Patent EP0256650A2 successfully refreshed from Google Patents.
EP0256650A2
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Reactive dyes
Assignee: Syngenta Ltd
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Filing: 1987-07-06
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Granted: —
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Expires: 2007-07-06
Abstract
Abstract A water-soluble reactive dye of the formula: D¹ - Z¹ - NR¹ - T - NR² - Z² - D² (1) wherein each of D¹ and D², independently, represents the radical of a water-soluble chromophoric compound, each of Z¹ and Z², independently, represents a triazine or pyrimidine residue carrying an atom or group imparting fibre-reactivity to the dye, R¹ represents an optionally substituted alkyl radical, R² represents hydrogen or an optionally substituted alkyl radical, and T represents a 1,3- or 1,4-phenylene radical which may carry one or more substituents selected from halogen, alkyl, alkoxy, acylamino, nitro and carboxy.
Inventors
- 👤 John Anthony Taylor
- 👤 Duncan Adrian Sidney Phillips
- 👤 Yung Chu Kwong
- 👤 Gerard Ellis
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 15:00
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/006; C09B62/008; C09B62/02; C09B62/04; C09B62/043; C09B62/022; C09B62/026; C09B62/028
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
97 words
A water-soluble reactive dye of the formula: D¹ - Z¹ - NR¹ - T - NR² - Z² - D² wherein each of D¹ and D², independently, represents the radical of a water-soluble chromophoric compound, each of Z¹ and Z², independently, represents a triazine or pyrimidine residue carrying an atom or group imparting fibre-reactivity to the dye, R¹ represents an optionally substituted alkyl radical, R² represents hydrogen or an optionally substituted alkyl radical, and T represents a 1,3- or 1,4-phenylene radical which may carry one or more substituents selected from halogen, alkyl, alkoxy, acylamino, nitro and carboxy.
Claim 2
Dependent Claim
97 words
A water-soluble reactive dye of the formula: D¹ - Z¹ - NR¹ - T - NR² - Z² - D² wherein each of D¹ and D², independently, represents the radical of a water-soluble chromophoric compound, each of Z¹ and Z², independently, represents a triazine or pyrimidine residue carrying an atom or group imparting fibre-reactivity to the dye, R¹ represents an optionally substituted alkyl radical, R² represents hydrogen or an optionally substituted alkyl radical, and T represents a 1,3- or 1,4-phenylene radical which may carry one or more substituents selected from halogen, alkyl, alkoxy, acylamino, nitro and carboxy.
Claim 3
Dependent Claim
62 words
A reactive dye according to claim 1 wherein D¹ and D² respectively are radicals of the form D³NR³- and D⁴NR⁴- in which each of D³ and D⁴, independently, represents a radical of the azo, anthraquinone, phthalocyanine, formazan or triphenodioxazine series carrying one or more sulphonic acid groups and each of R³ and R⁴, independently, represents hydrogen or an optionally substituted hydrocarbon radical.
Claim 4
Dependent Claim
18 words
A reactive dye according to claim 1 wherein each of D¹ and D² is a sulphonated monoazo radical.
Claim 5
Dependent Claim
42 words
A reactive dye according to claim 3 wherein each of D¹ and D² is a radical of the formula: wherein A represents a radical of the benzene or naphthalene series and one of U and V is -SO₃H, the other being H.
Claim 6
Dependent Claim
29 words
A reactive dye according to claim 4 wherein A is a sulphonated phenyl or naphthyl radical having a sulpho group in an ortho position relative to the azo group.
Claim 7
Dependent Claim
17 words
A reactive dye according to claim 1 wherein each of Z¹ and Z² is a monochlorotriazine radical.
Claim 8
Dependent Claim
10 words
A reactive dye according to claim 1 having the formula:
Claim 9
Dependent Claim
34 words
A reactive dye mixture containing from 2 to 20% by weight of the dye defined in claim 7 and from 98 to 80% by weight of the dye of the formula: where Y is
Claim 10
Dependent Claim
107 words
A method for the preparation of a reactive dye as defined in claim 1 which comprises reacting a 1,3- or 1,4-phenylene diamine of the formula: wherein R¹ and R² are as defined in claim 1 and the aromatic ring may be substituted by halogen, alkyl, alkoxy, acylamino, nitro or carboxy, with one mole of a triazine or pyrimidine compound of the formula: D¹ - Z¹ - X¹ and one mole of a triazine or pyrimidine compound of the formula: D² - Z² - X² wherein D¹, D², Z¹ and Z² are as defined in claim 1 and each of X¹ and X² is Cl, Br or F.
Claim 11
Dependent Claim
80 words
A method for the preparation of a reactive dye as defined in claim 1 which comprises reacting a 1,3- or 1,4-phenylenediamine of the formula: wherein R¹ and R² are as defined in claim 1 and the aromatic ring may be substituted by halogen, alkyl, alkoxy, acylamino, nitro or carboxy with two moles of cyanuric halide or an appropriate halogeno pyrimidine followed by dyestuff compounds of the formula D¹H and D²H wherein D¹ and D² are as defined in claim 1.
Claim 12
Dependent Claim
23 words
A process for colouring textile materials which comprises applying thereto a reactive dye as claimed in any one of claims 1 to 8.
Claim 13
Dependent Claim
23 words
A process according to claim 11 wherein the dye is applied to a cellulosic textile material in conjunction with an acid binding agent.
References Cited (Backward Citations)
No citation records indexed.
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