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:
Jul. 31, 2001
Filed:
Mar. 24, 2000
Noriyoshi Tanaka, Tokyo, JP;
Aritoshi Fukushima, Tokyo, JP;
Kazuhisa Morita, Tokyo, JP;
Yoko Saito, Tokyo, JP;
Atsuo Miyashita, Tokyo, JP;
Asahi Denka Kogyo K.K., Tokyo, JP;
Abstract
In diesel engines, soot is produced by combustion and enters into the engine oil, preventing the engine lubricant from fully exercising its lubricity. The present invention provides a lubricating composition comprising a lubricating basestock, an organic molybdenum compound (A) and succinimide (B) having 0.01 or less of an IR spectrum absorbance peak intensity ratio &agr;/&bgr;, wherein &agr; represents an absorbance peak intensity at 1,550±10 cm,and &bgr; represents an absorbance peak intensity at 1,700±10 cm,. Preferably, the organic molybdenum compound is the compound represented by the following formula (1) or formula (2):