Solvent system for polysaccharides

Details Solvent system for polysaccharides Solvent system for polysaccharides

D - Textiles, Paper

01

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18/1147, 6/218,

D01F 1/02 (2006.01) C08B 1/00 (2006.01) C08B 11/08 (2006.01) C08B 16/00 (2006.01) C08L 1/02 (2006.01) C08L 1/28 (2006.01)

Patent

CA 1075403

ABSTRACT Natural or modified polysaccharides are dissolved in a solvent system comprising dimethyl sulfoxide and formaldehyde. The solvent system is particularly suitable for dissolving cel- lulose due to the fact that cellulose is rapidly dissolved under moderate conditions of temperature and pressure. The dissolved polysaccharides are readily recovered from the solvent system by diluting the solvent system with water or a short chain alcohol.

274566

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