Fluorinated sulfonate surfactants

Details Fluorinated sulfonate surfactants Fluorinated sulfonate surfactants

2008-07-15

2008-07-15

Eyler, Yvonne (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfur containing

C568S018000, C568S300000, C568S579000

Reexamination Certificate

active

11890374

ABSTRACT:
A compound comprising Formula I, or a mixture thereof,whereinY is a bond or CmH2m−p(OA)pwherein m is 0 to 4, and p is 0 or 1,X′ is X or H,X is CH2CH2OA, CH(CH2OA)2, C(CH2OA)3, orX and X′ combine to form (CH2CH2)2NCH2CH2OA or (CH2CH2)2O, provided that when X and X′ combine to form (CH2CH2)2O then Y is CH2CH(OA)CH2,A is CF2CFHO—Rfor H,Rfis CnF2n+1wherein n is an integer of 1 to about 6,M is a cation having a charge equal to a, anda is a positive integer equal to 1 or 2,provided that at least one of X, X′, or Y contains A equal to CF2CFHO—Rf,and its use in lowering surface tension and imparting improved surface effects.

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