Patent ID: 7244698

Claim:
A surfactant composition comprising (a) about 25 to about 80 weight percent of a surfactant mixture comprising (a1) about 65 to about 99.4 weight percent of one or more quaternized amidoamine surfactants of formula I-IV, wherein R 1 and R 7 are independently selected from the group consisting of C 12 -C 30 alkyl, C 12 -C 30 alkenyl, C 12 -C 30 arylalkyl and C 12 -C 30 cycloalkylalkyl; R 2 and R 3 are independently selected at each occurrence from hydrogen and C 1 -C 4 alkyl; R 4 , R 5 , R 6 , R 8 and R 9 are independently selected from C 1 -C 4 alkyl, C 1 -C 4 alkoxyalkyl and C 1 -C 4 hydroxyalkyl; X and Y are independently selected from halide, alkyl sulfate and sulfate; p is an integer from 1 to about 10; m and n are independently integers of 1 to about 4; Z is —CH 2 (CH 2 ) q CH 2 SO 3 − or —CH 2 CH(OH)CH 2 SO 3 − ; and q is 1 or 2, (a2) about 0.5 to about 20 weight percent of one or more tertiary amine amides of formula V or VI, wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 7 , R 8 , p, m and n are as defined in step (a1) and (a3) about 0.1 to about 15 weight percent of one or more polymeric acids; and (b) about 20 to about 75 weight percent of a solvent system comprising (b1) about 0 to about 10 weight percent water, (b2) about 0 to about 45 weight percent of one or more alcohols and (b3) about 0 to about 45 weight percent of one or more glycols.