Process for the thermal stabilization of acrylic fibers
US4295844A · kind A · utility
7Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1980 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Apr 18, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M13/325
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.