Process for melt spinning acrylonitrile polymer hydrates

Details Process for melt spinning acrylonitrile polymer hydrates Process for melt spinning acrylonitrile polymer hydrates

1978-12-29

1980-12-09

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

260 296AN, 264211, 525336, 525380, D01D 504

Patent

active

042384427

ABSTRACT:
The melt spinning of acrylonitrile polymer hydrates is improved when the polymer used contains at least 91% by weight acrylonitrile units and up to 9% by weight of one or more copolymeric units and has an intrinsic viscosity of 0.6-2, 7-23 .mu. eq./g. enolizable groups after mild acid treatment, 15-70 .mu. eq./g. thioether ends derived from a water insoluble mercaptan and less than 3 .mu. eq./g. oxidizable hydrolysis fragments.

REFERENCES:
patent: 2434054 (1948-01-01), Roedel
patent: 3380949 (1968-04-01), Isley et al.
patent: 3448092 (1969-06-01), Chiang
patent: 3774387 (1973-11-01), Woodell
patent: 3819762 (1974-06-01), Howe
patent: 3828013 (1974-08-01), Nield
patent: 3879360 (1975-04-01), Patron et al.
patent: 3984601 (1976-10-01), Blickenstaff
patent: 4004072 (1977-01-01), Tamura
patent: 4055532 (1977-10-01), Thompson
Kirby et al., "Macromolecules", 1, pp. 53-58, (1968).

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