Oil-in-water emulsion breaking with hydrophobically functionalized cationic polymers
US4741835A · kind A · utility
57Cited by
17References
5Claims
0Family size
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Key dates
| Filing date | Sep 8, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Sep 8, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of breaking an oil-in-water emulsion which comprises the steps of treating said oil-in-water emulsion with at least a de-emulsifying amount of a water dispersible terpolymer formed by polymerization from an acrylamide monomer, a water soluble cationic monomer and a water insoluble, hydrophobic monomer, and separating the formed water phase from the formed phase of terpolymer and the oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.