Title:
LUBRICATING OIL COMPOSITION FOR SHOCK ABSORBER AND FRICTION REDUCTION METHOD FOR SHOCK ABSORBER
Document Type and Number:
WIPO Patent Application WO/2015/025972
Kind Code:
A1
Abstract:
Provided is a lubricating oil composition for shock absorbers, having excellent thermal stability and capable of reducing the friction coefficient for rubber. The lubricating oil composition for shock absorbers is characterized by comprising: (A) a mineral oil and/or a base oil comprising a synthetic oil; (B) a zinc dithiophosphate indicated in general formula (I); (C) a fatty acid amide; and (D) a polyhydric alcohol ester. (In the formula, R1-R4 each independently indicate one type selected from a C6-20 linear, branched, or annular alkyl group and a C6-20 linear, branched, or annular alkenyl group.)
Inventors:
SAKANOUE SHUICHI (JP)
AOKI AYA (JP)
AOKI AYA (JP)
Application Number:
PCT/JP2014/072118
Publication Date:
February 26, 2015
Filing Date:
August 25, 2014
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C10M101/02; C10M129/76; C10M133/16; C10M137/10; C10N10/04; C10N20/02; C10N30/06; C10N30/08; C10N40/06
Foreign References:
| JP2009013380A | 2009-01-22 | |||
| JPH09111277A | 1997-04-28 | |||
| JP2008163165A | 2008-07-17 | |||
| JP2008163166A | 2008-07-17 | |||
| JP2009530460A | 2009-08-27 | |||
| JP2009013380A | 2009-01-22 | |||
| JPH05255682A | 1993-10-05 | |||
| JPH05255683A | 1993-10-05 |
Other References:
See also references of EP 3037509A4
Attorney, Agent or Firm:
OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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