Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Novartis AG
Original Assignee
JR Geigy AG
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Publication date
Application filed by JR Geigy AGfiledCriticalJR Geigy AG
Priority claimed from CH5866458Aexternal-prioritypatent/CH389127A/en
Priority claimed from CH7154259Aexternal-prioritypatent/CH438524A/en
Publication of ES248868A1publicationCriticalpatent/ES248868A1/en
Procedure for the preparation of monoazo dyes characterized by coupling an o-diazobenzenesulfonic acid and an azo component of which one or both components contain an acylable amino group to form a monoazo dye and, before or after coupling, treat the components or the dye respectively with a derivative reactable of a carboxylic acid of the general formula IC1CH2-CO-NH-CH2-AX-COOH (I) in which A stands for an aryl radical and X the direct bond or an acyclic organic bridge under conditions such that the final product contains at least an acyl radical of the formula C1CH2-CO-NH-CH2-AX-CO linked to an amino group. (Machine-translation by Google Translate, not legally binding)
ES0248868A1958-04-231958-04-22Procedure for the preparation of monoazoic colors (Machine-translation by Google Translate, not legally binding)
ExpiredES248868A1
(en)
Procedure for the obtaining of insoluble azocolorants in water, intended for textile stamping (Machine-translation by Google Translate, not legally binding)