Process for producing flame retardant acrylic fibers with improv

Details Process for producing flame retardant acrylic fibers with improv Process for producing flame retardant acrylic fibers with improv

1976-07-06

1978-05-23

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264210F, 264211, 264342RE, D01F 618

Patent

active

040910660

ABSTRACT:
Process for producing a flame retardant acrylic fiber by wet-spinning a halogen-containing acrylic spinning solution containing antimony oxide particles dispersed therein, wherein an acrylic fiber having a high degree of flame retardancy and improved fiber properties, such as transparency, luster and brightness of colors of dyed products, is produced in an industrially advantageous manner by regulating the water content in the hydrogel fiber obtained by hot stretching after wet-spinning within a range of 50-130% based on the fiber-forming polymer.

REFERENCES:
patent: 3451140 (1969-06-01), Nakagawa et al.
patent: 3451960 (1969-06-01), Schmidt
patent: 3784666 (1974-01-01), Sekiguchi et al.
patent: 3798296 (1974-03-01), Thomas
patent: 3847864 (1974-11-01), Chase et al.
patent: 3864447 (1975-02-01), Sekiguchi et al.

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