Henkel Kommanditgesellschaft Auf Aktien

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Henkel Corporation

Henkel Kommanditgesellschaft

Konrad Engelskirchen

Herbert Fischer

Ludwig Schieferstein

Thomas Moeller

Doris Oberkobusch

Klaus Hornfeck

Hans-Wilhelm Verholt

Christian Nitsch

Wilfried Raehse

Beatrix Kottwitz

Horst Upadek

Willi Wuest

Werner Stein

Joachim Schindler

Rolf Schmid

Norbert Kuehne

Michael Bahn

Gerhard Wenz

Heinz C Nicolaisen

Werner Juettner

Wolf-Eckart Noack

Eberhard Gruenberger

Steven Harris

Manfred Peuscher

Production of polysaccharide-based polycarboxylates

Oxidation process for producing polycarboxylates from polysaccharides

Fluidized-bed oxidation process for the production of

Process for the production of polysaccharide-based polycarboxylates

Detergents and cleaning preparations containing selected builder systems

.alpha.-cyanoacrylate adhesive compositions

Deinking of wastepaper with quaternized hydroxyethyl cellulose

Flotation process for removing fillers from wastepaper in the presence

A method for the production of new derivatives of watersoluble cellulose ethers by the reaction of 100 parts by weight of a water-soluble cellulose ether with 3 to 30 parts by weight of C.sub.8-18 alkyl(ene) succinic acid anhydride, in the absence of water and under neutral or acid conditions at elevated temperature, until, in analytically detectable terms, 1 to 8% by weight, based on the cellulose ether, of alk(en)yl succinic acid has reacted with the cellulose molecule; the products of the method; and their use as thickners for aqueous surfactant solutions, dye dispersions, and for hydraulically setting building materials or their use as protective colloids or emulsifiers in the suspension polymerization of water-insoluble monomers in aqueous phase.

Water-soluble ethers substituted with alkenyl or alkyl succinic acid

In the aerobic culture of microorganisms of the Xanthomonas genus in fermentation media, the use of water-in-oil emulsions in the media minimizes viscosity problems and enhances yields of Xanthomonas biopolymers. Preferably, the emulsion is formed with a surfactant and the microorganism is Xanthomonas campestris.

Process for producing Xanthomonas biopolymers

A process for the production of carboxyalkyl celluloses having an average degree of substitution of at least 1.0. The process comprises up to 3 stages, but without any intermediate purification. The preferred suspension medium is isopropanol. In each stage of the process, the carboxyalkylating agent is used in quantities of less than 2.5 moles per mole of anhydroglucose unit and the alkylating agent in quantities of less than 5 moles per mole of anhydroglucose unit. The total water content of the system throughout the reaction as a whole must not exceed 450% by weight, based on the quantity by weight of cellulose used. Water contents of from 80 to 250% by weight are preferred.

Process for highly substituted carboxyalkyl celluloses and mixed ethers

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Meerbusch, Germany

Konrad Engelskirchen