Basf Aktiengesellschaft

Basf Se Corporation

Martin Beck

Rüdiger Funk

Norbert Herfert

Samantha Champ

Gunnar Schornick

Hans-Joachim Hähnle

Mariola Wanior

Hans-Joachim H&auml;hnle

Uwe Stüven

Markus Tönnessen

Bernhard Steinmetz

Wolfgang Schrof

Harald Keller

Horst Baumgartl

Dennis Lösch

Wolfgang Heider

Antje Ziemer

Volker Frenz

Thomas Anstock

Bernhard Mohr

J&uuml;rgen Huff

Anna Kowalski

Mirjam Herrlich-Loos

Corinna Haindl

Michael Fastner

Ernst Jürgen Bauer

Ulrich Schr&ouml;der

Elisabeth Selzer

Gerd Goebel

Udo Gödert

The invention concerns fire-extinguishing and/or fire-retarding compositions comprising at least one water-absorbing polymer and at least one alkali metal salt of a nonpolymeric saturated carboxylic acid, processes for their production and the use of the compositions for firefighting or as fire-retarding coatings.

Fire extinguishing and/or fire retarding compositions

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

The present invention relates to novel hydrophilic swellable addition polymers comprising improved odor control, a process for their preparation and their use for absorbing aqueous fluids and a process for screening superabsorbents.

Acidic superabsorbent hydrogels

Foams composed of water-absorbing basic polymers, obtainable by (I) foaming a crosslinkable aqueous mixture including (a) at least one basic polymer whose basic groups have optionally been neutralized, (b) at least one crosslinker, (c) at least one surfactant, (d) optionally at least one solubilizer, (e) optionally thickeners, foam stabilizers, fillers, fibers and/or cell nucleators, and (f) optionally particulate water-absorbing acidic polymers, by dissolving a gas which is inert toward free radicals in the crosslinkable aqueous mixture under a pressure from 2 to 400 bar and subsequently decompressing the crosslinkable aqueous mixture to atmospheric or by dispersing fine bubbles of a gas which is inert toward free radicals, and (II) crosslinking the foamed mixture to form a hydrogel foam and if applicable adjusting the water content of the polymer foam to 1-60% by weight. Preparation of the foams by application of the abovementioned measures (I) and (II) and use of the thus obtainable foams in hygiene articles to absorb body fluids, in dressing material to cover wounds, as a sealing material, as a packaging material, as a soil improver, as a soil substitute, to dewater sludges, to absorb aqueous acidic wastes, to thicken waterborne paints or coatings in the course of disposing of residual quantities thereof, to dewater water-containing oils or hydrocarbons or as a material for filters in ventilation systems.

Foams made from water-absorbing, basic polymers, method for the production and utilization thereof

The invention concerns improved moisture-regulating composites comprising a sheetlike substrate material, a water-soluble hygroscopic substance and a water-absorbing polymer polymerized onto the substrate material in the presence of the hygroscopic substance and comprising a plasticizer, methods of making them and their use for moisture regulation.

Humidity-regulating composite materials

Disclosed is a method for determining the swellability and the swelling kinetics of superabsorbent material () such as polymer gels, for example, which comprises introducing a defined volume of the dry superabsorbent material () into a measuring vessel (), using a movable element () within said measuring vessel () to apply a restraining force () to said superabsorbent material () and capturing the expansion of said superabsorbent material () contactlessly within a chamber () in a continuous manner by capturing the change in height of a piston () which bounds said chamber (), travels in a measuring vessel () and is marked with a height scale ().

Method and device for determining the swelling behavior of polymer gels under pressure

Hydrophilic, open-cell, elastic foams with a melamine/formaldehyde resin base, production thereof and use thereof in hygiene products

Water-absorbing, cross-linked polymerizates in the form of a foam, a method for the production thereof, and their use

Growing community of inventors

Maxdorf, Germany

Martin Beck