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US4426441A
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Dye-forming developers in an imaging material and process
Assignee: Eastman Kodak Co
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Filing: 1982-12-03
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Granted: 1984-01-17
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Expires: 2002-12-03
Abstract
Abstract In a dye-forming imaging material comprising (a) a dye-forming coupler, and (b) an organic reducing agent that is capable in its oxidized form of reacting with the dye-forming coupler to form a dye, improvements are provided by a reducing agent that is a ureidoaniline silver halide developing agent free of strong electron withdrawing groups. Such an imaging material can be a photographic silver halide material. The imaging material can be a photothermographic material for producing a dye image comprising, in reactive association, (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent, and (2) an organic reducing agent for the organic silver salt oxidizing agent, wherein the reducing agent is a ureidoaniline which is capable in its oxidized form of reacting with the dye-forming coupler to form a dye. A thermographic material comprises the same combination of components without the need for photographic silver halide. A silver image and dye image are produced in such an exposed photothermographic material by heating the material until the silver image and dye image are produced. An image in a thermographic material is produced by imagewise heating the material. Ureidoaniline silver halide developing agents are also useful in processing compositions for photographic silver halide materials.
Inventors
- 👤 Anthony Adin
- 👤 Roy C. DeSelms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:22
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/407; G03C7/413; G03C7/4136; G03C1/00; G03C1/494; G03C1/498; G03C1/49827; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 68
Claim 1
Independent Claim
58 words
In a dye-forming imaging element comprising a support bearing, in reactive association, (a) a dye-forming coupler, and (b) an organic reducing agent that is capable in its oxidized form of reacting with the dye-forming coupler to form a dye, the improvement wherein said reducing agent is a ureidoaniline silver halide developing agent free of strong electron withdrawing groups.
Claim 2
Dependent Claim
58 words
In a dye-forming imaging element comprising a support bearing, in reactive association, (a) a dye-forming coupler, and (b) an organic reducing agent that is capable in its oxidized form of reacting with the dye-forming coupler to form a dye, the improvement wherein said reducing agent is a ureidoaniline silver halide developing agent free of strong electron withdrawing groups.
Claim 3
Dependent Claim
127 words
A dye-forming imaging element as in claim 1 wherein said ureidoaniline reducing agent is represented by the formula: ##STR65## wherein Z is the atoms necessary to complete an aniline silver halide developing agent; R 1 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 2 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, R 2 is hydrogen, alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 1 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group.
Claim 4
Dependent Claim
50 words
A dye-forming imaging element as in claim 2 wherein R 1 is ##STR66## R 3 is alkyl containing 1 to 25 carbon atoms or aryl containing 6 to 25 carbon atoms; and, R 4 is alkylene containing 1 to 25 carbon atoms or arylene containing 6 to 25 carbon atoms.
Claim 5
Dependent Claim
223 words
A dye-forming imaging element as in claim 1 wherein said ureidoaniline silver halide developing agent is represented by the formula: ##STR67## wherein R 5 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 6 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 6 is hydrogen, alkyl containing 1 to 25 carbon atoms, or aryl containing 6 to 25 carbon atoms or with R 5 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 7 is alkyl containing 1 to 25 carbon atoms or with R 8 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms, necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 8 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 5 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, X is hydrogen, alkyl containing 1 to 3 carbon atoms, alkoxy containing 1 to 3 carbon atoms, bromine, chlorine or iodine.
Claim 6
Dependent Claim
59 words
A dye-forming imaging element as in claim 4 wherein R 5 is ##STR68## wherein R 3 is alkyl containing 1 to 25 carbon atoms or aryl containing 6 to 25 carbon atoms; and R 4 is alkylene containing 1 to 25 carbon atoms or arylene containing 6 to 25 carbon atoms or arylene containing 6 to 25 carbon atoms.
Claim 7
Dependent Claim
19 words
A dye-forming imaging element as in claim 1 wherein said ureidoaniline silver halide developing agent consists essentially of 1-(p-diethylaminophenyl)-3-t-butylurea.
Claim 8
Dependent Claim
20 words
A dye-forming imaging element as in claim 1 wherein said dye-forming coupler comprises a compound represented by the formula: ##STR69##
Claim 9
Dependent Claim
13 words
A dye-forming imaging element as in claim 1 also comprising photographic silver halide.
Claim 10
Dependent Claim
76 words
In a photothermographic element comprising a support having thereon, in reactive association: (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that is capable in its oxidized form of reacting with said dye-forming coupler to form a dye.
Claim 11
Dependent Claim
76 words
In a photothermographic element comprising a support having thereon, in reactive association: (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that is capable in its oxidized form of reacting with said dye-forming coupler to form a dye.
Claim 12
Dependent Claim
126 words
A photothermographic element as in claim 9 wherein said ureidoaniline reducing agent is represented by the formula: ##STR70## wherein Z is the atoms necessary to complete an aniline silver halide developing agent; R 1 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 2 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, R 2 is hydrogen, alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 1 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group.
Claim 13
Dependent Claim
50 words
A photothermographic element as in claim 10 wherein R 1 is ##STR71## wherein R 3 is alkyl containing 1 to 25 carbon atoms or aryl containing 6 to 25 carbon atoms; and, R 4 is alkylene containing 1 to 25 carbon atoms or arylene containing 6 to 25 carbon atoms.
Claim 14
Dependent Claim
213 words
A photothermographic element as in claim 10 wherein said ureidoaniline reducing agent is represented by the formula: ##STR72## wherein R 5 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 6 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 to 6 member nonaromatic heterocyclic group; R 6 is hydrogen, alkyl containing 1 to 25 carbon atoms, or aryl containing 6 to 25 carbon atoms or with R 5 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member heterocyclic group; R 7 is alkyl containing 1 to 25 carbon atoms, or with R 8 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms, necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 8 is alkyl containing 1 to 25 carbon atoms or with R 7 is the atoms selected from the group consisting of carbon, hydrogen, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, X is hydrogen, alkyl containing 1 to 3 carbon atoms, alkoxy containing 1 to 3 carbon atoms, bromine, chlorine or iodine.
Claim 15
Dependent Claim
50 words
A photothermographic element as in claim 12 wherein R 1 is ##STR73## wherein R 3 is alkyl containing 1 to 25 carbon atoms or aryl containing 6 to 25 carbon atoms; and, R 4 is alkylene containing 1 to 25 carbon atoms or arylene containing 6 to 25 carbon atoms.
Claim 16
Dependent Claim
16 words
A photothermographic element as in claim 9 wherein said ureidoaniline reducing agent consists essentially of 1-(p-diethylaminophenyl)-3-t-butylurea.
Claim 17
Dependent Claim
12 words
A photothermographic element as in claim 9 also comprising a toning agent.
Claim 18
Dependent Claim
29 words
A photothermographic element as in claim 9 also comprising a toning agent selected from the group consisting of phthalazinone, phthalimide, N-hydroxynaphthalimide, phthalazine and succinimide toning agents and combinations thereof.
Claim 19
Dependent Claim
11 words
A photothermographic element as in claim 9 also comprising a binder.
Claim 20
Dependent Claim
13 words
A photothermographic element as in claim 9 also comprising a poly(vinyl butyral) binder.
Claim 21
Dependent Claim
71 words
In a photothermographic element comprising a support having thereon, in reactive association, in a poly(vinylbutyral) binder: (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent comprising silver behenate, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that consists essentially of 1-(p-diethylaminophenyl)-3-t-butylurea.
Claim 22
Dependent Claim
71 words
In a photothermographic element comprising a support having thereon, in reactive association, in a poly(vinylbutyral) binder: (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent comprising silver behenate, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that consists essentially of 1-(p-diethylaminophenyl)-3-t-butylurea.
Claim 23
Dependent Claim
19 words
A photothermographic element as in claim 19 wherein said dye-forming coupler comprises a compound represented by the formula: ##STR74##
Claim 24
Dependent Claim
52 words
In a dye-forming imaging composition comprising (a) a dye-forming coupler, and (b) an organic reducing agent that is capable in its oxidized form of reacting with the dye-forming coupler to form a dye, the improvement wherein said reducing agent is a ureidoaniline silver halide developing agent free of strong electron withdrawing groups.
Claim 25
Dependent Claim
52 words
In a dye-forming imaging composition comprising (a) a dye-forming coupler, and (b) an organic reducing agent that is capable in its oxidized form of reacting with the dye-forming coupler to form a dye, the improvement wherein said reducing agent is a ureidoaniline silver halide developing agent free of strong electron withdrawing groups.
Claim 26
Dependent Claim
129 words
A dye-forming imaging composition as in claim 21 wherein said ureidoaniline silver halide developing agent is represented by the formula: ##STR75## wherein Z is the atoms necessary to complete an aniline silver halide developing agent; R 1 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 2 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, R 2 is hydrogen, alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 1 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group.
Claim 27
Dependent Claim
51 words
A dye-forming imaging composition as in claim 22 wherein R 1 is ##STR76## wherein R 3 is alkyl containing 1 to 25 carbon atoms or aryl containing 6 to 25 carbon atoms; and, R 4 is alkylene containing 1 to 25 carbon atoms or arylene containing 6 to 25 carbon atoms.
Claim 28
Dependent Claim
223 words
A dye-forming imaging composition as in claim 21 wherein said ureidoaniline silver halide developing agent is represented by the formula: ##STR77## wherein R 5 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 6 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 6 is hydrogen, alkyl containing 1 to 25 carbon atoms, or aryl containing 6 to 25 carbon atoms or with R 5 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 7 is alkyl containing 1 to 25 carbon atoms or with R 8 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms, necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 8 is alkyl containing 1 to 25 carbon atoms aryl containing 6 to 25 carbon atoms, or with R 7 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, X is hydrogen, alkyl containing 1 to 3 carbon atoms, alkoxy containing 1 to 3 carbon atoms, bromine, chlorine or iodine.
Claim 29
Dependent Claim
51 words
A dye-forming imaging composition as in claim 24 wherein R 5 is ##STR78## wherein R 3 is alkyl containing 1 to 25 carbon atoms or aryl containing 6 to 25 carbon atoms; and, R 4 is alkylene containing 1 to 25 carbon atoms or arylene containing 6 to 25 carbon atoms.
Claim 30
Dependent Claim
19 words
A dye-forming imaging composition as in claim 21 wherein said ureidoaniline silver halide developing agent consists essentially of 1-(p-diethylaminophenyl)-3-t-butylurea.
Claim 31
Dependent Claim
12 words
A dye-forming imaging composition as in claim 21 also comprising a binder.
Claim 32
Dependent Claim
20 words
A dye-forming imaging composition as in claim 21 wherein said dye-forming coupler comprises a compound represented by the formula: ##STR79##
Claim 33
Dependent Claim
69 words
In a photothermographic composition comprising: (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that is capable in its oxidized form of reacting with said dye-forming coupler to form a dye.
Claim 34
Dependent Claim
69 words
In a photothermographic composition comprising: (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that is capable in its oxidized form of reacting with said dye-forming coupler to form a dye.
Claim 35
Dependent Claim
126 words
A photothermographic composition as in claim 29 wherein said ureidoaniline reducing agent is represented by the formula: ##STR80## wherein Z is the atoms necessary to complete an aniline silver halide developing agent; R 1 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 2 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, R 2 is hydrogen, alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 1 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group.
Claim 36
Dependent Claim
50 words
A photothermographic composition as in claim 30 wherein R 1 is ##STR81## wherein R 3 is alkyl containing 1 to 25 carbon atoms or aryl containing 6 to 25 carbon atoms; and, R 4 is alkylene containing 1 to 25 carbon atoms or arylene containing 6 to 25 carbon atoms.
Claim 37
Dependent Claim
213 words
A photothermographic composition as in claim 29 wherein said ureidoaniline reducing agent is represented by the formula: ##STR82## wherein R 5 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 6 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 to 6 member nonaromatic heterocyclic group; R 6 is hydrogen, alkyl containing 1 to 25 carbon atoms, or aryl containing 6 to 25 carbon atoms or with R 5 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 7 is alkyl containing 1 to 25 carbon atoms or with R 8 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms, necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 8 is alkyl containing 1 to 25 carbon atoms or with R 7 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, X is hydrogen, alkyl containing 1 to 3 carbon atoms, alkoxy containing 1 to 3 carbon atoms, bromine, chlorine or iodine.
Claim 38
Dependent Claim
16 words
A photothermographic composition as in claim 29 wherein said ureidoaniline reducing agent consists essentially of 1-(p-diethyaminophenyl)-3-t-butylurea.
Claim 39
Dependent Claim
12 words
A photothermographic composition as in claim 29 also comprising a toning agent.
Claim 40
Dependent Claim
29 words
A photothermographic composition as in claim 29 also comprising a toning agent selected from the group consisting of phthalazinone, phthalimide, N-hydroxynaphthalimide, phthalazine and succinimide toning agents and combinations thereof.
Claim 41
Dependent Claim
11 words
A photothermographic composition as in claim 29 also comprising a binder.
Claim 42
Dependent Claim
13 words
A photothermographic composition as in claim 29 also comprising a poly(vinyl butyral) binder.
Claim 43
Dependent Claim
65 words
In a photothermographic composition comprising, in a poly(vinyl butyral) binder: (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent comprising silver behenate, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that consists essentially of 1-(p-diethylaminophenyl)-3-t-butylurea.
Claim 44
Dependent Claim
65 words
In a photothermographic composition comprising, in a poly(vinyl butyral) binder: (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent comprising silver behenate, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that consists essentially of 1-(p-diethylaminophenyl)-3-t-butylurea.
Claim 45
Dependent Claim
19 words
A photothermographic composition as in claim 38 wherein said dye-forming coupler comprises a compound represented by the formula: ##STR83##
Claim 46
Dependent Claim
41 words
A process of producing a dye image in an exposed photothermographic element as defined in claim 9 comprising heating said element to a temperature within the range of about 90° C. to about 200° C. until said dye image is produced.
Claim 47
Dependent Claim
41 words
A process of producing a dye image in an exposed photothermographic element as defined in claim 19 comprising heating said element to a temperature within the range of about 90° C. to about 200° C. until said dye image is produced.
Claim 48
Dependent Claim
73 words
A thermographic element comprising a support having thereon, in reactive association, in binder: (a) a dye-forming coupler, and (b) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that is capable in its oxidized form of reacting with said dye-forming coupler to form a dye.
Claim 49
Dependent Claim
73 words
A thermographic element comprising a support having thereon, in reactive association, in binder: (a) a dye-forming coupler, and (b) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent, and (2) an organic reducing agent for said organic silver salt oxidizing agent, the improvement wherein said reducing agent is a ureidoaniline reducing agent that is capable in its oxidized form of reacting with said dye-forming coupler to form a dye.
Claim 50
Dependent Claim
227 words
A thermographic element as in claim 42 wherein said ureidoaniline reducing agent is represented by the formula: ##STR84## wherein R 1 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 2 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 to 6 member heterocyclic group; R 2 is hydrogen, alkyl containing 1 to 25 carbon atoms, or aryl containing 6 to 25 carbon atoms or with R 1 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 5 is aryl containing 6 to 25 carbon atoms, alkyl containing 1 to 25 carbon atoms, or with R 6 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms, necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 6 is hydrogen, alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 5 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, X is hydrogen, alkyl containing 1 to 3 carbon atoms, alkoxy containing 1 to 3 carbon atoms, bromine, chlorine or iodine.
Claim 51
Dependent Claim
14 words
A thermographic element as in claim 42 wherein said ureidoaniline reducing agent comprises 1-(p-diethylaminophenyl)-3-t-butylurea.
Claim 52
Dependent Claim
12 words
A thermographic element as in claim 42 also comprising a toning agent.
Claim 53
Dependent Claim
28 words
A thermographic element as in claim 42 comprising a toning agent selected from the group consisting of phthalazinone, phthalimide, N-hydroxynaphthalimide, phthalazine and succinimide toning agents and combinations thereof.
Claim 54
Dependent Claim
61 words
A thermographic element comprising a support having thereon, in reactive association, in a poly(vinyl butyral) binder: (a) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent comprising silver behenate, and (2) an organic reducing agent for said organic silver salt oxidizing agent comprising a ureidoaniline reducing agent that consists essentially of 1-(p-diethylaminophenyl)-3-t-butylurea; and, (b) a dye-forming coupler.
Claim 55
Dependent Claim
61 words
A thermographic element comprising a support having thereon, in reactive association, in a poly(vinyl butyral) binder: (a) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent comprising silver behenate, and (2) an organic reducing agent for said organic silver salt oxidizing agent comprising a ureidoaniline reducing agent that consists essentially of 1-(p-diethylaminophenyl)-3-t-butylurea; and, (b) a dye-forming coupler.
Claim 56
Dependent Claim
39 words
A process of producing an image in a thermographic element as defined in claim 42 comprising imagewise heating said element to a temperature within the range of about 90° C. to about 200° C. until said image is produced.
Claim 57
Dependent Claim
39 words
A process of producing an image in a thermographic element as defined in claim 47 comprising imagewise heating said element to a temperature within the range of about 90° C. to about 200° C. until said image is produced.
Claim 58
Dependent Claim
66 words
In a dye-forming processing solution for a photographic silver halide element, said solution comprising (a) a dye-forming coupler, (b) a silver halide developing agent that is capable in its oxidized form of reacting with the dye-forming coupler to form a dye, (c) an alkaline activator, and (d) at least one solvent, the improvement wherein said silver halide developing agent is a ureidoaniline silver halide developing agent.
Claim 59
Dependent Claim
66 words
In a dye-forming processing solution for a photographic silver halide element, said solution comprising (a) a dye-forming coupler, (b) a silver halide developing agent that is capable in its oxidized form of reacting with the dye-forming coupler to form a dye, (c) an alkaline activator, and (d) at least one solvent, the improvement wherein said silver halide developing agent is a ureidoaniline silver halide developing agent.
Claim 60
Dependent Claim
128 words
A dye-forming processing solution as in claim 50 wherein said ureidoaniline silver halide developing agent is represented by the formula: ##STR85## wherein Z is the atoms necessary to complete an aniline silver halide developing agent; R 1 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 2 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member heterocyclic group; and, R 2 is hydrogen, alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 1 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group.
Claim 61
Dependent Claim
51 words
A dye-forming processing solution as in claim 51 wherein R 1 is ##STR86## wherein R 3 is alkyl containing 1 to 25 carabon atoms or aryl containing 6 to 25 carbon atoms; and, R 4 is alkylene containing 1 to 25 carbon atoms or arylene containing 6 to 25 carbon atoms.
Claim 62
Dependent Claim
216 words
A dye-forming processing solution as in claim 50 wherein said ureidoaniline silver halide developing agent is represented by the formula: ##STR87## wherein R 5 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 6 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 to 6 member nonaromatic heterocyclic group; R 6 is hydrogen, alkyl containing 1 to 25 carbon atoms, or aryl containing 6 to 25 carbon atoms or with R 1 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 7 is alkyl containing 1 to 25 carbon atoms or with R 8 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms, necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 8 is alkyl containing 1 to 25 carbon atoms or with R 7 is the atoms selected from the group conisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, X is hydrogen, alkyl containing 1 to 3 carbon atoms, alkoxy containing 1 to 3 carbon atoms, bromine, chlorine or iodine.
Claim 63
Dependent Claim
78 words
In a method of forming a dye image in an exposed photographic element comprising a support bearing, in reactive association; (a) photographic silver halide, and (b) a dye-forming coupler, comprising developing the exposed photographic element in a silver halide developer solution, the improvement comprising, developing said exposed photographic element in a developer solution comprising an alkaline activator and a ureidoaniline silver halide developing agent which reacts in its oxidized form with the dye-forming coupler to form a dye.
Claim 64
Dependent Claim
78 words
In a method of forming a dye image in an exposed photographic element comprising a support bearing, in reactive association; (a) photographic silver halide, and (b) a dye-forming coupler, comprising developing the exposed photographic element in a silver halide developer solution, the improvement comprising, developing said exposed photographic element in a developer solution comprising an alkaline activator and a ureidoaniline silver halide developing agent which reacts in its oxidized form with the dye-forming coupler to form a dye.
Claim 65
Dependent Claim
19 words
A method of forming a dye image as in claim 54 also comprising bleaching and fixing the resulting image.
Claim 66
Dependent Claim
132 words
A method of forming a dye image as in claim 54 wherein said ureidoaniline silver halide developing agent is represented by the formula: ##STR88## wherein Z is the atoms necessary to complete an aniline silver halide developing agent, R 1 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 2 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; and, R 2 is hydrogen, alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 1 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group.
Claim 67
Dependent Claim
218 words
A method of forming a dye image as in claim 54 wherein said ureidoaniline silver halide developing agent is represented by the formula: ##STR89## wherein R 5 is alkyl containing 1 to 25 carbon atoms, aryl containing 6 to 25 carbon atoms, or with R 6 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 to 6 member nonaromatic heterocyclic group; R 6 is hydrogen, alkyl containing 1 to 25 carbon atoms, or aryl containing 6 to 25 carbon atoms or with R 5 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 7 is alkyl containing 1 to 25 carbon atoms or with R 8 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms, necessary to complete a 5 or 6 member nonaromatic heterocyclic group; R 8 is alkyl containing 1 to 25 carbon atoms or with R 7 is the atoms selected from the group consisting of carbon, nitrogen and oxygen atoms necessary to complete a 5 or 6 member nonaromatic heterocyclic group; X is hydrogen, alkyl containing 1 to 3 carbon atoms, alkoxy containing 1 to 3 carbon atoms, bromine, chlorine or iodine.
Claim 68
Dependent Claim
22 words
A method of forming a dye image as in claim 54 wherein said ureidoaniline silver halide developing agent consists essentially of 1-(p-diethylaminophenyl)-3-hydroxyethylurea.
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| 3.5 Years (Year 4) | 1987-01-16 | 1987-07-18 | 1988-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-16 | 1991-07-18 | 1992-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-16 | 1995-07-18 | 1996-01-17 | $7700.00 | Window Closed / Lapsed |