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:
Jul. 08, 1997
Filed:
Jun. 22, 1995
Applicant:
Inventors:
Assignee:
Ciba-Geigy Corporation, Tarrytown, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01D / ;
U.S. Cl.
CPC ...
548453 ;
Abstract
Diketopyrrolopyrrole of the formula ##STR1## in its .beta.-modification and in its .gamma.-modification. Both the .beta.-modification and the .gamma.-modification are suitable as pigments for coloring high-molecular weight organic material. In comparison to the .alpha.-modification, the .beta.-modification shows a shift in shade towards yellowish-red. The .gamma.-modification gives brilliant orange colorations.