Process for preparing cellulose esters by use of carboxylic...

Details Process for preparing cellulose esters by use of carboxylic... Process for preparing cellulose esters by use of carboxylic...

C - Chemistry, Metallurgy

08

B

C08B 3/24 (2006.01)

Patent

CA 2059130

Process for reducing the degree of substitution of cellulose esters employing carboxylic acids as solvolysis promoters is disclosed. Exemplary cellulose esters are cellulose acetate, cellulose propionate, cellulose butyrate, cellulose acetate propionate, and cellulose acetate butyrate.

L'invention concerne un procédé permettant de réduire le degré de substitution d'esters de cellulose, en utilisant des acides carboxyliques comme promoteurs de la solvolyse. Comme exemples d'esters de cellulose, on peut citer l'acétocellulose, le propionate de cellulose, le butyrate de cellulose, l'acétopropionate de cellulose et l'acétobutyrate de cellulose.

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