Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/203524
Kind Code:
A1
Abstract:
Provided is a lubricating oil composition that has a low viscosity and excellent lubricating ability. A lubricating oil composition that comprises a base oil, an organic molybdenum compound and a metal detergent, wherein: the metal detergent contains calcium sulfonate; the content of calcium sulfonate, in terms of calcium atoms, is 0.12 mass% or more relative to the composition; the content ratio by mass of molybdenum atoms derived from the organic molybdenum compound to a soap base derived from the metal detergent, i.e., [Mo/soap base] relative to the lubricating oil composition, is 0.02 or greater; and the HTHS viscosity at 150°C is equal to or more than 1.3 mPa•s and less than 2.3 mPa•s. A lubricating oil composition that comprises a base oil, an organic molybdenum compound and a metal detergent, wherein: the metal detergent contains overbased calcium salicylate; the content ratio by mass of molybdenum atoms derived from the organic molybdenum compound to a soap base derived from the metal detergent, i.e., [Mo/soap base] relative to the lubricating oil composition, is 0.02 or greater; and the HTHS viscosity at 150°C is equal to or more than 1.3 mPa•s and less than 2.3 mPa•s.
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Inventors:
FUJITA SHOICHIRO (JP)
Application Number:
PCT/JP2020/013226
Publication Date:
October 08, 2020
Filing Date:
March 25, 2020
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M135/10; C10M135/18; C10M137/10; C10M159/18; C10M159/22; C10N10/04; C10N10/12; C10N30/04; C10N30/06; C10N40/25
Domestic Patent References:
WO2007114260A1 | 2007-10-11 | |||
WO2016159006A1 | 2016-10-06 | |||
WO2018070362A1 | 2018-04-19 |
Foreign References:
JP2015140354A | 2015-08-03 | |||
JP2018002794A | 2018-01-11 | |||
JP2015147890A | 2015-08-20 | |||
JP2017105886A | 2017-06-15 | |||
US20180258365A1 | 2018-09-13 | |||
US20180258366A1 | 2018-09-13 | |||
JP2017149830A | 2017-08-31 | |||
JP2003252887A | 2003-09-10 | |||
JPH0322438B2 | 1991-03-26 | |||
JP2004002866A | 2004-01-08 | |||
JP2019065480A | 2019-04-25 |
Other References:
See also references of EP 3950905A4
Attorney, Agent or Firm:
KOBAYASHI Hiroshi et al. (JP)
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