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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 9056931 B1

PDFFull Text
Date of Patent:
Jun. 16, 2015

Filed:

Jun. 27, 2012

Method for producing olefin polymer

Applicants:

Jun Kohiruimaki, Ichihara, JP;

Masao Aida, Ichihara, JP;

Jun Mase, Ichihara, JP;

Kana Minamimoto, Ichihara, JP;

Inventors:

Jun Kohiruimaki, Ichihara, JP;

Masao Aida, Ichihara, JP;

Jun Mase, Ichihara, JP;

Kana Minamimoto, Ichihara, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Tokyo, JP;

Attorney:

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

Primary Examiner:

Caxia Lu

Int. Cl.
CPC ...
C08J 3/09 (2006.01); C08F 4/6592 (2006.01); C08F 10/14 (2006.01); C08F 210/14 (2006.01); C08F 2/06 (2006.01); C08F 6/00 (2006.01); C08F 6/02 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
C08F 210/14 (2013.01); C08J 3/09 (2013.01); C08F 2/06 (2013.01); C08F 6/003 (2013.01); C08F 6/02 (2013.01); C08F 4/65908 (2013.01); C08F 4/65912 (2013.01); C08F 4/65927 (2013.01);
Abstract

A method for producing an olefin polymer including: polymerizing one or more α-olefins each having 6 to 20 carbon atoms in the presence of a metallocene catalyst to obtain an olefin polymer, and diluting a polymerization reaction liquid with a solvent before or simultaneously with deactivation of the catalyst, thereby to lower the liquid viscosity of the polymerization reaction liquid to 10 mPa·s or less to promote deactivation and decalcification of the catalyst.

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Kohiruimaki, Jun. (2015). Method for producing olefin polymer (U.S. Patent No. 9056931). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9056931

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