Polymeric dispersants having polyalkylene and succinic groups
US5616668A · kind A · utility
51Cited by
18References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1995 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Dec 14, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel copolymers of unsaturated acidic reactants and high molecular weight olefins are useful as dispersants in lubricating oils and fuels and also may be used to prepare polysuccinimides and other post-treated additives useful in lubricating oils and fuels. The ratio of anhydride groups to the hydrocarbon groups in these novel copolymers is at least 1.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.