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Fluororesin and riser pipe
US8997797B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8997797-B2 |
| Application number | US-201013258427-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 16, 2010 |
| Priority date | Mar 23, 2009 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
An object of the present invention it to provide a novel fluororesin that has excellent mechanical strength and chemical resistance, and very low permeability at high temperature. The fluorine resin a copolymer that includes copolymerized units derived from tetrafluoroethylene, vinylidene fluoride, and an ethylenically unsaturated monomer other than tetrafluoroethylene and vinylidene fluoride. The fluororesin has a storage modulus E′, as measured at 170° C. by a dynamic viscoelasticity analysis, in the range of 60 to 400 MPa.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fluororesin comprising a copolymer that consists of copolymerized units derived from tetrafluoroethylene, vinylidene fluoride, and an ethylenically unsaturated monomer other than tetrafluoroethylene and vinylidene fluoride, wherein the fluororesin has a storage modulus E′, as measured at 170° C. by a dynamic viscoelasticity analysis, in the range of 60 to 400 MPa and wherein the copolymer consists of 55.0 to 90.0 mol % of copolymerized units deri…
Assignees
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Classifications
- C08F214/22Primary
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8997797B2 cover?
- An object of the present invention it to provide a novel fluororesin that has excellent mechanical strength and chemical resistance, and very low permeability at high temperature. The fluorine resin a copolymer that includes copolymerized units derived from tetrafluoroethylene, vinylidene fluoride, and an ethylenically unsaturated monomer other than tetrafluoroethylene and vinylidene fluoride. …
- Who is the assignee on this patent?
- Kitahara Takahiro, Kawabe Takuma, Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08F214/22. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 07 2015 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).