Reactive cellulose and method for making same

Details Reactive cellulose and method for making same Reactive cellulose and method for making same

C - Chemistry, Metallurgy

08

B

C08B 1/00 (2006.01) C08B 1/02 (2006.01) C08B 1/06 (2006.01) C08B 3/00 (2006.01) C08B 11/00 (2006.01)

Patent

CA 2286572

The invention concerns reactive cellulose, i.e. having in particular a very low degree of crystallinity obtainable with a high degree of purity. Said novel reactive cellulose is particularly used as raw material for making cellulose ethers. The invention is characterised in that the reactive cellulose is substituted by organic groups according to a degree of substitution DS less than 0.2, advantageously ranging between 0.04 and 0.2.

L'invention propose une cellulose réactive, c'est-à-dire présentant notamment un degré de cristallinité très faible pouvant être obtenu avec un degré de pureté élevé. Cette nouvelle cellulose réactive trouve notamment une utilisation comme matière première dans la fabrication des éthers de cellulose. A cet effet, l'invention propose une cellulose réactive substituée par des groupes organiques selon un degré de substitution DS inférieur à 0,2, avantageusement compris entre 0,04 et 0,2.

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