Patent US2287660A successfully refreshed from Google Patents.
Patent US4003885A successfully refreshed from Google Patents.
US4003885A
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US
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Tetrakisazo compounds having a 1-hydroxy-2-(4'-(2"-sulfoanilino)phenylazo)-3,6-disulfo-7-(optionally 2'-substituted phenylazo)-8-aminonaphthalene middle component
Assignee: Sandoz AG
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Filing: 1974-07-02
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Granted: 1977-01-18
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Expires: 1994-07-02
Abstract
Abstract Compounds of the formula <IMAGE> <IMAGE> in which X signifies hydrogen, halogen or -SO3M, M signifies hydrogen or a non-chromophoric cation, and K1 and K2, which are the same or different, each signifies a coupling component which has at least one free amino, enolic hydroxy or phenolic hydroxy group, AND MIXTURES THEREOF, ARE USEFUL AS ANIONIC DYES FOR NATURAL AND REGENERATED CELLULOSE, NATURAL AND SYNTHETIC POLYAMIDES, POLYURETHANES, BASICALLY MODIFIED POLYOLEFINS, PAPER AND, PARTICULARLY, LEATHER. The dyes are well-soluble in water, resistant to acid, have relatively low substantivity on leather, produce level dyeings and have no hardening effect on chrome-tanned leather and exhibit good fastness to light and wet treatments on paper. Also disclosed are compounds of the formula <IMAGE> <IMAGE> wherein M and X are as defined above, which are useful as intermediates.
Inventors
- 👤 Claude Vogel
- 👤 Heinz Wicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:29
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/08; C09B33/00; C09B33/02; C09B33/08; C09B33/10
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
132 words
A dye of the formula ##STR53##or a mixture thereof, wherein X is hydrogen, halo or --SO 3 M, each of K 1 and K 2 is independently the radical of a coupling component of the formula ##STR54## wherein Y 1 is --OH or --NH 2 , Y 2 is --OH, --NH 2 , anilino or toluidino, Y 3 is hydrogen, --SO 3 M or alkyl of 1 to 6 carbon atoms, with the proviso that when Y 3 is alkyl of 1 to 6 carbon atoms, Y 1 and Y 2 are --NH 2 , Y 4 is hydrogen, --OH, --NH 2 , anilino, toluidino or acetamido, n is 0, 1 or 2, and each M is hydrogen or a non-chromophoric cation, wherein each halo is independently fluoro, chloro, bromo or iodo.
Claim 2
Dependent Claim
132 words
A dye of the formula ##STR53##or a mixture thereof, wherein X is hydrogen, halo or --SO 3 M, each of K 1 and K 2 is independently the radical of a coupling component of the formula ##STR54## wherein Y 1 is --OH or --NH 2 , Y 2 is --OH, --NH 2 , anilino or toluidino, Y 3 is hydrogen, --SO 3 M or alkyl of 1 to 6 carbon atoms, with the proviso that when Y 3 is alkyl of 1 to 6 carbon atoms, Y 1 and Y 2 are --NH 2 , Y 4 is hydrogen, --OH, --NH 2 , anilino, toluidino or acetamido, n is 0, 1 or 2, and each M is hydrogen or a non-chromophoric cation, wherein each halo is independently fluoro, chloro, bromo or iodo.
Claim 3
Dependent Claim
6 words
A dye according to claim 1.
Claim 4
Dependent Claim
26 words
A dye according to claim 1, or a mixture thereof, wherein Y 3 is hydrogen, --SO 3 M or alkyl of 1 to 4 carbon atoms.
Claim 5
Dependent Claim
21 words
A dye according to claim 3, or a mixture thereof, wherein Y 3 is hydrogen, --SO 3 M, methyl or ethyl.
Claim 6
Dependent Claim
30 words
A dye according to claim 1, or a mixture thereof, wherein each of K 1 and K 2 is independently the radical of a coupling component of the formula ##STR55##
Claim 7
Dependent Claim
30 words
A dye according to claim 1, or a mixture thereof, wherein each of K 1 and K 2 is independently the radical of a coupling component of the formula ##STR56##
Claim 8
Dependent Claim
53 words
A dye according to claim 1, or a mixture thereof, wherein each of K 1 and K 2 is independently the radical of a coupling component of the formula ##STR57## with the proviso that at least one of K 1 and K 2 is the radical of a coupling component other than ##STR58##
Claim 9
Dependent Claim
30 words
A dye according to claim 7, or a mixture thereof, wherein each of K 1 and K 2 is independently the radical of a coupling component of the formula ##STR59##
Claim 10
Dependent Claim
52 words
A dye according to claim 1, or a mixture thereof, wherein each of K 1 and K 2 is independently the radical of a coupling component of the formula ##STR60##with the proviso that at least one of K 1 and K 2 is the radical of a coupling component other than ##STR61##10.
Claim 11
Dependent Claim
30 words
A dye according to claim 9, or a mixture thereof, wherein each of K 1 and K 2 is independently the radical of a coupling component of the formula ##STR62##
Claim 12
Dependent Claim
13 words
A dye according to claim 10 having the formula or a mixture thereof.
Claim 13
Dependent Claim
6 words
A dye according to claim 11.
Claim 14
Dependent Claim
11 words
A dye according to claim 12 wherein each M is sodium.
Claim 15
Dependent Claim
10 words
The dye according to claim 12 having the formula ##STR63##
Claim 16
Dependent Claim
15 words
A dye according to claim 11, or a mixture thereof, wherein each M is sodium.
Claim 17
Dependent Claim
13 words
A dye according to claim 10 having the formula ##STR64##or a mixture thereof.
Claim 18
Dependent Claim
6 words
A dye according to claim 16.
Claim 19
Dependent Claim
11 words
A dye according to claim 17 wherein each M is sodium.
Claim 20
Dependent Claim
15 words
A dye according to claim 16, or a mixture thereof, wherein each M is sodium.
Claim 21
Dependent Claim
13 words
A dye according to claim 10 having the formula ##STR65##or a mixture thereof.
Claim 22
Dependent Claim
11 words
A dye according to claim 20 wherein each M is sodium.
Claim 23
Dependent Claim
15 words
A dye according to claim 20, or a mixture thereof, wherein each M is sodium.
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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) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |