Title:
LUBRICANT OIL COMPOSITION, AND METHOD FOR LUBRICATING SLIDING MATERIAL WHILE PREVENTING ELUTION OF COPPER AND LEAD
Document Type and Number:
WIPO Patent Application WO/2014/017182
Kind Code:
A1
Abstract:
As a lubricant oil composition which has excellent NOx resistance, antioxidative properties, base value-maintaining properties and cleaning performance and can be used particularly suitably as a lubricant oil for an internal combustion engine, a lubricant oil composition is provided, in which a lubricant oil base oil comprises (A) a 2,2,6,6-tetraalkylpiperidine derivative and (B) an organic molybdenum compound and/or an organic tungsten compound. The lubricant oil composition preferably additionally contains (C) a hindered phenol-type antioxidant agent and/or an aromatic amine-type antioxidant agent or (D) at least one compound selected from the group consisting of a phosphorous compound and a metal or amine salt thereof. Also provided is a method for lubricating a sliding material while preventing the elution of copper and/or lead from the sliding material, said method being characterized in that the sliding material is brought into contact with a specific lubricant oil composition as mentioned above.
Inventors:
YAGISHITA KAZUHIRO (JP)
Application Number:
PCT/JP2013/065819
Publication Date:
January 30, 2014
Filing Date:
June 07, 2013
Export Citation:
Assignee:
JX NIPPON OIL & ENERGY CORP (JP)
International Classes:
C10M141/12; C10M129/10; C10M133/12; C10M133/40; C10M137/04; C10M137/06; C10M139/00; C10N10/04; C10N10/12; C10N30/00; C10N30/04; C10N30/10; C10N30/12; C10N40/25
Domestic Patent References:
| WO2008109523A1 | 2008-09-12 | |||
| WO2008109502A1 | 2008-09-12 | |||
| WO2006043606A1 | 2006-04-27 |
Foreign References:
| JPS6028496A | 1985-02-13 | |||
| JPH0345695A | 1991-02-27 | |||
| JPH0345696A | 1991-02-27 | |||
| JPH04309597A | 1992-11-02 | |||
| JP2009197135A | 2009-09-03 | |||
| JPH07268379A | 1995-10-17 | |||
| JPS5610591A | 1981-02-03 | |||
| US4263152A | 1981-04-21 |
Other References:
See also references of EP 2878653A4
Attorney, Agent or Firm:
MORITA, NOBUYUKI (JP)
Yoriyuki Morita (JP)
Yoriyuki Morita (JP)
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