationic polymer dispersions, method for producing said dispersions and use thereof

The invention relates to a method for producing anionic water-in-water polymer dispersions containing at least one finely dispersed, water-soluble and/or water-swellable polymer A and a continuous aqueous phase. This phase has a partial quantity of at least one polymeric dispersing agent B in which monomers dispersed in this aqueous phase are subjected to a radical polymerization, and after the polymerization is completed, the reaction mixture is subsequently diluted with the remaining amount of dispersing agent B. The invention also relates to the polymer dispersions obtained according to the method and to their use, particularly in the paper industry.

Anionic water-in-water polymer dispersion, method for the production thereof and its use

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Ratingen, Germany

Susanne Bellmann