ES296460A1 - Procedure for the preparation of azoic colors without metal and of difficult solubility in water (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of azoic colors without metal and of difficult solubility in water (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.)
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Novartis AG
Original Assignee
JR Geigy AG
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Publication date
Priority claimed from CH190463Aexternal-prioritypatent/CH427090A/en
Application filed by JR Geigy AGfiledCriticalJR Geigy AG
Publication of ES296460A1publicationCriticalpatent/ES296460A1/en
Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography
(AREA)
Heat Sensitive Colour Forming Recording
(AREA)
Abstract
Process for the preparation of azo dyes without metal and difficult to solubilize in water, characterized by copying an aromatic diazonic compound of the carbocyclic or heterocyclic series with a compound of the formula ** (See formula) ** wherein R1 and R2 each mean an inert monovalent substituent, and R3 means a hydrocarbon radical, a carboxyalkyl ester group or a carboxyamido group, to form a dye of the formula II ** (See formula) ** where A means the radical of the carbocyclic or heterocyclic aromatic diazono compound, and R1, R2 and R3 have the meaning set forth in formula I, and by choosing the components so that the dye does not contain any water-solubilizing group that dissociates in water with acidity. (Machine-translation by Google Translate, not legally binding)
ES296460A1963-02-151964-02-14Procedure for the preparation of azoic colors without metal and of difficult solubility in water (Machine-translation by Google Translate, not legally binding)
ExpiredES296460A1
(en)
Procedure for the preparation of azoic colors without metal and of difficult solubility in water (Machine-translation by Google Translate, not legally binding)
Procedure for dying and printing polyesteric fibers polycarboxylic aromatic acids and polyvalent alcohols. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of azoic colors without metal and of difficult solubility in water (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of dispersible azoic colorants, difficultly soluble in water. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of azoic colorants exempt from metal, difficultly soluble in water (Machine-translation by Google Translate, not legally binding)