Patent · US Expired

Aqueous dispersion containing a complex of poly(3,4-dialkoxythiophene) and a polyanion and method for producing the same

US8592520B2 · kind B2 · utility

11Cited by

8References

7Claims

0Family size

Assignee

HERAEUS PRECIOUS METALS GMBH & CO. KG · DE

Inventors

Stephan Kirchmeyer · Leverkusen, DE
Klaus Wussow · Netphen, DE
Tetsuya Hosomi · Kasai, JP
Yasuo Chikusa · Himeji, JP

Key dates

Filing date	Jul 25, 2003
Grant date	Nov 26, 2013
Priority date	—
Expiry date	Apr 15, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/13
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An aqueous dispersion used for producing a conductive film is provided. The dispersion contains a complex of poly(3,4-dialkoxythiophene) and a polyanion, and is produced by polymerizing 3,4-dialkoxythiophene in an aqueous solvent in the presence of the polyanion by using peroxodisulfuric acid as an oxidizing agent or by using an oxidizing agent and an acid that is employed so as to lower pH of the reaction mixture.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.