Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-10-31
2010-02-16
Garrett, Dawn (Department: 1794)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C544S338000, C544S339000, C544S342000, C544S343000
Reexamination Certificate
active
07662487
ABSTRACT:
The invention aims at providing a novel azaaromatic compound having an azafluoranthene skeleton which is useful as the constituent of organic EL devices and at realizing a long lifetime, high-efficiency and practical organic EL device by using the compound in at least one of the organic compound layers. The invention provides azaaromatic compounds having azafluoranthene skeletons as represented by the general formula (1): wherein R1to R12are each independently hydrogen, substituted or unsubstituted alkyl having 1 to 30 carbon atoms, substituted or unsubstituted alkoxy having 1 to 30 carbon atoms, substituted or unsubstituted aryl having 6 to 40 carbon atoms, trialkylsilyl (wherein each alkyl has 1 to 20 carbon atoms and may be substituted), aryloxy (wherein the aryl has 6 to 40 carbon atoms and may be substituted), halogen atom, or cyano group, with the proviso that at least two of R1to R12are each cyano group, trifluoromethyl group, or fluorine atom and adjacent two of R1to R12may be linked together to form a ring structure.
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Machine-generated translation for JP 2003-212875 published Jul. 2003.
Machine-generated translation for JP 2005-068367 published Mar. 2005.
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Garrett Dawn
Idemitsu Kosan Co. Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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