Patent ID: 7863458

Claim:
An ionic liquid comprising a compound with the general formula: (anion)(cation)â€ƒâ€ƒFormula III wherein (anion) is independently selected as each occurrence from the group consisting of (Râ€²â€”Oâ€”SO 3 ) and (Râ€²â€”SO 3 ); Râ€² represents a group of general formula R 5 â€”(X(â€”CH 2 â€”) n ) m in which n represents a number from 1 to 12; m represents a number independent of n of from 1 to 400, from 50 to 300, or from 100 to 200; X represents â€”Oâ€”; and R 5 represents a linear or branched, saturated or unsaturated, aliphatic or alicyclic alkyl group having 1-36 carbon atoms non-functionalized; and (cation) is independently selected at each occurrence from the group consisting of: imidazolium cation of general formula wherein the imidazole nucleus may be substituted with at least one group selected from C 1-6 alkyl; pyridinium cation of general formula wherein the pyridine nucleus may be substituted with at least one group selected from C 1-6 alkyl; and pyrazolium cation of general formula wherein the residues R 1 is independently selected at each occurrence from the group consisting of: hydrogen; and linear or branched, saturated or unsaturated, aliphatic or alicyclic alkyl groups having from 1 to 20 carbon atoms; and the residue R is selected from linear or branched, saturated or unsaturated, aliphatic or alicyclic alkyl groups having 1 to 20, 5 to 15, or 8 to 12 carbon atoms when (cation) is imidazolium cation or pyrazolium cation, or linear or branched, saturated or unsaturated, aliphatic or alicyclic alkyl groups having 1 to 15, 5 to 15 or 8 to 12 carbon atoms when (cation) is pyridinium cation.