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
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Filing date
Publication date
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Priority to ES0218915ApriorityCriticalpatent/ES218915A1/es
Publication of ES218915A1publicationCriticalpatent/ES218915A1/es
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Procedimiento para la preparación de colorantes cuba de la serie de las indantronas por fusión de una l-aminoantraquinona con reducidas cantidades de fenolatos alcalinos en presencia de un medio oxidante caracterizado porque se mantiene el contenido de agua de la masa fundida tan alto que ésta puede ser agitada.
ES0218915A1954-12-101954-12-10Un procedimiento para la preparacion de colorantes cuba de la serie de las indantronas
ExpiredES218915A1
(es)
PROCEDIMIENTO PARA TENIR ÉSTERES CELULoSICOS Y MATERIALES DE COMPORTAMIENTO TINToREO SIMILAR, Y PARA LA OBTENCIoN DE CORRESPONDIENTES PREPARACIONES TINToREAS