Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2017/150707
Kind Code:
A1
Abstract:
This lubricating oil composition comprises a lube base oil, an olefin oligomer (A) having a mass-average molecular weight of 500-5,000, an antioxidant (B) comprising a phenolic antioxidant (B-1) and an amine-based antioxidant (B-2), and an alkaline-earth metal compound detergent (C), wherein the content of the alkaline-earth metal compound detergent (C) is 1,700-2,700 mass ppm in terms of alkaline-earth metal atom amount based on the whole lubricating oil composition. The lubricating oil composition has a dynamic viscosity at 100ºC of 4.0-6.0 mm2/s.
Inventors:
YOKOMIZO MASATO (JP)
KAMANO HIDEKI (JP)
KAMANO HIDEKI (JP)
Application Number:
PCT/JP2017/008496
Publication Date:
September 08, 2017
Filing Date:
March 03, 2017
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C10M129/10; C10M133/12; C10M137/10; C10M143/00; C10M143/06; C10M159/22; C10M159/24; C10M163/00; C10N10/04; C10N20/00; C10N20/02; C10N20/04; C10N30/02; C10N30/08; C10N30/10; C10N40/04
Domestic Patent References:
| WO2004069967A1 | 2004-08-19 | |||
| WO2007058213A1 | 2007-05-24 | |||
| WO2008016038A1 | 2008-02-07 |
Foreign References:
| JP2015502446A | 2015-01-22 | |||
| JP2014025004A | 2014-02-06 | |||
| JP2012107142A | 2012-06-07 | |||
| JPH04202398A | 1992-07-23 |
Other References:
See also references of EP 3425032A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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