Cellulose sponge and process for its production

Details Cellulose sponge and process for its production Cellulose sponge and process for its production

C - Chemistry, Metallurgy

08

L

C08L 1/02 (2006.01) C08J 9/06 (2006.01) C08J 9/10 (2006.01)

Patent

CA 2213234

The invention relates to a cellulose sponge which can be made by mixing a cellulose solution in an aqueous tertiary amine oxide with a pore former and a foaming agent and then subjecting it to conditions resulting in a decomposition of the foaming agent and the foaming of the cellulose solution, whereafter the foamed cellulose solution is brought into contact with water to precipitate the cellulose.

L'invention concerne une éponge en cellulose obtenue par mélange d'une solution de cellulose dans un oxyde aqueux d'amine tertiaire, avec un agent porogène et un agent d'expansion. Le mélange obtenu est ensuite soumis à un traitement entraînant la décomposition de l'agent d'expansion et un moussage de la solution de cellulose, à la suite de quoi la solution de cellulose moussée est mise en contact avec de l'eau pour précipiter la cellulose.

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