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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Bibliographic Details
Main Authors NOWACK, PATRIC, LAUK, URS, DREIER, ROMEO
Format Patent
LanguageEnglish
Polish
Published 31.07.2023
Subjects
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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.
Bibliography:Application Number: PL20180722617T