Patent ID: 8592520
Filing Date: 2013-11-26
Classification: C08G,C09D,H01G,Y02E

Abstract:
1. A method for producing an aqueous dispersion containing a complex of a poly(3,4-alkylenedioxythiophene) and a polyanion, comprising:-polymerizing a 3,4-alkylenedioxythiophene represented by formula (1): wherein R 1 and R 2 together form a C 1-4 -alkylene group which is optionally substituted, wherein the polymerization is performed in the presence of the polyanion by using peroxodisulfuric acid as an oxidizing agent in an aqueous solvent and wherein the pH during polymerization is 1.5 or less and wherein said aqueous solvent is water and said polyanion is a polystyrene sulfonic acid and wherein a dried film of the dispersion with film thickness of 0.33 μm has a surface resistivity of 150 ohm/square to 920 ohm/square.