LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

Title:

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2015/111746

Kind Code:

A1

Abstract:

This lubricating oil composition for an internal combustion engine contains lubricating oil base oil, (A1) basic calcium salicylate having a TBN of 200 mg KOH/g or higher, (A2) basic sodium sulfonate having a TBN of 200 mg KOH/g or higher and/or basic calcium sulfonate having a TBN of 50 mg KOH/g or lower, (B) a binuclear organic molybdenum compound and/or trinuclear organic molybdenum compound, and (C) polyalkyl(meth)acrylate of SSI 30 or lower, the total molybdenum content derived from binuclear and trinuclear organic molybdenum compounds being 0.025 mass% or higher relative to the total composition, and the high-temperature high-shear viscosity and NOACK evaporation loss (250ºC, 1 hr) being set at predetermined values.

Inventors:

UTAKA TOSHIMASA (JP)

Application Number:

PCT/JP2015/052084

Publication Date:

July 30, 2015

Filing Date:

January 26, 2015

Export Citation:

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Assignee:

IDEMITSU KOSAN CO (JP)

International Classes:

C10M169/04; C10M101/02; C10M135/18; C10M145/14; C10M159/22; C10M159/24; C10N10/02; C10N10/04; C10N10/12; C10N20/00; C10N20/02; C10N30/00; C10N30/04; C10N30/06; C10N30/08; C10N30/10; C10N40/25

Foreign References:

JP2013199594A	2013-10-03
JP2008024845A	2008-02-07
JP2003193086A	2003-07-09
JP2010037421A	2010-02-18
JP2008184569A	2008-08-14
JP2013203913A	2013-10-07
JP2007217494A	2007-08-30
JP2007217494A	2007-08-30
JPS62108891A	1987-05-20
JP2003252887A	2003-09-10
JPH0322438B2	1991-03-26
JP2004002866A	2004-01-08

Other References: