Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Original Assignee
JR Geigy AG
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Filing date
Publication date
Application filed by JR Geigy AGfiledCriticalJR Geigy AG
Priority to ES0208507ApriorityCriticalpatent/ES208507A1/es
Publication of ES208507A1publicationCriticalpatent/ES208507A1/es
Procedimiento para la preparación de azocolorantes conteniendo cromo caracterizado porque se trata monoazocolorantes libres de grupos de ácido sulfónico de la fórmula general **(ver fórmula)** en la cual R significa hidrógeno halógeno o el grupo metilo con medios que ceden cromo bajo tales condiciones que 2 moléculas de monoazocolorante entran en enlace complejo con a lo menos un átomo de cromo.
ES0208507A1953-03-271953-03-27PROCEDIMIENTO PARA LA PREPARACIoN DE AZOCOLORANTES CONTENIENDO CROMO
ExpiredES208507A1
(es)