Compositions containing particles of highly fluorinated ion exchange polymer
AssigneeE. I. Du Pont de Nemours and Company
InventorsDennis Edward Curtin, Edward George Howard, Jr.
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Abstract
Liquid compositions containing particles of highly fluorinated ion-exchange polymer having sulfonate functional groups with an ion exchange ratio of less than about 33. The compositions contain at least about 25% by weight of polymer particles having a particle size of about 2 nm to about 30 nm.
Claims14
A liquid composition comprising a liquid dispersion medium comprising about 0.5 to about 50% by weight particles of a highly fluorinated ion-exchange polymer having sulfonate functional groups with an ion exchange ratio of less than about 33, at least about 25% by weight of said polymer particles having a particle size of about 2 nm to about 30 nm, said composition comprising a nonaqueous liquid dispersion medium, said composition being substantially free of water.
Dependencies are inferred from the claim text.