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:
Sep. 09, 1980
Filed:
Jun. 07, 1978
Applicant:
Inventors:
Norbert Grund, Ludwigshafen, DE;
Guenter Hansen, Ludwigshafen, DE;
Wolf-Dieter Kermer, Fussgoenheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
2602071 ; 260207 ;
Abstract
Brown to violet azo dyes of the general formula ##STR1## where X and Y are chlorine or bromine, R.sup.1 is hydrogen, methyl, ethyl, chlorine, methoxy or ethoxy, R.sup.2 is hydrogen, chlorine, bromine, methyl, ethyl, methoxy, ethoxy, C.sub.1-4 alkanoylamino, benzoylamino or alkoxycarbonylamino, where alkoxy is of 1 to 4 carbon atoms, and the radicals R.sup.3 are identical or different, unsubstituted or substituted aliphatic, cycloaliphatic or aromatic radicals. The dyes may be used for dyeing synthetic fibers, especially polyesters, and give very fast dyeings.