Title:
LUBRICATING OIL COMPOSITION, LUBRICATING METHOD, AND TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2017/150656
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 synthetic oil that has a 2.5 mm2/s or lower kinematic viscosity at 100°C and (2) a polymethacrylate that has a prescribed structural unit and has a monovalent 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/JP2017/008255
Publication Date:
September 08, 2017
Filing Date:
March 02, 2017
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C10M145/14; C10N20/02; C10N20/04; C10N30/02; C10N40/04
Foreign References:
JP2009167277A | 2009-07-30 | |||
JP2010285471A | 2010-12-24 | |||
JP2009179694A | 2009-08-13 | |||
JP2008133440A | 2008-06-12 | |||
JP2006117854A | 2006-05-11 | |||
JP2004149794A | 2004-05-27 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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