Removing fluorosurfactant from aqueous fluoropolymer dispersions using monodisperse ion exchange resin
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United States of America Patent
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Feb 9, 2010
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app pub date -
Dec 2, 2005
filing date -
Dec 22, 2004
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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.
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