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
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 AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES236362A1publicationCriticalpatent/ES236362A1/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
Process for the preparation of new dyes, characterized in that one mole of a trihalogenotriazine, preferably of 2,4,6-trichloro-l, 3,5-triazine, is condensed with one mole of an azo dye of formula ** (See formula) ** where they mean D the radical of a diazo component which contains at least one group of sulphonic acid and, optionally, azo groups, To the radical of an azocomponent that can be copulable in an alpha position with respect to a keto group, and n a positive integer, to which effect one of the symbols A and D contains an aryl radical at least bicyclic. (Machine-translation by Google Translate, not legally binding)
ES0236362A1956-07-051957-06-04Procedure for the preparation of new azocolorants (Machine-translation by Google Translate, not legally binding)
ExpiredES236362A1
(en)