Polymer and polymer electrolyte membrane comprising same
US-2017338504-A1 · Nov 23, 2017 · US
Method for producing polymer electrolyte molded article, polymer electrolyte material, polymer electrolyte membrane, and polymer electrolyte fuel cell
US8986903B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8986903-B2 |
| Application number | US-81573706-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 14, 2006 |
| Priority date | Feb 15, 2005 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing a polymer electrolyte article comprising a crystalline polymer, the method comprising forming a precursor of the polymer electrolyte article, wherein forming the precursor comprises introducing one or more protective groups in a main chain of the precursor and forming a membrane-shaped precursor, wherein the introducing the one or more protective groups in the main chain of the precursor lowers a degree of crystallinity of the cry…
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- C08G65/4056Primary
Chemistry & Metallurgy · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8986903B2 cover?
- The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to …
- Who is the assignee on this patent?
- Izuhara Daisuke, Taiko Hiroshi, Okada Yuriko, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C08G65/4056. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 24 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).