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. 11, 2023
Filed:
Mar. 07, 2019
The University of Tokyo, Tokyo, JP;
Showa Denko K. K., Tokyo, JP;
Japan Polyethylene Corporation, Tokyo, JP;
Kyoko Nozaki, Tokyo, JP;
Shingo Ito, Tokyo, JP;
Junichi Kuroda, Oita, JP;
Yoshikuni Okumura, Oita, JP;
Shinya Hayashi, Oita, JP;
Minoru Kobayashi, Yokkaichi, JP;
Yuichiro Yasukawa, Kawasaki, JP;
THE UNIVERSITY OF TOKYO, Tokyo, JP;
SHOWA DENKO K.K., Tokyo, JP;
JAPAN POLYETHYLENE CORPORATION, Tokyo, JP;
Abstract
The present invention pertains to a method for producing a copolymer of ethylene and an allyl monomer having a polar group represented by general formula (1), or a copolymer of ethylene, an allyl monomer having a polar group represented by general formula (1), and other monomers, wherein the copolymer is produced in the presence of a boron compound having a boron-hydrogen bond or a boron-carbon bond (for example, a compound represented by general formula (2)) by using a metal complex represented by general formula (C1) as a polymerization catalyst (the symbols in the formulas are as described in the description). According to the present invention, a copolymer of ethylene and an allyl monomer can be efficiently produced with high catalytic activity, wherein the copolymer has a polar group and can be used in various applications.