Pitch for the production of carbon fibers
US4620919A · kind A · utility
11Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1985 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | Dec 23, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10C3/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Pitch for the production of carbon fibers which contains from 5 to 40% of the optically anisotropic region which is insoluble in organic solvents having a solubility parameter from 7.4 to 9.0 but is soluble in organic solvents having a solubility parameter from 9.2 to 11.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.