Coating composition and laminate
US-2024093052-A1 · Mar 21, 2024 · US
Fluoropolymer resin treatment employing heating and oxygen source to reduce discoloration
US9175115B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9175115-B2 |
| Application number | US-201313875337-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 2, 2013 |
| Priority date | May 9, 2012 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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Abstract
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Process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from said aqueous medium to obtain said fluoropolymer resin. The process comprises: heating the fluoropolymer resin to a temperature of about 160° C. to about 400° C.; and exposing the heated fluoropolymer resin to an oxygen source.
First claim
Opening claim text (preview).
What is claimed is: 1. Process for reducing thermally induced discoloration of melt-processible fluoropolymer resin, said fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from said aqueous medium to obtain said fluoropolymer resin, wherein said aqueous fluoropolymer dispersion is polymerized in the presence of hydrocarbon surfactant which causes said thermally induced discolora…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C08F114/26Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9175115B2 cover?
- Process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from said aqueous medium to obtain said fluoropolymer resin. The process comprises: heating the fluoropolymer resin to a temperature of about 160° C. to about 400° C.; and exposing the he…
- Who is the assignee on this patent?
- Du Pont, Chemours Co Fc Llc
- What technology area does this patent fall under?
- Primary CPC classification C08F114/26. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 03 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).