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 ES226491ApriorityCriticalpatent/ES226491A1/en
Publication of ES226491A1publicationCriticalpatent/ES226491A1/en
Process for the preparation of new monoazo dyes, characterized in that 1-aminoaryl compounds diazotados, free of hydro-solvent power groups, which contain in position 4 a tertiary amino group, are copied, with 1,3-diaminoaryl compounds free of hydro-solvent power groups, in which both nitrogen atoms have, together with at least one and at most three substituents, including at most one aromatic radical. (Machine-translation by Google Translate, not legally binding)
ES226491A1956-02-031956-02-03A procedure for the preparation of new monoazocolorants (Machine-translation by Google Translate, not legally binding)
ExpiredES226491A1
(en)