Expandable functional TFE copolymer fine powder, expanded products and reacted products therefrom
US8809407B2 · kind B2 · utility
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23Claims
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Key dates
| Filing date | Nov 26, 2012 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Nov 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.