Spinning process for aromatic polyamide filaments

Details Spinning process for aromatic polyamide filaments Spinning process for aromatic polyamide filaments

1984-08-09

1989-09-26

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264184, 425 71, D01D 506

Patent

active

048698601

ABSTRACT:
Process for producing high-strength, aromatic polyamide filaments by delivering substantially uniform amounts of a spinning solution to a plurality of apertures in a spinneret plate, extruding the solution downwardly in a single vertical warp through a noncoagulating fluid and into a gravity-accelerated and free-falling coagulating fluid.

REFERENCES:
patent: 2324397 (1943-07-01), Hull
patent: 3428289 (1969-02-01), Heckrotte et al.
patent: 3705227 (1972-12-01), Fintel et al.
patent: 3707593 (1972-12-01), Fukada et al.
patent: 3767756 (1973-10-01), Blades
patent: 4261943 (1981-04-01), McCorsley, III
patent: 4340559 (1982-07-01), Yang

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