Plasticizer and method of preparing pitch for use in carbon and graphite production
US4971679A · kind A · utility
6Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1989 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Oct 10, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10C3/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A plasticizer for use in the manufacture of pitch which forms a fluid at room temperature consisting essentially of a tar composed of low molecular weight and polymerized aromatic hydrocarbons having a molecular weight distribution characteristic which is bimodel. The plasticizer is formed by reacting a tar or distillate precursor with oxygen under controlled conditions of temperature and time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.