Title:
潤滑油組成物
Document Type and Number:
Japanese Patent JP5283297
Kind Code:
B2
Abstract:
Lubricating oil compositions particularly suitable for automatic transmissions comprising a lubricating base oil, (A) a boron-containing ashless dispersant in an amount of 0.004 to 0.05 percent by mass in terms of boron, based on the total mass of the composition, (B) an alkaline earth metal-based detergent with a base number of 0 to 500 mgKOH/g in an amount of 0.01 percent by mass or more in terms of an alkaline earth metal, based on the total mass of the composition, and (C) a sulfur-based additive in an amount of 0.01 to 0.3 percent by mass in terms of sulfur, based on the total mass of the composition and having excellent anti-wear properties and improved fatigue life by inhibiting pitching.
Inventors:
Morita Eitaro
Application Number:
JP2001282319A
Publication Date:
September 04, 2013
Filing Date:
September 17, 2001
Export Citation:
Assignee:
jx Nikko Nisseki Energy Co., Ltd.
International Classes:
C10M141/12; C10M129/10; C10M169/04; C10M129/54; C10M135/06; C10M135/10; C10M135/18; C10M135/20; C10M135/32; C10M135/36; C10M139/00; C10M159/22; C10M159/24; C10M163/00; C10M167/00; C10N10/04; C10N10/12; C10N20/00; C10N30/00; C10N30/06; C10N40/00; C10N40/04; C10N40/12; C10N40/25; C10N40/30
Domestic Patent References:
| JP8253785A | ||||
| JP2000087061A | ||||
| JP2000160183A | ||||
| JP2000109875A | ||||
| JP2000063878A | ||||
| JP2001506302A | ||||
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| JP2001303087A |
Attorney, Agent or Firm:
Junyuki Morita
Hideyo Okazawa
Hideyo Okazawa