Expandable functional TFE copolymer fine powder, the expandable functional products obtained therefrom and reaction of the expanded products
US9221926B2 · kind B2 · utility
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33References
12Claims
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Key dates
| Filing date | Oct 24, 2014 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Oct 24, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.