Patent · US Expired

Polythiophenes

US7053174B2 · kind B2 · utility

27Cited by

8References

12Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Stephan Kirchmeyer · Leverkusen, DE
Klaus Wussow · Netphen, DE
Friedrich Jonas · Aachen, DE
Andreas Elschner · Mülheim, DE

Key dates

Filing date	Nov 21, 2001
Grant date	May 30, 2006
Priority date	—
Expiry date	Nov 21, 2021

Classification

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

Abstract

Polythiophenes which are soluble or dispersible in anhydrous or low-water-content solvents can be prepared if they are prepared in anhydrous or low-water-content solvents and a phase-transfer catalyst is added during the reaction.

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