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Title:
LUBRICATING OIL COMPOSITION, SHOCK ABSORBER, AND METHOD FOR USING LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/004870
Kind Code:
A1
Abstract:
Provided is a lubricating oil composition containing: a base oil (A); a zinc dithiophosphate (B) that contains a compound (B1) represented by general formula (b-1); calcium sulfonate (C); and a seal sweller (D). [In said formula (b-1), R1-R4 each independent represent an alkyl group. However, at least one of R1-R4 represents a predetermined straight chain alkyl group, and at least one of R1-R4 represents a predetermined branched chain alkyl group.]

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Inventors:
SAKANOUE SHUICHI (JP)
KOBAYASHI KENJI (JP)
Application Number:
PCT/JP2021/025095
Publication Date:
January 06, 2022
Filing Date:
July 02, 2021
Export Citation:
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Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M141/08; F16F9/32; C10M135/10; C10M135/34; C10M137/10; C10N10/04; C10N20/00; C10N30/00; C10N30/06; C10N30/08; C10N40/02; C10N40/04; C10N40/06; C10N40/08; C10N40/12; C10N40/22; C10N40/30
Domestic Patent References:
WO2015025977A12015-02-26
WO2020218025A12020-10-29
WO2015025977A12015-02-26
Foreign References:
JP2019085524A2019-06-06
JP2010531923A2010-09-30
JP2017141344A2017-08-17
JPS6253399A1987-03-09
JP2000053991A2000-02-22
JP2018203953A2018-12-27
JP2021102671A2021-07-15
Attorney, Agent or Firm:
KOBAYASHI Hiroshi et al. (JP)
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