Method of purifying a dispersion of ionic fluoropolymer

Details Method of purifying a dispersion of ionic fluoropolymer Method of purifying a dispersion of ionic fluoropolymer

2007-12-04

2007-12-04

Wu, David W. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S544000, C524S700000, C524S800000, C524S805000, C526S249000, C526S250000

Reexamination Certificate

active

10894090

ABSTRACT:
Anionic species are removed from aqueous dispersions of ionic fluoropolymers using anion exchange resins. In some embodiments, cationic species are also removed using cation exchange resins.

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