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Novartis AG
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Ciba Geigy AG
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Publication of ES172911A1publicationCriticalpatent/ES172911A1/es
Procedimiento para la preparación de colorantes disazoicos que contienen cobre caracterizado porque se trata colorantes disazoicos de *(ver fórmula)* en la cual significan R el radical de un ácido dioxinaftalina-mono-sulfónico y R1 el radical de un ácido oxi- o dioxinaftalinasulfónico con medios que ceden cobre.
ES0172911A1945-03-221946-03-15UN PROCEDIMIENTO PARA LA PREPARACIoN DE COLORANTES DISAZOICOS QUE CONTIENEN COBRE
ExpiredES172911A1
(es)