Solutions of sulfonyl fluoride compounds and fluoropolymers

Details Solutions of sulfonyl fluoride compounds and fluoropolymers Solutions of sulfonyl fluoride compounds and fluoropolymers

1980-08-08

1982-09-07

Henderson, C. A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

204296, 2105002, 260543F, 26044F, 521 27, 560184, 524316, 524544, C08K 542, C08K 510

Patent

active

043483100

ABSTRACT:
Solutions are disclosed with solvents having completely halogenated, saturated, hydrocarbon backbones and solubility parameters within a particular range. Preferred solvent have at least one ether linkage. An exemplary solvent is ##STR1## wherein X is F, Cl, Br, and I; n is 0, 1, and 2; m is 1, 2, and 3; and Y is COOCH.sub.3 and SO.sub.2 F. The solutions include perfluorinated copolymers having high equivalent weight which have been prepared from tetrafluoroethylene and perfluorinated sulfonyl fluoride- or carboxyl-containing vinyl monomers.

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