Bayer Aktiengesellschaft

Lanxess Deutschland Gmbh

Bernhard Lehmann

Reinhold M Klipper

Bruno Hees

Ulrich Schnegg

Manfred Gerlach

Winfried Joentgen

Torsten Groth

Holger L&uuml;tjens

Ulrich Litzinger

Werner Str&uuml;ver

Rudiger Schubart

Hermann Perrey

Christian Rasp

Wolfgang Zarges

Thomas Menzel

Herbert Emde

Ralf Timmermann

Siegfried Kussi

Ingo Janisch

Heiko Hoffmann

Andreas Gr&ouml;schl

Werner Strüver

Volker Hassmann

Hartwig Wendt

Holger Lütjens

Dieter Mauer

Rolf Kehlenbach

J&uuml;rgen Horn

Urban Recht

Ralf Moritz

Johannes De Geus

Reiinhold Klipper

The present invention relates to a process for preparing novel, monodisperse ion exchangers having chelating functional groups, and their use for adsorbing metal compounds, in particular, heavy metal compounds and noble metal compounds, and also for extracting alkaline-earth metals from saline solutions from alkali metal chloride electrolysis.

Process for preparing monodisperse ion exchangers having chelating functional

Process for preparing monodisperse ion exchangers having chelating functional groups and the use thereof

The invention relates to a method for cleaning a metallic or an enameled surface comprising flooding a metallic surface contaminated with deposits with a mixture comprising (i) water, (ii) chippings of woods selected from the group consisting of merantis, bongossis, mahoganies, sipos, khayas, lauans, and sapellis, and (iii) a member selected from the group consisting of polyaspartic acid, salts of polyaspartic acid, and polysuccinimide, and thereby cleaning the surface.

Cleaning method

A method of cleaning surfaces made of glass, graphite, ceramics, polymeric and metallic materials, synthetic and vegetable fibres, e.g. fabrics, textiles or waste paper, in particular membrane surfaces, by detaching or dissolving organic and inorganic soilings by a simple flushing operation, where a solution of an iminocarboxylic acid, a polyamino acid, an emulsifier or a mixture thereof is used.

Surface-cleaning method

The present invention relates to a process for preparing novel, monodisperse crosslinked bead polymers having thiourea groups and their use for adsorbing metal compounds, in particular heavy metal compounds or noble metal compounds.

Process for preparing monodisperse, crosslinked bead polymers having thiourea groups and their use for adsorbing metal compounds

The present invention relates to cleaning compositions which, as powder or as aqueous formulation, comprise sodium bicarbonate and, as dispersants, polyaspartic acids and/or salts thereof, to the use of these cleaning compositions for the abrasive cleaning of hard surfaces, and also to a method of cleaning surfaces contaminated with deposits using these cleaning compositions.

Use of polyaspartic acids in cleaner formulations with abrasive action

A method for cleaning a surface by flooding and thereby cleaning a surface contaminated with deposits with a mixture containing water, wood chippings, and optionally, polyaspartic acid or a derivative of a polyaspartic acid.

Cleaning method using a mixture containing wood chippings and, optionally, polyaspartic acid and/or a derivative of a polyaspartic acid

The plasticity of ceramic compositions and dispersions can be improved by addition of at least one polymer (I) with recurring succinyl units. This effect can be reversed by addition of a setting accelerator (II); preferred setting accelerators are polymers (II) of the polyalkylenepolyamine type.

Process for improving the plasticity of ceramic composition and for

Oil emulsions are broken in a particularly advantageous manner by adding to them a breaker which comprises poly-DADMAC and polyalkylenepolyamines.

Process for breaking oil emulsions

Oil-in-water emulsions are reprocessed in a particularly effective manner by a process in which

Process for reprocessing oil-in-water emulsions

The invention relates to a new three-part process, which can also be employed on a large industrial scale, for the preparation of polyurea lubricating greases, which is characterised

Process for the preparation of polyurea greases

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Aachen, Germany

Bernhard Lehmann