Wolff Walsrode Ag

Dow Global Technolgoies LLC

Bernd Schriewer

Werner Lange

Jörn-Bernd Pannek

Dieter Herzog

Holger Tanneberger

Martin Lohrie

Wilhelm Oppermann

Volker Eckhardt

Ren&eacute; Kiesewetter

J&ouml;rn-Bernd Pannek

Friedrich-Karl Lampert

A process is described for the continuous preparation and/or workup of polysaccharide derivatives by reaction and/or conditioning in a suspension with liquid reaction partners, in which, in accordance with,

Continuous process for the production and/or workup of polysaccharide derivatives

This invention relates to a process for producing a substantially fiber-free carboxymethyl cellulose which predominantly exhibits elastic properties, to the use thereof as a superabsorbent material, and to the use thereof as an adjuvant substance for achieving suitable rheological and water retention properties for the cosmetics, pharmaceutical and food sectors, and for industrial applications, e.g. as an additive for coating materials, for the sealing of cables and for use in tunnelling and in civil and underground engineering.

Essentially fiber-free cellulose ether with improved water retention, method for the production and use thereof

Cellulose derivatives which are substituted in a specified manner by both carboxyalkyl groups and sulphoalkyl groups which are suitable in drilling fluids.

Use of cellulose derivatives in drilling fluids

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Walsrode, Germany

Bernd Schriewer