Process for producing optically anisotropic carbonaceous pitch
US4454019A · kind A · utility
12Cited by
7References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1982 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Jan 11, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10C3/002
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A homogeneous, optically anisotropic pitch used for the production of carbon materials is prepared from a starting oil comprising a substantially chloroform-insoluble matter-free oily or tarry substance. The starting oil is subjected to thermal cracking and polycondensation to form approximately 20-80% of optically anisotropic phase pitch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.