Demulsifier compositions and demulsifying use thereof
US5102580A · kind A · utility
3Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1991 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | May 28, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/2609
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A blend of a first block oxyalkylated copolymer of a bishydroxyalkyl ether and a second block oxyalkylated copolymer of 2-amino-2-hydroxymethyl 1,3-propanediol partially cross-linked with a vinyl polymer in the pH reducing presence of an alkylsulfonic acid is provided and can be used as an effective demulsifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.