Process of making polyacrylonitrile fibers
US5364581A · kind A · utility
6Cited by
10References
3Claims
0Family size
Inventor
Key dates
| Filing date | May 6, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | May 6, 2013 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the rapid precipitation polymerization of acrylonitrile and a minor amount of a vinyl carboxylic acid comonomer in an environment of less than 10 ppm metal-ions to produce an acrylonitrile copolymer which, when pyrolyzed in an oxidizing atmosphere, produces a high quality carbon fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.