A method for producing modified cellulose

D - Textiles – Paper – 21 – H

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D21H 11/18 (2006.01) D21H 17/24 (2006.01)

Patent

CA 2750082

The present invention provides a method for producing modified nanofibrillated cellulose characterized by bringing cellulosic material into a fiber suspension, adsorbing a cellulose derivative or polysaccharide or polysaccharide derivative onto fibers in said fiber suspension under special conditions and subjecting the obtained fiber suspension derivative to mechanical disintegration. A modified nanofibrillated cellulose obtainable by a method of the present invention is provided. Furthermore, the invention relates to the use of said modified nanofibrillated cellulose.

La présente invention a pour objet un procédé de production de cellulose nanofibrillée modifiée, caractérisé par les étapes consistant à amener une matière cellulosique dans une suspension de fibres, à adsorber un dérivé de la cellulose ou un polysaccharide ou un dérivé de polysaccharide sur les fibres de ladite suspension de fibres dans des conditions spéciales et à soumettre le dérivé de la suspension de fibres obtenu à une désintégration mécanique. La présente invention concerne également une cellulose nanofibrillée modifiée pouvant être obtenue par un procédé de la présente invention. En outre, l'invention concerne l'utilisation de ladite cellulose nanofibrillée modifiée.

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