US3716368A
Expired / Lapsed
US
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Photographic, light-sensitive material containing a trisazo dyestuff
Assignee: Novartis AG
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Filing: 1970-09-23
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Granted: 1973-02-13
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Expires: 1990-09-23
Abstract
Abstract Photographic light-sensitive material, especially for the silver dyestuff bleaching process is provided. This material is characterized in that it contains on a support in at least one layer a trisazo dyestuff of the formula WHEREIN A, K, B and M each represents an aromatic or heterocyclic radical and E represents a radical derived from a coupling component. The dyestuff molecule moreover contains one or more groups conferring solubility in water and also may be present in the form of its metal complex compound. These trisazo dyestuffs absorb in the most diverse wave-length ranges. The trisazo dyestuffs are very fast to diffusion, have high color strength, are readily soluble and compatible with cations.
Inventors
- 👤 A Froehlich
- 👤 B Piller
- 👤 H Loeffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:56
CPC Classifications
C; C09; C09B; C09B33/00; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/18; C07D231/20; C07D231/22; C09B43/00; C09B43/12; C09B43/136; C09B43/145; C09B43/32; C09B45/00; G; G03; G03C; G03C7/00; G03C7/28; G03C7/29
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
114 words
Photographic, light-sensitive material which comprises on a support at least one silver halide containing layer and at least one layer containing an azo dyestuff of the formula wherein A1 represents a member selected from the group consisting of a benzene, naphthalene and pyrazolone radical, B1 represents a member selected from the group consisting of a benzene, diphenyl, naphthalene and pyrazolone radical and E1 represents a member selected from the group consisting of a benzene, naphthalene, or pyrazolone radical or an acetylamino radical derived from a coupling component, wherein at least the radicals A1-N N-B1 each contain one to four acid groups which confer solubility in water or the copper complex compounds of these dyestuffs.
Claim 2
Dependent Claim
114 words
Photographic, light-sensitive material which comprises on a support at least one silver halide containing layer and at least one layer containing an azo dyestuff of the formula wherein A1 represents a member selected from the group consisting of a benzene, naphthalene and pyrazolone radical, B1 represents a member selected from the group consisting of a benzene, diphenyl, naphthalene and pyrazolone radical and E1 represents a member selected from the group consisting of a benzene, naphthalene, or pyrazolone radical or an acetylamino radical derived from a coupling component, wherein at least the radicals A1-N N-B1 each contain one to four acid groups which confer solubility in water or the copper complex compounds of these dyestuffs.
Claim 3
Dependent Claim
37 words
Photographic material according to claim 1 in which one layer contains an azo dyestuff of the formula wherein A1, B1 and E1 have the significance given in claim 1, or the copper complex compounds of these dyestuffs.
Claim 4
Dependent Claim
252 words
Photographic material according to claim 1 in which one layer contains an azo dyestuff of the formula wherein A''1 is benzene, naphthalene, phenylpyrazolone, substituted benzene, substituent naphthalene or substituted phenylpyrazolone, the substituents being halogen, alkyl having one to five carbon atoms, alkoxy having one to five carbon atoms, nitro, sulfonic acid, hydroxyl or a radical of the formula in which U is hydrogen, alkyl having one to five carbon atoms, phenyl, alkylphenyl having one to five carbon atoms in the alkyl radical, hydroxyalkyl having one to five carbon atoms, cycloalkyl having five or six carbon atoms or acyl derived from an aliphatic carboxylic or sulfonic acid containing one to 10 carbon atoms, a carboxylic aromatic carboxylic or sulfonic acid containing one or two six-membered rings or a monocyclic heterocyclic carboxylic acid containing five or six ring members and N, S or O as hetero atoms; and U'' is hydrogen, alkyl containing one to five carbon atoms or hydroxyalkyl containing one to five carbon atoms, B''1 is benzene, naphthalene, diphenyl, substituted benzene, substituted naphthalene or substitutted diphenyl, the substituents being alkyl containing one to five carbon atoms, alkoxy containing one to five carbon atoms, hydroxyalkoxy containing one to five carbon atoms, alkoxyalkoxy containing twice one to five carbon atoms, carboxyalkoxy containing two to six carbon atoms, carboxyalkyl containing two to six carbon atoms, phenoxy, halogen, sulfonic acid, hydroxyl or acylamino, acyl being derived from the same acids as given for acyl in the definition of U; E1 is a radical of the formula
Claim 5
Dependent Claim
123 words
Photographic material according to claim 3 in which one layer contains an azo dyestuff of the formula wherein A2 represents benzene, napthalene, substituted benzene or substituted naphthalene, the substituEnts being halogen, alkyl containing one to five carbon atoms, alkoxy containing one to five carbon atoms, nitro, acylamino or one to three sulfonic acid groups, acyl having the significance given in the definition of U in claim 3; B2 represents benzene, naphthalene, substituted benzene or substituted naphthalene, the substituents being at most two alkyl, alkoxy, hydroxyalkoxy, alkoxy-alkoxy, acylamino, carboxyalkyl, carboxyalkoxy or phenoxy each alkyl radical having one to five carbon atoms or substituted naphthalene, the substituents being alkoxy and at most two sulfonic acid groups and E''1 has the significance indicated in claim 3.
Claim 6
Dependent Claim
17 words
Photographic material according to claim 3 in which one layer contains an azo dyestuff of the formula
Claim 7
Dependent Claim
17 words
Photographic material according to claim 3 in which one layer contains an azo dyestuff of the formula
Claim 8
Dependent Claim
17 words
Photographic material according to claim 3 in which one layer contains an azo dyestuff of the formula
Claim 9
Dependent Claim
17 words
Photographic material according to claim 7 in which one layer contains an azo dyestuff of the formula
Claim 10
Dependent Claim
17 words
Photographic material according to claim 1 in which one layer contains an azo dyestuff of the formula
Claim 11
Dependent Claim
184 words
Photographic material according to claim 3 in which one layer contains an azo dyestuff of the formula wherein A3 represents benzene, phenylpyrazolone or naphtalene, which radical contains at least one member selected from the group consisting of a hydRoxyl group and a radical of the formula wherein U'' represents hydrogen, alkyl containing one to five carbon atoms, phenyl, alkylphenyl containing one to five carbon atoms, acyl, hydroxyalkyl containing one to five carbon atoms or cycloalkyl containing five or six carbon atoms, and U''2 represents hydrogen, alkyl or hydroxyalkyl each containing one to five carbon atoms; acyl having the significance given in the definition of U in claim 3, B3 represents benzene, naphthalene or diphenyl, substituted benzene, substituted naphthalene or substituted diphenyl, the substituents being halogen, alkyl or alkoxy having one to five carbon atoms; with the radicals A3 and B3 together containing one to three sulfonic acid groups and E''1 has the significance indicated in claim 3; and the copper complex compounds of these dyestuffs, in which the dyestuff molecule contains one or two metal atoms in a complex bond between A3 and B3.
Claim 12
Dependent Claim
175 words
Photographic material according to claim 3 in which one layer contains an azo dyestuff of the formula wherein A5 represents naphthalene which contains at most two sulfonic acid groups, at least one hydroxyl group and a radical of the formula - O - U4 or wherein U4 represents hydrogen, alkyl containing one to five carbon atoms or phenyl methoxy, and U5 represents hydrogen, alkyl containing one to five carbon atoms, hydroxyalkyl containing one to five carbon atoms, phenyl or acyl, acyl having the significance given in the definition of U in claim 3, B5 is benzene containing at least one member selected from the group consisting of alkyl having one to five carbon atoms, alkoxy having one to five carbon atoms and acylamino, acyl having the above meaning, or naphthalene containing at most two sulfonic acid radicals or hydroxyl, and E''1 has the significance indicated in claim 3; or the copper complex compounds of these dyestuffs in which the dyestuff molecule contains one or two metal atoms in a complex bond between A5 and B5.
Claim 13
Dependent Claim
17 words
Photographic material according to claim 1 in which one layer contains an azo dyestuff of the formula
Claim 14
Dependent Claim
17 words
Photographic material according to claim 1 in which one layer contains an azo dyestuff of the formula
Claim 15
Dependent Claim
17 words
Photographic material according to claim 1 in which one layer contains an azo dyestuff of the formula
Claim 16
Dependent Claim
17 words
Photographic material according to claim 1 in which one layer contains an azo dyestuff of the formula
Claim 17
Dependent Claim
17 words
Photographic material according to claim 1 in which one layer contains an azo dyestuff of the formula
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |