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:
Oct. 17, 2017
Filed:
Aug. 04, 2014
Basf SE, Ludwigshafen, DE;
Martin Könemann, Mannheim, DE;
Gabriele Mattern, Schifferstadt, DE;
Gerhard Wagenblast, Wachenheim, DE;
Sorin Ivanovici, Heidelberg, DE;
Robert Send, Karlsruhe, DE;
Other;
Abstract
The present invention relates to cyanated naphthalenebenzimidazole compounds of the formula (I) and mixtures thereof, in which R, R, R, R, R, R, R, R, Rand Rare each independently hydrogen, cyano or aryl which is unsubstituted or has one or more identical or different substituents R, where Ris as defined in the claims and in the description, with the proviso that the compounds of the formula I comprise at least one cyano group. The invention further relates to color converters comprising at least one polymer as a matrix material and at least one cyanated naphthalenebenzimidazole compound or mixtures thereof as a fluorescent dye, to the use of the color converters and to lighting devices comprising at least one LED and at least one color converter.