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:
Sep. 16, 1997
Filed:
Dec. 20, 1995
Applicant:
Inventors:
Urs Lehmann, Basel, CH;
Marcel Frick, Reinach, CH;
Assignee:
Ciba-Geigy Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P / ; C09B / ;
U.S. Cl.
CPC ...
8641 ; 8643 ; 8917 ; 8924 ; 8685 ;
Abstract
Dye mixtures which comprise at least one 1:2 chromium complex dye of the formula (1) ##STR1## together with at least one 1:2 chromium or 1:2 cobalt complex dye of two identical or two different azo compounds from the group consisting of compounds of the formulae (2), (3) and (4) or together with at least one 1:2 cobalt complex dye of the formazan compound of the formula (5) or together with at least one anthraquinone dye of the formula (6). The dyes of formulae (1) are defined herein.