Title:
LUBRICANT COMPOSITION FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2004/111162
Kind Code:
A1
Abstract:
A lubricant composition for internal combustion engines, especially a low phosphorus, low sulfur lubricant composition for internal combustion engines is disclosed which is excellent in wear resistance and extreme-pressure characteristics. The lubricant composition for internal combustion engines contains, in the lubricant base oil, (A) at least one substance selected from specific phosphonates and salts thereof and (B) a zinc dithiophosphate having a secondary alkyl group.
Inventors:
YAGISHITA KAZUHIRO (JP)
Application Number:
PCT/JP2004/007337
Publication Date:
December 23, 2004
Filing Date:
May 21, 2004
Export Citation:
Assignee:
NIPPON OIL CORP (JP)
YAGISHITA KAZUHIRO (JP)
YAGISHITA KAZUHIRO (JP)
International Classes:
C10M169/04; C10M101/02; C10M129/10; C10M129/76; C10M133/12; C10M133/54; C10M133/56; C10M135/04; C10M135/06; C10M135/18; C10M137/02; C10M137/04; C10M137/10; C10M137/12; C10M139/00; C10M141/10; C10M159/20; C10M159/22; C10M159/24; C10N10/02; C10N10/04; C10N30/06; C10N40/25; C10N60/14; (IPC1-7): C10M137/00; F01M11/00
Foreign References:
| JPS54154406A | 1979-12-05 | |||
| JPS5653190A | 1981-05-12 | |||
| JPH0971795A | 1997-03-18 | |||
| JP2001031984A | 2001-02-06 | |||
| JPH05331483A | 1993-12-14 | |||
| JP2003165992A | 2003-06-10 | |||
| JP2004083751A | 2004-03-18 |
Attorney, Agent or Firm:
Morita, Nobuyuki (5-8 Nishi-shimbashi 3-chom, Minato-ku Tokyo 03, JP)
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