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Title:
Lubricating oil composition
Document Type and Number:
Japanese Patent JP6235864
Kind Code:
B2
Abstract:
Provided is a lubricating oil composition containing (A) 70 mass% or more and 95 mass% or less of a poly-±-olefin base oil, (B) 5 mass% or more and 20 mass% or less of an ester-based base oil, and (C) an ester-based defoaming agent, the poly-±-olefin base oil (A) being a polymer of an ±-olefin having 8 to 12 carbon atoms. The lubricating oil composition is able to keep excellent defoaming performance over a long period of time and is suitable as a step-up gear oil composition for wind power generation.

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Inventors:
Takuya Ohno
Taihei Okada
Application Number:
JP2013225391A
Publication Date:
November 22, 2017
Filing Date:
October 30, 2013
Export Citation:
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Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C10M169/04
Domestic Patent References:
JP8183985A
JP2013256561A
Foreign References:
WO2011142345A1
WO2010084966A1
Attorney, Agent or Firm:
Tamotsu Otani
Yoshio Takizawa



 
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