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PROCESS FOR REDUCING FLUOROSURFACTANT CONTENT OF FLUOROPOLYMER DISPERSIONS USING ANIONIC SURFACTANT-TREATED ANION EXCHANGE RESIN
PROCESS FOR REDUCING FLUOROSURFACTANT CONTENT OF FLUOROPOLYMER DISPERSIONS USING ANIONIC SURFACTANT-TREATED ANION EXCHANGE RESIN
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机译:用阴离子表面活性剂处理的阴离子交换树脂降低含氟聚合物分散体的含氟表面活性剂的方法
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摘要
A process for reducing fluorosurfactant content of a stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion. The process includes providing a fixed bed of anion exchange resin having anion exchange groups with counter ions. The anion exchange resin is treated to replace at least some the counter ions with counter ions of non-fluorinated anionic surfactant. The stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion is passed through the treated fixed bed of anion exchange resin.
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