Process for producing regenerated cellulosic fibers

Details Process for producing regenerated cellulosic fibers Process for producing regenerated cellulosic fibers

1976-02-27

1977-11-01

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 35, C08B 1600

Patent

active

040566757

ABSTRACT:
Regenerated cellulosic fibers of improved resistance to alkaline treatment are produced by nitrosating and dissolving from 5 to 14% by weight of a cellulosic material in a dialkylacylamide solvent while said solution is maintained at a temperature no greater than 20.degree. C to form a cellulose nitrite ester, and regenerating the cellulose by contacting the cellulose ester with a regenerant. Regeneration of the cellulose occurs before significant oxidation of the cellulose takes place.

REFERENCES:
patent: 2472591 (1949-06-01), Kenyon et al.
patent: 3236669 (1966-02-01), Williams
patent: 3702843 (1972-11-01), Schweiger
Venkateswaran et al., Journal of Applied Polymer-Science, vol. 18, 1974, pp. 133-142.

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