Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2016/114401
Kind Code:
A1
Abstract:
A lubricating oil composition to be used in internal combustion engines having sliding mechanisms provided with piston rings and liners, the lubricating oil composition containing a base oil, (A) poly(meth)acrylate, and (B) an organic molybdenum compound, wherein: the (A) poly(meth)acrylate contains repeating units derived from (meth)acrylate represented by formula (1), and contains a polymer (A1) having a mass-average molecular weight of 1,000-500,000; and the (B) organic-molybdenum-compound content in the entire composition is 0.01-0.2 mass% in terms of molybdenum atoms. (In the formula, R1 is a hydrogen atom or a methyl group, X is a hydrogen atom, a C1-60 hydrocarbon group, or a C1-60 hydrocarbon group containing a functional group.)
Inventors:
KASAI MORITSUGU (JP)
Application Number:
PCT/JP2016/051189
Publication Date:
July 21, 2016
Filing Date:
January 15, 2016
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M161/00; C10M125/22; C10M133/56; C10M135/18; C10M137/10; C10M139/00; C10M145/14; C10M149/02; C10M159/18; C10N10/04; C10N10/12; C10N20/02; C10N20/04; C10N30/06; C10N40/25
Domestic Patent References:
WO2013182581A1 | 2013-12-12 | |||
WO2004087850A1 | 2004-10-14 | |||
WO2008047550A1 | 2008-04-24 |
Foreign References:
JP2014152301A | 2014-08-25 | |||
JP2009227919A | 2009-10-08 | |||
JP2011184566A | 2011-09-22 | |||
JP2010095664A | 2010-04-30 | |||
JP2002012884A | 2002-01-15 | |||
JP2011012213A | 2011-01-20 | |||
JPH08178068A | 1996-07-12 |
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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