Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2004/013264
Kind Code:
A1
Abstract:
A lubricating oil composition which comprises a base oil, (A) a specific alkali metal salicylate derivative, a specific alkaline earth metal salicylate derivative and/or their (per)basic salt in an amount of 0.005 to 5 mass % in terms of the amount of the metal element and (B) a phosphorus-containing wear inhibitor in an amount of 0.005 to 0.2 mass % in terms of the amount of phosphorus, has a total sulfur content of 0.3 mass % or less, and satisfies specific requirements, all the percentages being relative to the total amount of the composition. The lubricating oil composition is a low sulfur lubricating oil which is extremely excellent in wear inhibiting property and also excellent in long drain property and the like, and thus can be suitably used in particular for an internal combustion engine.
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Inventors:
YAGISHITA KAZUHIRO (JP)
Application Number:
PCT/JP2003/009883
Publication Date:
February 12, 2004
Filing Date:
August 04, 2003
Export Citation:
Assignee:
NIPPON OIL CORP (JP)
YAGISHITA KAZUHIRO (JP)
YAGISHITA KAZUHIRO (JP)
International Classes:
C10M141/10; C10M141/12; C10M163/00; C10M167/00; (IPC1-7): C10M163/00
Domestic Patent References:
| WO1994028094A1 | 1994-12-08 |
Foreign References:
| EP1227145A1 | 2002-07-31 | |||
| GB1146925A | 1969-03-26 | |||
| GB1184020A | 1970-03-11 | |||
| JPH11302679A | 1999-11-02 | |||
| JP2002212579A | 2002-07-31 |
Other References:
See also references of EP 1526169A4
None
None
Attorney, Agent or Firm:
Morita, Nobuyuki (5-8 Nishi-shimbashi 3-chom, Minato-ku Tokyo, JP)
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