Process for the thermal stabilization of acrylic fibers

Details Process for the thermal stabilization of acrylic fibers Process for the thermal stabilization of acrylic fibers

1980-04-18

1981-10-20

Hamrock, William F.

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

4234474, 4234476, 525379, D06Q 102

Patent

active

042958440

ABSTRACT:
An improved process for the thermal stabilization of an acrylic fibrous material or film is provided. The fibrous material or film initially is contacted with aniline provided at an elevated temperature. Such aniline treatment (as described) has been found to render the fibrous material or film capable of undergoing thermal stabilization on a more expeditious basis. Subsequently the resulting fibrous material or film is heated in an oxygen-containing atmosphere at a temperature of approximately 200.degree. to 360.degree. C. until a stabilized fibrous material or film is formed.

REFERENCES:
patent: 2758003 (1956-08-01), Kleiner et al.
patent: 3767773 (1973-10-01), Turner et al.
patent: 3814577 (1974-06-01), Menikheim
patent: 4031188 (1977-06-01), Kohler

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