Title:
LUBRICATING OIL COMPOSITION, LUBRICATING METHOD, AND TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2017/150687
Kind Code:
A1
Abstract:
A lubricating oil composition is provided which achieves both a high viscosity index and a high shear stability, and which contains (1) a mineral oil that has a 2.5-5 mm2/s kinematic viscosity at 100°C and (2) a polymethacrylate that has a prescribed structural unit and has a functional group containing an oxygen atom in the molecule; a lubricating method and a transmission that use said composition are also provided.
Inventors:
HAMACHI TATSUYA (JP)
Application Number:
PCT/JP2017/008356
Publication Date:
September 08, 2017
Filing Date:
March 02, 2017
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; F16H57/04; C10M101/02; C10M145/14; C10N20/02; C10N20/04; C10N30/00; C10N30/02; C10N40/04; F16C33/10; F16C33/66
Foreign References:
| JP2009167277A | 2009-07-30 | |||
| JP2006117854A | 2006-05-11 | |||
| JP2010285471A | 2010-12-24 | |||
| JP2014152316A | 2014-08-25 | |||
| JPH07102023A | 1995-04-18 | |||
| JP2009256665A | 2009-11-05 | |||
| JP2009179694A | 2009-08-13 | |||
| JP2008133440A | 2008-06-12 | |||
| JP2004149794A | 2004-05-27 |
Other References:
See also references of EP 3425030A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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