Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 13, 2007
Patent Application Number
11319802
Date Filed
December 29, 2005
Patent Primary Examiner
Patent abstract
A process to substantially remove the fluorinated anionic surfactants from fluoropolymer dispersions comprising the following steps:a) addition to the fluoropolymer dispersion of an anionic polyelectrolyte;b) contact of the dispersion with an anionic exchanger;c) separation of the dispersion from the anionic exchanger and recovery of the dispersion substantially fluorinated anionic surfactant free.
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