Method for the production of melt-spun and molecular-oriented dr

Details Method for the production of melt-spun and molecular-oriented dr Method for the production of melt-spun and molecular-oriented dr

1980-06-23

1983-01-18

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With twining, plying, braiding, or textile fabric formation

264176F, 2642108, D02G 120

Patent

active

043691552

ABSTRACT:
Production of drawn dilaments by cooling freshly spun filaments at a temperature below the setting point and taking them off at 3500 m/min while passing them over heated surfaces, such heated surfaces being 20 to 300 mm long heated to from 450.degree. to 650.degree. C. and arranged at a distance of from 1500 to 6500 mm from the spinneret.

REFERENCES:
patent: 2974391 (1961-03-01), Speckman et al.
patent: 3719442 (1973-03-01), Schippers et al.
patent: 3798298 (1974-03-01), Krimper et al.
patent: 3979496 (1976-09-01), Schwarz
patent: 4113821 (1978-09-01), Russell et al.
patent: 4217323 (1980-08-01), Foster et al.
patent: 4251481 (1981-02-01), Hamlyn

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