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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11744152 B1

PDFFull Text
Date of Patent:
Aug. 29, 2023

Filed:

Dec. 01, 2020

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

Applicant:

Udc Ireland Limited, Dublin, IE;

Inventors:

Thomas Schaefer, Liestal, CH;

Flavio Luiz Benedito, Ludwigshafen, DE;

Ute Heinemeyer, Neustadt, DE;

Nicolle Langer, Lampertheim, DE;

Heinz Wolleb, Fehren, CH;

Teresa Marina Figueira Duarte, Hong Kong, CN;

Soichi Watanabe, Mannheim, DE;

Christian Lennartz, Schifferstadt, DE;

Gerhard Wagenblast, Wachenheim, DE;

Annemarie Wolleb, Fahren, CH;

Kristina Bardon, Waldshut, DE;

Assignee:

UDC IRELAND LIMITED, Dublin, IE;

Attorney:

Riverside Law LLP

Primary Examiner:

Laura L Stockton

Int. Cl.
CPC ...
C07D 487/04 (2006.01); C07D 519/00 (2006.01); H10K 85/60 (2023.01); C09K 11/06 (2006.01); H05B 33/00 (2006.01); H10K 85/30 (2023.01); H10K 99/00 (2023.01); G03G 5/06 (2006.01); C09K 11/02 (2006.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/18 (2023.01); H10K 101/10 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07D 487/04 (2013.01); C07D 519/00 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); G03G 5/0661 (2013.01); H05B 33/00 (2013.01); H10K 85/342 (2023.02); H10K 85/6574 (2023.02); H10K 99/00 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1074 (2013.01); C09K 2211/185 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/18 (2023.02); H10K 85/30 (2023.02); H10K 85/622 (2023.02); H10K 2101/10 (2023.02); Y02E 10/549 (2013.01); Y02P 70/50 (2015.11);
Abstract

A compound of the general formula 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.

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