PROCESS FOR REMOVING FLUORINE-CONTAINING EMULSIFIER FROM AQUEOUS DISPERSIONS OF FLUOROPOLYMERS

摘要

Process For Removing Fluorine-Containing Emulsifier From Aqueous Dispersions of Fluoropolymers Fluorine-containing emulsifiers can be removed from fluoropolymer dispersions by adding to the dispersion a nonionic emulsifier, removing the fluorine-containing emulsifier by contact with an anion exchanger and separating the dispersion from the anion exchanger. The resulting dispersions can be concentrated and used for coating applications.