Fluorosulfonic acid organic polymers

Details Fluorosulfonic acid organic polymers Fluorosulfonic acid organic polymers

2007-12-11

2007-12-11

Smith, Duane (Department: 1724)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C526S243000, C502S168000, C502S151000, C502S217000, C524S262000

Reexamination Certificate

active

10477341

ABSTRACT:
The present invention provides for a composition and a process for forming the composition. The composition comprises an organic polymer and 0.5-40% by weight of the composition of a siloxane, the organic polymer having a fluorinated backbone and 3-20 mol-% of pendant groups represented by the formula (I): —Op—[CF(Rf1)CF—Om]n—CF2CF2SO3X; wherein Rfis F or2CF2SO3X; wherein Rfis F or a perfluoroalkyl radical having 1-10 carbon atoms either unsubstituted or substituted by one or more ether oxygen atoms, m=0 or 1, n=0) to 3, p=0 or 1, and X is H or an alkali metal; the siloxane comprising two or more groups which need not be the same represented by the formula (II): —OaSi(OH)b-aR13-bR2Rf2SO3; wherein a=1; 1 to b, b=1 to R1is a non-hydrolyzable group independently selected from the group consisting of alkyl, cycloalkyl, aryl and aralkyl, X is is an alkali metal or hydrogen, R2is a bidentate alkylene radical either unsubstituted or substituted by at least one ether oxygen atom with the proviso that R2has at least two carbon atoms linearly disposed between Si and Rf2, and Rf2is a perfluoroalkylene ether radical either unsubstituted or substituted by at least one ether oxygen atom.

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