Carbon fiber production using high pressure treatment of a precursor material
US4402928A · kind A · utility
25Cited by
5References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Mar 27, 2001 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/145
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for producing a carbon fiber includes the steps of heat treating a selected precursor material under high pressure, thereafter solvent extracting the treated precursor material to obtain mesophase pitch, spinning the mesophase pitch into at least one pitch fiber, thermosetting the pitch fiber, and carbonizing the pitch fiber to obtain the carbon fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.