Patent ID: 8685617

Claim:
A salt represented by the formula (I): wherein Q 1 and Q 2 independently each represent a fluorine atom or a C1-C6 perfluoroalkyl group, L 1 represents a C1-C17 divalent saturated hydrocarbon group in which one or more â€”CH 2 â€” can be replaced by â€”Oâ€” or â€”COâ€”, L 2 represents * COâ€”Oâ€”(CH 2 ) v â€” in which v represents an integer of 0 to 4 and * represents a binding position to ring W, ring W represents a C3-C36 aliphatic ring in which one or more â€”CH 2 â€” can be replaced by â€”Oâ€”, â€”Sâ€”, â€”COâ€” or â€”SO 2 â€” and in which one or more hydrogen atoms can be replaced by a hydroxyl group, a C1-C12 alkyl group, a C1-C12 alkoxy group, a C3-C12 alicyclic hydrocarbon group or a C6-C10 aromatic hydrocarbon group, s represents an integer of 0 to 3, t represents an integer of 0 to 2, R 1 independently represents in each occurrence a C1-C18 alicyclic hydrocarbon group in which one or more â€”CH 2 â€” can be replaced by â€”Oâ€” or â€”COâ€”, R 2 independently represents in each occurrence a hydrogen atom, a C1-C6 alkyl group, a C3-C12 cycloalkyl group, a C2-C7 acyl group, a C2-C7 alkoxycarbonyl group, a C2-C7 alkoxyalkyl group or a glycidyl group, and Z + represents an organic counter ion.