Process for producing carbon fibers
US4320107A · kind A · utility
9Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1979 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Nov 23, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/15
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A fibrous carbon is prepared by dissolving coal in a hydrocarbon solvent by heating under hydrogen pressure, by subjecting to melt spinning a solvent-refined coal obtained by successively removing insoluble residues and the solvent from the resultant solution, by making the fiber thus obtained non-fusible, and then by subjecting same to carbonization. The melt spinning may be effected by mixing a highly aromatic bituminous substance with the solvent refined coal. Alternatively, the solvent-refined coal may be pretreated prior to melt spinning by extracting it with a non-aromatic solvent to remove soluble components therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.