Patent ID: 6866797

Claim:
A composition, comprising: a quaternary ammonium compound of formula (I) and a phosphate ester of formula (II); wherein R 1 , R 2 , R 3 , R 4 are independently a hydrocarbyl group; X − is selected from the group consisting of halide and sulfate; and R 5 , R 6 , and R 7 are independently selected from the group consisting of hydrogen, a hydrocarbyl group, and a polyoxyalkylated alcohol; and further comprising a thiocarbonyl compound of formula (III) wherein R 8 is selected from the group consisting of metal ion, ammonium ion, hydrocarbyl, and heterohydrocarbyl; X and Y are independently selected from the group consisting of oxygen and sulfur such that at least one of X and Y is sulfur; Z is selected from the group consisting of OR 9 and NR 10 R 11 ; and R 9 , R 10 , and R 11 are independently selected from the group consisting of hydrocarbyl and heterohydrocarbyl.