Patent ID: 6573024
Filing Date: 2003-06-03
Classification: C07C,G03F

Abstract:
An ammonium salt of an organic acid, having the following formula: wherein R is selected from the group consisting of unsubstituted or substituted cyclic alkyl, cyclic alkenyl, cyclic ester group, and cyclic ketone group having from 3 to 20 carbon atoms, R1, R2, and R3 are selected from the group consisting of H, unsubstituted or substituted linear or branched C1-C20 alkyl, C3-C10 cyclic alkyl, and unsubstituted or substituted linear or branched C1-C20 alkyl containing an N, O, or S atom, when R1, R2, and R3 are unsubstituted or substituted linear or branched C1-C20 alkyl, any two of R1, R2, R3 can link together to form a ring, and when R1, R2, and R3 are unsubstituted or substituted linear or branched C1-C20 alkyl containing an N, O, or S atom, any two of R1, R2, and R3 can link together to form a ring containing N, O, or S, n is an integer of from 1 to 4, R1, R2, and R3 are not hydrogen at the same time, and at least one of R, R1, R2 and R3 is substituted and the substituent is selected from the group consisting of carboxy, hydroxy, halogen, sulfonyl, ester group, ketone group, ether group, and sulfide group.