Process for the thermal stabilization of acrylic fibers and film

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

1981-04-27

1982-09-28

Hamrock, William F.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525379, 528481, C08F 832

Patent

active

043519253

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: 3891606 (1975-06-01), Kogon
patent: 4031188 (1977-06-01), Kohler
patent: 4074031 (1978-02-01), Johnson et al.

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