ES243518A1 - Procedure for the preparation of azocolorants containing heavy metal (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of azocolorants containing heavy metal (Machine-translation by Google Translate, not legally binding)
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
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 JR Geigy AGfiledCriticalJR Geigy AG
Priority to ES0243518ApriorityCriticalpatent/ES243518A1/en
Publication of ES243518A1publicationCriticalpatent/ES243518A1/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Process for the preparation of heavy metal-containing disazo dyes characterized in that dyes of general formula i are treated which do not contain acid dissociation groups which do not take part in the formation of complexes and in which they mean a radical aromatic of the benzene series or of the naphthalenesb the radical of an azocomponent coupled in a position adjacent to a hydroxyl group or aminox a group suitable for the formation of complexes or a transformable substituent in such a group and hydrogen or a substituent that favors the couplingz a sulfamide group optionally substituted in the nitrogen and n 1 or 2 with means that yield heavy metal preferably cobalt or chromium because it is treated a mixture of two or more metazoizable disazo dyes of which at least one corresponds to the formula icon medium yielding heavy metal preferably chromium or cobalt. (Machine-translation by Google Translate, not legally binding)
ES0243518A1958-08-081958-08-08Procedure for the preparation of azocolorants containing heavy metal (Machine-translation by Google Translate, not legally binding)
ExpiredES243518A1
(en)
A method for the preparation of 2-methyl-3-chloromethyl-6-chloro-7-sulfamil-3,4-dihydro-1,2,4-benzotiadiazine (Machine-translation by Google Translate, not legally binding)