Title:
潤滑油組成物
Document Type and Number:
Japanese Patent JP6657248
Kind Code:
B2
Abstract:
The present invention provides a lubricating oil composition comprising: a lubricating base oil; 1.0% by mass or more and 15.0% by mass or less of a dispersant poly(meth)acrylate compound having the weight average molecular weight of 20000 or more and 200000 or less; 0.05% by mass or more and 6.0% by mass or less of a thiadiazole compound; 1.5% by mass or more and 4.0% by mass or less of a polysulfide compound; and 0.2% by mass or more and 1.5% by mass or less of a friction modifier, based on the total amount of the lubricating oil composition, wherein the mass ratio of the polysulfide compound content to the thiadiazole compound content (polysulfide compound/thiadiazole compound) is 0.4 or more and 50 or less, and the kinematic viscosity at 100° C. of the lubricating oil composition is 7.0 mm2/s or more and 35.0 mm2/s or less.
Inventors:
Ariyama Moena
Hitoshi Komatsubara
Takamasa Yasuda
Hitoshi Komatsubara
Takamasa Yasuda
Application Number:
JP2017547901A
Publication Date:
March 04, 2020
Filing Date:
October 28, 2016
Export Citation:
Assignee:
jxtg energy corporation
International Classes:
C10M161/00
Domestic Patent References:
| JP2013203948A | ||||
| JP2013203947A | ||||
| JP2004323850A | ||||
| JP2000063870A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano
Shohei Kumagai
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano
Shohei Kumagai