Resin composition and resin molded article
US-10246582-B2 · Apr 2, 2019 · US
Copolymer, polymer, molding material and resin molded body
US10647811B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10647811-B2 |
| Application number | US-201615562572-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 5, 2016 |
| Priority date | Apr 6, 2015 |
| Publication date | May 12, 2020 |
| Grant date | May 12, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
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 by copolymerizing two or more cycloolefin monomers, wherein a glass transition temperature (Tg) is 100° C. or higher, a refractive index is 1.545 or higher, and an Abbe's number is 50 or larger; a polymer (B) selected from: a ring-opening homopolymer obtained by ring-opening polymerization of only a monomer represented by formula (I), a ring-opening copolymer obtained by ring-opening copolymerization of the monomer represented by formula (I) and a monomer capable of ring-opening copolymerization with the monomer represented by formula (I), a hydrogenated product of the ring-opening homopolymer and a hydrogenated product of the ring-opening copolymer; a forming material containing the copolymer (A) or the polymer (B); and a resin formed article obtained by forming the forming material.
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 and 179° C. or lower, 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 monomer represented by the following formula (I) 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
derived from other polycyclic systems · CPC title
statistical · CPC title
Mechanical aspects · CPC title
having condensed rings · CPC title
Ring opening metathesis polymerisation [ROMP] · CPC title
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Frequently asked questions
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- What does patent US10647811B2 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 by copolymerizing two or more cycloolefin monomers, wherein a glass transition temperature (Tg) is 100° C. or higher, a refractive index is 1.545 or higher, and an Abbe's number is 50 or larger; a polymer (B) selected fr…
- Who is the assignee on this patent?
- Zeon Corp
- What technology area does this patent fall under?
- Primary CPC classification C08F8/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 12 2020 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).