Uniform polymeric filaments

Details Uniform polymeric filaments Uniform polymeric filaments

1986-04-30

1987-09-01

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528272, 5283082, C08G 6302

Patent

active

046910034

ABSTRACT:
Improved polymeric filaments spun at high withdrawal speeds of the order of more than 5 km/min, and preferably of 7-12 km/min, wherein the freshly-extruded filaments enter an enclosed zone that is maintained at superatmospheric pressure by a controlled flow of heated air at a low positive pressure.

REFERENCES:
patent: 2604667 (1952-07-01), Hebeler
patent: 4134882 (1979-01-01), Frankfort et al.
patent: 4195051 (1980-03-01), Frankfort et al.
patent: 4338275 (1982-07-01), Carr
patent: 4415726 (1983-11-01), Tanki et al.
patent: 4426516 (1984-01-01), Kuriki et al.
patent: 4491657 (1985-01-01), Saito et al.
High Speed Spinning of Poly(ethylene terephthalate) Structure Development and Its Mechanism, Shimizu et al., (Jun. 1983).
Fiber World, Sep. 1984, pp. 8-12.

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