Carbazole based compound, coloring material, colored high...

Details Carbazole based compound, coloring material, colored high... Carbazole based compound, coloring material, colored high...

2006-01-03

2006-01-03

Powers, Fiona T. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C524S089000, C313S504000

Reexamination Certificate

active

06982330

ABSTRACT:
The present invention provides a new carbazole based compound represented by the following formula (1):wherein R is a substituent selected among a hydrogen atom, an alkyl group, an alkyl ether group, a sulfoamino group, a carbon cyclic group, a heterocyclic group and an aromatic cyclic group, “n” is integer, where at least one substituent other than the hydrogen atom are introduced and the each substituent may be the same or different.

REFERENCES:
patent: 02-285357 (1990-11-01), None
patent: 2003-335753 (2003-11-01), None

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