Hydrosoluble silane or siloxane derivative-based copolymer
US6251837A · kind A · utility
1Cited by
7References
24Claims
0Family size
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Inventors
Key dates
| Filing date | Aug 4, 1998 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Aug 4, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/926
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Hydrosoluble copolymers made of hydrophilic monomers, e.g., acrylamide, and of silane or siloxane derivative-based hydrophobic monomers, e.g., a silane or or siloxane acrylate, is obtained by micellar or heterogeneous radical copolymerization, and such copolymers can be used as rheology control agents in, e.g., a well bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.