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Patent Searching and Data


Title:
LUBRICANT OIL COMPOSITION AND INTERNAL-COMBUSTION-ENGINE FRICTION REDUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/158971
Kind Code:
A1
Abstract:
The present invention provides a lubricant oil composition having an excellent friction reduction effect and excellent fuel saving properties. Provided is a lubricant oil composition comprising (A) a lubricant-oil base oil, (B) a molybdenum compound, and (C) an ashless friction modifier, wherein said (B) molybdenum compound contains a binuclear organic molybdenum compound represented by formula (I), the content of the binuclear organic molybdenum compound in terms of molybdenum atoms being 0.030-0.140 mass%, inclusive, on the basis of the total amount of the lubricant oil composition; as said (C) ashless friction modifier, (C1) an ester ashless friction modifier and/or (C2) an amine ashless friction modifier is contained; and the total of the contents of said (C1) ester ashless friction modifier and said (C2) amine ashless friction modifier exceeds 0.1 mass% but is not more than 1.8 mass% on the basis of the total amount of the lubricant oil composition. (I) (In formula (I), R1 to R4 each represent a hydrocarbon group having a carbon number of 4-22, and R1 to R4 may be identical or different. X1 to X4 each represent a sulfur atom or an oxygen atom.)

Inventors:
NAKAYA IKUKO (JP)
TAMURA KAZUSHI (JP)
Application Number:
PCT/JP2016/060168
Publication Date:
October 06, 2016
Filing Date:
March 29, 2016
Export Citation:
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Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M141/12; C10M101/02; C10M107/02; C10M129/68; C10M129/76; C10M133/04; C10M135/18; C10M137/10; C10M139/00; C10M145/14; C10N10/04; C10N10/12; C10N30/00; C10N30/06; C10N40/25
Domestic Patent References:
WO2010032781A12010-03-25
WO2014021350A12014-02-06
WO2005014763A12005-02-17
WO2015022976A12015-02-19
Foreign References:
JP2008106199A2008-05-08
JP2009292998A2009-12-17
JP2010100707A2010-05-06
JP2006182986A2006-07-13
JP2003073685A2003-03-12
JP2004277712A2004-10-07
JP2011195774A2011-10-06
JP2003221588A2003-08-08
JPH07150173A1995-06-13
JP2015140354A2015-08-03
Other References:
See also references of EP 3279292A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
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