Polymeric dispersants having polyalkylene and succinic groups
US5565528A · kind A · utility
35Cited by
18References
3Claims
0Family size
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Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | Jun 5, 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.