ES232809A1 - Procedure for the preparation of new azocolorants that contain chrome (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of new azocolorants that contain chrome (Machine-translation by Google Translate, not legally binding)
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
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba 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 AG, Ciba AGfiledCriticalCiba Geigy AG
Priority to ES232809ApriorityCriticalpatent/ES232809A1/en
Publication of ES232809A1publicationCriticalpatent/ES232809A1/en
Process for the preparation of new chromium-containing azo dyes characterized by treating monoazo dyes of the formula X a hydrogen atom or a radical that dissociates during metallization R the radical of an azocomponent free of acid groups of hydro-solvent power linked in position close to the group oxy with the azocuyo radical group present a substituent which has no hydro-solvent power with chromium yielding means in such a way that chromium-containing dyes are formed and which present less than one but at least half a chromium atom in complex bond per molecule of dye under dissociation of the radical xeventually present. (Machine-translation by Google Translate, not legally binding)
ES232809A1957-01-031957-01-03Procedure for the preparation of new azocolorants that contain chrome (Machine-translation by Google Translate, not legally binding)
ExpiredES232809A1
(en)