US4010150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Red copper complexes of disazo compounds containing triazine groups
Assignee: Nippon Kayaku Co Ltd
•
Filing: 1973-12-04
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Granted: 1977-03-01
•
Expires: 1993-12-04
Abstract
Abstract Lightfast and waterfast azo dyes suitable for dyeing fibers and paper, particularly cellulosic materials, and having the following formula: ##STR1## wherein A is a group selected from 4-methoxy-2-sulfophenyl, 4-methoxy-3-sulfophenyl, 2- or 3-sulphonyl, tolyl, 4-nitro-2,2'-disulfostilbyl, sulfonaphthyl and 4-(4-sulfophenylazo)-2-sulfophenyl; B is selected from monoethanolamino, diethanolamino, morpholino, and N-methylamino; W is hydrogen or sulfonic acid; and Z is sulfonic acid attached at the meta or para position relative to the pendant diazo.
Inventors
- 👤 Tooru Tabei
- 👤 Yasuhiko Arisaka
- 👤 Yutaka Iizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:09
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/02; C09B45/24; C09B45/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
56 words
An azo dye having the following formula: ##STR217##wherein A is a group selected from 4-methoxy-2-sulfophenyl, 4-methoxy-3-sulfophenyl, 2- or 3-sulfophenyl, tolyl, 4-nitro-2,2'-disulfostilbyl, sulfonaphthyl and 4-(4-sulfophenylazo)-2-sulfophenyl; B is selected from monoethanolamino, diethanolamino, morpholino, and N-methylamino; W is hydrogen or sulfonic acid; and Z is sulfonic acid attached at the meta or para position relative to the pendant diazo.
Claim 2
Dependent Claim
56 words
An azo dye having the following formula: ##STR217##wherein A is a group selected from 4-methoxy-2-sulfophenyl, 4-methoxy-3-sulfophenyl, 2- or 3-sulfophenyl, tolyl, 4-nitro-2,2'-disulfostilbyl, sulfonaphthyl and 4-(4-sulfophenylazo)-2-sulfophenyl; B is selected from monoethanolamino, diethanolamino, morpholino, and N-methylamino; W is hydrogen or sulfonic acid; and Z is sulfonic acid attached at the meta or para position relative to the pendant diazo.
Claim 3
Dependent Claim
17 words
An azo dye according to claim 1 in the form of a sodium, potassium or ammonium salt.
Claim 4
Dependent Claim
8 words
An azo dye having the following formula: ##STR218##
Claim 5
Dependent Claim
8 words
An azo dye having the following formula: ##STR218##
Claim 6
Dependent Claim
8 words
An azo dye having the following formula: ##STR219##
Claim 7
Dependent Claim
8 words
An azo dye having the following formula: ##STR219##
Claim 8
Dependent Claim
8 words
An azo dye having the following formula: ##STR220##
Claim 9
Dependent Claim
8 words
An azo dye having the following formula: ##STR220##
Claim 10
Dependent Claim
8 words
An azo dye having the following formula: ##STR221##
Claim 11
Dependent Claim
8 words
An azo dye having the following formula: ##STR221##
Claim 12
Dependent Claim
8 words
An azo dye having the following formula: ##STR222##
Claim 13
Dependent Claim
8 words
An azo dye having the following formula: ##STR222##
References Cited (Backward Citations)
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US1667312A
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US1779298A
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US2467621A
Cited
US2538568A
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Cited
US2763640A
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US2835663A
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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) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |