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:
Aug. 30, 2011
Filed:
Nov. 30, 2005
Applicants:
Hiroshi Yamamoto, Nishinomiya, JP;
Hidetaka Oka, Takarazuka, JP;
Mathias Düggeli, Basel, CH;
Inventors:
Assignee:
BASF SE Ludwigshafen, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 487/02 (2006.01); B32B 9/00 (2006.01); C09K 11/06 (2006.01);
U.S. Cl.
CPC ...
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.