Title:
CYCLIC OLEFIN COPOLYMER, CYCLIC OLEFIN COPOLYMER COMPOSITION, MOLDED BODY AND OPTICAL COMPONENT
Document Type and Number:
WIPO Patent Application WO/2023/171221
Kind Code:
A1
Abstract:
The present invention provides a cyclic olefin copolymer which comprises a constituent unit (A) that is derived from an olefin monomer represented by formula (1) and a constituent unit (B) that is derived from at least one cyclic olefin monomer selected from the group consisting of a cyclic olefin monomer represented by formula (2) and a cyclic olefin monomer represented by formula (3), wherein: if the total content of the constituent unit (A) and the constituent unit (B) in the cyclic olefin copolymer is taken as 100% by mole, the content of the constituent unit (A) is 40% by mole to 70% by mole and the content of the constituent unit (B) is 30% by mole to 60% by mole; the weight average molecular weight (Mw) as determined by gel permeation chromatography (GPC) is 50,000 to 500,000; and the glass transition temperature (Tg) is 150°C or higher.
Inventors:
LEE JOOYEON (JP)
OGAWA RYOHEI (JP)
NAKASHIMA MAKOTO (JP)
OGAWA RYOHEI (JP)
NAKASHIMA MAKOTO (JP)
Application Number:
PCT/JP2023/004311
Publication Date:
September 14, 2023
Filing Date:
February 09, 2023
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C08F210/00; C08F232/00; G02B1/04
Domestic Patent References:
| WO2021149400A1 | 2021-07-29 | |||
| WO2023276873A1 | 2023-01-05 |
Foreign References:
| JP2019172954A | 2019-10-10 | |||
| JP2019133157A | 2019-08-08 | |||
| JP2007119660A | 2007-05-17 | |||
| JP2021147577A | 2021-09-27 | |||
| JP2018145425A | 2018-09-20 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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