Conductive coatings

US5766515A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Friedrich Jonas · Aachen, DE
• Alexander Karbach · Krefeld, DE
• Bavo Muys · Mortsel, BE
• Etienne Van Thillo · Essen, BE
• Rolf Wehrmann · Krefeld, DE
• Andreas Elschner · Mülheim, DE
• Ralf Dujardin · Willich, DE

Key dates

• Filing date: May 14, 1997
• Grant date: Jun 16, 1998
• Expiry date: May 14, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/917
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Mixtures of PA1 A) neutral polythiophenes of formula (I), ##STR1## wherein R.sub.1 and R.sub.2 separately from one another represent hydrogen or a C.sub.1-4 alkyl group or together form an optionally substituted C.sub.1-4 alkylene radical, preferably a methylene radical optionally substituted by alkyl groups, an ethylene-1,2 radical optionally substituted by C.sub.1-12 alkyl or phenyl groups, or a cyclohexylene-1,2 radical, and PA1 B) organic compounds containing dihydroxy or polyhydroxy and/or carboxyl groups or amide groups or lactam groups, as well as transparent, electrically conducting coatings made therefrom and electroluminescent systems containing a conductive layer produced from the abovementioned mixtures as the electrode.