Degradable polymeric compositions and articles comprising same
US-2024425683-A1 · Dec 26, 2024 · US
Transparent film
US9340652B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9340652-B2 |
| Application number | US-201314423893-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 24, 2013 |
| Priority date | Aug 31, 2012 |
| Publication date | May 17, 2016 |
| Grant date | May 17, 2016 |
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Abstract
Official abstract text for this publication.
A cyclic olefin resin film which has heat resistance and improved brittleness. A heat-resistant transparent film which has an internal haze value of 1.0% or less and contains a cyclic olefin resin having a refractive index of n1 and a glass transition temperature (Tg) of 170° C. or more and a styrene elastomer that has a refractive index of n2 so that Δn=|n2−n1| is 0.012 or less. The heat-resistant transparent film may contain two or more kinds of styrene elastomers, and the cyclic olefin resin may be a copolymer of norbornene and ethylene.
First claim
Opening claim text (preview).
The invention claimed is: 1. A transparent film, comprising a cyclic olefin resin having a refractive index of n1 and a glass transition point (Tg) of 170° C. or more, and at least one styrene based elastomer having a refractive index of n2 so that Δn=|n2−n1| is 0.012 or less, wherein an internal haze value of a test piece having a thickness of 100 μm is 1.0% or less as measured in a polyethylene glycol liquid in accordance with JIS K7136, wherein the transparent film comprises…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C08J5/18Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9340652B2 cover?
- A cyclic olefin resin film which has heat resistance and improved brittleness. A heat-resistant transparent film which has an internal haze value of 1.0% or less and contains a cyclic olefin resin having a refractive index of n1 and a glass transition temperature (Tg) of 170° C. or more and a styrene elastomer that has a refractive index of n2 so that Δn=|n2−n1| is 0.012 or less. The heat-resis…
- Who is the assignee on this patent?
- Polyplastics Co
- What technology area does this patent fall under?
- Primary CPC classification C08J5/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 17 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).