LUBRICANT COMPOSITION, METHOD FOR REDUCING FRICTION OF INTERNAL COMBUSTION ENGINE, AND METHOD FOR PRODUCING LUBRICANT COMPOSITION

WIPO Patent Application WO/2017/002969

A1

Provided is a lubricant composition which has excellent friction reducing effect, while enabling excellent fuel consumption saving. A lubricant composition which contains (X) a lubricant base oil, (A) a dinuclear organic molybdenum compound represented by general formula (I), (B) a trinuclear organic molybdenum compound represented by general formula (II), and (C) an ashless friction modifier having two or more hydroxyl groups in each molecule, and wherein: the total of the content of the component (A) in terms of molybdenum atoms and the content of the component (B) in terms of molybdenum atoms is 0.012% by mass or more based on the total amount of the lubricant composition; the content of the component (C) is less than 2.0% by mass based on the total amount of the lubricant composition. (In formula (I), each of R1-R4 represents a hydrocarbon group having 4-22 carbon atoms, and the R1-R4 moieties may be the same as or different from each other; and each of X1-X4 represents a sulfur atom or an oxygen atom.) Mo3SkEmLnApQz (II) (In formula (II), E represents an oxygen atom or a selenium atom; k represents an integer of 1 or more; m represents 0 or an integer; k + m is 4-10; each L independently represents an anionic ligand having an organic group that contains a carbon atom; the total number of carbon atoms in the organic group in each ligand is 14 or more; the ligands may be the same as or different from each other; n represents an integer of from 1 to 4; A represents an anion other than L; p represents 0 or an integer; Q represents a compound that donates a neutral electron; and z represents an integer of from 0 to 5, and includes a non-stoichiometric amount.)

JP2828712	INDUSTRIAL APPLICABILITY: Lubricants and functional fluid compositions exhibiting improved emulsifying properties
JPH0251591	SYNERGISTIC COMBINATION OF ADDITIVE USEFUL IN POWER TRANSMITTING COMPOSITION

OKI HIROSHI (JP)
ISHIKAWA MOTOHARU (JP)

PCT/JP2016/069709

January 05, 2017

July 01, 2016

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IDEMITSU KOSAN CO (JP)

C10M141/12; C10M139/00; C10M163/00; C10M135/18; C10M137/10; C10M159/18; C10N10/04; C10N10/12; C10N20/00; C10N20/02; C10N20/04; C10N30/06; C10N40/25

JP2003513150A	2003-04-08
US20070265176A1	2007-11-15
JP2002539274A	2002-11-19
US5837657A	1998-11-17

OHTANI, Tamotsu (JP)

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