Benzimidazo[1,2-a]benzimidazole derivatives for electronic applications

US10862051B2 · kind B2 · utility

Assignee

• UDC IRELAND LIMITED · IE

Inventors

• Thomas Schaefer · Liestal, CH
• Flavio Luiz Benedito · Ludwigshafen, DE
• Ute Heinemeyer · Neustadt, DE
• Nicolle Langer · Heppenheim, DE
• Heinz Wolleb · Fehren, CH
• Teresa Marina Figueira Duarte · Hong Kong, CN
• Soichi Watanabe · Mannheim, DE
• Christian Lennartz · Dublin, IE
• Gerhard Wagenblast · Wachenheim, DE
• Annemarie Wolleb · Fehren, CH
• Kristina Bardon · Waldshut-Tiengen, DE

Key dates

• Filing date: Feb 14, 2019
• Grant date: Dec 8, 2020
• Expiry date: Feb 14, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A compound of the general formula (I), a process for the production of the compound and its use in electronic devices, especially electroluminescent devices. Improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices are provided when the compound of formula I is used as host material for phosphorescent emitters in electroluminescent devices.