Resin composition and resin molded article
US-10246582-B2 · Apr 2, 2019 · US
Copolymer, polymer, molding material and resin molded body
US11192976B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11192976-B2 |
| Application number | US-202016838041-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 2, 2020 |
| Priority date | Apr 6, 2015 |
| Publication date | Dec 7, 2021 |
| Grant date | Dec 7, 2021 |
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- Title
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Abstract
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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.
First claim
Opening claim text (preview).
The invention claimed is: 1. 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. The copolymer (A) according to claim 1 , wherein at least one of the acyclic olefin monomers is an α-olefin-based monomer having 2 to 18 carbon atoms. 3. The copolymer (A) according to claim 1 , wherein at least one of the acyclic olefin monomers is ethylene.
Assignees
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Classifications
NMR spectroscopy · CPC title
with a bridged ring system · CPC title
Mechanical aspects · CPC title
derived from other polycyclic systems · CPC title
- C08G61/08Primary
of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring · CPC title
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- What does patent US11192976B2 cover?
- 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 t…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08G61/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 07 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).