Processes for precipitating tertiary amine oxide cellulose solut

Details Processes for precipitating tertiary amine oxide cellulose solut Processes for precipitating tertiary amine oxide cellulose solut

1997-07-24

1999-09-14

Wilson, James O.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264203, 536 56, 536 57, D01F 110, D01F 202

Patent

active

059519339

ABSTRACT:
The invention provides improvements in processes for film and fiber production involving precipitating cellulose from tertiary amine oxide solutions wherein a water soluble polymer is incorporated into the solution in an amount sufficient to slow precipitation of the cellulose during separation of the cellulose from the tertiary amine oxide.

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Chanzy et al., "Swelling and Dissolution of Cellulose in Amine Oxide/Water Systems," Journal of Applied Polymer Science: Applied Polymer Symposium, 37:239-259 (1983).
Turbak et al., "Cellulose solvents," Chemtech, 10:51-57 (Jan., 1980).
Turbak, A.F., "Recent developments in cellulose solvent systems," TAPPI Journal, 67(1):94-96 (Jan., 1984).

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