Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2005/093021
Kind Code:
A1
Abstract:
A lubricating oil composition characterized by comprising: at least one base oil selected among mineral oils, fats, and synthetic oils; a phosphorus-containing carboxylic acid compound; a phosphorus compound antiwear agent which is a phosphorus compound excluding the phosphorus-containing carboxylic acid compound and contains no sulfur; and at least one member selected between a dispersion type viscosity index improver and an oily agent. With the lubricating oil composition, a well-balanced combination of wearing resistance and sludge generation inhibition or of these and frictional properties can be attained on a high level.
Inventors:
MITSUMOTO SHINICHI (JP)
BEPPU YUKIHARU (JP)
AKIYAMA EIJI (JP)
BEPPU YUKIHARU (JP)
AKIYAMA EIJI (JP)
Application Number:
PCT/JP2005/005582
Publication Date:
October 06, 2005
Filing Date:
March 25, 2005
Export Citation:
Assignee:
NIPPON OIL CORP (JP)
MITSUMOTO SHINICHI (JP)
BEPPU YUKIHARU (JP)
AKIYAMA EIJI (JP)
MITSUMOTO SHINICHI (JP)
BEPPU YUKIHARU (JP)
AKIYAMA EIJI (JP)
International Classes:
C10M161/00; C10M167/00; (IPC1-7): C10M161/00; C10M167/00
Foreign References:
| JP2002265971A | 2002-09-18 | |||
| JPH1067993A | 1998-03-10 | |||
| JPH09111277A | 1997-04-28 | |||
| JP2004018531A | 2004-01-22 | |||
| JP2005002213A | 2005-01-06 |
Attorney, Agent or Firm:
Hasegawa, Yoshiki (Ginza First Bldg. 10-6, Ginza 1-chom, Chuo-ku Tokyo 61, JP)
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