US4686286A
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Disazo reactive dyestuffs for cellulose fibers
Assignee: Dystar Japan Ltd
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Filing: 1985-05-17
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Granted: 1987-08-11
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Expires: 2005-05-17
Abstract
Abstract A disazo reaction dyestuff for cellulose fibers which is of the formula: <IMAGE> wherein D is a residue of a monoazo dye, R1 is hydrogen or lower alkyl, and X is a group: <IMAGE> +TR <IMAGE> wherein R2 and R3 are each hydrogen, methyl, methoxy or -SO3M, Y is an aromatic or aliphatic divalent residue and M is hydrogen or an alkali metal.
Inventors
- 👤 Toshio Niwa
- 👤 Yoshiaki Katoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:05
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/4401; C09B62/4403; C09B62/4411; C09B62/4415; C09B62/503; C09B62/507; C09B62/513
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
A disazo reactive dyestuff for cellulose fibers which is of the formula: ##STR299## wherein D is a radical of a monoazo dye, R 1 is hydrogen or lower alkyl, and X is a group: ##STR300## wherein R 2 and R 3 are each hydrogen, methyl, methoxy or --SO 3 M, Y is a divalent radical selected from the group consisting of phenylene or phenylene substituted with methyl, methoxy, sulfonic acid, carboxylic acid radical, or chlorine, a linear alkylene group having 2 to 6 carbon atoms; ##STR301##
Claim 2
Dependent Claim
86 words
A disazo reactive dyestuff for cellulose fibers which is of the formula: ##STR299## wherein D is a radical of a monoazo dye, R 1 is hydrogen or lower alkyl, and X is a group: ##STR300## wherein R 2 and R 3 are each hydrogen, methyl, methoxy or --SO 3 M, Y is a divalent radical selected from the group consisting of phenylene or phenylene substituted with methyl, methoxy, sulfonic acid, carboxylic acid radical, or chlorine, a linear alkylene group having 2 to 6 carbon atoms; ##STR301##
Claim 3
Dependent Claim
53 words
The disazo reactive dyestuff for cellulose fibers according to claim 1 wherein ##STR302## is of the formula: ##STR303## wherein M is hydrogen or an alkali metal, R 4 is hydrogen, lower alkyl, lower alkoxy, acetylamino, carbamoylamino or chlorine, R 5 is hydrogen, lower alkyl or lower alkoxy, and m is 2 or 3.
Claim 4
Dependent Claim
51 words
The disazo reactive dyestuff for cellulose fibers according to claim 1 wherein ##STR304## is of the formula: ##STR305## wherein M is hydrogen or an alkali metal, D 1 is a radical of a benzene or naphthalene diazo component, R 1 is hydrogen or lower alkyl, and n is 0 or 1.
Claim 5
Dependent Claim
66 words
The disazo reactive dyestuff for cellulose fibers according to claim 1 which is of the formula: ##STR306## wherein R 2 and R 3 are each hydrogen, methyl, methoxy or --SO 3 M, R 4 is hydrogen, lower alkyl, lower alkoxy, acetylamino, carbamoylamino or chlorine, R 5 is hydrogen, lower alkyl or lower alkoxy, M is hydrogen or an alkali metal, and m is 2 or 3.
Claim 6
Dependent Claim
29 words
The disazo reactive dyestuff for cellulose fibers according to claim 4 wherein R 2 and R 3 are hydrogen, R 4 is lower alkyl, and R 5 is hydrogen.
Claim 7
Dependent Claim
74 words
The disazo reactive dyestuff for cellulose fibers according to claim 1 which is of the formula: ##STR307## wherein R 2 and R 3 are each hydrogen, methyl, methoxy or --SO 3 M, R 4 is hydrogen, lower alkyl, lower alkoxy, acetylamino, carbamoylamino or chlorine, R 5 is hydrogen, lower alkyl or lower alkoxy, M is hydrogen or an alkali metal, Y is an aromatic or aliphatic divalent radical, and m is 2 or 3.
Claim 8
Dependent Claim
64 words
The disazo reactive dyestuff for cellulose fibers according to claim 1 which is of the formula: ##STR308## wherein R 1 is hydrogen or lower alkyl, R 2 and R 3 are each hydrogen, methyl, methoxy or --SO 3 M, D 1 is a radical of a benzene or naphthalene diazo component, M is hydrogen or an alkali metal, and n is 0 or 1.
Claim 9
Dependent Claim
36 words
The disazo reactive dyestuff for cellulose fibers according to claim 7 wherein R 1 , R 2 and R 3 are hydrogen, D 1 is a radical of a benzene diazo component, and Y is phenylene.
Claim 10
Dependent Claim
42 words
The disazo reactive dyestuff for cellulose fibers according to claim 8 wherein the radical of the benzene diazo component represented by D 1 is of the formula: ##STR309## wherein k is 1 or 2 and M is hydrogen or an alkali metal.
Claim 11
Dependent Claim
63 words
The disazo reactive dyestuff for cellulose fibers according to claim 1 which is of the formula: ##STR310## wherein R 1 is hydrogen or lower alkyl, R 2 and R 3 are hydrogen, methyl, methoxy or --SO 3 M, D 1 is a radical of a benzene or naphthalene diazo component, M is hydrogen or an alkali metal, and n is 0 or 1.
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) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |