Carbon fiber production using high pressure treatment of a precursor material
US4317809A · kind A · utility
27Cited by
4References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1979 |
| Grant date | Mar 2, 1982 |
| Priority date | — |
| Expiry date | Oct 22, 1999 |
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 heating a selected precursor material under high pressure, thereafter heating the precursor material under atmospheric pressure with sparging to form a 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.