Cellulose derivative spinning solutions having improved processa

Details Cellulose derivative spinning solutions having improved processa Cellulose derivative spinning solutions having improved processa

1985-11-19

1991-09-10

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264187, 264207, 264211, 1061631, 106165, D01F 208, D01F 224

Patent

active

050471970

ABSTRACT:
Cellulose derivative spinning solutions are provided, having an improved flow rate at comparable cellulose derivative content and pressure drop across the spinning nozzle, or a higher cellulose derivative content at comparable flow rate, comprising a cellulose derivative in solution in a solvent therefor, and a polyethylene glycol soluble in the solution and having an average molecular weight within the range from about 1.1 to about 4.5 million, in an amount to improve flow rate or increase cellulose derivative content; as well as a process for spinning such solutions through a spinning nozzle at improved flow rate or increased cellulose derivative content.

REFERENCES:
patent: 3619223 (1971-11-01), Brower et al.
patent: 3843378 (1974-10-01), Smith
patent: 4121012 (1978-10-01), Bockno
patent: 4418026 (1983-11-01), Blackie et al.

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