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Title:
LUBRICANT OIL COMPOSITION, METHOD FOR PRODUCING LUBRICANT OIL COMPOSITION, AND METHOD FOR LUBRICATING TRANSMISSION GEAR OR REDUCTION GEAR
Document Type and Number:
WIPO Patent Application WO/2021/014965
Kind Code:
A1
Abstract:
Provided is a lubricant oil composition which is capable of exhibiting good wear resistance in a high temperature region in which an oil film does not tend to be retained. The lubricant oil composition comprises (A) a base oil, (B) one or more compounds selected from (B1) zinc dithiophosphate and (B2) sulfurized olefin, (C) a sarcosine compound, and (D) thiophosphoric ester or an amine salt thereof, wherein (A1) a high viscosity base oil having a 100°C kinematic viscosity of 25 mm2/s or more is combined as the (A) base oil.

Inventors:
SUNAGAWA YOJI (JP)
Application Number:
PCT/JP2020/026602
Publication Date:
January 28, 2021
Filing Date:
July 07, 2020
Export Citation:
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Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C10M133/16; C10M135/04; C10M137/10; C10N20/02; C10N30/06; C10N40/04
Domestic Patent References:
WO2017170811A12017-10-05
WO2002097017A12002-12-05
Foreign References:
JPH10306292A1998-11-17
JPH09263782A1997-10-07
JP2014129523A2014-07-10
JP2017078138A2017-04-27
JP2000001687A2000-01-07
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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