Phthalimidyl-azo dyes, process for their preparation and their use
AssigneeHuntsman International LLC
InventorsAntoine CLÉMENT, Alfons ARQUINT, Urs LAUK
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Abstract
The present invention relates to dyes of formula wherein R1 is 2-methoxyethyl, 2-ethoxyethyl or 2-(2-ethoxyethoxy)ethyl, R2 is C1-C8alkyl which is unsubstituted or substituted by one or more hydroxy groups, halogen atoms, C1-C4alkoxy groups, C2-C8alkoxyalkoxy groups, C1-C4alkyl-COO— groups or C1-C4alkyl-OCO— groups, R3 is methyl, hydroxy, halogen, —NH—SO2—R5 or —NH—CO—R6, wherein R5 is methyl or ethyl and R6 is methyl, ethyl, methoxymethyl or 2-methoxyethyl, and R4 is ethyl or n-propyl, and also to a process for their preparation and to their use in the dyeing or printing of semi-synthetic and, especially, synthetic hydrophobic fibre materials, more especially textile materials.
Claims12
A dye of formula
- wherein R1 is 2-methoxyethyl, 2-ethoxyethyl or 2-(2-ethoxyethoxy)ethyl,
- R2 is C1-C6alkyl which is unsubstituted or substituted by one or more hydroxy groups, halogen atoms, C1-C4alkoxy groups, C2-C8alkoxyalkoxy groups, C1-C4alkyl-COO— groups or C1-C4alkyl-OCO— groups,
- R3 is methyl, hydroxy, halogen, —NH—SO2—R5 or —NH—CO—R6, wherein R5 is methyl or ethyl and
- R6 is methyl, ethyl, methoxymethyl or 2-methoxyethyl, and
- R4 is ethyl or n-propyl.
Dependencies are inferred from the claim text.