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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9745536 B1

PDFFull Text
Date of Patent:
Aug. 29, 2017

Filed:

Aug. 25, 2014

Lubricating oil composition for shock absorber

Applicant:

Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;

Inventors:

Shuichi Sakanoue, Chiba, JP;

Aya Aoki, Sodegaura, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Vishal Vasisth

Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 137/10 (2006.01); B01D 19/04 (2006.01); C10M 133/06 (2006.01); C10M 141/10 (2006.01); C10M 161/00 (2006.01); C10M 101/02 (2006.01); C10M 155/02 (2006.01);
U.S. Cl.
CPC ...
C10M 169/044 (2013.01); C10M 101/02 (2013.01); C10M 133/06 (2013.01); C10M 137/10 (2013.01); C10M 141/10 (2013.01); C10M 155/02 (2013.01); C10M 161/00 (2013.01); C10M 2203/1006 (2013.01); C10M 2203/1025 (2013.01); C10M 2215/04 (2013.01); C10M 2223/045 (2013.01); C10M 2229/02 (2013.01); C10M 2229/041 (2013.01); C10M 2229/051 (2013.01); C10N 2210/02 (2013.01); C10N 2230/06 (2013.01); C10N 2230/70 (2013.01); C10N 2240/08 (2013.01);
Abstract

The lubricating oil composition for a shock absorber of the present invention contains (A) a base oil composed of a mineral oil and/or a synthetic oil, (B) a tertiary amine represented by the following general formula (I), and (C) a zinc dithiophosphate represented by the following general formula (II): wherein Rand Reach independently represent an aliphatic hydrocarbon group having from 1 to 5 carbon atoms, and Rrepresents an aliphatic hydrocarbon group having from 12 to 24 carbon atoms in the general formula (I), wherein Rto Reach independently represent one selected from an alkyl group and an alkenyl group each having 1 to 24 carbon atoms in the general formula (II).

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