Conjugated polymers containing dihydrophenanthrene units and use thereof

US7723455B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Heinrich Becker · Königstein, DE
• Esther Breuning · Ober-Ramstadt, DE
• Arne Büsing · Frankfurt, DE
• Aurélie Ludemann · Frankfurt, DE
• Corinna Leske · Frankfurt, DE
• Hubert Spreitzer · Viernheim, DE
• Silke Türk · Montabaur, DE

Key dates

• Filing date: Aug 12, 2004
• Grant date: May 25, 2010
• Expiry date: Jan 25, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to conjugated polymers containing novel structural units according to formula (1). The inventive materials are characterized by increased efficiency and a longer service life when used in polymer organic light emitting diodes.