METHOD FOR PRODUCING CYCLIC OLEFIN COPOLYMER

Title:

METHOD FOR PRODUCING CYCLIC OLEFIN COPOLYMER

Document Type and Number:

WIPO Patent Application WO/2024/084974

Kind Code:

A1

Abstract:

The present invention provides a method for producing a cyclic olefin copolymer, the method enabling efficient production of a cyclic olefin copolymer through copolymerization of monomers including ethylene and a norbornene monomer, while suppressing generation of polyethylene-like impurities.　Monomers including a norbornene monomer and ethylene are polymerized in the presence of a metal-containing catalyst that has a specific structure. A compound which has a bond represented by M-A-Z is used as the metal-containing catalyst. M represents a group 4 transition metal atom of the periodic table. A represents an oxygen atom, a sulfur atom, a selenium atom or a tellurium atom; and Z represents a phenyl group having a substituent. With respect to the phenyl group represented by Z, a hydrocarbon group which may contain a silicon atom or a germanium atom is bonded at the para position of the position at which A is bonded.

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WO/2004/022612	PHOTORESISTS, FLUOROPOLYMERS AND PROCESSES FOR 157 NM MICROLITHOGRAPHY

Inventors:

SUZUKI KEN (JP)
TADA TOMOYUKI (JP)
NOMURA KOTOHIRO (JP)

Application Number:

PCT/JP2023/036279

Publication Date:

April 25, 2024

Filing Date:

October 04, 2023

Export Citation:

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Assignee:

POLYPLASTICS CO LTD (JP)
TOKYO METROPOLITAN PUBLIC UNIV CORPORATION (JP)

International Classes:

C08F232/00; C08F4/6592; C08F210/02

Attorney, Agent or Firm:

SHOBAYASHI Masayuki et al. (JP)

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