Patent ID: 8242312

Claim:
A compound of Formula 1 wherein R f is a C 2 to C 12 perfluoroalkyl optionally interrupted by one to four moieties each independently selected from the group consisting of —CH 2 —, —O—, —S—, —S(O)—, and —S(O) 2 —; each n is 1 to 6; m is 0 to 1, provided that m is less than or equal to n; X and Y are each independently O or NR, R is hydrogen or C 1 to C 6 alkyl; R 1 , and R 2 are each independently C 1 to C 6 alkyl, optionally containing one or more oxygen atoms and may form a ring selected from the group of piperidine, pyrrolidine, and morpholine; and R 3 is O − , (CH 2 ) p C(O)O − , (CH 2 ) p CH(OH)(CH 2 )SO 3 − , and (CH 2 ) q SO 3 − ; p is 1 to 4; and q is 2 to 4.