Melt spinning process

Details Melt spinning process Melt spinning process

1981-05-29

1984-04-10

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

2642108, 525425, 525444, D01D 104

Patent

active

044420579

ABSTRACT:
A process of melt spinning a fibre-forming polymer particularly polyethylene terephthalate or poly-hexamethylene adipamide at a minimum wind up speed of 1000 meters per minute in which there is added to the fibre-forming polymer before spinning a small proportion of a polymer capable of forming an anisotropic melt in the temperature range at which the fibre-forming polymer may be melt spun whereby in the process there is suppression of wind up speed compared with the process carried out in the absence of the added polymer.

REFERENCES:
patent: 3778410 (1973-12-01), Kuhfuss et al.
patent: 3935337 (1976-01-01), Taylor
patent: 3991013 (1976-11-01), Fletcher
patent: 4075262 (1978-02-01), Schaefgen
patent: 4118372 (1978-10-01), Schaefgen
patent: 4161470 (1979-07-01), Calandann
patent: 4223125 (1980-09-01), Bier et al.
patent: 4386174 (1983-05-01), Cogswell et al.

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