Dow Global Technolgoies LLC

Wolff Cellulosics Gmbh & Co.,

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Jürgen Engelhardt

Klaus Nachtkamp

Roland Bayer

Hartwig Schlesiger

Jörn-Bernd Pannek

Arne Henning Kull

Meinolf Brackhagen

Werner Lange

Manfred Pinnow

Christa Krüger

Erik-Andreas Klohr

Frank Meister

Frank Höhl

Fritz Loth

Birgit Kosan

Holger Tanneberger

Kay Hettrich

Steffen Fischer

Carsten Hüttermann

Daniel Auriel

Burkhard Kressdorf

Marc Oliver Schmidt

Jens Schaller

Christa Maria Kruger

Volker Kriegisch

Lutz Driesen

Bert Volkert

Hans-Günter Poersch-Panke

Benedikt Langer

The present invention provides novel nanoscale cellulose particles and also a process for their production. The cellulose-based particles obtained have volume-averaged particle sizes of less than 300 nm. These nanoparticles are produced from amorphous cellulose or by amorphization of cellulose, optional subsequent hydrolysis and by input of energy into a water-containing medium after or during dispersion.

Nanoparticles made of amorphous cellulose

The present invention provides novel nanoscale cellulose particles and also a process for their production. The cellulose-based particles obtained have volume-averaged particle sizes of less than 300 run. These nanoparticles are produced from slightly oxidized cellulose and by input of energy into a water-containing medium after or during dispersion.

Nanoparticles from slightly oxidised cellulose

The present invention relates to novel nanoparticles based on cellulose and a process for producing them and their use.

Production of cellulose nanoparticles

A process for producing aminoalkyl-containing guar derivative is disclosed. The process entails a) dispersing a member selected from the group consisting of guar and guar derivative in a mixture of a water-miscible aprotic solvent and water and b) alkalizing the member with a base to obtain a mixture containing an alkalized member and c) etherifying the mixture with an amino-containing reagent to obtained an etherified mixture and d) optionally neutralizing the etherified mixture to obtain a material system containing a reaction product and e) optionally filtering the material system to obtain the reaction product and f) optionally washing the reaction product and g) optionally drying the reaction product referred to in f) and h) optionally grinding the reaction product. The product thus obtained is suitable for producing hair conditioners and flocculation aids.

Aminoalkyl-containing guar derivatives

The present invention relates to a process for preparing cellulose ether products which is characterized in that superabsorbent polymers (SAPs) are dried and milled, or mill-dried, conjointly with moist cellulose ether and also to the cellulose ether products resulting from this process.

Preparation of cellulose ether products of increased viscosity and fineness

A method of preparing construction material systems is described. The process includes extruding a composition of construction materials and an irreversibly crosslinked cellulose derivative that is prepared by a particular process.

Process for cement extrusion that makes use of crosslinked cellulose additives

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Bad Fallingbostel, Germany

Jürgen Engelhardt