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US 11,192,976 B2Granted
Copolymer, polymer, molding material and resin molded body
AssigneeZeon Corporation
InventorsKensaku Fujii, Takashi Houkawa, Takuya Komatsubara, Yasuhiro Shimizu
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Abstract
The present invention provides: a copolymer (A) which is a copolymer obtained by copolymerizing one or plural cycloolefin monomers and one or plural acyclic olefin monomers, or a copolymer obtained by copolymerizing two or more cycloolefin monomers, wherein the glass transition temperature (Tg) of the copolymer is 100° C. or higher, the refractive index of the copolymer is 1.545 or higher, and the Abbe's number of the copolymer is 50 or larger, and at least one of the cycloolefin monomers is a deltacyclene.
Claims3
A copolymer (A);
- which is
- a copolymer obtained by copolymerizing one or plural cycloolefin monomers and one or plural acyclic olefin monomers, or
- a copolymer obtained by copolymerizing two or more cycloolefin monomers,
- wherein the glass transition temperature (Tg) of the copolymer is 100° C. or higher, the refractive index of the copolymer is 1.545 or higher, and the Abbe's number of the copolymer is 50 or larger, and
- at least one of the cycloolefin monomers is a deltacyclene.
2 more elements
Dependencies are inferred from the claim text.