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:
Jan. 20, 1976
Filed:
Nov. 20, 1972
Applicant:
Inventors:
Richard Peter, Basel, CH;
Hans-Joerg Angliker, Basel, CH;
Assignee:
Ciba-Geigy AG, Basel, CH;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
260156 ; 260155 ; 260157 ; 260158 ; 260162 ;
Abstract
An azo dyestuff that contains at least one residue of a styryl dyestuff. The dyestuffs dye synthetic fibers in bright colours the dyestuffs are of the formula ##EQU1## wherein D is a heterocyclic diazo component, B is a coupling component, A is a para-phenylene and R.sub.1 and R.sub.2 are alkyl that may be substituted.