Title:
LUBRICATING OIL COMPOSITION AND BASE OIL
Document Type and Number:
WIPO Patent Application WO/2019/138948
Kind Code:
A1
Abstract:
A lubricating oil composition comprising a base oil and an antioxidant, wherein a base oil having an absorbance of 0.02 to 3.0, inclusive, at a wavelength of 274 nm is used. Furthermore, one having a sulfur fraction content ratio of 0.05 mass% or less, an aromatic hydrocarbon component content ratio (%CA) of 1.0 or less, and a viscosity index of 95 to 130, inclusive, is selected as the base oil. According to such a lubricating oil composition, the oxidation stability can be enhanced and a longer life can be achieved.
Inventors:
ITO TAKASHI (JP)
Application Number:
PCT/JP2018/048554
Publication Date:
July 18, 2019
Filing Date:
December 28, 2018
Export Citation:
Assignee:
JXTG NIPPON OIL & ENERGY CORP (JP)
International Classes:
C10M171/00; C10N20/00; C10N20/02; C10N30/00; C10N30/10; C10N40/00; C10N40/02
Foreign References:
| JP2006117727A | 2006-05-11 | |||
| JPS6215289A | 1987-01-23 | |||
| JPH04359994A | 1992-12-14 | |||
| JP2000119675A | 2000-04-25 | |||
| US20130264246A1 | 2013-10-10 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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