Production of carbon shaped articles having high anisotropy
US4016247A · kind A · utility
24Cited by
6References
3Claims
0Family size
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Key dates
| Filing date | Apr 3, 1975 |
| Grant date | Apr 5, 1977 |
| Priority date | — |
| Expiry date | Apr 3, 1995 |
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, films, etc. having high molecular orientation, anisotropy, strength, and modulus of elasticity through the steps of forming raw material pitch into desired shapes, 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 desired shaped product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.