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:
Mar. 27, 1979
Filed:
May. 17, 1977
Applicant:
Inventors:
Hansrudolf Schwander, Riehen, CH;
Christian Zickendraht, Binningen, CH;
Assignee:
Ciba-Geigy AG, Basel, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
26032627 ; 2603269 ; 2603 / ; 2603 / ; 26032662 ; 2603 / ; 2603 / ; 2603 / ; 2603 / ; 260305 ; 8 542 ; 8176 ; 2603 / ; 2603 / ; 544142 ; 544 58 ; 544372 ; 546200 ; 546272 ; 548306 ;
Abstract
A dyestuff of the formula ##STR1## in which R represents alkyl, alkenyl, cycloalkyl, aralkyl, aryl or, preferably, hydrogen, M represents hydrogen or a cation, T represents the radical of a thiophene and A and B can carry non-ionic substituents and/or a --COOH group. The new dyestuffs give fast and brilliant yellow shades on polyester fibers.