Vicinal diol containing monomers and methods of preparing
US4730081A · kind A · utility
4Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1987 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Jan 28, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/74
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a water soluble vinyl monomer containing a vicinal diol group of the general formula: ##STR1## wherein R.sub.1 is hydrogen or methyl; R.sub.3 and R.sub.4 are independently methyl or ethyl; Y is oxygen or NH; X.sup.- is a halogen, sulfate, CH.sub.3 SO.sub.4.sup.- or C.sub.2 H.sub.3 SO.sub.4.sup.- or CH.sub.3 COO.sup.- and n is 2 or 3. Polymers containing the monomer when crosslinked in aqueous fluids form high viscosity gels which are stable at high temperatures and can be used in carrying out completion, stimulation, enhanced production and other treatments in subterranean formations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.