US4021240A
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Photothermographic and thermographic compositions and uses therefor containing sulfonamidophenol reducing agents and four equivalent color couplers
Assignee: Eastman Kodak Co
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Filing: 1975-12-22
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Granted: 1977-05-03
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Expires: 1995-12-22
Abstract
Abstract In a photothermographic element, composition or process for producing developed images employing processing with heat, a combination comprising (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) a silver salt oxidizing agent and (ii) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-sulfonamidophenol such as the corresponding benzenesulfonamidophenol, and (c) a four equivalent color-forming coupler, and (d) a polymeric binder, provides an image in color. After imagewise exposure of the photothermographic element or composition, a color image can be developed by heating the photothermographic element or composition containing this combination. The combination can be in a diffusion transfer, photothermographic element.
Inventors
- 👤 Felice Mary Cerquone
- 👤 Rolf Steven Gabrielsen
- 👤 Roland George Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:18
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
73 words
A photothermographic element capable of producing a colored image upon exposure to a colored object and subsequent exposure to an elevated temperature above about 100° C., said photothermographic element comprising a support having coated thereon a polymeric binder layer containing photographic silver halide and, in association therewith (a) a non light sensitive organic silver salt oxidizing agent, (b) a four equivalent color-forming coupler, and (c) a 2,6-dichloro- or 2,6-dibromo-4-substituted sulfonamido phenol reducing agent.
Claim 2
Dependent Claim
73 words
A photothermographic element capable of producing a colored image upon exposure to a colored object and subsequent exposure to an elevated temperature above about 100° C., said photothermographic element comprising a support having coated thereon a polymeric binder layer containing photographic silver halide and, in association therewith (a) a non light sensitive organic silver salt oxidizing agent, (b) a four equivalent color-forming coupler, and (c) a 2,6-dichloro- or 2,6-dibromo-4-substituted sulfonamido phenol reducing agent.
Claim 3
Dependent Claim
57 words
A color photothermographic element as in claim 1, wherein said 2,6-dichloro- or 2,6-dibromo-4-substituted sulfonamidophenol reducing agent has the structure ##STR15## wherein X is Cl or Br and R is an alkyl, a substituted alkyl, an aryl, a substituted aryl, a substituted amino, or a heterocyclic group which does not adversely affect the sensitometric properties of said element.
Claim 4
Dependent Claim
16 words
A color photothermographic element as in claim 2, wherein R in said reducing agent is aryl.
Claim 5
Dependent Claim
18 words
A color photothermographic element as in claim 2, wherein said reducing agent is 2,6-dichloro-4-benzenesulfonamido phenol or 2,6-dibromo-4-benzenesulfonamido phenol.
Claim 6
Dependent Claim
17 words
A color photothermographic element as in claim 2, wherein said color-forming coupler is a pyrazole triazole coupler.
Claim 7
Dependent Claim
16 words
A color photothermographic element as in claim 2, wherein said color-forming coupler is a pyrazolone coupler.
Claim 8
Dependent Claim
16 words
A color photothermographic element as in claim 2, wherein said color-forming coupler is a phenolic coupler.
Claim 9
Dependent Claim
16 words
A color photothermographic element as in claim 1, wherein said element also contains a development modifier.
Claim 10
Dependent Claim
16 words
A color photothermographic element as in claim 8, wherein said development modifier is 1-(2H)-phthalazinone or succinimide.
Claim 11
Dependent Claim
29 words
A color photothermographic element as in claim 1, wherein said silver salt oxidizing agent is a silver salt of a fatty acid containing from 10 to 30 carbon atoms.
Claim 12
Dependent Claim
46 words
A photothermographic element for producing a developed color image comprising a support having coated thereon (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) 2,6-dichloro-4-benzenesulfonamidophenol, and (ii) silver behenate (c) a four equivalent, color-forming coupler, and (d) a poly(vinyl butyral) binder.
Claim 13
Dependent Claim
46 words
A photothermographic element for producing a developed color image comprising a support having coated thereon (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) 2,6-dichloro-4-benzenesulfonamidophenol, and (ii) silver behenate (c) a four equivalent, color-forming coupler, and (d) a poly(vinyl butyral) binder.
Claim 14
Dependent Claim
112 words
A photothermographic element for producing a developed, color image comprising a support having coated thereon (a) from about 10 - 4 to about 10 - 2 moles of photographic silver halide per square meter of support in association with (b) an oxidation-reduction image-forming combination comprising (i) from about 0.25 to about 5 moles of 2,6-dichloro or 2,6-dibromo-4-benzenesulfonamidophenol reducing agent per mole of said silver halide with (ii) from about 0.25to about 5moles of a non light sensitive organic silver salt oxidizing agent per mole of said silver halide, (c) from about 0.25 to about 5 moles of four equivalent, color-forming coupler per mole of said reducing agent, and (d) a polymeric binder.
Claim 15
Dependent Claim
112 words
A photothermographic element for producing a developed, color image comprising a support having coated thereon (a) from about 10 - 4 to about 10 - 2 moles of photographic silver halide per square meter of support in association with (b) an oxidation-reduction image-forming combination comprising (i) from about 0.25 to about 5 moles of 2,6-dichloro or 2,6-dibromo-4-benzenesulfonamidophenol reducing agent per mole of said silver halide with (ii) from about 0.25to about 5moles of a non light sensitive organic silver salt oxidizing agent per mole of said silver halide, (c) from about 0.25 to about 5 moles of four equivalent, color-forming coupler per mole of said reducing agent, and (d) a polymeric binder.
Claim 16
Dependent Claim
94 words
A photothermographic element for producing a developed, color image comprising a support having coated thereon (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) silver behenate and (ii) 2,6-dichloro-4-benzenesulfonamidophenol and (c) a four equivalent, color-forming coupler which is a compound selected from the group consisting of (i) 2-anilino-4-phenylthiazole, (ii) o-acetoacetanisidide, (iii) 3-(gamma-p-nitrophenylpropyl)-6-methyl-1H-pyrazolo-[3,2-C]-S-triazole, (iv) a pyrazolone compound represented by the formula: ##STR16## (v) a compound represented by the formula: ##STR17## (vi) 5-[alpha-(2,4-di-tertamylphenoxy)-hexanamido]-2-heptafluorobutyramidophenol, and combinations thereof, (d) a development modifier which is 1-(2H)-phthalazinone or succinimide, and (e) a poly(vinyl butyral) binder.
Claim 17
Dependent Claim
94 words
A photothermographic element for producing a developed, color image comprising a support having coated thereon (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) silver behenate and (ii) 2,6-dichloro-4-benzenesulfonamidophenol and (c) a four equivalent, color-forming coupler which is a compound selected from the group consisting of (i) 2-anilino-4-phenylthiazole, (ii) o-acetoacetanisidide, (iii) 3-(gamma-p-nitrophenylpropyl)-6-methyl-1H-pyrazolo-[3,2-C]-S-triazole, (iv) a pyrazolone compound represented by the formula: ##STR16## (v) a compound represented by the formula: ##STR17## (vi) 5-[alpha-(2,4-di-tertamylphenoxy)-hexanamido]-2-heptafluorobutyramidophenol, and combinations thereof, (d) a development modifier which is 1-(2H)-phthalazinone or succinimide, and (e) a poly(vinyl butyral) binder.
Claim 18
Dependent Claim
86 words
A diffusion transfer, photothermographic element for producing a developed, color image comprising, in sequence, a support having coated thereon (A) a layer I comprising (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) a non light sensitive organic silver salt oxidizing agent with (ii) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-substituted sulfonamidophenol, (c) a four equivalent, color-forming coupler, and (d) a polymeric binder, and (B) an image receiving layer II capable of receiving a dye from said layer I.
Claim 19
Dependent Claim
86 words
A diffusion transfer, photothermographic element for producing a developed, color image comprising, in sequence, a support having coated thereon (A) a layer I comprising (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) a non light sensitive organic silver salt oxidizing agent with (ii) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-substituted sulfonamidophenol, (c) a four equivalent, color-forming coupler, and (d) a polymeric binder, and (B) an image receiving layer II capable of receiving a dye from said layer I.
Claim 20
Dependent Claim
26 words
A diffusion transfer, photothermographic element as in claim 14 wherein said image receiving layer II comprises a mordant for a dye image from said layer I.
Claim 21
Dependent Claim
29 words
A diffusion transfer, photothermographic element as in claim 14 wherein said silver salt oxidizing agent is a silver salt of a fatty acid containing 10 to 30 carbon atoms.
Claim 22
Dependent Claim
20 words
A diffusion transfer, photothermographic element as in claim 14 wherein said image receiving layer II is removable from said element.
Claim 23
Dependent Claim
77 words
An integral diffusion transfer, photothermographic element comprising, in sequence, (a) a transparent support having coated thereon (b) a dye mordant layer, (c) an opacifying layer and (d) a photothermographic layer comprising (i) photographic silver halide in association with (ii) an oxidation-reduction image-forming combination comprising (1) a non light sensitive organic silver salt oxidizing agent and (2) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-substituted sulfonamidophenol (iii) a four equivalent, color-forming coupler, and (iv) a polymeric binder.
Claim 24
Dependent Claim
77 words
An integral diffusion transfer, photothermographic element comprising, in sequence, (a) a transparent support having coated thereon (b) a dye mordant layer, (c) an opacifying layer and (d) a photothermographic layer comprising (i) photographic silver halide in association with (ii) an oxidation-reduction image-forming combination comprising (1) a non light sensitive organic silver salt oxidizing agent and (2) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-substituted sulfonamidophenol (iii) a four equivalent, color-forming coupler, and (iv) a polymeric binder.
Claim 25
Dependent Claim
86 words
An intergral diffusion transfer, photothermographic element comprising, in sequence, (a) a transparent support having coated thereon (b) a dye mordant layer comprising a polymeric quaternary ammonium salt, (c) an opacifying titanium dioxide layer, (d) a photothermographic layer comprising (i) photographic silver halide in association with (ii) an oxidation-reduction image-forming combination comprising (1) silver behenate and (2) 2,6-dichloro-4-benzenesulfonamidophenol or 2,6-dibromo-4-benzenesulfonamidophenol, (iii) a development modifier which is 1-(2H)-phthalazinone or succinimide, (iv) a four equivalent, color-forming coupler, and (v) a poly(vinyl butyral) binder, and (e) a transparent overcoat layer.
Claim 26
Dependent Claim
86 words
An intergral diffusion transfer, photothermographic element comprising, in sequence, (a) a transparent support having coated thereon (b) a dye mordant layer comprising a polymeric quaternary ammonium salt, (c) an opacifying titanium dioxide layer, (d) a photothermographic layer comprising (i) photographic silver halide in association with (ii) an oxidation-reduction image-forming combination comprising (1) silver behenate and (2) 2,6-dichloro-4-benzenesulfonamidophenol or 2,6-dibromo-4-benzenesulfonamidophenol, (iii) a development modifier which is 1-(2H)-phthalazinone or succinimide, (iv) a four equivalent, color-forming coupler, and (v) a poly(vinyl butyral) binder, and (e) a transparent overcoat layer.
Claim 27
Dependent Claim
85 words
A photothermographic composition comprising (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) silver behenate and (ii) 2,6-dichloro or 2,6-dibromo-4-benzenesulfonamidophenol, (c) a four equivalent, color-forming coupler which is a compound selected from the group consisting of (i) 2-anilino-4-phenylthiazole, (ii) o-acetoacetanisidide, (iii) 3-(gamma-p-nitrophenylpropyl)-6-methyl-1H-pyrazolo-[3,2-C]-S-triazole, (iv) a pyrazolone compound represented by the formula: ##STR18## (v) a compound represented by the formula: ##STR19## (vi) 5-[alpha-(2,4-di-tertamylphenoxy)-hexanamido]-2-heptafluorobutyramidophenol, and combinations thereof, and (d) a development modifier which is 1-(2H)-phalazinone or succinimide, and (e) a poly(vinyl butyral) binder.
Claim 28
Dependent Claim
85 words
A photothermographic composition comprising (a) photographic silver halide in association with (b) an oxidation-reduction image-forming combination comprising (i) silver behenate and (ii) 2,6-dichloro or 2,6-dibromo-4-benzenesulfonamidophenol, (c) a four equivalent, color-forming coupler which is a compound selected from the group consisting of (i) 2-anilino-4-phenylthiazole, (ii) o-acetoacetanisidide, (iii) 3-(gamma-p-nitrophenylpropyl)-6-methyl-1H-pyrazolo-[3,2-C]-S-triazole, (iv) a pyrazolone compound represented by the formula: ##STR18## (v) a compound represented by the formula: ##STR19## (vi) 5-[alpha-(2,4-di-tertamylphenoxy)-hexanamido]-2-heptafluorobutyramidophenol, and combinations thereof, and (d) a development modifier which is 1-(2H)-phalazinone or succinimide, and (e) a poly(vinyl butyral) binder.
Claim 29
Dependent Claim
105 words
A photothermographic composition comprising (a) photographic silver bromoiodide in association with (b) an oxidation-reduction image-forming combination comprising (i) from about 0.25 to about 5 moles of a non light senstive organic silver salt oxidizing agent per mole of said silver bromoiodide, and (ii) from about 0.25 to about 5 moles of 2,6-dichloro or 2,6-dibromo-4-benzenesulfonamidophenol reducing agent per mole of said silver bromoiodide and (c) from about 0.25 to about 5 moles of four equivalent color-forming coupler per mole of reducing agent, (d) from about 0.01 to about 0.25 moles of development modifier per mole of said silver salt oxidizing agent, and (e) a polymeric binder.
Claim 30
Dependent Claim
105 words
A photothermographic composition comprising (a) photographic silver bromoiodide in association with (b) an oxidation-reduction image-forming combination comprising (i) from about 0.25 to about 5 moles of a non light senstive organic silver salt oxidizing agent per mole of said silver bromoiodide, and (ii) from about 0.25 to about 5 moles of 2,6-dichloro or 2,6-dibromo-4-benzenesulfonamidophenol reducing agent per mole of said silver bromoiodide and (c) from about 0.25 to about 5 moles of four equivalent color-forming coupler per mole of reducing agent, (d) from about 0.01 to about 0.25 moles of development modifier per mole of said silver salt oxidizing agent, and (e) a polymeric binder.
Claim 31
Dependent Claim
51 words
A thermographic element for producing a color image comprising a support having coated thereon (a) an oxidation-reduction image-forming combination comprising (i) a non light sensitive organic silver salt oxidizing agent, (ii) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-sulfonamidophenol, (b) a four equivalent, color-forming coupler, and (c) a polymeric binder.
Claim 32
Dependent Claim
51 words
A thermographic element for producing a color image comprising a support having coated thereon (a) an oxidation-reduction image-forming combination comprising (i) a non light sensitive organic silver salt oxidizing agent, (ii) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-sulfonamidophenol, (b) a four equivalent, color-forming coupler, and (c) a polymeric binder.
Claim 33
Dependent Claim
34 words
A thermographic element as in claim 22 wherein said color-forming coupler is selected from the group consisting of (a) active ketomethylene, dye-forming couplers, (b) heterocyclic, dye-forming couplers, (c) phenolic, dye-forming couplers, and combinations thereof.
Claim 34
Dependent Claim
29 words
A thermographic element as in claim 23 wherein said color-forming coupler is a heterocyclic dye-forming coupler selected from the group consisting of pyrazole-triazole dye-forming couplers and pyrazolone dye-forming couplers.
Claim 35
Dependent Claim
12 words
A thermographic element as in claim 22 also comprising a development modifier.
Claim 36
Dependent Claim
43 words
A thermographic element comprising a support having coated thereon (a) an oxidation-reduction image-forming combination comprising (i) silver behenate and (ii) 2,6-dichloro-4-benzenesulfonamidophenol, and (b) a four equivalent, color-forming coupler, (c) a development modifier which is 1-(2H)-phthalazinone or succinimide, and (d) a poly(vinyl butyral) binder.
Claim 37
Dependent Claim
43 words
A thermographic element comprising a support having coated thereon (a) an oxidation-reduction image-forming combination comprising (i) silver behenate and (ii) 2,6-dichloro-4-benzenesulfonamidophenol, and (b) a four equivalent, color-forming coupler, (c) a development modifier which is 1-(2H)-phthalazinone or succinimide, and (d) a poly(vinyl butyral) binder.
Claim 38
Dependent Claim
43 words
A thermographic composition comprising (a) an oxidation-reduction image-forming combination comprising (i) a non light sensitive organic silver salt oxidizing agent, and (ii) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-substituted sulfonamidophenol, (b) a four equivalent, color-forming coupler, and (c) a polymeric binder.
Claim 39
Dependent Claim
43 words
A thermographic composition comprising (a) an oxidation-reduction image-forming combination comprising (i) a non light sensitive organic silver salt oxidizing agent, and (ii) a reducing agent which is a 2,6-dichloro or 2,6-dibromo-4-substituted sulfonamidophenol, (b) a four equivalent, color-forming coupler, and (c) a polymeric binder.
Claim 40
Dependent Claim
51 words
A thermographic composition comprising (a) an oxidation-reduction image-forming combination comprising (i) silver behenate and (ii) 2,6-dichloro or 2,6-dibromo-4-benzenesulfonamidophenol, (b) a four equivalent color-forming coupler which is selected from the group consisting of (i) active ketomethylene, dye-forming couplers, (ii) heterocyclic, dye-forming couplers, (iii) phenolic, dye-forming couplers, and (c) a poly(vinyl butyral) binder.
Claim 41
Dependent Claim
51 words
A thermographic composition comprising (a) an oxidation-reduction image-forming combination comprising (i) silver behenate and (ii) 2,6-dichloro or 2,6-dibromo-4-benzenesulfonamidophenol, (b) a four equivalent color-forming coupler which is selected from the group consisting of (i) active ketomethylene, dye-forming couplers, (ii) heterocyclic, dye-forming couplers, (iii) phenolic, dye-forming couplers, and (c) a poly(vinyl butyral) binder.
Claim 42
Dependent Claim
29 words
A thermographic element as in claim 27 wherein said color-forming coupler is a heterocyclic dye-forming coupler selected from the group consisting of pyrazole-triazole dye-forming couplers and pyrazolone dye-forming couplers.
Claim 43
Dependent Claim
45 words
A process of providing a dye image in the photothermographic element described in claim 1 comprising imagewise exposing said element to actinic radiation to which it is sensitive and thereafter heating said element to a temperature of from about 80° C. to about 250° C.
Claim 44
Dependent Claim
33 words
A process as in claim 30 which comprises heating the imagewise exposed element to a temperature of from about 80° C. to about 250° C. for from about 0.5 to about 60 seconds.
Claim 45
Dependent Claim
56 words
A process of providing a dye image in an exposed, diffusion transfer, photothermographic element as described in claim 14 comprising heating said exposed element to a temperature of about 80° C. to about 250° C. and providing a solvent to aid in the transfer of dye from said layer I to said image receiving layer II.
Claim 46
Dependent Claim
31 words
A process as in claim 32 comprising heating said exposed element to a temperature of from about 80° C. to about 250° C. for from about 0.5 to about 60 seconds.
References Cited (Backward Citations)
GB790811A
Cited
US3392020A
Cited
US3152094A
Cited
US3094417A
Cited
US3457075A
Cited
US3301678A
Cited
GB1131108A
Cited
GB1161777A
Cited
US3531286A
Cited
US3592652A
Cited
US3592650A
Cited
US3751249A
Cited
US3737316A
Cited
US3761270A
Cited
US3796574A
Cited
US3801321A
Cited
US3813244A
Cited
GB1398220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |