WORKING OIL FOR HYDRAULIC SHOCK ABSORBER, AND HYDRAULIC SHOCK ABSORBER

Title:

WORKING OIL FOR HYDRAULIC SHOCK ABSORBER, AND HYDRAULIC SHOCK ABSORBER

Document Type and Number:

WIPO Patent Application WO/2016/174973

Kind Code:

A1

Abstract:

[Problem] To provide a working oil for shock absorbers which is inhibited from affecting rubber materials. [Solution] A working oil which comes into contact with a rubber material, characterized by comprising a polyalkylene glycol and one or more base oils selected from among fatty acid diesters, poly(α-olefin)s, and the lubricating oils classified as GIII by American Petroleum Institute (API). With this working oil, it is possible to reduce the degree of swelling of rubber materials such as sealing materials and hence use conventional rubber materials as they are.

Inventors:

SCHOLZ CHRISTIAN (JP)
ITO YOSHIHIRO (JP)
KATO SHINJI (JP)

Application Number:

PCT/JP2016/059901

Publication Date:

November 03, 2016

Filing Date:

March 28, 2016

Export Citation:

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Assignee:

KYB CORP (JP)

International Classes:

C10M105/36; C10M105/38; C10M107/34; C10N20/00; C10N30/00; C10N40/06; F16F9/32

Domestic Patent References:

WO2014007879A1	2014-01-09
WO2010005022A1	2010-01-14
WO2008133233A1	2008-11-06

Foreign References:

JPH0565491A	1993-03-19
JPH04314794A	1992-11-05
JPH03285989A	1991-12-17
JP2003119482A	2003-04-23
JP2005154726A	2005-06-16
JP2013199549A	2013-10-03

Other References: