Process for producing carbon fibers from mesophase pitch
US3995014A · kind A · utility
20Cited by
12References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1974 |
| Grant date | Nov 30, 1976 |
| Priority date | — |
| Expiry date | Oct 31, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/19
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved process for producing carbon fibers from pitch which has been transformed, in part, to a liquid crystal or so-called "mesophase" state. According to the process, pitch of a given mesophase content, suitable for producing carbon fibers, is produced in substantially shorter periods of time than heretofore possible, at a given temperature, by subjecting the pitch to reduced pressure during formation of the mesophase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.