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US RE46,018 E1Granted
Disperse azo dye mixtures
AssigneeDyStar Colours Distribution GmbH
InventorsManfred Hoppe, Kiyoshi Himeno, Ryouichi Sekioka
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Abstract
The present invention relates to dye mixtures comprising at least one compound of the formula (I) and at least one compound of the formula (II) where the substituents are each as defined in the description part, which are highly useful for dyeing and printing hydrophobic synthetic material.
Claims14
A mixture comprising 5 to 60% by weight of at least one compound of the formula (I)
- where R1 is hydrogen, C1-C4-alkyl, halogen, or C1-C4-alkoxy,
- n is 1 or 2, and the
- ring A is optionally substituted unsubstituted,
- and 20 to 95% by weight of at least one compound of the formula (II)
- where X is halogen, or CN,
- R2 and R5 are independently hydrogen or C1-C4-alkyl, and
- R3 and R4 are independently hydrogen, optionally substituted C1-C4-alkyl or C2-C4-alkenyl or unsubstituted C1-C4-alkyl,
- based on total amount of dye in the mixture.
5 more elements
Dependencies are inferred from the claim text.