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.

Date of Patent:
Sep. 14, 2010

Filed:

Nov. 25, 2005
Applicants:

Yuriko Iimura, Sodegaura, JP;

Hideki Hirano, Sodegaura, JP;

Yasushi Tohi, Sodegaura, JP;

Naomi Urakawa, Sodegaura, JP;

Inventors:

Yuriko Iimura, Sodegaura, JP;

Hideki Hirano, Sodegaura, JP;

Yasushi Tohi, Sodegaura, JP;

Naomi Urakawa, Sodegaura, JP;

Assignee:

Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 107/02 (2006.01); C10L 1/192 (2006.01);
U.S. Cl.
CPC ...
Abstract

A synthetic lubricating oil comprising an α-olefin (co)polymer defined by the features (i) to (v). Also, a lubricating oil composition including the above-mentioned synthetic lubricating oil and a low-viscosity base oil. The synthetic lubricating oil and the lubricating oil composition have high thermal oxidation stability and are excellent in viscosity index, low-temperature viscosity properties and shear stability.


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