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:
Feb. 10, 2009
Filed:
Sep. 09, 2004
Reinhold Schwalm, Wachenheim, DE;
Yvonne Heischkel, Mannheim, DE;
Andreas Fechtenkoetter, Ludwigshafen, DE;
Joachim Roesch, Ludwigshafen, DE;
Florian Doetz, Heidelberg, DE;
Reinhold Schwalm, Wachenheim, DE;
Yvonne Heischkel, Mannheim, DE;
Andreas Fechtenkoetter, Ludwigshafen, DE;
Joachim Roesch, Ludwigshafen, DE;
Florian Doetz, Heidelberg, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to fluoranthene derivatives of the general formula (I) in which R, R, Rand a are each defined according to the description, with the proviso that at least one of the Ror Rradicals is not hydrogen, to processes for their preparation and to the use of the fluoranthene derivatives as emitter molecules in organic light-emitting diodes (OLEDs), to a light-emitting layer comprising the inventive fluoranthene derivatives as emitter molecules, to an OLED comprising the inventive light-emitting layer and to devices comprising the inventive OLED.