Title:
Lubricating oil composition
Document Type and Number:
Japanese Patent JP6125503
Kind Code:
B2
Abstract:
A lubricating oil composition comprising a lubricating base oil having a kinematic viscosity at 100°C of 1 to 10 mm 2 /s, and a poly(meth)acrylate viscosity index improver containing a structural unit represented by the formula (1) in a proportion of 30 to 90 mol% and having a hydrocarbon main chain ratio of 0.18 or less:
wherein R 1 represents hydrogen or a methyl group, and R 2 represents a linear or branched hydrocarbon group having a carbon number of 6 or less.
Inventors:
Shigeki Matsui
Miyaya Daiya
Hiromitsu Matsuda
Issei Tagawa
Akira Takagi
Miyaya Daiya
Hiromitsu Matsuda
Issei Tagawa
Akira Takagi
Application Number:
JP2014526981A
Publication Date:
May 10, 2017
Filing Date:
July 24, 2013
Export Citation:
Assignee:
jxtg energy corporation
International Classes:
C10M145/14; C10M161/00; C10M165/00; C10M167/00
Domestic Patent References:
| JP2009007562A | ||||
| JP2011140572A | ||||
| JP2011127029A | ||||
| JP2008088215A | ||||
| JP2004169029A | ||||
| JP2003292938A | ||||
| JP2003147332A | ||||
| JP7300596A | ||||
| JP2500528A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano