Acrylamide-alkylacrylamide copolymers
US4520182A · kind A · utility
26Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1983 |
| Grant date | May 28, 1985 |
| Priority date | — |
| Expiry date | Aug 29, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/58
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Water soluble acrylamide/alkylacrylamide copolymers which are efficient viscosifiers of water or brine are described. They are made by processes which finely disperse the water insoluble alkylacrylamide into a water-external microemulsion or a micellar surfactant solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.