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US 7,390,889 B1Granted
Trisazo reactive dyestuff compound
AssigneeEverlight USA, Inc.
InventorsWen-Jang Chen, Chen-Lung Kao
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Abstract
The present invention relates to a novel trisazo reactive dyestuff compound of the following formula (I): wherein, R, A, B, D, and m are defined the same as in the specification. The trisazo reactive dyestuff compound of the present invention exhibits the properties of good solubility, good alkali-resistant solubility, and good wash-off, while dyeing cellulose fibers.
Claims23
A trisazo reactive dyestuff compound of the following formula (I),
- wherein
- R is —OH, —NR2R3,
- or
- wherein R2 and R3 each independently are selected from the group consisting of hydrogen, C1-4 alkyl unsubstituted or substituted by at least one group selected from the group consisting of hydroxyl, carboxyl, sulfo, and C2-6 alkoxycarbonyl, and phenyl unsubstituted or substituted by at least one group selected from the group consisting of hydroxyl, carboxyl, sulfo, and C2-6 alkoxycarbonyl;
- R8, R9, and R10 each independently are C1-4 alkyl;
- D is the group of the following formula (D-a),
- wherein, (R1)0-4 is 0, 1, 2, 3, or 4 R1 groups, and each R1 independently is identical or different and selected from the group consisting of halogen, hydroxyl, carboxyl, sulfo, C1-4 alkyl, C1-4 alkoxy, and C2-6 alkoxycarbonyl;
- A and B each independently are the group of the following formula (D-b),
- Wherein, R1 is defined as above;
- Q is selected from the group consisting of —NH—CO—CHX—CH2—X, —NH—CO—CX═CH2, —CONH(CH2)n—SO2—Y, and —SO2—Y, wherein, X is halogen;
- Y is —CH═CH2 or —CH2CH2U;
- and U is a leaving group which is eliminable by a base;
- and
- m and n are integers independent of one another between 2 to 3.
11 more elements
Dependencies are inferred from the claim text.