Production of carbon fibers having high anisotropy
US4115527A · kind A · utility
17Cited by
6References
2Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 29, 1976 |
| Grant date | Sep 19, 1978 |
| Priority date | — |
| Expiry date | Dec 29, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10C1/19
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In the production of carbon shaped articles such as fibers having high molecular orientation, anisotropy, strength, and modulus of elasticity through the steps of forming raw material pitch into fibers, infusibilization of the same followed by carbonization optionally graphitization, a raw material pitch having particular physical properties such as melt viscosity of 0.4 to 700 poises at a temperature range of 320.degree. to 480.degree. C, eminent structural anisotropy, and fluidity is used to produce such fibers product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.