ES244551A1 - Procedure for the preparation of azocolorants containing cobalt (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of azocolorants containing cobalt (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.)
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Novartis AG
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JR Geigy AG
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Priority to ES0244551ApriorityCriticalpatent/ES244551A1/en
Publication of ES244551A1publicationCriticalpatent/ES244551A1/en
Process for the preparation of cobalt-containing azo dyes, characterized in that monoazo dyes which do not take part in the complex formation, free of acid-dissociated groups, are produced based on diazo benzene compounds which contain in the ortho position with respect to the diazo group a group suitable for the formation of metal complex and which in position para to it contain a substituent which is linked to the ring by an oxygen-containing sulfur atom, by coupling with aralkyl amides of acylacetic acid, with cobalt-yielding media in such amounts that combine less than one cobalt atom per molecule of dye. (Machine-translation by Google Translate, not legally binding)
ES0244551A1958-10-081958-10-08Procedure for the preparation of azocolorants containing cobalt (Machine-translation by Google Translate, not legally binding)
ExpiredES244551A1
(en)
Procedure for the preparation of metalizable monoazocolorants and their complex compounds of heavy metals (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of metalizable monoazocolorants and susu complex heavy matal compounds (Machine-translation by Google Translate, not legally binding)