Crosslinkable cellulose derivatives
US4982793A · kind A · utility
69Cited by
25References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1989 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Mar 10, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/926
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel treating fluid compositions containing crosslinkable non-ionic cellulose derivatives and methods of use in petroleum recovery operations are disclosed. The treating fluid polymers are prepared by reacting vinyl or allyl monomers having a crosslinkable substitutent with a cellulose derivative using a ceric ion redox system. Treatment of a non-ionic cellulose derivative with a ceric ion redox system also yields a crosslinkable polymer. The polymers readily crosslink with polyvalent metal ions, such as zirconium and titanium, to form temperature-stable gels useful in petroleum recovery operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.