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:
Aug. 29, 2023

Filed:

Mar. 18, 2019
Applicants:

Japan Polyethylene Corporation, Tokyo, JP;

Japan Polypropylene Corporation, Tokyo, JP;

Inventors:

Yohei Konishi, Kanagawa, JP;

Hiromasa Tanahashi, Kanagawa, JP;

Hisashi Ohtaki, Kanagawa, JP;

Naomasa Sato, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/70 (2006.01); C08F 220/18 (2006.01); C08F 210/02 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
C08F 210/02 (2013.01); C08F 4/65912 (2013.01); C08F 4/7027 (2013.01); C08F 4/7031 (2013.01); C08F 4/7098 (2013.01); C08F 220/1804 (2020.02);
Abstract

A catalyst configured to be handled more easily than conventional catalysts and configured to copolymerize an α-olefin and a (meth)acrylic acid ester with high activity. The objects are achieved by polymerization using an olefin polymerization catalyst which contains a metal complex obtained by reacting a ligand having a specific structure and a transition metal compound containing a transition metal selected from nickel or palladium having a specific structure.


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