ES249861A1 - Procedure for the preparation of insolubles insolubles in water (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of insolubles insolubles in water (Machine-translation by Google Translate, not legally binding)
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Novartis AG
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Ciba Geigy AG
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Publication of ES249861A1publicationCriticalpatent/ES249861A1/en
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
C09B31/02—Disazo dyes
C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
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Chemical & Material Sciences
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Organic Chemistry
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Coloring
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
Process for the preparation of insoluble disazo dyes in water of formula ** (See formula) ** where they mean To a radical benzene, free of nitro groups, C a benzene radical having, in the para position with respect to the azo group, an oxy group, X a hydrogen atom, or an alkyl group, And a hydrogen atom, an alkyl, alkoxy, oxyalkoxy, or epoxyalkoxy group, characterized in that the diazo compound of an aminoazoic dye free of acid groups which produce water solubility, of formula ** (See formula) ** wherein A, X and Y have the indicated meaning, with an oxybenzene free of acid groups that produce water solubility that copulates in position para to the oxy group, and by which the components are selected so that the finished disazo dye contains at least less an oxyalkoxy or epoxyalkoxy group. (Machine-translation by Google Translate, not legally binding)
ES0249861A1958-06-061959-06-05Procedure for the preparation of insolubles insolubles in water (Machine-translation by Google Translate, not legally binding)
ExpiredES249861A1
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