US4183753A
Expired / Lapsed
US
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Photographic products and processes employing metal complexed azo dyes
Assignee: Eastman Kodak Co
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Filing: 1978-07-24
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Granted: 1980-01-15
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Expires: 1998-07-24
Abstract
Abstract Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety such as an arylazo-pyrazolotriazole or arylazo-pyridinol. The compound contains: (a) a nitrogen atom in a metal chelating location in at least one of the rings attached to the azo group; (b) in the ortho position of the arylazo moiety a metal chelating group (or a salt thereof or a hydrolyzable precursor thereof), and (c) a ballasted carrier moiety which is capable of releasing the diffusible azo dye under alkaline conditions. The dye is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability.
Inventors
- 👤 Brian D. Baigrie
- 👤 Joseph Bailey
- 👤 Linda G. Johnston
- 👤 Miroslav V. Mijovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:06
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10; Y; Y10; Y10S; Y10S430/00; Y10S430/137; Y10S430/156; Y10S430/159; Y10S534/00; Y10S534/02
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
23 words
A coordination complex of a polyvalent metal ion and a compound having the following formula: ##STR27## wherein: G is a metal chelating group.
Claim 2
Dependent Claim
23 words
A coordination complex of a polyvalent metal ion and a compound having the following formula: ##STR27## wherein: G is a metal chelating group.
Claim 3
Dependent Claim
23 words
The complex of claim 1 wherein the metal ion is nickel (II), copper (II), zinc (II), platinum (II), palladium (II), or cobalt (II).
Claim 4
Dependent Claim
9 words
The complex of claim 1 wherein G is hydroxy.
Claim 5
Dependent Claim
23 words
A coordination complex of a polyvalent metal ion and a compound having the following formula: ##STR28## wherein: G is a metal chelating group.
Claim 6
Dependent Claim
23 words
A coordination complex of a polyvalent metal ion and a compound having the following formula: ##STR28## wherein: G is a metal chelating group.
Claim 7
Dependent Claim
23 words
The complex of claim 4 wherein the metal ion is nickel (II), copper (II), zinc (II), platinum (II), palladium (II), or cobalt (II).
Claim 8
Dependent Claim
9 words
The complex of claim 4 wherein G is hydroxy.
Claim 9
Dependent Claim
30 words
The complex of claim 4 wherein the phenyl group is substituted with a nitro group para to the azo linkage and the pyridine ring is substituted with an amino group.
Claim 10
Dependent Claim
139 words
A photographic element comprising a support having thereon a layer comprising a photographic mordant and bound thereto a coordination complex of a polyvalent metal ion and a compound having the following formula: ##STR29## wherein: Z represents the atoms necessary to complete an aromatic carbocyclic or heterocyclic nucleus having at least one ring of 5 to 7 atoms; Z' is an aromatic carbocyclic or heterocyclic nucleus having at least one ring of 5 to 7 atoms, said Z' having, in a position adjacent to the point of attachment to the azo linkage, either (a) a nitrogen atom in said ring of said nucleus which acts as a chelating site, or (b) a carbon atom in said ring of said nucleus having directly attached thereto a nitrogen atom which acts as a chelating site; and G is a metal chelating group.
Claim 11
Dependent Claim
139 words
A photographic element comprising a support having thereon a layer comprising a photographic mordant and bound thereto a coordination complex of a polyvalent metal ion and a compound having the following formula: ##STR29## wherein: Z represents the atoms necessary to complete an aromatic carbocyclic or heterocyclic nucleus having at least one ring of 5 to 7 atoms; Z' is an aromatic carbocyclic or heterocyclic nucleus having at least one ring of 5 to 7 atoms, said Z' having, in a position adjacent to the point of attachment to the azo linkage, either (a) a nitrogen atom in said ring of said nucleus which acts as a chelating site, or (b) a carbon atom in said ring of said nucleus having directly attached thereto a nitrogen atom which acts as a chelating site; and G is a metal chelating group.
Claim 12
Dependent Claim
23 words
The photographic element of claim 8 wherein Z represents the atoms necessary to complete a phenyl group and Z' represents a pyrazolotriazole nucleus.
Claim 13
Dependent Claim
23 words
The photographic element of claim 8 wherein Z represents the atoms necessary to complete a phenyl group and Z' represents a pyridinol nucleus.
Claim 14
Dependent Claim
24 words
The photographic element of claim 8 wherein the metal ion is nickel (II), copper (II), zinc (II), platinum (II), palladium (II), or cobalt (II).
Claim 15
Dependent Claim
10 words
The photographic element of claim 8 wherein G is hydroxy.
Claim 16
Dependent Claim
20 words
The photographic element of claim 8 wherein said compound has the formula: ##STR30## wherein: G is a metal chelating group.
Claim 17
Dependent Claim
24 words
The photographic element of claim 13 wherein the metal ion is nickel (II), copper (II), zinc (II), platinum (II), palladium (II), or cobalt (II).
Claim 18
Dependent Claim
10 words
The photographic element of claim 13 wherein G is hydroxy.
Claim 19
Dependent Claim
20 words
The photographic element of claim 8 wherein said compound has the formula: ##STR31## wherein: G is a metal chelating group.
Claim 20
Dependent Claim
24 words
The photographic element of claim 16 wherein the metal ion is nickel (II), copper (II), zinc (II), platinum (II), palladium (II), or cobalt (II).
Claim 21
Dependent Claim
10 words
The photographic element of claim 16 wherein G is hydroxy.
Claim 22
Dependent Claim
34 words
The photographic element of claim 16 wherein the phenyl group is substituted with a nitro group para to the azo linkage and the pyridine ring is substituted in the 2-position with an amino group.
References Cited (Backward Citations)
US2868775A
Cited
US3468871A
Cited
US4008211A
Cited
US3860571A
Cited
US3870695A
Cited
US3875139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |