Process for treating coal and products produced thereby
US4033852A · kind A · utility
26Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1975 |
| Grant date | Jul 5, 1977 |
| Priority date | — |
| Expiry date | Jun 26, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S44/905
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel modified coal products, which are more easily liquified as compared to natural coal, are produced by a process comprising activating coal with free radical or ionic catalyst systems and thereafter, reacting the activated coal with vinyl monomers to attach polymeric side chains to the coal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.