Conjugated polymers

US9577197B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Amy Phillips · Winchester, GB
• Nicolas Blouin · Darmstadt, DE
• William Mitchell · Chandler's Ford, GB
• Steven Tierney · Southampton, GB

Key dates

• Filing date: Jun 21, 2012
• Grant date: Feb 21, 2017
• Expiry date: Jan 16, 2033

Classification

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

Abstract

The invention relates to novel polymers containing one or more 3,7-dialkyl-benzo[1,2-b:4,5-b′]dithiophene repeating units, methods for their preparation and monomers used therein, blends, mixtures and formulations containing them, the use of the polymers, blends, mixtures and formulations as semiconductor in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, and to OE and OPV devices comprising these polymers, blends, mixtures or formulations.