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Novartis AG
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JR Geigy AG
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Priority claimed from CH5866458Aexternal-prioritypatent/CH389127A/de
Priority claimed from CH7154259Aexternal-prioritypatent/CH438524A/de
Publication of ES248868A1publicationCriticalpatent/ES248868A1/es
Procedimiento para la preparación de colorantes monoazoicoscaracterizado pr el hecho de copular un ácidoo-diazobencensulfónico y un componente azoicode los cuales uno o ambos componentes contienen un grupo amino acilablepara formar un colorante monoazoico y antes o después de la copulación tratar los componenteso respectivamente el colorantecon un derivado reaccionable de un ácido carxílico de la fórmula general IC1CH2-CO-NH-CH2-A-X-COOH (I) en la cual significan A un radical arilo yX el enlace directo o un puente orgánico acíclicoen condiciones tales que el producto final contenga por lo menos un radical acilo de la fórmulaC1CH2-CO-NH-CH2-A-X-CO enlazado a un grupo amino.
ES0248868A1958-04-231958-04-22Procedimiento para la preparacion de colorantes monoazoicos
ExpiredES248868A1
(es)