Patent · US Expired

Polythiophenes having alkyleneoxythia thiophene units in electrolyte capacitors

US7341801B2 · kind B2 · utility

74Cited by

5References

22Claims

0Family size

Assignee

H.C. STARCK INC. · US

Inventors

Knud Reuter · Krefeld, DE
Udo Merker
Friedrich Jonas · Aachen, DE

Key dates

Filing date	Jul 12, 2004
Grant date	Mar 11, 2008
Priority date	—
Expiry date	Jun 9, 2025

Classification

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

Abstract

Electrolyte capacitors containing certain polythiophenes are described. More particularly, the polythiophenes have backbones containing repeating units of the following general formula (I) and/or repeating units of the following general formula (II),wherein A is, for example, a C1-C5-alkylene radical, R is, for example, a C1-C18-alkyl radical, and x is an integer from 0 to 8. Also described are dispersions comprising such polythiophenes, and the use of such polythiophenes or dispersions thereof for producing conductive layers.

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