Basf Aktiengesellschaft

Pulakesh Mukherjee

Werner Gauweiler

Eberhard Schupp

Marcus Guzmann

Bernd Reck

Gregor Brodt

Volker Braig

Jürgen Huff

Axel Weiss

Peter Claassen

Marc Leduc

Peter Poganiuch

Ralf Mossbach

Manfred Weber

Kuno Beutler

Tibor Duris

Roland Nowack

Aqueous dispersions of water-soluble and/or water-swellable anionic polymers which are obtainable by free radical polymerization of ethylenically unsaturated, anionic monomers in an aqueous medium in the presence of at leas one stabilizer, the polymerization being carried out in the presence of at least one water-soluble polymer of the groups consisting of

Aqueous dispersions of water-soluble and/or water-swellable anionic polymers, method for their production and use thereof

The present invention relates to textile two- or three-dimensional structures formed from fibers and/or ribbons and swellable materials, the fibers and/or ribbons present in the structure and also the swellable materials each being present in such an amount that the fibers and/or ribbons are encased by the swellable materials and the voids in the structure are, in the swollen state, partially or completely filled by materially bound water and the swellable materials used being aqueous emulsions of (co)polymers of at least one ethylenically unsaturated monomer MON which are applied to the fibers and/or ribbons.

Textile two or three dimensional fabric containing materials that are capable of swelling

An aqueous dispersion of water-soluble polymers obtained by free radical polymerization of ethylenically unsaturated anionic monomers in an aqueous medium in the presence of a stabilizer, wherein the stabilizer comprises: (a) at least one water-soluble polymer selected from the group consisting of a graft polymer of vinyl acetate and/or vinyl propionate on polyethylene glycol, a polyethylene glycol blocked at one or both terminal groups with an alkyl, a carboxyl or an amino group, and a copolymer of alkyl polyalkylene glycol methacrylate and methacrylic acid; and (b) at least one water-soluble polymer selected from the group consisting of a hydrolyzed copolymer of vinyl alkyl ether and maleic anhydride in the form of free carboxyl groups or in the form of salts at least partially neutralized with one or more alkali metal hydroxides or one or more ammonium bases, a cationically modified potato starch, an anionically modified potato starch, a degraded potato starch and maltodextrin.

Aqueous dispersions of hydrosoluble polymerisates of ethylenically unsaturated anionic monomers, method for the production and use thereof

Use of water-soluble polymers for tertiary mineral oil production by introducing the polymer into a mineral oil deposit, in which the water-soluble polymers are used in the form of a dispersion of the water-soluble polymer and at least one water-soluble, polymeric stabilizer.

Use of aqueous dispersions for tertiary mineral oil production

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Mannheim, Germany

Pulakesh Mukherjee