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US-2024101730-A1 · Mar 28, 2024 · US
Concentrated fluoropolymer dispersions stabilized with anionic polyelectrolyte dispersing agents
US8937112B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8937112-B2 |
| Application number | US-201313970648-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 20, 2013 |
| Priority date | May 31, 2006 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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Abstract
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An aqueous fluoropolymer dispersion comprising fluoropolymer particles having an average particle size of about 10 to about 400 nm. The dispersion has a solids content of at least about 35 to about 70 wt % and comprises about 0.03 wt % to about 10 wt % anionic polyelectrolyte dispersing agent based on the weight of fluoropolymer solids. The dispersion has a Gel Time of at least about 100 seconds.
First claim
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What is claimed is: 1. A process for reducing the fluorosurfactant content of and concentrating an aqueous fluorosurfactant-containing fluoropolymer dispersion comprising: stabilizing fluoropolymer dispersion comprising fluoropolymer particles having an average size of about 10 to about 400 nm and a solids content of about 15 to about 55 wt % with anionic polyelectrolyte dispersing agent; contacting said stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion wit…
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- What does patent US8937112B2 cover?
- An aqueous fluoropolymer dispersion comprising fluoropolymer particles having an average particle size of about 10 to about 400 nm. The dispersion has a solids content of at least about 35 to about 70 wt % and comprises about 0.03 wt % to about 10 wt % anionic polyelectrolyte dispersing agent based on the weight of fluoropolymer solids. The dispersion has a Gel Time of at least about 100 seconds.
- Who is the assignee on this patent?
- Du Pont
- What technology area does this patent fall under?
- Primary CPC classification C08L27/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 20 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).