US4097281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat developable photographic material and process comprising transition metal carbonyl compounds
Assignee: Eastman Kodak Co
•
Filing: 1977-10-17
•
Granted: 1978-06-27
•
Expires: 1997-10-17
Abstract
Abstract A heat developable, photographic material comprising, in reactive association, (a) a photosensitive, transition metal carbonyl compound, (b) an oxidation-reduction image-forming combination comprising (i) a tellurium (II) or (IV) compound as an oxidizing agent, with (ii) a reducing agent, and (c) a binder can provide an improved non-silver image. After imagewise exposure of the heat developable material, an image can be developed by merely heating the material.
Inventors
- 👤 Sylvia Alice Gardner
- 👤 Mark Lelental
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:24
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/73; G03C1/735
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
66 words
A heat developable, photographic element comprising a support having thereon, in reactive association, (a) a photosensitive, transition metal carbonyl compound, wherein said transition metal is selected from transition elements in groups Vb, VIb, VIIb and VIII of the Periodic Table (b) an oxidation-reduction image-forming combination comprising: (i) an organotellurium (II) or (IV) compound as an oxidizing agent, with (ii) a reducing agent, and (c) a binder.
Claim 2
Dependent Claim
66 words
A heat developable, photographic element comprising a support having thereon, in reactive association, (a) a photosensitive, transition metal carbonyl compound, wherein said transition metal is selected from transition elements in groups Vb, VIb, VIIb and VIII of the Periodic Table (b) an oxidation-reduction image-forming combination comprising: (i) an organotellurium (II) or (IV) compound as an oxidizing agent, with (ii) a reducing agent, and (c) a binder.
Claim 3
Dependent Claim
62 words
A heat developable, photographic element as in claim 1 wherein said photosensitive, transition metal carbonyl compound is represented by the formula: RM(CO).sub.n X.sub.m wherein R is an arene, a substituted arene, a cyclopentadienyl ligand or an acetonitrile ligand; M is Cr, Mo or Fe; X is alkyl, chlorine, bromine or iodine; n is 3 to 5; and, m is 0 or 1.
Claim 4
Dependent Claim
21 words
A heat developable, photographic element as in claim 1 wherein said photosensitive, transition metal carbonyl compound is an arene chromiumtricarbonyl compound.
Claim 5
Dependent Claim
24 words
A heat developable, photographic element as in claim 1 wherein said photosensitive, transition metal carbonyl compound consists essentially of tetralin chromiumtricarbonyl or mesitylene chromiumtricarbonyl.
Claim 6
Dependent Claim
20 words
A heat developable, photographic element as in claim 1 wherein said organotellurium compound is a coordination complex of tellurium (II).
Claim 7
Dependent Claim
26 words
A heat developable, photographic element as in claim 1 wherein said organotellurium compound is a coordination complex of tellurium (II) with two univalent bidentate sulfur-containing compounds.
Claim 8
Dependent Claim
66 words
A heat developable, photographic element as in claim 1 wherein said organotellurium compound is a compound selected from the group consisting of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , Te(S 2 CN(C 2 H 5 ) 2 ) 4 , Te S 2 CN(C 6 H 5 ) 2 ! 2 , and Te(S 2 COC 12 H 25 ) 2 .
Claim 9
Dependent Claim
25 words
A heat developable, photographic element as in claim 1 wherein said reducing agent is selected from the group consisting of 3-pyrazolidone and phenolic developing agents.
Claim 10
Dependent Claim
18 words
A heat developable, photographic element as in claim 1 wherein said reducing agent is a benzenesulfonamidophenol developing agent.
Claim 11
Dependent Claim
17 words
A heat developable, photographic element as in claim 1 wherein said reducing agent consists essentially of 2,6-dichlorobenzenesulfonamidophenol.
Claim 12
Dependent Claim
17 words
A heat developable, photographic element as in claim 1 wherein said binder is a synthetic polymeric binder.
Claim 13
Dependent Claim
48 words
A heat developable, photographic element as in claim 1 wherein said binder is a synthetic polymeric binder selected from the group consisting of (A) poly(methyl acrylate-co-vinylidene chloride-co-itaconic acid), (B) poly(methyl acrylate-co-acrylonitrile-co-vinylidene chloride-co-acrylic acid), (C) poly(acrylonitrile-co-vinylidene chloride), (D) poly(vinyl acetate-co-vinyl alcohol-co-vinyl acetal), (E) poly(vinyl butyral), and (F) polycarbonate binders.
Claim 14
Dependent Claim
41 words
A heat developable, photographic element as in claim 1 comprising for each mole of said photosensitive, transition metal carbonyl compound, 0.1 to 10 3 moles of said organotellurium compound and 0.1 to 4 × 10 3 moles of said reducing agent.
Claim 15
Dependent Claim
54 words
A heat developable, photographic element comprising a support having thereon, in reactive association, (a) a photosensitive arene chromiumtricarbonyl, (b) an oxidation-reduction image-forming combination comprising (i) a tellurium complex consisting essentially of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , with (ii) a 3-pyrazolidone developing agent, and (c) a synthetic polymeric binder.
Claim 16
Dependent Claim
54 words
A heat developable, photographic element comprising a support having thereon, in reactive association, (a) a photosensitive arene chromiumtricarbonyl, (b) an oxidation-reduction image-forming combination comprising (i) a tellurium complex consisting essentially of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , with (ii) a 3-pyrazolidone developing agent, and (c) a synthetic polymeric binder.
Claim 17
Dependent Claim
58 words
A heat developable, photographic element comprising a support having thereon, in reactive association, (a) a photosensitive arene chromiumtricarbonyl, (b) an oxidation-reduction image-forming combination comprising (i) an organotellurium compound as an oxidizing agent consisting essentially of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , with (ii) a benzenesulfonamidophenol reducing agent, and (c) a synthetic polymeric binder.
Claim 18
Dependent Claim
58 words
A heat developable, photographic element comprising a support having thereon, in reactive association, (a) a photosensitive arene chromiumtricarbonyl, (b) an oxidation-reduction image-forming combination comprising (i) an organotellurium compound as an oxidizing agent consisting essentially of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , with (ii) a benzenesulfonamidophenol reducing agent, and (c) a synthetic polymeric binder.
Claim 19
Dependent Claim
59 words
A heat developable, photographic composition comprising (a) a photosensitive, transition metal carbonyl compound, wherein said transition metal in selected from transition elements in groups Vb, VIb, VIIb and VIII of the Periodic Table (b) an oxidation-reduction image-forming combination comprising: (i) an organotellurium (II) or (IV) compound as an oxidizing agent, with (ii) a reducing agent, and (c) a binder.
Claim 20
Dependent Claim
59 words
A heat developable, photographic composition comprising (a) a photosensitive, transition metal carbonyl compound, wherein said transition metal in selected from transition elements in groups Vb, VIb, VIIb and VIII of the Periodic Table (b) an oxidation-reduction image-forming combination comprising: (i) an organotellurium (II) or (IV) compound as an oxidizing agent, with (ii) a reducing agent, and (c) a binder.
Claim 21
Dependent Claim
62 words
A heat developable, photographic composition as in claim 16 wherein said photosensitive, transition metal carbonyl compound is represented by the formula: RM(CO).sub.n X.sub.m wherein R is an arene, a substituted arene, a cyclopentadienyl ligand or an acetonitrile ligand; M is Cr, Mo or Fe; X is alkyl, chlorine, bromine or iodine; n is 3 to 5; and, m is 0 or 1.
Claim 22
Dependent Claim
21 words
A heat developable, photographic composition as in claim 16 wherein said photosensitive, transition metal carbonyl compound is an arene chromiumtricarbonyl compound.
Claim 23
Dependent Claim
26 words
A heat developable, photographic composition as in claim 16 wherein said photosensitive, transition metal carbonyl compound consists essentially of tetralin chromiumtricarbonyl, benzene chromiumtricarbonyl or mesitylene chromiumtricarbonyl.
Claim 24
Dependent Claim
20 words
A heat developable, photographic composition as in claim 16 wherein said organotellurium compound is a coordination complex of tellurium (II).
Claim 25
Dependent Claim
26 words
A heat developable, photographic composition as in claim 16 wherein said organotellurium compound is a coordination complex of tellurium (II) with two univalent bidentate sulfur-containing compounds.
Claim 26
Dependent Claim
66 words
A heat developable, photographic composition as in claim 16 wherein said organotellurium compound is a complex selected from the group consisting of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , Te(S 2 CN(C 2 H 5 ) 2 ) 4 , Te S 2 CN(C 6 H 5 ) 2 ! 2 , and Te(S 2 COC 12 H 25 ) 2 .
Claim 27
Dependent Claim
25 words
A heat developable, photographic composition as in claim 16 wherein said reducing agent is selected from the group consisting of 3-pyrazolidone and phenolic developing agents.
Claim 28
Dependent Claim
18 words
A heat developable, photographic composition as in claim 16 wherein said reducing agent is a benzenesulfonamidophenol developing agent.
Claim 29
Dependent Claim
17 words
A heat developable, photographic composition as in claim 16 wherein said reducing agent consists essentially of 2,6-dichlorobenzenesulfonamidophenol.
Claim 30
Dependent Claim
17 words
A heat developable, photographic composition as in claim 16 wherein said binder is a synthetic polymeric binder.
Claim 31
Dependent Claim
48 words
A heat developable, photographic composition as in claim 16 wherein said binder is a synthetic polymeric binder selected from the group consisting of (A) poly(methyl acrylate-co-vinylidene chloride-co-itaconic acid), (B) poly(methyl acrylate-co-acrylonitrile-co-vinylidene chloride-co-acrylic acid), (C) poly(acrylonitrile-co-vinylidene chloride), (D) poly(vinyl acetate-co-vinyl alcohol-co-vinyl acetal), (E) poly(vinyl butyral), and (F) polycarbonate binders.
Claim 32
Dependent Claim
41 words
A heat developable, photographic composition as in claim 16 comprising for each mole of said photosensitive, transition metal carbonyl compound, 0.1 to 10 3 moles of said tellurium complex and 0.1 to 4 × 10 3 moles of said reducing agent.
Claim 33
Dependent Claim
50 words
A heat developable, photographic composition comprising (a) photosensitive arene chromiumtricarbonyl, (b) an oxidation-reduction image-forming combination comprising (i) an organotellurium compound as an oxidizing agent consisting essentially of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , with (ii) a 3-pyrazolidone developing agent, and (c) a synthetic polymeric binder.
Claim 34
Dependent Claim
50 words
A heat developable, photographic composition comprising (a) photosensitive arene chromiumtricarbonyl, (b) an oxidation-reduction image-forming combination comprising (i) an organotellurium compound as an oxidizing agent consisting essentially of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , with (ii) a 3-pyrazolidone developing agent, and (c) a synthetic polymeric binder.
Claim 35
Dependent Claim
51 words
A heat developable, photographic composition comprising (a) a photosensitive arene chromiumtricarbonyl, (b) an oxidation-reduction image-forming combination comprising (i) an organotellurium compound as an oxidizing agent consisting essentially of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , with (ii) a benzenesulfonamidophenol reducing agent, and (c) a synthetic polymeric binder.
Claim 36
Dependent Claim
51 words
A heat developable, photographic composition comprising (a) a photosensitive arene chromiumtricarbonyl, (b) an oxidation-reduction image-forming combination comprising (i) an organotellurium compound as an oxidizing agent consisting essentially of Te(S 2 CN(C 2 H 5 ) 2 ) 2 , with (ii) a benzenesulfonamidophenol reducing agent, and (c) a synthetic polymeric binder.
Claim 37
Dependent Claim
42 words
A process of developing a latent image in an exposed heat developable, photographic element as defined in claim 1 comprising heating said element to a temperature within the range of about 80° to about 250° C until the latent image is developed.
Claim 38
Dependent Claim
39 words
A process of developing a latent image in an exposed heat developable, photographic element as defined in claim 14 comprising heating said element to a temperature of about 80° to about 250° C until the latent image is developed.
Claim 39
Dependent Claim
39 words
A process of developing a latent image in an exposed heat developable, photographic element as defined in claim 15 comprising heating said element to a temperature of about 80° to about 250° C until the latent image is developed.
References Cited (Backward Citations)
US3152903A
Cited
US3445230A
Cited
US3765883A
Cited
GB1405628A
Cited
GB1463816A
Cited
JPS51135540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |