Patent · US Active

4H-imidazo[1,2-a]imidazoles for electronic applications

US9502664B2 · kind B2 · utility

5Cited by

3References

15Claims

0Family size

Assignee

UDC IRELAND LIMITED · IE

Inventors

Thomas Schaefer · Liestal, CH
Ute Heinemeyer · Neustadt, DE
Nicolle Langer · Heppenheim, DE
Annemarie Wolleb · Fehren, CH
Christian Lennartz · Dublin, IE
Soichi Watanabe · Mannheim, DE
Teresa Marina Figueira Duarte · Hong Kong, CN
Gerhard Wagenblast · Wachenheim, DE
Didier Bauer · Kembs, FR
Ingo Muenster · Haßloch, DE
Christian Schildknecht · Schifferstadt, DE
Heinz Wolleb · Fehren, CH

Key dates

Filing date	Nov 7, 2012
Grant date	Nov 22, 2016
Priority date	—
Expiry date	Dec 3, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to compounds of formula (I), a process for their production and their use in electronic devices, especially electroluminescent devices. When used as electron transport and/or host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.