Process for producing a regenerated hollow cellulosic fiber

Details Process for producing a regenerated hollow cellulosic fiber Process for producing a regenerated hollow cellulosic fiber

1976-02-27

1978-04-25

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

264183, 264187, 264188, 264209, 536 35, 536 57, C08B 1600

Patent

active

040864189

ABSTRACT:
Hollow cellulosic fibers are produced by nitrosating and dissolving a cellulosic material in an aprotic solvent selected from the group consisting of a dialkylacylamide and dimethylsulfoxide and regenerating the dissolved cellulose by contacting the cellulose solution with a regenerant. The regenerant is n-octanol where the solvent is a dialkylacylamide and n-hexanol where the solvent is dimethylsulfoxide. The fibers are hollow as regenerated and require no special spinnerette designs nor special spinning conditions.

REFERENCES:
patent: 2780512 (1957-02-01), Inoshita
patent: 3087775 (1963-04-01), Reinhardt et al.
patent: 3236669 (1966-02-01), Williams
patent: 3423491 (1969-01-01), McLain et al.
patent: 3702843 (1972-11-01), Schweiger

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