DISPERSE DYES

Novel azo dyes having the general formula (I): (I) where A is the residue of a diazotizable base or a coupling base incorporating a N-dialkylamine group, X is =NH or =O, R, and R2 are hydrogen, methyl, oxymethyl or chlorine and R3 and R4 are methyl or ethyl, are prepared from novel intermediate cyan...

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Bibliographische Detailangaben
Hauptverfasser:	PAFFONI, CAMILLO, BATTISTI, RUGGERO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMISTRY DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES DYES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAKES LAUNDERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS POLISHES TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	Novel azo dyes having the general formula (I): (I) where A is the residue of a diazotizable base or a coupling base incorporating a N-dialkylamine group, X is =NH or =O, R, and R2 are hydrogen, methyl, oxymethyl or chlorine and R3 and R4 are methyl or ethyl, are prepared from novel intermediate cyanacetanilide compounds by reaction with the corresponding p-N-alkylamino-salicyl-aldehyde. They are useful especially for dyeing synthetic hydrophobic fibres such as polyesters.