Patent ID: 7309456
Filing Date: 2007-12-18
Classification: H01L

Abstract:
1. A semiconductive composition, for electrophotographic equipment comprising: a solvent-soluble electrically conductive polymer obtained by imparting electrical conductivity by means of a dopant to a pi-electron conjugated polymer which is at least one selected from the group consisting of aniline, pyrrole, thiophene and their derivatives, and comprises an alkyl substituent group or an alkoxy substituent group each having 1 to 4 carbons; and a non-conjugated polymer, wherein the dopant comprises an alkylbenzenesulforxic acid or its salt having 2 or more alkyl substituent groups, at least one of the alkyl substituent groups having 4 to 18 carbons and a total carbon number of the alkyl substituent groups being 10 to 37, wherein the non-conjugated polymer has a sulfonic acid or its salt.