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
Ciba Geigy AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ciba Geigy AGfiledCriticalCiba Geigy AG
Publication of ES236302A1publicationCriticalpatent/ES236302A1/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications
(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)