Disperse dyes, their preparation and use
AssigneeDyStar Colours Deutschland GmbH
InventorStefan Neubauer
Life of this patent
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Abstract
The invention provides for a dye of the formula (I) where D is the residue of a diazo component; R1 is hydrogen, (C1-C6)-alkyl, (C1-C4)-alkoxy, hydroxyl, halogen, —NHCHO, —NHCO(C1-C6)-alkyl or —NHSO2 (C1-C6)-alkyl; R2 is hydrogen, (C1-C6)-alkyl, (C1-C4)-alkoxy or halogen; R3 is hydrogen, (C1-C6)-alkyl, substituted (C1-C6)-alkyl, (C3-C4)-alkenyl or substituted (C3-C4)-alkenyl or R2 and R3 combine to form the radical —C*H(CH3)CH2C(CH3)2—, where the carbon atom marked * is attached to the phenyl nucleus; R4 is hydrogen or (C1-C6)-alkyl; R5 is hydrogen or (C1-C6)-alkyl; R6 is hydrogen or (C1-C6)-alkyl; X is phenyl, thiophenyl, sulfonylphenyl or phenoxy; n is 0, 1, or 2; and m is 0 or 1. The invention is also related to the process of using the dye and the process of preparing the dye.
Claims8
A dye of the general formula (I)
- where
- D is the residue of a diazo component;
- R1 is hydrogen, (C1-C6)-alkyl, (C1-C4)-alkoxy, hydroxyl, halogen, —NHCHO, —NHCO(C1-C6)-alkyl or —NHSO2(C1-C6)-alkyl;
- R2 is hydrogen, (C1-C6)-alkyl, (C1-C4)-alkoxy or halogen;
- R3 is hydrogen, (C1-C6)-alkyl, substituted (C1-C6)-alkyl, (C3-C4)-alkenyl or substituted (C3-C4)-alkenyl or R2 and R3 combine to form the radical —C*H(CH3)CH2C(CH3)2—, where the carbon atom marked * is attached to the phenyl nucleus;
- R4 is hydrogen or (C1-C6)-alkyl;
- R5 is hydrogen or (C1-C6)-alkyl;
- R6 is hydrogen or (C1-C6)-alkyl;
- X is phenyl, thiophenyl, sulfonylphenyl or phenoxy;
- n is 0, 1, or 2;
- and
- m is 0 or 1.
Dependencies are inferred from the claim text.