Method for producing large diameter spun filaments

Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion

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264176F, 264237, D01D 510

Patent

active

044302770

ABSTRACT:
Large diameter filaments are produced by increasing the cooling efficiency of a molten polymer as it exits a spinnerette orifice. The cooling is accomplished in a collar configuration having means for directing cooling air and an ionic discharge in a direction transverse to the axis of the filament as it passes through the collar.

REFERENCES:
patent: 2252684 (1941-08-01), Babcock
patent: 2636216 (1953-04-01), Huebner
patent: 2886877 (1959-05-01), Frickert et al.
patent: 3224497 (1965-12-01), Blomgren et al.
"Instant Cooling by Electrostatics", Business Week, Aug. 12, 1972, 2 pp.

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