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:
Jun. 07, 1994
Filed:
Mar. 29, 1993
Applicant:
Inventors:
Arno Lange, Bad Duerkheim, DE;
Gert Motzkus, Ludwigshafen, DE;
Helmut Degen, Frankenthal, DE;
Volker Walther, Weisenheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
8639 ; 8638 ; 8644 ; 8922 ;
Abstract
Dye mixtures containing from 50 to 95% by weight, of a 4-chloro-2-nitrophenylazohydroxypyridone dye and from 5 to 50% by weight of a chlorinated quinophthalone dye and/or from 5 to 20% by weight of an unsubstituted quinophthalone dye, dye formulations containing the novel dye mixtures and the use of dye mixtures for dyeing polyesters or printing them by the direct printing method.