Fluorescent diketopyrrolopyrroles

Details Fluorescent diketopyrrolopyrroles Fluorescent diketopyrrolopyrroles

2011-08-30

2011-08-30

Shameem, Golam M (Department: 1622)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C548S452000, C428S690000, C428S917000, C252S301160

Reexamination Certificate

active

08008507

ABSTRACT:
The present invention relates to fluorescent diketopyrrolopyrroles of the formula (I), or (III), a process for their preparation and their use for the preparation of inks, colorants, pigmented plastics for coatings, non-impact-printing material, color filters, cosmetics, polymeric ink particles, toners, as fluorescent tracers, in color changing media, in solid dye lasers, EL lasers and electroluminescent devices. A luminescent device comprising a compound, or composition according to the present invention is high in the efficiency of electrical energy utilization and high in luminance.

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