Importance

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Abstract

The present invention comprises a compound comprising Formula 1A, 1B, or 1C

description='In-line Formulae' end='lead'(R_a—O—CO—)₂X  Formula 1Adescription='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'R_a—O—CO—X—CO—O—(CH₂CH₂)R_f  Formula 1Bdescription='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'R_a—O—CO—X—CO—O—R  Formula 1Cdescription='In-line Formulae' end='tail'

wherein

Ra is the group Rf(CH2CF2)d—(CgH2g)—; RfOCF2CF2—(CgH2g)—; RfOCFHCF2O(CH2CH2O)v—(CgH2g)—; RfOCFHCF2O(CwH2w); RfOCF(CF3)CONH—(CgH2g); or Rf(CH2)h[(CF2CF2)i(CH2CH2)j]k;Rf is CcF(2c+1);d is 1 to about 3; g is 1 to 4; v is 1 to about 4; w is from about 3 to about 12; h is 1 to about 6; i, j, and k are each independently 1, 2, or 3, or a mixture thereof; provided that the total number of carbon atoms in group (vi) is from about 8 to about 22;X is a linear or branched difunctional alkyl sulfonate group —CeH(2e−1)(SO3M)-, wherein e is 2 or 3;M is a monovalent cation selected from the group consisting of hydrogen, ammonium, alkali metal, or alkaline earth metal;R is H or a linear or branched alkyl group CbH(2b+1)—; andb is from 1 to about 18.

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First Claim