Patent ID: 7964552

Claim:
A surfactant composition comprising a mixture of fluorosurfactant and a siloxane wherein: a) the mixture comprises no more than 21 weight percent of the fluorosurfactant and the fluorosurfactant is of the Formula 1 R f C n H 2n QC m H 2m (C 2 H 4 O) l R Formula 1 wherein n=1, 2, 4, 6; m=0 to about 12; l=5 to about 15; R f is C n F 2n+1 ; (CF 3 ) 2 CFOC 2 F 4 —; C 3 F 7 O[CF(CF 3 )CF 2 O] k CF 2 —; C 3 F 7 O[CF(CF 3 )CF 2 O] k CF 2 C(O)O—; or C 3 F 7 O[CF(CF 3 )CF 2 O] k CF 2 CONH—; k is 5 to 10; Q is arylene, O, S, SO, SO 2 ; R is H, CH 3 , C 2 H 5 , or C(O)CH 3 ; and b) the siloxane is of Formulae 2A, 2B, 2C or 3 (R 2 ) 3 SiO[Si(R 2 ) 2 O] y [Si(R 2 )(R 1 )O] x [Si(R 2 ) 2 O] z Si(R 2 ) 3 Formula 2A (R 2 ) 3 SiO[Si(R 2 ) 2 O] x Si(R 2 ) 2 R 1 Formula 2B R 1 (R 2 ) 2 SiO[Si(R 2 ) 2 O] x Si(R 2 ) 2 R 1 Formula 2C wherein each R 2 is independently H, alkyl, or aryl; each R 1 is a polyoxyalkylene group having the Formula 4 as follows: —C n R 4 p H 2n−p QC m R 5 p H 2m−p OZR 3 Formula 4 wherein each R 4 and R 5 is independently H, alkyl, or aryl; Q is C n HR 4 , aryl, CH 2 CH(OR 4 ), CH 2 (CH 2 OR 4 ), S, O, SO, SO 2 , SO 2 NR 4 , OC(O), OC(NR 4 ), NHC(X)NH, or OC(X)NH or triazole; Z is [C 2 H 4 O] a and [C 3 H 6 O] b in block or random order; X is O or S; m and n are each independently an integer of 2 to 8; a is an integer of 0 to about 30; b is an integer of 0 to about 20; provided that a+b is from 1 to about 50; each R 3 is H, acyl, or a linear or branched alkyl or aryl group having 1 to about 20 carbon atoms; w is an integer of 1 to 3; x is an integer of from 1 to about 20; y is an integer of from 0 to about 20; and z is an integer of from 0 to about 10; provided that no more than 5% by weight of any other ingredient is present.