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Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/145414
Kind Code:
A1
Abstract:
Provided is a lubricating oil composition that has excellent torque transmission power and speed-change characteristics, has an excellent property of preventing the wearing of wet friction materials, can keep the initial torque transmission power and speed-change characteristics over a long period of time, and is suitable as an oil for automatic transmissions and/or continuously variable transmissions. This lubricating oil composition is characterized by comprising, in a lubricating-oil base oil, (A) a fatty acid amide compound represented by formula (1), (B) a thiadiazole, and (C) a phosphorus-based additive, wherein: the sulfur content in the composition is at least 0.2 mass% in terms of sulfur atoms; the phosphorus content in the composition is at most 0.2 mass% in terms of phosphorus atoms; and the ratio of the mass percentage in terms of sulfur atoms to the mass percentage in terms of phosphorus atoms is from 3.0 to 5.0. (In formula (1): R1 represents a C10-30 alkyl group or alkenyl group; R2, R3, R5, and R6 represent hydrogen or a C1-3 alkyl group; R4 represents a C1-4 alkylene group; k is an integer from 0 to 6; m is an integer from 0 to 2; and n, p, and r are integers from 0 to 1.)

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Inventors:
KOMATSUBARA HITOSHI (JP)
Application Number:
PCT/JP2012/079115
Publication Date:
October 03, 2013
Filing Date:
November 09, 2012
Export Citation:
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Assignee:
JX NIPPON OIL & ENERGY CORP (JP)
International Classes:
C10M169/04; C10M101/02; C10M133/16; C10M135/04; C10M135/36; C10M159/04; C10N30/00; C10N40/04; C10N40/12; C10N40/25; C10N40/30
Foreign References:
JP2003073683A2003-03-12
JPH09263782A1997-10-07
JP2012012536A2012-01-19
JPH11263993A1999-09-28
JPH083576A1996-01-09
JPH09263782A1997-10-07
JP2003073683A2003-03-12
JP2001323292A2001-11-22
JP2000355695A2000-12-26
JPH10306292A1998-11-17
Other References:
See also references of EP 2832830A4
Attorney, Agent or Firm:
MORITA, NOBUYUKI (JP)
Yoriyuki Morita (JP)
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