US4412948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive disazo blue dye
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1980-06-30
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Granted: 1983-11-01
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Expires: 2000-06-30
Abstract
Abstract A bisazo reactive dye represented by a free acid of the formula, <IMAGE> +TR <IMAGE> wherein X1 and X2 are each a hydrogen atom, a methyl or methoxy group, a chlorine atom, or a carboxylic acid or sulfonic acid group, Y is a hydrogen atom, a methyl or sulfonic acid group, Z is -CH2CH2OSO3H, -CH2CH2OPO3H2, -CH2CH2Cl or -CH=CH2, and Z1, Z2 and Z3 are each a hydrogen or chlorine atom, a methyl, methoxy, sulfonic acid or carboxylic acid group. This dye is usable for dyeing cellulose fibers in a deep blue color with good fastnesses, particularly, chlorine, light and perspiration-light fastnesses, a high acid stability, good white dischargeability as well as level dyeing properties.
Inventors
- 👤 Takashi Omura
- 👤 Yasuo Tezuka
- 👤 Masaki Sunami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:20
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/4401; C09B62/4403; C09B62/4411; C09B62/4415
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
101 words
A compound represented by a free acid of the formula, ##STR19## wherein X 1 and X 2 are each a hydrogen atom, a methyl or methoxy group, a chlorine atom, or a carboxylic acid or sulfonic acid group, Y is a hydrogen atom, a methyl or sulfonic acid group, Z is --CH 2 CH 2 OSO 3 H, --CH 2 CH 2 OPO 3 H 2 , --CH 2 CH 2 Cl or --CH═CH 2 , and Z 1 , Z 2 and Z 3 are each a hydrogen or chlorine atom, a methyl, methoxy, sulfonic acid or carboxylic acid group.
Claim 2
Dependent Claim
101 words
A compound represented by a free acid of the formula, ##STR19## wherein X 1 and X 2 are each a hydrogen atom, a methyl or methoxy group, a chlorine atom, or a carboxylic acid or sulfonic acid group, Y is a hydrogen atom, a methyl or sulfonic acid group, Z is --CH 2 CH 2 OSO 3 H, --CH 2 CH 2 OPO 3 H 2 , --CH 2 CH 2 Cl or --CH═CH 2 , and Z 1 , Z 2 and Z 3 are each a hydrogen or chlorine atom, a methyl, methoxy, sulfonic acid or carboxylic acid group.
Claim 3
Dependent Claim
39 words
A compound represented by a free acid of the formula, ##STR20## wherein Z is --CH 2 CH 2 OSO 3 H, --CH 2 CH 2 OPO 3 H 2 , --CH 2 CH 2 Cl or --CH═CH 2 .
Claim 4
Dependent Claim
39 words
A compound represented by a free acid of the formula, ##STR20## wherein Z is --CH 2 CH 2 OSO 3 H, --CH 2 CH 2 OPO 3 H 2 , --CH 2 CH 2 Cl or --CH═CH 2 .
Claim 5
Dependent Claim
39 words
A compound represented by a free acid of the formula, ##STR21## wherein Z is --CH 2 CH 2 OSO 3 H, --CH 2 CH 2 OPO 3 H 2 , --CH 2 CH 2 Cl or --CH═CH 2 .
Claim 6
Dependent Claim
39 words
A compound represented by a free acid of the formula, ##STR21## wherein Z is --CH 2 CH 2 OSO 3 H, --CH 2 CH 2 OPO 3 H 2 , --CH 2 CH 2 Cl or --CH═CH 2 .
Claim 7
Dependent Claim
11 words
A compound represented by a free acid of the formula, ##STR22##
Claim 8
Dependent Claim
11 words
A compound represented by a free acid of the formula, ##STR22##
References Cited (Backward Citations)
CH410237A
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BE617323A
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US3223470A
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GB961078A
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US3711460A
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FR2084024A5
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GB2026527A
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FR2437426A1
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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) | 1986-10-31 | 1987-05-02 | 1987-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-31 | 1991-05-02 | 1991-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-31 | 1995-05-02 | 1995-11-01 | $7700.00 | Window Closed / Lapsed |