Low crystallinity polyester yarn produced at ultra high spinning

Details Low crystallinity polyester yarn produced at ultra high spinning Low crystallinity polyester yarn produced at ultra high spinning

1986-04-30

1987-08-18

Phynes, Lucille M.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421115, 26421117, 26421122, B28B 320

Patent

active

046876103

ABSTRACT:
Spinning of polyethylene terephthalate yarn at speeds in excess of 5000 meters per minute using a gas management technique of the gas surrounding the threadline to control the temperature and attenuation profiles of a spinning threadline provides a means to produce a low crystallinity polyester yarn with a relatively high elongation to break.

REFERENCES:
patent: 2604667 (1952-07-01), Hebeler
patent: 2957747 (1960-10-01), Bowling
patent: 4134882 (1979-01-01), Frankfort et al.
patent: 4195051 (1980-03-01), Frankfort et al.
patent: 4338275 (1982-07-01), Carr
patent: 4425293 (1984-01-01), Vassilatos
patent: 4491657 (1985-01-01), Saito et al.

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