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Novartis AG
Original Assignee
Ciba Geigy AG
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Publication date
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Publication of ES236302A1publicationCriticalpatent/ES236302A1/en
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Process for the preparation of monoazo dyes, characterized in that it couples copolymers having a 2,4-dihalogen-1, 3, 5 triazine radical linked by a nitrogen bridge, with ketomethylene compound which are suitable for coupling thanks to the presence of a keto group enolizable or enolized, for this purpose the starting materials are selected in such a way that at least two acid groups of hydro-solvent power are present in the formed azo-dye. (Machine-translation by Google Translate, not legally binding)
ES0236302A1956-06-291957-06-28Procedure for the preparation of new monoazocolorants (Machine-translation by Google Translate, not legally binding)
ExpiredES236302A1
(en)
Procedure for preparing a mixture of bis- (o-hydroxypenylacetic) acid of etilendiamine and its monoamide. (Machine-translation by Google Translate, not legally binding)
Procedimine for the obtaining of derivatives of the acid p- [cumarinyl- (3)] - phenyl carbamine (Machine-translation by Google Translate, not legally binding)