Process for preparing high stength cellulosic fibers

Details Process for preparing high stength cellulosic fibers Process for preparing high stength cellulosic fibers

1985-02-19

1988-02-16

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264200, 264207, 26421116, 106196, D01D 506, D01F 228

Patent

active

047253940

ABSTRACT:
High strength, high modulus cellulose triacetate fibers are produced by spinning a 30-50% by weight solution of cellulose triacetate having an acetyl content of at least 42.5% and an inherent viscosity of at least 5 from a solvent mixture comprising nitric acid and another solvent having a molecular weight of less than 160 in a mol ratio of 1-3 through an air gap into a coagulating bath.

REFERENCES:
patent: Re30352 (1980-07-01), Kwolek
patent: 1521876 (1925-01-01), Farrow
patent: 1943461 (1934-01-01), Traill et al.
patent: 4370168 (1983-01-01), Kamide et al.
patent: 4464323 (1984-08-01), O'Brien

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