Curing compositions for fluoropolymers

Details Curing compositions for fluoropolymers Curing compositions for fluoropolymers

2008-07-22

2008-07-22

Smith, Duane (Department: 1797)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S340000, C525S343000, C525S379000, C525S341000, C528S275000, C528S282000, C528S308600, C524S779000, C524S380000

Reexamination Certificate

active

07402630

ABSTRACT:
A curative composition comprising a cation and an anion of the formula Anq−Qpm+, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qm+is an organo onium, and Aq−is an anion, provided that at least one Aq−is selected from the formula:wherein each R independently is H, halo, alkyl, aryl, aralkyl, or cycloalkyl, and which also may be halogenated, fluorinated, or perfluorinated, wherein two or more of R and R′ groups may together form a ring, wherein each R group independently may contain one or more heteroatom(s), wherein R′ can be the same as R, with the proviso that R′ cannot be halo. Also provided are a fluoropolymer composition including this curative, a method of making a fluoropolymer, and fluoropolymer articles containing curable or cured fluoropolymer compositions.

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