Ring-opened copolymer
AssigneeZeon Corporation
InventorsYasuo Tsunogae, Shingo Okuno
Life of this patent
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Abstract
A ring-opened copolymer including structural units derived from a norbornene compound having a specific structure and structural units derived from a monocyclic olefin, wherein the proportion of the structural units derived from a norbornene compound is 25 to 90 wt % and the proportion of the structural units derived from a monocyclic olefin is 10 to 75 wt % relative to the total repeating structural units in the ring-opened copolymer, the weight average molecular weight of the ring-opened copolymer is 100,000 to 1,000,000, and the cis/trans ratio of the ring-opened copolymer is 0/100 to 50/50.
Claims16
A ring-opened copolymer comprising structural units derived from a norbornene compound represented by General Formula (1) below and structural units derived from a monocyclic olefin,
- wherein relative to the total repeating structural units in the ring-opened copolymer, the proportion of the structural units derived from a norbornene compound is 25 to 90 wt %, and the proportion of the structural units derived from a monocyclic olefin is 10 to 75 wt %,
- the weight average molecular weight of the ring-opened copolymer is 100,000 to 1,000,000, and
- the cis/trans ratio of the ring-opened copolymer is 0/100 to 50/50,
- wherein R1 to R4 are each a hydrogen atom, a linear hydrocarbon group having 1 to 20 carbon atoms, or a substituent containing a halogen atom, a silicon atom, an oxygen atom, or a nitrogen atom, R1 to R4 are not linked together so that R1 to R4 do not form a ring, and “m” is 0.
Dependencies are inferred from the claim text.