Patent ID: 7785493

Claim:
A dispersion comprising: at least one electrically conductive polymer selected from the group consisting of polyalkylenedioxythiophenes containing recurring units of the general formula (I) wherein A represents an optionally substituted C 1 -C 5 -alkylene radical, R represents a linear or branched, optionally substituted C 1 -C 18 -alkyl radical, an optionally substituted C 5 -C 12 -cycloalkyl radical, an optionally substituted C 6 -C 14 -aryl radical, an optionally substituted C 7 -C 18 -aralkyl radical, an optionally substituted C 1 -C 4 -hydroxyalkyl radical or a hydroxyl radical, x represents an integer from 0 to 8 and in the case where several radicals R are bonded to A, these can be identical or different, at least one counter-ion selected from the group consisting of anions of polymeric carboxylic acids or sulfonic acids or monomeric C 1 -C 20 -alkanesulfonic acids, aliphatic C 1 -C 20 -perfluorosulfonic acids, aliphatic C 1 -C 20 -carboxylic acids, aliphatic C 1 -C 20 -perfluorocarboxylic acids, aromatic C 1 -C 20 -sulfonic acids optionally substituted by C 1 -C 20 -alkyl groups, optionally substituted C 1 -C 20 -cycloalkanesulfonic acids or tetrafluoroborates, hexafluorophosphates, perchlorates, hexafluoroantimonates, hexafluoroarsenates or hexachloroantimonates, at least one base, and at least one dispersing agent, characterized in that it comprises at least one condensate of melamine with at least one carbonyl compound, wherein the total amount of the at least one electrically conductive polymer and at least one counter-ion in the dispersion is between 0.05 and 10 wt. %, based on the total weight of the dispersion and wherein the total content of the at least one condensate of melamine and at least one carbonyl compound is 1 to 30 wt. % based on the weight of the dispersion.