公开(公告)号：US20180305634A1

公开(公告)日：2018-10-25

申请号：US15569542

申请日：2016-03-28

Applicant: KYB Corporation

Inventor： Christian Scholz ,  Yoshihiro Ito ,  Shinji Kato

IPC: C10M145/28 ,  C10M107/02 ,  C10M105/38

CPC classification number: C10M145/28 ,  C10M105/36 ,  C10M105/38 ,  C10M107/02 ,  C10M107/34 ,  C10M111/04 ,  C10M171/00 ,  C10M2203/1025 ,  C10M2205/0285 ,  C10M2207/026 ,  C10M2207/2805 ,  C10M2207/2825 ,  C10M2207/2835 ,  C10M2209/1033 ,  C10M2209/1055 ,  C10M2215/08 ,  C10M2215/223 ,  C10M2223/04 ,  C10M2223/041 ,  C10M2229/041 ,  C10N2220/022 ,  C10N2220/023 ,  C10N2220/032 ,  C10N2230/06 ,  C10N2230/36 ,  C10N2240/06 ,  C10N2240/08 ,  F16F9/32 ,  C10M2209/1065 ,  C10M2209/1085 ,  C10N2220/021 ,  C10M2209/1095

Abstract: [Problem]Provided is an operating oil for shock absorber in which influences against rubber materials are controlled.[Solution]An operating oil coming into contact with a rubber material, the operating oil containing a polyalkylene glycol and at least one base oil selected from a fatty acid diester, a poly-alfa-olefin, and a lubricating oil classified as GIII in American Petroleum Institute (API).[Effect]According to the operating oil, in view of the fact that swelling properties of a rubber material, such as a seal material, etc., are reduced, conventionally used rubber materials can be used without being changed.