Transparent conductive pigments

US7416688B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Gerhard Pfaff · Mainburg, DE
• Reinhold Rueger · Wittenberg, DE
• Otto Stahlecker · Darmstadt, DE
• Frank Ott · Holzminden, DE

Key dates

• Filing date: May 17, 2005
• Grant date: Aug 26, 2008
• Expiry date: Jul 4, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09C2220/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed are transparent conductive pigments of flake-form substrates coated with a conductive layer, where the number-weighted mean particle area F50 of the transparent conductive pigments is greater than or equal to 150 μm2, and processes for the production of the pigments, and the use thereof.