Hydrophilic polymer gel water sealing process
US5146985A · kind A · utility
5Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | Jan 16, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Liquid composition for the production of a gel in a well drilled in the ground which is comprised of a hydrophilic polymer. Its liquid medium consists of an organic liquid at least partially miscible with water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.