Process for preparing high strength cellulosic fibers

Details Process for preparing high strength cellulosic fibers Process for preparing high strength cellulosic fibers

1982-08-09

1984-08-07

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

106178, 106196, 2642108, D01F 200

Patent

active

044643233

ABSTRACT:
High strength, high modulus cellulose triacetate fibers are produced by spinning a 30-42% 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 trifluoroacetic acid and another solvent having a molecular weight of less than 160 in a mol ratio of 0.3-3.0 through an air gap into a coagulating bath. The fibers are optionally heat treated under tension or saponified to provide high strength high modulus regenerated cellulose fibers.

REFERENCES:
patent: 4357389 (1982-11-01), Satoh
patent: 4370168 (1983-01-01), Kamide et al.
J. Poly Sci., 19, 1449-1460, (1981).
J. Poly Sci., 20, 1019-1028, (1982).
Kirk-Othmer, Encycl. of Chem. Tech., 5, 3rd Ed., pp. 89-117.

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