Title:
LUBRICANT COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2014/189057
Kind Code:
A1
Abstract:
The lubricant composition pertaining to the present invention is obtained by blending a base oil, (A) a substituted hydroxy-aromatic carboxylic acid ester derivative represented by general formula (I) and/or general formula (II), and (B) a heterocyclic compound represented by general formula (III) or (IV), the phosphorus content based on the entire amount of the composition being 0.06% by mass or lower, and the sulfated ash content based on the entire amount of the composition being 1.2% by mass or lower. By the present invention, high-temperature detergency and acid neutralization properties can be maintained even when the amount of a metal-based detergent or an additive including phosphorus is reduced.
Inventors:
IWASAKI JUNYA (JP)
SHIMIZU YASUNORI (JP)
SHIMIZU YASUNORI (JP)
Application Number:
PCT/JP2014/063381
Publication Date:
November 27, 2014
Filing Date:
May 20, 2014
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M141/06; C10M129/76; C10M133/40; C10N30/04; C10N30/08; C10N40/25
Foreign References:
| JP2003292982A | 2003-10-15 | |||
| JPH0762371A | 1995-03-07 | |||
| JPH08165484A | 1996-06-25 | |||
| JP2009227918A | 2009-10-08 | |||
| JP2009108157A | 2009-05-21 | |||
| JP2009545640A | 2009-12-24 | |||
| JPH07165671A | 1995-06-27 | |||
| JP2009545640A | 2009-12-24 | |||
| JP2003252887A | 2003-09-10 | |||
| JPH0322438B2 | 1991-03-26 | |||
| JP2004002866A | 2004-01-08 |
Other References:
See also references of EP 3000866A4
"Petroleum Product And Lubricants - Neutralization Number Test Method", JIS K 2501
"Petroleum Product And Lubricants - Neutralization Number Test Method", JIS K 2501
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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