DISPERSE AZO DYES
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...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
29.03.2023
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Subjects | |
Online Access | Get full text |
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Summary: | 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. |
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Bibliography: | Application Number: EP20180722617 |