Lubricating oil additive and lubricating oil composition
US7629302B2 · kind B2 · utility
1Cited by
10References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2003 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | May 12, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/48
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricating oil additive and a lubricating oil composition wherein no precipitation is generated to exhibit a good storage stability even if a combination of a salicylate detergent and another metal detergent is used is provided by rendering the additive and composition an additive and a composition obtained by incorporating, into a lubricant base oil, (A) an alkali metal or alkaline earth metal salicylate having at its 3 and 5-positions hydrocarbon groups having 1 to 40 carbon atoms and a (per)basic salt, and (B) a metal detergent other than any salicylate detergent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.