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Perfluorinated sulfonic acid polymer membrane having porous surface layer and method for preparing the same
US9522427B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9522427-B2 |
| Application number | US-201313796083-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 12, 2013 |
| Priority date | Jun 1, 2012 |
| Publication date | Dec 20, 2016 |
| Grant date | Dec 20, 2016 |
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- Title
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Abstract
Official abstract text for this publication.
Provided are a perfluorinated sulfonic acid polymer membrane having a porous surface layer, which includes a surface layer and a bottom layer present at the bottom of the surface layer, wherein the surface layer is a porous layer, and the bottom layer is non-porous dense layer, and a method for preparing the same through a solvent evaporation process.
First claim
Opening claim text (preview).
What is claimed is: 1. A perfluorinated sulfonic acid polymer monolithic membrane, consisting of a surface porous membrane layer and a bottom non-porous dense membrane layer present at the bottom of the surface porous membrane layer, wherein the surface porous membrane layer and the bottom non-porous dense membrane layer constitutes a monolithic membrane casted as a single membrane, and the surface porous membrane layer is made by a solvent evaporation method using a non-solvent. 2. The perfluorinated sulfonic acid polymer membrane according to claim 1 , wherein the perfluorinated sulfonic acid polymer membrane is used in fuel cells, sensors, electrolytic cells, gas separators, or humidifiers.
Assignees
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Classifications
Cross-Sectional Technologies · mapped topic
Solution · CPC title
- B29C39/003Primary
characterised by the choice of material · CPC title
consisting of layers of polymers with at least one layer being ionically conductive · CPC title
characterised by membrane-electrode assemblies [MEA] (H01M8/12 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US9522427B2 cover?
- Provided are a perfluorinated sulfonic acid polymer membrane having a porous surface layer, which includes a surface layer and a bottom layer present at the bottom of the surface layer, wherein the surface layer is a porous layer, and the bottom layer is non-porous dense layer, and a method for preparing the same through a solvent evaporation process.
- Who is the assignee on this patent?
- Korea Inst Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification B29C39/003. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 20 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).