Aqueous dispersion of intrinsically electroconductive polyalkoxythiophenes, a process for their preparation and their use
AssigneeHoechst Aktiengesellschaft
InventorsKarl-Heinz Kochem, Michael Schmidt
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Abstract
An aqueous dispersion is described which contains electroconductive, doped, polyalkoxythiophene which is soluble in aprotic organic solvents and is insoluble in water. The dispersion has a residual solvent content of less than or equal to 25% by weight, based on the total weight of the dispersion. A process for the preparation of this dispersion and the use of the dispersion for forming coatings on substrates are also described.
Claims16
An aqueous dispersion comprising electroconductive, polyalkoxythiophene which is soluble in aprotic organic solvents, said dispersion having a residual organic solvent content of at least about 5% by weight and less than or equal to 25% by weight, based on the total weight of the dispersion.
An aqueous dispersion comprising electroconductive, polyalkoxythiophene which is soluble in aprotic organic solvents, said dispersion having a residual organic solvent content of at least about 5% by weight and less than or equal to 25% by weight, a water content of 95 to 75% by weight, and a solids content of 2 to 15% by weight, based on the total weight of the dispersion.
Dependencies are inferred from the claim text.