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. 25, 1979
Filed:
May. 13, 1977
Applicant:
Inventors:
Hansrudolf Schwander, Riehen, CH;
Christian Zickendraht, Binningen, CH;
Assignee:
Ciba-Geigy Aktiengesellschaft, Basel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
544345 ;
Abstract
Dyestuffs of the formula (I) ##STR1## in which R represents alkyl, alkenyl, cycloalkyl, aralkyl, aryl or, preferably, hydrogen, M represents hydrogen or a cation, Y represents a free or modified carboxyl group, Z represents a non-ionic substituent and n represents 0, 1 or 2 and A, B and D can carry further non-ionic substituents are disclosed; the sulfo-free dyestuffs are suitable for dyeing semi-synthetic and synthetic fibers, especially polyamides and polyesters, and the sulfo-substituted dyestuffs are suitable for dyeing, for example, wool and synthetic polyamides.