Process for the production of polyethylene dioxythiophenes

US7951901B2 · kind B2 · utility

Assignee

• H.C. STARCK INC. · US

Inventors

• Knud Reuter · Krefeld, DE
• Stephan Kirchmeyer · Leverkusen, DE
• Friedrich Jonas · Aachen, DE

Key dates

• Filing date: Jun 29, 2006
• Grant date: May 31, 2011
• Expiry date: Feb 6, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L65/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The production of electrically conductive polythiophenes by reaction of 2,5-dihalogen-3,4-ethylene dioxythiophenes with 3,4-ethylene dioxythiophenes in a solvent or liquid phase is provided. These polythiophenes can be used as a plastic or lacquer additive to provide antistatic properties.