Lubricating oil dispersant
US6800596B1 · kind B1 · utility
3Cited by
9References
49Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 2003 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | May 9, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved dispersant is prepared by cross-linking a succinimide under Mannich reaction conditions with a polyphenolic compound. The amount of cross-linking, and the resulting size of the reaction product dispersant can be varied by varying the molecular equivalent ratios of succinimide and polyphenol. Lubricating oils containing the dispersant of the reaction product display superior performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.