Patent ID: 7497975

Claim:
An organic polymer composition comprising (I) a conductive polyaniline produced by a method for producing a conductive polyaniline dispersion comprising a stably dispersed conductive polyaniline in an organic solvent, said method comprising the step of oxidative polymerizing aniline or its derivative in the presence of at least one member selected from the group consisting of (i) sulfonic acids and (ii) water insoluble organic polymers having a protonic acid group, in a mixed layer composed of an aqueous layer and a water-insoluble organic solvent layer, wherein said polymerization takes place in the presence of an oxidizing agent, a molecular weight adjust agent selected from the group consisting of (1) aniline derivatives having a substituent X at the 4th position having the formula (I): In formula (I), X indicates an alkyl group, alkenyl group, alkoxy group, alkylthio group, aryl group, aryloxy group, alkylaryl group, arylalkyl group, alkoxyalkyl group, or halogen group, Y indicates a hydrogen atom, alkyl ,group, alkenyl group, alkoxy group, alkylthio group, aryl group, aryloxy group, alkylaryl group, arylalkyl group, alkoxyalkyl group, or halogen group, and n indicates an integer of 0 to 4, where when n is an integer of 2 to 4, Y may be the same or different, (2) thiol compounds selected from butyl mercaptan, octyl mercaptan, dodecyl mercaptan, hexadecyl mercaptan, tetradecyl mercaptan, 2,2,4,6,6-pentamethylheptane-4-methylenethiol, and (3) disulfide compounds selected from diethyl disulfide, dibutyl, disulfide, diphenyl disulfide, dibenzyl disulfide, dimethyl xanthogen disulfide, diethyl xanthogen disulfide, tetramethyl thiuram disulfide, tetraethyl thiuram disulfide and (4) α-methylstyrene dimers and, a phase transfer catalyst and (II) an organic polymer.