Conductive pigments

US6221144A · kind A · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Johann Dietz · Dietzenbach, DE
• Wilhelm Goebel · Groß-Bieberau, DE
• Ralf Glausch · Darmstadt, DE
• Reiner Vogt · Darmstadt, DE

Key dates

• Filing date: Mar 17, 1999
• Grant date: Apr 24, 2001
• Expiry date: Mar 17, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2996
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A pale electrically conductive pigment consisting of a substrate and an electrically conductive layer formed of phosphorus- and/or fluorine-doped tin oxide. There may be an interlayer disposed between the substrate and the conductive layer.