Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2015/064722
Kind Code:
A1
Abstract:
Provided is a lubricating oil composition containing (A) 70 to 95 mass% of a poly-α-olefin base oil, (B) 5 to 20 mass% of an ester-based base oil, and (C) an ester-based defoaming agent. The (A) poly-α-olefin base oil is a C8-12 α-olefin polymer. The lubricating oil composition maintains excellent defoaming performance over a long period of time and is suitable as a step-up gear oil composition for wind power generation.
Inventors:
ONO TAKUYA (JP)
OKADA TAHEI (JP)
OKADA TAHEI (JP)
Application Number:
PCT/JP2014/078993
Publication Date:
May 07, 2015
Filing Date:
October 30, 2014
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C10M105/32; C10M105/38; C10M107/10; C10M145/14; C10N20/04; C10N30/18; C10N40/04
Domestic Patent References:
| WO2011142345A1 | 2011-11-17 | |||
| WO2010084966A1 | 2010-07-29 | |||
| WO2008038701A1 | 2008-04-03 |
Foreign References:
| JPH08183985A | 1996-07-16 | |||
| JP2013256561A | 2013-12-26 |
Other References:
See also references of EP 3064564A4
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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