Method of producing shaped cellulosic articles

Details Method of producing shaped cellulosic articles Method of producing shaped cellulosic articles

1991-12-06

1993-06-01

Nutter, Nathan M.

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

Organic compounds

Carbohydrates or derivatives

536 57, 106168, 106176, 106203, C08B 1600, C08L 102, C09J 400, C09J10100

Patent

active

052161447

ABSTRACT:
Shaped cellulosic bodies and especially cellulosic fibers or filaments are produced by precipitating cellulose from a solution containing cellulose and NMMO. To allow elevated concentrations of NMMO in the precipitating bath without detriment to the properties of the fibers or filaments produced, the temperature of the precipitating bath is held at most at 0.degree. C.

REFERENCES:
patent: 2179181 (1939-11-01), Graenacher et al.
patent: 2322427 (1943-06-01), Edelstein
patent: 3447939 (1969-06-01), Johnson
patent: 3758458 (1973-09-01), Dyer
patent: 4246221 (1981-01-01), McCorsley, III
patent: 4324593 (1982-04-01), Varga
patent: 4634470 (1987-01-01), Kamide et al.

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