Lustrous, antisoiling flame retardant acrylic fibers and process

Details Lustrous, antisoiling flame retardant acrylic fibers and process Lustrous, antisoiling flame retardant acrylic fibers and process

1973-05-09

1978-03-28

Seccuro, Carman J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260895, 260DIG24, 260DIG32, 264182, C08L 3320

Patent

active

040814980

ABSTRACT:
Acrylic fibers of a fiber-forming first acrylonitrile polymer containing at least 50% acrylonitrile, a flame retardant amount of a halogen-containing vinyl monomer, and any balance of a halogen-free vinyl monomer having heterogeneously dispersed therein a small amount of an incompatible, halogen-free, second acrylonitrile polymer containing at least 70% acrylonitrile and one or more halogen-free vinyl monomers. The fibers are prepared by wet-spinning an intimate mixture of the polymers separately dissolved in aqueous inorganic solutions of the same salt following conventional procedures but including a hot-wet relaxation of the stretched wet-gel filaments prior to drying.

REFERENCES:
patent: 2763631 (1956-09-01), Coover et al.
patent: 2769792 (1956-11-01), Ham
patent: 3288888 (1966-11-01), Wieckowski

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