Method for cold-milling cellulose derivatives

Details Method for cold-milling cellulose derivatives Method for cold-milling cellulose derivatives

C - Chemistry, Metallurgy

08

B

241/137

C08B 11/20 (2006.01) B29B 13/10 (2006.01) C08J 3/12 (2006.01)

Patent

CA 1067055

Abstract of the Disclosure This invention relates to an improvement in the method for the cold-milling of a cellulose derivative, in which the cellulose deriva- tive is cooled by means of liquid nitrogen until it becomes brittle and the thus cooled cellulose derivative is milled in a mill, the improve- ment comprising cold-milling a cellulose derivative which is soluble or swellable in water and has a water content of between 40 and 150 per cent by weight, based on its dry weight, and which is, at 20°C, able to absorb, during swelling, more than 150 per cent by weight of water, based on its dry weight.

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