Polymaleic anhydride derivatives
US4734204A · kind A · utility
9Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1985 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Aug 30, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention provides partial esters of a polymer containing maleic anhydride or maleic acid radicals and an alkoxylated alcohol, an alkoxylated alkyl phenol or a polyalkylene glycol. The products are useful as demulsifiers for water-in-oil emulsions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.