Title:
潤滑油組成物
Document Type and Number:
Japanese Patent JP6551727
Kind Code:
B2
Abstract:
The present invention relates to a lubricating oil composition prepared by blending (A) a tertiary amine having a specific structure, (B) a metal-based detergent having a total base number according to a perchloric acid method of 50 mgKOH/g or less, (C) a metal-based detergent having a total base number according to a perchloric acid method of 150 mgKOH/g or more, (D) at least one selected from an acidic phosphate and an acidic phosphite, and (E) a lubricating base oil, which satisfies a requirement (X): the mass ratio of the metal fraction derived from the component (B) to the metal fraction derived from the component (C) (B/C) is 0.60 or less.
Inventors:
Yokomizo Masato
Keiichi Narita
Keiichi Narita
Application Number:
JP2015074400A
Publication Date:
July 31, 2019
Filing Date:
March 31, 2015
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C10M163/00
Domestic Patent References:
| JP2010513695A | ||||
| JP2001288488A | ||||
| JP2007332377A |
Foreign References:
| WO2011037054A1 | ||||
| WO2014156307A1 | ||||
| WO2015122525A1 |
Attorney, Agent or Firm:
Tamotsu Otani
Yoshio Takizawa
Yoshio Takizawa