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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Original Assignee
Ciba Geigy AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Priority to ES0240711ApriorityCriticalpatent/ES240711A1/en
Publication of ES240711A1publicationCriticalpatent/ES240711A1/en
Process for the preparation of azo dyes, characterized in that it is coupled or acylated, azol dyes containing a single halogenated acylamino group and corresponding as free acid to the formula ** (See formula) ** where they mean D the radical of a diazo component containing at least one acid hydro-solvent group, for example a carboxylic acid and/or sulfonic acid group, and optionally an azo group, X one hydrogen atom, and the other * X an aliphatic, beta-halogenated acyl radical, linked by an amino group. (Machine-translation by Google Translate, not legally binding)
ES0240711A1958-03-131958-03-13Procedure for the preparation of new azocolorants (Machine-translation by Google Translate, not legally binding)
ExpiredES240711A1
(en)