Title:
CYCLIC OLEFIN COPOLYMER AND PRODUCTION METHOD OF CYCLIC OLEFIN COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2023/149506
Kind Code:
A1
Abstract:
To provide: a cyclic olefin copolymer that is a copolymer of a cyclic olefin monomer and an α-olefin having 3-20 carbon atoms, the copolymer having excellent tensile strength and breaking strain; and a production method of a cyclic olefin copolymer, the method being capable of satisfactorily producing the cyclic olefin copolymer. Provided is a copolymer of a cyclic olefin monomer and an α-olefin having 3-20 carbon atoms, wherein the amount of a structural unit derived from the α-olefin is 10 mol% to 50 mol% inclusive relative to the whole structural unit, the average value of relaxation times corresponding to each hydrogen of the cyclic olefin copolymer in the hydrogen nucleus relaxation times T1ρ by solid NMR measurement for the cyclic olefin copolymer is within the range of 4.5-5.5 msec, and the difference between the maximum value and the minimum value of the relaxation times is within the range of 1.0-3.0 msec.
Inventors:
MIYAGI YU (JP)
NAGAO TATSUHIKO (JP)
NAGAO TATSUHIKO (JP)
Application Number:
PCT/JP2023/003405
Publication Date:
August 10, 2023
Filing Date:
February 02, 2023
Export Citation:
Assignee:
POLYPLASTICS CO (JP)
International Classes:
C08F232/00; C08F4/6592; C08F210/00
Domestic Patent References:
| WO2020204188A1 | 2020-10-08 |
Foreign References:
| JP2018145425A | 2018-09-20 |
Other References:
TANAKA RYO, NAKAYAMA YUUSHOU, SHIONO TAKESHI: "Synthesis of high-molecular weight block copolymers of norbornene and propylene with methyl methacrylate initiated by a fluorenylamido titanium complex", POLYMER CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, CAMBRIDGE, vol. 4, no. 14, 1 January 2013 (2013-01-01), Cambridge , pages 3974, XP093083323, ISSN: 1759-9954, DOI: 10.1039/c3py00400g
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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