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:
Dec. 29, 1992
Filed:
Aug. 12, 1991
Applicant:
Inventors:
Hirotsugu Tsumura, Kishiwda, JP;
Ulrich Buhler, Alzenau, DE;
Reinhard Kuhn, Frankfurt, DE;
Margareta Boos, Hattersheim, DE;
Assignee:
Cassella Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; D06P / ;
U.S. Cl.
CPC ...
8639 ; 8524 ; 8527 ; 8532 ; 8533 ; 8662 ; 8696 ; 8921 ; 8922 ; 8924 ;
Abstract
The invention relates to mixtures of monoazo dyes, which are characterized in that they consist of one or more dyes of the general formula I ##STR1## and one or more dyes of the general formula II ##STR2## where R.sup.1 is methyl, ethyl, n-propyl or i-propyl,