High concentration water-soluble polymers in water-in-oil emulsions
US4339371A · kind A · utility
28Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1981 |
| Grant date | Jul 13, 1982 |
| Priority date | — |
| Expiry date | Mar 20, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L57/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Water-in-oil emulsions containing high concentrations of water-soluble polymers are prepared by incorporating therein an oil-soluble, water-insoluble polymeric surfactant prepared from maleic anhydride and a comonomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.