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:
Feb. 15, 2022
Filed:
Jan. 29, 2019
The University of Tokyo, Tokyo, JP;
Showa Denko K.k., Tokyo, JP;
Japan Polyethylene Corporation, Tokyo, JP;
Shingo Ito, Tokyo, JP;
Kyoko Nozaki, Tokyo, JP;
Junichi Kuroda, Oita-shi, 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 relates to a method for producing a copolymer of ethylene and an allyl monomer that is represented by formula (1) and has a polar group, or a copolymer of ethylene, the allyl monomer that is represented by formula (1) and has a polar group, and another monomer. This production method is characterized by using a metal complex, which is represented by general formula (C1), as a polymerization catalyst and by having a silane compound, which is represented by general formula (2) and has a silicon-hydrogen bond, coexist with the metal complex. (In the formulae, the symbols are as defined in the description.) According to the present invention, a copolymer of an allyl monomer that has a polar group is able to be produced with high catalytic activity, said copolymer being capable of having various applications.