Basf Aktiengesellschaft

Clariant Corporation

Volker Frenz

Matthias Weismantel

Ulrich Riegel

Thomas Daniel

Fritz Engelhardt

Norbert Herfert

Wilfried Heide

R&uuml;diger Funk

Rüdiger Funk

Friedrich Engelhardt

Gunnar Schornick

Bernhard Steinmetz

Harald Keller

Uwe Stueven

Stefan Blei

Florence L'Alloret

Stefan Bruhns

Pierre Maroy

Dennis Lösch

Hans-Joachim Hähnle

Wolfgang Heider

Volker Seidl

Martin Beck

Aranka Tardi

Anna Kowalski

Carolin Nadine Dücker

Thomas H Majette

Reinhard J Oswald

Ernst Jürgen Bauer

Juergen Tonhauser

Elisabeth Selzer

William E Volz

James Hill

A hydrogel having a floatability where from 40% to 90% of a solution and/or suspension to be thickened are thickened starting from the surface of the liquid and the rest of the solution and/or suspension to be thickened is thickened starting from the bottom of the container, a process for preparing the hydrogel and also its use for absorbing blood and/or body fluids, especially in hygiene articles, or for thickening aqueous solutions and/or suspensions, especially for thickening medical wastes.

Hydrogel capable of absorbing blood and/or body fluids

A process for producing water-absorbing polymeric particles by dropletization polymerization in the gas phase, which comprises drying the polymeric particles after the polymerization in a fluidized bed, the water-absorbing polymeric particles themselves, hygiene articles comprising these water-absorbing polymeric particles and also apparatus for implementing the process.

Production of water-absorbing polymeric particles by dropletization polymerization in the gas phase

A process for the reduction of the residual monomer content and enhancement of the wet strength of articles formed from water absorbent crosslinked polymer foams containing units derived from monoethylenically unsaturated acids, which comprises treating the formed articles with at least 0.5% by weight of a polymer containing primary and/or secondary amino groups and having a molar mass of at least 300, the formed foam articles thus obtainable and use of the wet strength enhanced formed foam articles in hygiene articles.

Process for the reduction of the residual monomer content of water-absorbent foam

Described is a water-absorbent composition containing from 30 to 100% by weight, based on the water-absorbent composition, of water-insoluble water-swellable hydrogels characterized by the following features:

Absorbent compositions

Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines

Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones

Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones

Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones

Mechanically stable hydrogel-forming polymers

Well cementing aids

Growing community of inventors

Mainz-Kostheim, Germany

Volker Frenz