Patent US205053A successfully refreshed from Google Patents.
Patent US4644058A successfully refreshed from Google Patents.
US4644058A
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Reactive pyridone azo dyes having both monochlorotriazinyl and vinylsulfone type reactive groups
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1982-11-18
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Granted: 1987-02-17
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Expires: 2002-11-18
Abstract
Abstract A monoazo compound represented by a free acid of the formula: <IMAGE> wherein R1 and R2 independently represent a hydrogen atom, or an alkyl, aralkyl or cyclohexyl group; R3 represents a hydrogen atom or a methyl or sulfonic acid group; R4 represents a hydrogen atom or an alkyl group; A represents an oxygen atom or -NH-; X1 and X2 independently represent a hydrogen or chlorine atom, or a methyl, methoxy, carboxyl or sulfonic acid group; and Y represents -CH=CH2 or -CH2CH2Z in which Z represents a halogen atom, -OSO3H or -OPO3H2. This compound is used for dyeing cellulose fibers to give dyed products of yellow to reddish yellow having excellent fastnesses, particularly chlorine fastness.
Inventors
- 👤 Yasutaka Shimidzu
- 👤 Naoki Harada
- 👤 Yasuo Tezuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:03
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/4401; C09B62/4403; C09B62/4411; C09B62/4413
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
109 words
A monoazo compound represented by a free acid of the formula, ##STR16## wherein R 1 and R 2 independently represent hydrogen, alkyl unsubstituted or substituted with hydroxy or alkoxy, aralkyl unsubstituted or substituted with alkyl, alkoxy or alkylamine, or cyclohexyl; R 3 represents hydrogen, methyl or sulfonic acid; R 4 represents hydrogen or alkyl unsubstituted or substituted with hydroxy, alkoxy, chloro, carboxy, alkoxy carbonyl or sulfo; A represents oxygen; X 1 and X 2 independently represent hydrogen, chlorine, methyl, methoxy, carboxyl or sulfonic acid; and Y represents --CH═CH 2 or --CH 2 CH 2 Z in which Z represents halogen, --OSO 3 H or --OPO 3 H 2 .
Claim 2
Dependent Claim
109 words
A monoazo compound represented by a free acid of the formula, ##STR16## wherein R 1 and R 2 independently represent hydrogen, alkyl unsubstituted or substituted with hydroxy or alkoxy, aralkyl unsubstituted or substituted with alkyl, alkoxy or alkylamine, or cyclohexyl; R 3 represents hydrogen, methyl or sulfonic acid; R 4 represents hydrogen or alkyl unsubstituted or substituted with hydroxy, alkoxy, chloro, carboxy, alkoxy carbonyl or sulfo; A represents oxygen; X 1 and X 2 independently represent hydrogen, chlorine, methyl, methoxy, carboxyl or sulfonic acid; and Y represents --CH═CH 2 or --CH 2 CH 2 Z in which Z represents halogen, --OSO 3 H or --OPO 3 H 2 .
Claim 3
Dependent Claim
11 words
The compound according to claim 1, wherein R 3 is hydrogen.
Claim 4
Dependent Claim
22 words
The compound according to claim 1, wherein R 4 is selected from hydrogen, C 1 -C 3 alkyl, 2-carboxyethyl, 2-carbamoylethyl and 2-hydroxyethyl.
Claim 5
Dependent Claim
94 words
A monoazo compound represented by a free acid of the formula, ##STR17## wherein R 1 and R 2 independently represent hydrogen, alkyl unsubstituted or substituted with hydroxy or alkoxy, aralkyl unsubstituted or substituted with alkyl, alkoxy or alkylamino, or cyclohexyl; R 3 represents hydrogen, methyl or sulfonic acid; R 4 represents hydrogen or alkyl unsubstituted or substituted with hydroxy, alkoxy, chloro, carboxy, alkoxy, carbonyl or sulfo; A represents oxygen; and Y represents --CH═CH 2 or --CH 2 CH 2 Z in which Z represents halogen, --OSO 3 H or --OPO 3 H 2 .
Claim 6
Dependent Claim
94 words
A monoazo compound represented by a free acid of the formula, ##STR17## wherein R 1 and R 2 independently represent hydrogen, alkyl unsubstituted or substituted with hydroxy or alkoxy, aralkyl unsubstituted or substituted with alkyl, alkoxy or alkylamino, or cyclohexyl; R 3 represents hydrogen, methyl or sulfonic acid; R 4 represents hydrogen or alkyl unsubstituted or substituted with hydroxy, alkoxy, chloro, carboxy, alkoxy, carbonyl or sulfo; A represents oxygen; and Y represents --CH═CH 2 or --CH 2 CH 2 Z in which Z represents halogen, --OSO 3 H or --OPO 3 H 2 .
Claim 7
Dependent Claim
11 words
The compound according to claim 4, wherein R 3 is hydrogen.
Claim 8
Dependent Claim
23 words
The compound according to claim 5, wherein R 4 is selected from hydrogen, C 1 -C 3 alkyl, 2-carboxylethyl, 2-carbamoylethyl and 2-hydroxyethyl group.
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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) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |