Colorantes azo dispersados

• Main Authors: DREIER, Romeo, LAUK, Urs, NOWACK, Patric
• Format: Patent
• Language: Spanish
• Published: 15.06.2023
• Subjects: 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

La presente invención se refiere a colorantes azoicos dispersos de fórmula (1), en la que R1 es bromo, nitro, ciano, metilo, metoxi o trifluorometilo; R2 es hidrógeno, cloro, bromo o trifluorometilo; R3 es hidrógeno, cloro, bromo, metoxi, trifluorometilo, nitro o ciano; y R4 es metilo, etilo, n-propilo, 2-metoxietilo, metoxicarbonilmetilo o 2-metoxicarboniletilo; con la condición de que R1 sea ciano en el caso de que R2 denote cloro o bromo, a un proceso para la preparación de tales tintes y a su uso en el teñido o estampado de materiales de fibra hidrófobos semisintéticos y, especialmente, sintéticos, más especialmente materiales textiles . (Traducción automática con Google Translate, sin valor legal) The present invention relates to disperse azo dyes of formulawhereinR1 is bromo, nitro, cyano, methyl, methoxy or trifluoromethyl;R2 is hydrogen, chloro, bromo or trifluoromethyl;R3 is hydrogen, chloro, bromo, methoxy, trifluoromethyl, nitro or cyano; andR4 is methyl, ethyl, n-propyl, 2-methoxyethyl, methoxycarbonylmethyl or 2-methoxycarbonylethyl;with the proviso that R1 is cyano in case R2 denotes chloro or bromo,to a process for the preparation of such dyes and to their use in the dyeing or printing of semi-synthetic and, especially, synthetic hydrophobic fibre materials, more especially textile materials.