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.:
Date of Patent:
Jun. 01, 2021
Filed:
Jan. 13, 2017
Basf SE, Ludwigshafen am Rhein, DE;
Martin Koenemann, Mannheim, DE;
Gerhard Wagenblast, Wachenheim, DE;
Sorin Ivanovici, Heidelberg, DE;
Martina Mitgude, Gruenstadt, DE;
Abstract
The present invention relates to perylene bisimides with rigid 2,2'-biphenoxy bridges which are useful in a wide variety of applications and to novel to perylene bisimides with rigid 2,2′-biphenoxy bridges. The present invention also relates to the use of said compound(s) in color converters for improving the luminous efficacy of LEDs, to color converters and their use and to lighting devices comprising at least one LED or OLED and at least one color converter. The present invention also relates to a printing ink formulation for security printing comprising at least one perylene bisimide with rigid 2,2′-biphenoxy bridges and security documents.