US4501592A
Expired / Lapsed
US
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Anthraquinone dyes, process for their preparation, and use thereof
Assignee: Novartis Corp
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Filing: 1983-08-10
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Granted: 1985-02-26
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Expires: 2003-08-10
Abstract
Abstract The invention relates to dyes of the formula ##STR1## wherein X is oxygen or sulfur, R is hydrogen or C 1 -C 4 alkyl, Y is an unsubstituted or substituted aryl radical, n is 1, 2 or 3, the benzene ring A may be substituted by halogen and the benzene rings B and D may each independently be substituted by halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or a radical of the formula --O--CH 2 CH 2 --O--R 1 , wherein R 1 is hydrogen, methyl or ethyl. These dyes are suitable for dyeing or printing natural or synthetic polyamide fibres.
Inventors
- 👤 Jean-Marie Adam
- 👤 Peter Bloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:48
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/39; D06P1/40; C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/32; C09B1/34; C09B1/343; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
89 words
A dye of the formula ##STR15## wherein X is oxygen or sulfur, R is hydrogen or C 1 -C 4 alkyl, Y is an unsubstituted or substituted aryl radical, n is 1, 2 or 3, the benzene ring A may be substituted by halogen and the benzene rings B and D may each independently be substituted by halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or a radical of the formula --O--CH 2 CH 2 --O--R 1 , wherein R 1 is hydrogen, methyl or ethyl.
Claim 2
Dependent Claim
89 words
A dye of the formula ##STR15## wherein X is oxygen or sulfur, R is hydrogen or C 1 -C 4 alkyl, Y is an unsubstituted or substituted aryl radical, n is 1, 2 or 3, the benzene ring A may be substituted by halogen and the benzene rings B and D may each independently be substituted by halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or a radical of the formula --O--CH 2 CH 2 --O--R 1 , wherein R 1 is hydrogen, methyl or ethyl.
Claim 3
Dependent Claim
18 words
A dye according to claim 1, wherein Y is an unsubstituted or substituted phenyl, diphenyl or naphthyl radical.
Claim 4
Dependent Claim
91 words
A dye according to claim 2, wherein X is oxygen, and Y is phenyl, diphenyl or naphthyl, each of which may be substituted by halogen, nitro, C 1 -C 4 alkyl or C 1 -C 4 alkoxy, the benzene ring A may be substituted by chlorine and the benzene rings B and D may each independently be substituted by halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or a radical of the formula --O--CH 2 CH 2 --O--R 1 , wherein R 1 is hydrogen, methyl or ethyl.
Claim 5
Dependent Claim
50 words
A dye according to claim 3, wherein Y is phenyl which may be substituted by chlorine, nitro or C 1 -C 4 alkyl, or is diphenyl or naphthyl, the benzene rings A and B are unsubstituted, and the benzene ring D may be substituted by C 1 -C 4 alkyl.
Claim 6
Dependent Claim
14 words
A dye according to either claim 3 or claim 4, wherein n is 1.
Claim 7
Dependent Claim
10 words
A dye according to claim 5, of the formula ##STR16##
Claim 8
Dependent Claim
16 words
A dye according to either claim 3 or claim 4, wherein n is 2 or 3.
Claim 9
Dependent Claim
30 words
A dye according to claim 7, of the formula ##STR17## wherein Y is phenyl, chlorophenyl, dichlorophenyl, nitrophenyl, dimethylphenyl, tert-butylphenyl, diphenyl or 2-naphthyl, and n is as defined in claim 7.
Claim 10
Dependent Claim
16 words
A dye according to claim 8, of the formula ##STR18## wherein n is 2 or 3.
Claim 11
Dependent Claim
36 words
A process for the preparation of a dye according to claim 1, which comprises reacting an anthraquinone compound of the formula ##STR19## with n mole of a compound which introduces the radical of the formula ##STR20##
Claim 12
Dependent Claim
36 words
A process according to claim 10, wherein the compound which introduces the radical of the formula (6) is an N-methylolamide of the formula ##STR21## or a reactive functional derivative of a compound which contains methylol groups.
Claim 13
Dependent Claim
18 words
A process according to claim 11, which comprises the use of the N-methylol compound of a benzene monocarboxamide.
Claim 14
Dependent Claim
12 words
A process according to claim 12, which comprises the use of N-methylolbenzamide.
Claim 15
Dependent Claim
106 words
A process for dyeing or printing a polyamide substrate comprising the step of applying to the substrate a dye of the formula ##STR22## wherein X is oxygen or sulfur, R is hydrogen or C 1 -C 4 alkyl, Y is an unsubstituted or substituted aryl radical, n is 1, 2 or 3, the benzene ring A may be substituted by halogen and the benzene rings B and D may each independently be substituted by halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or a radical of the formula (O--CH 2 CH 2 )O--R 1 , wherein R 1 is hydrogen, methyl or ethyl.
Claim 16
Dependent Claim
106 words
A process for dyeing or printing a polyamide substrate comprising the step of applying to the substrate a dye of the formula ##STR22## wherein X is oxygen or sulfur, R is hydrogen or C 1 -C 4 alkyl, Y is an unsubstituted or substituted aryl radical, n is 1, 2 or 3, the benzene ring A may be substituted by halogen and the benzene rings B and D may each independently be substituted by halogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy or a radical of the formula (O--CH 2 CH 2 )O--R 1 , wherein R 1 is hydrogen, methyl or ethyl.
Claim 17
Dependent Claim
15 words
The process of claim 14 wherein the dye is applied to the substrate by printing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |