ES244605A1 - Procedure for the preparation of new compounds of metal complex of monoazoic colors (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of new compounds of metal complex of monoazoic colors (Machine-translation by Google Translate, not legally binding)
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Novartis AG
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Ciba Geigy AG
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Priority to ES0244605ApriorityCriticalpatent/ES244605A1/en
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Process for the preparation of heavy metal-containing azo dyes, characterized in that complex chromium or cobalt 1: 2 compounds of monoazo dyes having at least two sulphonic acid groups and corresponding to the formula are prepared ** (See formula) ** where they mean X a chlorine atom, or a nitro group, R is a benzene radical which is linked to the azo group in the ortho position with respect to the hydroxyl group, and R1 is a benzene radical, preferably containing a sulphonic acid group having an amino group bearing a halogenated 1,3,5-triazine radical. (Machine-translation by Google Translate, not legally binding)
ES0244605A1958-10-101958-10-10Procedure for the preparation of new compounds of metal complex of monoazoic colors (Machine-translation by Google Translate, not legally binding)
ExpiredES244605A1
(en)