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:
Apr. 15, 1986
Filed:
May. 02, 1984
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Monoazo dyes of the formula ##STR1## in which K is a radical of the formula ##STR2## or of the formula ##STR3## in which R.sub.1 and R.sub.2 independently of one another is (sic) hydrogen, C.sub.1-4 -alkyl, which can be substituted by halogen, cyano, hydroxyl, carboxyl, sulfo, sulfato, C.sub.1-4 -alkoxy, C.sub.1-4 -alkoxycarbonyl, C.sub.1-4 -alkanoyloxy, phenyl, sulfophenyl and naphthyl, or cyclohexyl, or C.sub.1-4 -alkenyl, which can be substituted by halogen, or phenyl or naphthyl, or in which R.sub.1 and R.sub.2, together with the nitrogen atom connecting them and where relevant with the inclusion of a further hetero-atom, form a heterocyclic 5-membered or 6-membered ring, R.sub.3 is hydrogen, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, which can be substituted by hydroxyl and C.sub.1-4 -alkoxy, or C.sub.1-4 -alkanoylamino, or benzoylamino, which can be substituted in the benzene nucleus by methyl, ethyl, methoxy, ethoxy, chlorine, carboxyl and sulfo, or ureido, C.sub.1-4 -alkylsulfonylamino, or phenylsulfonylamino, which can be substituted in the benzene nucleus by methyl, ethyl, methoxy, ethoxy, chlorine, carboxyl and sulfo, or naphthylsulfonylamino, R.sub.4 is methyl or phenyl and R.sub.5 is hydrogen or C.sub.1-8 -alkyl, and in which, if K is the radical of the formula (2), R.sub.3 may not be hydrogen if R.sub.1 or R.sub.2 is benzyl, produce, on polyamide material, dyeings with good light fastness and wet fastness.