Process for stabilizing the viscosity characteristics of coal derived materials and the stabilized materials obtained thereby
US4555248A · kind A · utility
3Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1984 |
| Grant date | Nov 26, 1985 |
| Priority date | — |
| Expiry date | Jun 20, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/322
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is disclosed for stabilizing the viscosity of coal derived materials such as an SRC product by adding up to 5.0% by weight of a light volatile phenolic viscosity repressor. The viscosity will remain stabilized for a period of time of up to 4 months.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.