Title:
潤滑油組成物
Document Type and Number:
Japanese Patent JP4028614
Kind Code:
B2
Abstract:
A lubricating oil composition is provided, which comprises a lubricating base oil and based on the whole weight of the lubricating oil composition, (A) 0.5 wt% to 10 wt% of a metal salicylate having a total base number of from 100 mg-KOH/g to 195 mg-KOH/g, (B) 0.1 wt% to 10 wt% of a diarylamine compound, (C) 0.1 wt% to 10 wt% of a hindered phenol compound, and (D) 1 wt% to 10 wt% of a polyalkenylsuccinimide and/or a boron-containing polyalkenylsuccinimide. Also provided is a lubricating oil composition which further comprises 0.1 wt% to 10 wt% of a metal phenate having a total base number of from 100 mg-KOH/g to 300 mg-KOH/g as a component (E) in addition to the above components (A) to (D). The lubricating oil composition is excellent in all properties of detergency, NOx oxidation resistance and thermal oxidation resistance and suitable as a long-life engine oil for gas engine heat pumps.
More Like This:
| JPH07150165 | FRICTION MODIFIER COMPOSITION AND ITS USE |
| JP3401378 | LUBRICATING OIL COMPOSITION |
| WO/2002/081604 | HYDRAULIC FLUIDS WITH IMPROVED ANTI-CORROSION PROPERTIES |
Inventors:
Yasuki Samukawa
Masakichi Shimada
Shiomi Masaaki
Masakichi Shimada
Shiomi Masaaki
Application Number:
JP3431797A
Publication Date:
December 26, 2007
Filing Date:
February 03, 1997
Export Citation:
Assignee:
TonenGeneral Sekiyu KK
International Classes:
C10M141/06; C10M163/00; C10M141/12; C10M167/00; C10M129/10; C10M133/12; C10M133/16; C10M135/20; C10M137/10; C10M139/00; C10M159/22; C10N10/04; C10N20/00; C10N30/04; C10N30/08; C10N30/10; C10N40/25; C10N60/14
Domestic Patent References:
| JP8253782A | ||||
| JP8302378A | ||||
| JP93463A | ||||
| JP7126681A | ||||
| JP8165485A | ||||
| JP971795A |
Foreign References:
| EP0725129A1 |
Attorney, Agent or Firm:
Kohei Kubota