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Novartis AG
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Ciba Geigy AG
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Publication of ES245227A1publicationCriticalpatent/ES245227A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for the manufacture of azo dyes by coupling a diazo amine with an azo component, which is characterized in that the components are chosen so that the dye molecule has at least one acid hydrosolubilizer group and a residue of the formula ** (See formula) ** in which formula R means a vinyl or beta-halogenetyl group. (Machine-translation by Google Translate, not legally binding)
ES0245227A1957-11-011958-10-31Procedure for the preparation of new azoic dyes (Machine-translation by Google Translate, not legally binding)
ExpiredES245227A1
(en)
Procedure for the preparation of azoic colorants belonging to the pirazolona and pirazol series (Machine-translation by Google Translate, not legally binding)