Lubricating oils
US11104860B2 · kind B2 · utility
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16References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2015 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | May 14, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricating composition comprises an amide and at least one additive. The amide is the reaction product of a secondary, branched amine and a carboxylic acid. The carboxylic acid may be a monocarboxylic acid or a dicarboxylic acid, including dimer acid. The amide is hydrolytically stable, and may be used to increase the hydrolytic stability of the lubricant composition. Alternatively, the amide may be used to increase the additive solubility or detergency of the lubricant composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.