Title:
SHOCK ABSORBER LUBRICANT COMPOSITION, SHOCK ABSORBER, AND METHOD FOR MODIFYING FRICTION OF SHOCK ABSORBER LUBRICANT
Document Type and Number:
WIPO Patent Application WO/2021/070433
Kind Code:
A1
Abstract:
Problem: To provide a shock absorber lubricant composition, shock absorber, and method for modifying the friction of the shock absorber lubricant composition whereby a balance between operational stability and ride quality can be achieved, particularly at extremely low vibrational amplitudes. Solution: A shock absorber lubricant composition containing a base oil and a friction modifier, wherein: the friction modifier contains pentaerythritol esters; the pentaerythritol esters include pentaerythritol tetraester at the highest proportion, or in an amount of 50 mass% or greater; and the pentaerythritol ester content is 0.5 mass% or greater.
Inventors:
KATO SHINJI (JP)
Application Number:
PCT/JP2020/026147
Publication Date:
April 15, 2021
Filing Date:
July 03, 2020
Export Citation:
Assignee:
KYB CO LTD (JP)
International Classes:
C10M169/04; C10M129/74; C10M137/10; F16F9/32; C10N10/04; C10N20/00; C10N30/00; C10N40/06
Domestic Patent References:
| WO2018124873A1 | 2018-07-05 |
Foreign References:
| JP2013199535A | 2013-10-03 | |||
| JP2012224653A | 2012-11-15 | |||
| JP2014019713A | 2014-02-03 | |||
| JP2012511077A | 2012-05-17 | |||
| US20140343316A1 | 2014-11-20 |
Attorney, Agent or Firm:
SUDO, Akinobu et al. (JP)
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