Method of producing cellulose carbamate fibers or films

Details Method of producing cellulose carbamate fibers or films Method of producing cellulose carbamate fibers or films

1984-11-01

1985-07-23

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

C08B 1506

Patent

active

045309990

ABSTRACT:
The production of cellulose carbamate fibers or films by reacting cellulose with urea to form cellulose carbamate which is dissolved in alkaline solution to form a spinning solution which is spun through an acid precipitation bath is improved by subjecting the cellulose carbamate prior to dissolution in alkaline solution to irradiation of about 0.05-10 Mrad. After dissolution in alkaline solution the same may be subjected to further mild irradiation.

REFERENCES:
patent: 3352773 (1967-11-01), Schwartz et al.
patent: 4404369 (1983-09-01), Huttunen et al.
patent: 4456749 (1984-06-01), Mandell et al.
patent: 4486585 (1984-12-01), Turunen et al.

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