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US4124581A
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Disazo dyestuffs containing a thiazole central component
Assignee: Bayer AG
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Filing: 1976-12-16
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Granted: 1978-11-07
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Expires: 1996-12-16
Abstract
Abstract Dyestuffs of the formula ##STR1## wherein D represents the radical of an aromatic carbocyclic or heterocyclic diazo component, K represents the radical of a carbocyclic or heterocyclic coupling component, A and B represent a direct bond or a bridge member, R 1 represents hydrogen, C 1 -C 4 -alkyl, optionally substituted phenyl or naphthyl, carbo-C 1 -C 4 -alkoxy, cyano or optionally substituted carboxamide, R 2 represents C 1 -C 4 -alkyl or optionally substituted phenyl or naphthyl and m and n represent 0, 1 or 2, and the sum of m and n denotes 1 or 2, Are suitable for the dyeing of natural and synthetic fibre materials, particularly polyamide materials in level, violet to blue-green shades in good color yield and with good fastness properties.
Inventors
- 👤 Dieter vor der Bruck
- 👤 Gerhard Wolfrum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:24
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/025; C09B39/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
221 words
Disazo-thiazole dyestuff, which in the form of the free acid corresponds to the formula ##STR17## wherein R 1 denotes hydrogen, methyl, ethyl, phenyl, or phenyl substituted by chlorine, methyl, methoxy, ethoxy or nitro; R 17 and R 18 denotes hydrogen, chlorine, bromine, cyano, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, trifluoromethyl, phenoxy, C 1 -C 4 -alkylsulphonyl, phenylsulphonyl, benzylsulphonyl, carboxamide, sulphonamide, mono- or di-substituted carboxamide, or mono- or di-substituted sulphonamide wherein the substituents are C 1 -C 4 -alkyl, β-hydroxyethyl, benzyl, phenyl or phenethyl; R 19 denotes hydrogen, C 1 -C 4 -alkyl, chlorine or bromine; K denotes ##STR18## wherein R 3 and R 4 denote C 1 -C 4 -alkyl, benzyl, 2-phenylethyl, or C 1 -C 4 -alkyl which is substituted by C 1 -C 4 -alkoxy, phenoxy, hydroxyl, cyano, chlorine, methylcarbonyloxy, ethylcarbonyloxy, methoxycarbonyloxy or ethoxycarbonyloxy; R 5 denotes hydrogen, methyl, ethyl, methoxy, ethoxy, chlorine or C 1 -C 3 -alkylcarbonylamino; R 6 denotes hydrogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, chlorine or bromine; R 20 and R 21 denote hydrogen, C 1 -C 4 -alkyl, chlorine or bromine; R 8 denotes hydrogen, C 1 -C 4 -alkyl, or phenyl; and R 9 denotes hydrogen, C 1 -C 4 -alkyl, or C 1 -C 4 -alkyl substituted by hydroxyl, cyano, carboxyl, or carboxamide.
Claim 2
Dependent Claim
221 words
Disazo-thiazole dyestuff, which in the form of the free acid corresponds to the formula ##STR17## wherein R 1 denotes hydrogen, methyl, ethyl, phenyl, or phenyl substituted by chlorine, methyl, methoxy, ethoxy or nitro; R 17 and R 18 denotes hydrogen, chlorine, bromine, cyano, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, trifluoromethyl, phenoxy, C 1 -C 4 -alkylsulphonyl, phenylsulphonyl, benzylsulphonyl, carboxamide, sulphonamide, mono- or di-substituted carboxamide, or mono- or di-substituted sulphonamide wherein the substituents are C 1 -C 4 -alkyl, β-hydroxyethyl, benzyl, phenyl or phenethyl; R 19 denotes hydrogen, C 1 -C 4 -alkyl, chlorine or bromine; K denotes ##STR18## wherein R 3 and R 4 denote C 1 -C 4 -alkyl, benzyl, 2-phenylethyl, or C 1 -C 4 -alkyl which is substituted by C 1 -C 4 -alkoxy, phenoxy, hydroxyl, cyano, chlorine, methylcarbonyloxy, ethylcarbonyloxy, methoxycarbonyloxy or ethoxycarbonyloxy; R 5 denotes hydrogen, methyl, ethyl, methoxy, ethoxy, chlorine or C 1 -C 3 -alkylcarbonylamino; R 6 denotes hydrogen, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, chlorine or bromine; R 20 and R 21 denote hydrogen, C 1 -C 4 -alkyl, chlorine or bromine; R 8 denotes hydrogen, C 1 -C 4 -alkyl, or phenyl; and R 9 denotes hydrogen, C 1 -C 4 -alkyl, or C 1 -C 4 -alkyl substituted by hydroxyl, cyano, carboxyl, or carboxamide.
Claim 3
Dependent Claim
74 words
Disazo-thiazole dyestuffs according to claim 1 which in the form of the free acid corresponds to the formula ##STR19## wherein R 17 , R 18 , and R 19 have the meaning indicated in claim 1; R 3 and R 4 denote C 1 -C 4 -alkyl, benzyl, phenethyl, or C 1 -C 4 -alkyl which is substituted by hydroxyl, cyano, acetoxy, methoxycarbonyloxy or chlorine; and R 5 denotes hydrogen, methyl, methoxy or acetylamino.
Claim 4
Dependent Claim
112 words
Disazo-thiazole dyestuff which in the form of the free acid corresponds to the formula ##STR20## wherein R 17 , R 18 , R 19 and R 1 have the meaning indicated in claim 1 and K represents the radicals ##STR21## wherein R 3 and R 4 denote C 1 -C 4 -alkyl, benzyl, phenethyl, or C 1 -C 4 -alkyl which is substituted by hydroxyl, cyano, acetoxy, methoxycarbonyloxy, or chlorine; R 5 denotes hydrogen, methyl, methoxy, or acetylamino; and R 4 ' denotes benzyl, sulphobenzyl, sulpho-C 1 -C 4 -alkyl, sulphato-C 1 -C 4 -alkyl, or substituted sulpho- or sulphato-C 1 -C 4 -alkyl where the substituent is methoxy, phenyl or phenoxy.
Claim 5
Dependent Claim
129 words
Disazo-thiazole dyestuff according to claim 1, which in the form of the free acid corresponds to the formula ##STR22## wherein R 1 , R 18 , R 19 and K' have the meaning indicated in claim 1 E represents C 1 -C 4 -alkylene, O-C 2 -C 4 -alkylene-O or C 2 -c 4 -alkylene-O, where alkylene is unsubstituted or substituted by C 1 -C 4 -alkoxy, phenoxy, or phenyl; p represents 0 or 1 and Z represents OH, NH-SO 2 -R 2 ', N-(R 16 )-C 2 -C 4 -alkylene-SO 3 H or N-(R 16 )-phenylene-SO 3 H; R 2 ' represents C 1 -C 4 -alkyl or phenyl which is optionally substituted by methyl or chlorine; and R 16 denotes hydrogen or C 1 -C 4 -alkyl.
Claim 6
Dependent Claim
65 words
Disazo-thiazole dyestuff which in the form of the free acid corresponds to the formula ##STR23## wherein R 3 , R 4 , R 5 , R 18 and R 19 have the meaning mentioned in claim 2; Z denotes OH, CH 3 -SO 2 NH, phenyl-SO 2 NH, tolyl-SO 2 -NH, or chlorophenyl-SO 2 -NH; and R 1 represents H, CH 3 , or phenyl.
Claim 7
Dependent Claim
34 words
Disazo-thiazole dyestuff which in the form of the free acid corresponds to the formula ##STR24## wherein R 1 , R 3 , R 4 and R 5 have the meaning indicated in claim 5.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |