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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 9023960 B1

PDFFull Text
Date of Patent:
May. 05, 2015

Filed:

Dec. 25, 2009

Process for producing α-olefin polymer, α-olefin polymer, and lubricating oil composition

Applicants:

Kiyokazu Katayama, Chiba, JP;

Hideaki Noda, Chiba, JP;

Hitomi Shimizu, Chiba, JP;

Kiyohiko Yokota, Chiba, JP;

Inventors:

Kiyokazu Katayama, Chiba, JP;

Hideaki Noda, Chiba, JP;

Hitomi Shimizu, Chiba, JP;

Kiyohiko Yokota, Chiba, JP;

Assignee:

Idemitsu Kosan Co., Ltd., Tokyo, JP;

Attorney:

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

Primary Examiner:

Caixia Lu

Int. Cl.
CPC ...
C08F 4/642 (2006.01); C08F 4/643 (2006.01); C08F 4/6592 (2006.01); C08F 10/14 (2006.01); C08F 210/14 (2006.01); C08F 8/04 (2006.01); C08F 10/00 (2006.01); C10M 107/10 (2006.01); C10M 143/08 (2006.01); C08F 4/659 (2006.01); C08F 110/02 (2006.01); C08F 210/16 (2006.01);
U.S. Cl.
CPC ...
C08F 8/04 (2013.01); C08F 4/65912 (2013.01); C08F 10/00 (2013.01); C08F 110/02 (2013.01); C08F 210/16 (2013.01); C10M 107/10 (2013.01); C10M 143/08 (2013.01); C10M 2205/028 (2013.01); C10M 2205/0285 (2013.01); C10N 2220/021 (2013.01); C10N 2220/022 (2013.01); C10N 2220/023 (2013.01); C10N 2230/54 (2013.01); C10N 2240/04 (2013.01); C10N 2240/042 (2013.01); C10N 2240/06 (2013.01); C10N 2240/08 (2013.01); C10N 2240/10 (2013.01); C10N 2240/101 (2013.01); C10N 2240/104 (2013.01); C10N 2240/105 (2013.01); C10N 2240/14 (2013.01); C10N 2240/30 (2013.01); C10N 2240/401 (2013.01); C10N 2240/402 (2013.01); C10N 2250/10 (2013.01); C10N 2270/00 (2013.01); C08F 4/65908 (2013.01); Y10S 526/943 (2013.01);
Abstract

Provided is a method of producing an α-olefin polymer including a step of polymerizing one or more kinds of α-olefins each having 6 to 20 carbon atoms with a catalyst obtained by using a specific transition metal compound. By the method, an α-olefin polymer having a viscosity suitable for use in a lubricating oil can be produced on an industrial scale with ease, and further, the characteristics of the product can be widely changed through the control of reaction conditions.

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