O-Alkylated/O-acylated coal and coal bottoms
US4372750A · kind A · utility
0Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1980 |
| Grant date | Feb 8, 1983 |
| Priority date | — |
| Expiry date | Dec 8, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L9/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coal and coal bottoms characterized by having the hydrogens of substantially all of the hydroxyl and carboxyl groups, of the coal and coal bottoms replaced with C.sub.1 to C.sub.20 alkyl or acyl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.