Title:
LUBRICATING OIL COMPOSITION, AND SLIDING MECHANISM USING LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/137477
Kind Code:
A1
Abstract:
A lubricating oil composition for a low-friction sliding material, wherein the lubricating oil composition is used interposed between sliding surfaces of a sliding mechanism and at least one of the sliding surfaces has a DLC film containing hydrogen in the amount of 5 atom% to 50 atom% formed thereon. The lubricating oil composition is characterized by containing in a lubricant base oil, based on the total amount of the composition, (A) 0.005 mass% to 0.12 mass% of organic zinc dithiophosphate in phosphorus concentration equivalent, (B) 0.05 mass% to 5.0 mass% of an amine-based friction-reducing agent, and (C) 0.05 mass% to 0.5 mass% of an alkaline-earth metal salicylate-based cleaning agent and/or an alkaline-earth metal sulfonate-based cleaning agent in alkaline-earth metal concentration equivalent. Component (A) contains, based on the total amount of the composition, 0.005 mass% to 0.05 mass% of primary dialkyl zinc dithiophosphate in phosphorous concentration equivalent .
Inventors:
KOSHIMA HIROAKI (JP)
KASAI MORITSUGU (JP)
OGAHARA YOKO (JP)
TSUJIOKA MASANORI (JP)
MIYAKE KOJI (JP)
KASAI MORITSUGU (JP)
OGAHARA YOKO (JP)
TSUJIOKA MASANORI (JP)
MIYAKE KOJI (JP)
Application Number:
PCT/JP2013/057749
Publication Date:
September 19, 2013
Filing Date:
March 18, 2013
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
KOSHIMA HIROAKI (JP)
KASAI MORITSUGU (JP)
OGAHARA YOKO (JP)
TSUJIOKA MASANORI (JP)
MIYAKE KOJI (JP)
KOSHIMA HIROAKI (JP)
KASAI MORITSUGU (JP)
OGAHARA YOKO (JP)
TSUJIOKA MASANORI (JP)
MIYAKE KOJI (JP)
International Classes:
C10M141/10; C10M163/00; C10M129/54; C10M133/04; C10M133/08; C10M135/10; C10M137/10; C10M159/22; C10M159/24; C10N10/04; C10N30/06; C10N40/25
Foreign References:
JP2008231192A | 2008-10-02 | |||
JP2008231191A | 2008-10-02 | |||
JP2008231189A | 2008-10-02 | |||
JP2010156026A | 2010-07-15 | |||
JP2011063654A | 2011-03-31 | |||
JP2005060416A | 2005-03-10 | |||
JP2006036850A | 2006-02-09 | |||
JP2003238982A | 2003-08-27 | |||
JP2004155891A | 2004-06-03 | |||
JP2005098495A | 2005-04-14 | |||
JP2008335718A | 2008-12-29 |
Other References:
See also references of EP 2826845A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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