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.:
Date of Patent:
Aug. 23, 2016
Filed:
Jun. 07, 2013
Jx Nippon Oil & Energy Corporation, Tokyo, JP;
Kazuhiro Yagishita, Tokyo, JP;
JX Nippon Oil & Energy Corporation, Tokyo, JP;
Abstract
The present invention provides a lubricating oil composition having excellent NOx resistance, anti-oxidation properties, base number retainability and detergency, suitably used for an internal combustion engine. The lubricating oil composition comprises a lubricating base oil, (A) a 2,2,6,6-tetraalkylpiperidine derivative and (B) an organic molybdenum compound and/or an organic tungsten compound and preferably further comprises (C) a hindered phenol-type anti-oxidant and/or an aromatic amine-type anti-oxidant or (D) at least one type of compound selected from the group of consisting of phosphorus compounds and metal salts or amine salts. Furthermore, the present invention also provides a method for lubricating a sliding material by contacting a specific lubricating oil composition selected from the above lubricating oil compositions with the sliding material while preventing elution of the copper and lead contained in the material.