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US 2006/0135654 A1Published application
Removing fluorosurfactant from aqueous fluoropolymer dispersions using monodisperse ion exchange resin
AssigneeE. I. Du Pont de Nemours and Company
InventorsSteven Swearingen, William O'Brien, Charles Noelke
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Abstract
A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion comprising passing said stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion through a fixed bed of ion exchange resin beads comprising a polymer and functional groups to reduce fluorosurfactant content, the ion exchange resin beads being monodisperse.
Claims14
A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion comprising:
- passing said stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion through a fixed bed of ion exchange resin beads comprising a polymer and functional groups to reduce fluorosurfactant content, said ion exchange resin beads being monodisperse.
Dependencies are inferred from the claim text.