Demulsifiers
US9695366B2 · kind B2 · utility
5Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2012 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Oct 29, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/74
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to novel demulsifiers for use in the demulsification of oils from water and vice versa, including the demulsification of crude oil from sea water or brine. In particular, the present invention relates to novel demulsifiers which are environmentally friendly, or ‘green’, and which can be used without restriction on-site in offshore oil drilling fields, for example in the North Sea. The novel demulsifiers are based on the reaction product of alkoxylated polyols or polyol esters with dicarboxylic acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.