Fluorescent diketopyrrolopyrroles

Details Fluorescent diketopyrrolopyrroles Fluorescent diketopyrrolopyrroles

2011-03-15

2011-03-15

Saeed, Kamal A (Department: 1626)

Compositions

Organic luminescent material containing compositions

C313S504000, C313S506000, C428S690000, C428S917000, C546S256000, C548S453000

Reexamination Certificate

active

07906039

ABSTRACT:
The present invention relates to fluorescent diketopyrrolopyrrole of the formula Ia 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 and electroluminescent devices. A luminescent device comprising a composition according to the present invention is high in the efficiency of electrical energy utilization and high in luminance.

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