Title:
潤滑油組成物
Document Type and Number:
Japanese Patent JP4663843
Kind Code:
B2
Abstract:
Lubricant compositions comprises a lubricant base oil blended with a boron-containing ashless dispersant (A) in an amount of 0.035 or more percent of boron by mass, and an alkaline earth metal sulfonate having a total base number of 50 to 500 mgKOH/g (B) in an amount of 0.01 or more percent of alkaline earth metal by mass, all the percentages being based on the total mass of the composition and if necessary a phosphorus additive. The lubricant compositions are superior in effect to enhance the dynamic- and static-friction coefficients in a wet clutch.
Inventors:
Hitoshi Komatsubara
Application Number:
JP2000091645A
Publication Date:
April 06, 2011
Filing Date:
March 29, 2000
Export Citation:
Assignee:
jx Nikko Nisseki Energy Co., Ltd.
International Classes:
C10M141/12; C10M125/24; C10M137/02; C10M137/04; C10M137/10; C10M139/00; C10M141/10; C10M159/24; C10M163/00; C10N10/04; C10N20/00; C10N30/04; C10N30/06; C10N40/04
Domestic Patent References:
| JP11293265A | ||||
| JP11349968A | ||||
| JP11349969A | ||||
| JP11349971A | ||||
| JP11349972A | ||||
| JP2000087061A | ||||
| JP11323364A | ||||
| JP2000063869A | ||||
| JP2002544372A |
Foreign References:
| WO1998047989A1 | ||||
| WO1998027187A1 |
Attorney, Agent or Firm:
Junyuki Morita