Phthalimidyl azo pigments, method for producing same and utilisation thereof

Abstract

The present invention relates to dyes of formula wherein R is methyl or butyl, R1 is hydrogen, halogen, cyano or nitro, R2 is halogen or cyano, R3 is hydrogen, halogen, C1-C4alkyl or C1-C4alkoxy, R4 is hydrogen, C1-C4alkyl, halogen, CF3 or —NHCOR7 wherein R7 is C1-C4alkyl, R5 is C1-C6alkyl that is unsubstituted or substituted by hydroxy, cyano, acyloxy, or by phenoxy, x being a number from 0 to 4 and it being possible for the alkyl chain, from C2 upwards, optionally to be interrupted by one or more oxygen atoms, or is a radical of formula —CH2CH2—O—COR8, of formula or of formula and R6 is a radical of formula —CH2CH2—O—COR8 or of formula R8 and R9 each independently of the other being C1-C4alkyl and R10 being hydrogen or C1-C4alkyl, or, when R is methyl, R5 and R6 are each independently of the other C1-C4alkyl, with the proviso that when R is n-butyl and R5 and/or R6 is/are a radical of formula —CH2CH2—O—COR8, R4 may not be chlorine or acetylamino, and also to the process for the preparation thereof and to the use thereof in dyeing or printing fibre materials, especially polyester-containing textile materials.

Dependencies are inferred from the claim text.