Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2011-08-02
2011-08-02
Lipman, Bernard (Department: 1762)
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
07989552
ABSTRACT:
A curative composition suitable for fluoroelastomers comprising an anion of Formula III:wherein each Rf independently is R—CF2 or a perfluoroalkyl group having from 1 to 8 carbon atoms, wherein R is H, halo, alkyl, aryl, or cycloalkyl, having up to 8 carbon atoms and which also may be halogenated, fluorinated, or perfluorinated, and which may contain a heteroatom, wherein X is a linking group, and wherein n is a positive integer. 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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Adair Eric W.
Grootaert Werner M. A.
Guerra Miguel A.
3M Innovative Properties Company
Lipman Bernard
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