Lubricating oil base oil, lubricating oil composition containing same, and continuously variable transmission using said lubricating oil composition
US11326119B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | Mar 27, 2019 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Mar 27, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/046
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided are: a lubricant base oil capable of achieving both a high traction coefficient and an excellent low-temperature fluidity at a higher level and having a high flash point, which contains a ring-containing compound having at least (i) a crosslinked bicyclic ring where two rings are bonded while sharing 3 or more carbon atoms, and (ii) an acyloxy group or a hydrocarbyloxycarbonyl group each containing a branched hydrocarbon group with a main chain having 4 or more carbon atoms, a lubricating oil composition containing the lubricant base oil, and a continuously variable transmission using the lubricating oil composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.