Title:
潤滑油組成物
Document Type and Number:
Japanese Patent JP7274277
Kind Code:
B2
Abstract:
A lubricating oil composition comprising a base oil (A), a neutral phosphorus compound (B), an acidic phosphorus compound (C), a sulfur compound (D) and at least one metal salt (E) selected from a metal sulfonate, a metal salicylate, and a metal phenate, in which a content of the acidic phosphorus compound (C) in terms of phosphorus atoms is 10 to 180 ppm by mass based on the total amount of the lubricating oil composition, a content of the sulfur compound (D) in terms of sulfur atoms is 10 to 1000 ppm by mass based on the total amount of the lubricating oil composition, and a content of the metal salt (E) in terms of metal atoms is 5 to 180 ppm by mass based on the total amount of the lubricating oil composition, is provided.
Inventors:
Kazushi Tamura
Application Number:
JP2018199713A
Publication Date:
May 16, 2023
Filing Date:
October 24, 2018
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C10M141/10; C10M163/00
Domestic Patent References:
| JP2003171684A | ||||
| JP2015151490A | ||||
| JP2014517106A |
Foreign References:
| WO2011080970A1 | ||||
| WO2019167431A1 |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Furuhashi Nobushige
Kyoko Tamura
Yukiko Uetake
Toshihide Ishihara
Furuhashi Nobushige
Kyoko Tamura
Yukiko Uetake
Toshihide Ishihara