Title:
緩衝器用潤滑油組成物
Document Type and Number:
Japanese Patent JP6849549
Kind Code:
B2
Abstract:
To provide the lubricant composition for the shock absorber that has an increased static frictional force, a reduced dynamic frictional force and excellent oxidation stability and thermal stability at a slide portion.SOLUTION: The lubricant composition for the shock absorber comprises: lubricant base oil, an amine-based antioxidant, ester of fatty acid and polyalcohol, a copolymer of α-olefin and an ester monomer having a polymerizable unsaturated bond, and fatty acid amide, wherein the lubricant composition for the shock absorber satisfies a condition represented by 0.1≤C(A)≤0.5, 0.1≤C(B)≤1.0, 0.1≤C(C)≤2.0, 0.02≤C(D)≤0.5, 1.0≤C(C)/C(B)≤5.0 and 1.0≤C(B)/C(D)≤5.0 based on a total amount of the composition, wherein C(A) is a content of the amine-based antioxidant, C(B) is the content of the ester, C(C) is the content of the copolymer and C(D) is the content of the fatty acid amide, respectively, and the lubricant composition for the shock absorber has a kinematic viscosity of 2.0 to 3.5 mm/s at 100°C.SELECTED DRAWING: None
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Inventors:
Hitoshi Komatsubara
Toru Aoki
Yoshitaka Manabe
Ryo Sasaki
Shinji Kato
Toru Aoki
Yoshitaka Manabe
Ryo Sasaki
Shinji Kato
Application Number:
JP2017136408A
Publication Date:
March 24, 2021
Filing Date:
July 12, 2017
Export Citation:
Assignee:
eneos corporation
KYB Corporation
KYB Corporation
International Classes:
C10M161/00
Domestic Patent References:
| JP2008133332A | ||||
| JP2014185289A | ||||
| JP9111277A |
Foreign References:
| WO2015025972A1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano