US4332889A
Expired / Lapsed
US
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Post-activation type dry image forming material
Assignee: Asahi Kasei Corp
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Filing: 1981-05-19
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Granted: 1982-06-01
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Expires: 2001-05-19
Abstract
Abstract A novel heat-activatable and heat-developable dry image forming material comprising (a) a silver salt of long chain fatty acid with at least 16 carbon atoms, (b) a reducing agent for silver ions, (c) a silver halide component including silver iodide or a silver halide-forming component including silver iodide-forming compound, (d) an oxidizing agent for free silver, (e) a photoreactive halogeno oxidizing agent, (f) a binder, and (g) a specific spectral sensitizing dye has been found to have improved spectral sensitivity as well as excellent storage stability.
Inventors
- 👤 Tetsuo Siga
- 👤 Shozo Kinoshita
- 👤 Yoshinobu Ito
- 👤 Minoru Akiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:46
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49836; G03C1/49845; G03C1/49854
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
141 words
A post-activation type dry image forming material comprising: (a) a silver salt of long chain fatty acid having 16 or more carbon atoms; (b) a reducing agent for silver ions; (c) a silver halide component including silver iodide or a silver halide-forming component capable of forming a silver halide component including silver iodide by the reaction thereof with said silver salt of long chain fatty acid (a); (d) an oxidizing agent for free silver; (e) a photoreactive halogeno oxidizing agent; (f) a binder; and (g) a spectral sensitizing dye consisting of at least one member selected from the group consisting of those compounds represented by the following formulae: ##STR14## wherein each Z independently is sulfur or selenium, Y is hydrogen or methyl, each R independently is hydrogen or chlorine, and M is hydrogen, HN(C 2 H 5 ) 3 or sodium.
Claim 2
Dependent Claim
141 words
A post-activation type dry image forming material comprising: (a) a silver salt of long chain fatty acid having 16 or more carbon atoms; (b) a reducing agent for silver ions; (c) a silver halide component including silver iodide or a silver halide-forming component capable of forming a silver halide component including silver iodide by the reaction thereof with said silver salt of long chain fatty acid (a); (d) an oxidizing agent for free silver; (e) a photoreactive halogeno oxidizing agent; (f) a binder; and (g) a spectral sensitizing dye consisting of at least one member selected from the group consisting of those compounds represented by the following formulae: ##STR14## wherein each Z independently is sulfur or selenium, Y is hydrogen or methyl, each R independently is hydrogen or chlorine, and M is hydrogen, HN(C 2 H 5 ) 3 or sodium.
Claim 3
Dependent Claim
25 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (g) comprises a compound represented by the following formula: ##STR15##
Claim 4
Dependent Claim
25 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (g) comprises a compound represented by the following formula: ##STR16##
Claim 5
Dependent Claim
25 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (g) comprises a compound represented by the following formula: ##STR17##
Claim 6
Dependent Claim
25 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (g) comprises a compound represented by the following formula: ##STR18##
Claim 7
Dependent Claim
25 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (g) comprises a compound represented by the following formula: ##STR19##
Claim 8
Dependent Claim
25 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (g) comprises a compound represented by the following formula: ##STR20##
Claim 9
Dependent Claim
35 words
A post-activation type dry image forming material as claimed in any one of claims 1 to 7, wherein the amount of the component (g) is 0.001 to 1 mole % based on the component (a).
Claim 10
Dependent Claim
39 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (a) is silver behenate, and is present in an amount of 1 to 10 g per m 2 of the area of the material.
Claim 11
Dependent Claim
37 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (b) is a hindered phenol, and is present in an amount of 0.1 to 3 moles per mole of the component (a).
Claim 12
Dependent Claim
55 words
A post-activation type dry image forming material as claimed in claim 1, wherein the silver halide component (c) or the silver halide component formed from the silver halide-forming component (c) is a mixture of mixed crystals of silver iodide and silver bromide, the molar ratio of silver iodide to silver bromide being 30/70 to 98/2.
Claim 13
Dependent Claim
20 words
A post-activation type dry image forming material as claimed in claim 11, wherein said molar ratio is 50/50 to 95/5.
Claim 14
Dependent Claim
50 words
A post-activation type dry image forming material as claimed in any one of claims 1, 11 and 12, wherein the amount of the silver halide component (c) or the silver halide component formed from the silver halide-forming component (c) is 0.1 to 20 mole % based on the component (a).
Claim 15
Dependent Claim
34 words
A post-activation type dry image forming material as claimed in claim 1, wherein the silver halide-forming component (c) is an organic halide of an element selected from Ge, Sn, P, Bi, Te and Se.
Claim 16
Dependent Claim
35 words
A post-activation type dry image forming material as claimed in claim 1, wherein the silver halide-forming component (c) is an organic N-haloamide containing a unit of the formula --CONX-- wherein X is bromine or iodine.
Claim 17
Dependent Claim
27 words
A post-activation type dry image forming material as claimed in claim 1, wherein the silver halide-forming component (c) is a halogen molecular species or a complex thereof.
Claim 18
Dependent Claim
55 words
A post-activation type dry image forming material as claimed in claim 1, wherein the silver halide-forming component (c) is at least one member selected from CoX 2 , NiX 2 , MgX 2 , BaX 2 , RbX, CsX, TeX 2 , TeX 4 , and AsX 3 , wherein X is bromine or iodine.
Claim 19
Dependent Claim
37 words
A post-activation type dry image forming material as claimed in claim 1, wherein the silver halide-forming component (c) is at least one member selected from iodine, complexes of iodine, N-iodosuccinimide, N-bromosuccinimide, cobalt dibromide, nickel dibromide and α-bromodiphenylmethane.
Claim 20
Dependent Claim
43 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (d) is at least one member selected from compounds of divalent mercury, compounds of trivalent iron, compounds of trivalent cobalt, compounds of divalent palladium and sulfinic acid compounds.
Claim 21
Dependent Claim
34 words
A post-activation type dry image forming material as claimed in claim 19, wherein the component (d) is at least one member selected from mercuric acetate, mercuric bromide, mercuric iodide, Co(III) acetylacetonate and Pd(II) acetylacetonate.
Claim 22
Dependent Claim
36 words
A post-activation type dry image forming material as claimed in any one of claims 1, 19 and 20, wherein the amount of the component (d) is 0.01 to 10 mole % based on the component (a).
Claim 23
Dependent Claim
42 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (e) is a halogenated organic compound having bromine- and/or iodine-carbon linkages and satisfying the two requirements as herein defined with respect to the photoreaction test herein described.
Claim 24
Dependent Claim
33 words
A post-activation type dry image forming material as claimed in claim 22, wherein the component (e) is at least one member selected from α,α,α',α'-tetrabromo-o-xylene, α,α,α',α'-tetrabromo-m-xylene, ethyl α,α,α-tribromoacetate, α,α,α-tribromo-p-bromotoluene, α,α,α-tribromoacetophenone, 1,1,1-tribromo-2,2-diphenylethane, 2,2,2-tribromoethanol and meso-1,2,3,4-tetrabromobutane.
Claim 25
Dependent Claim
36 words
A post-activation type dry image forming material as claimed in any one of claims 1, 22 and 23, wherein the amount of the component (e) is 2.5 to 40 mole % based on the component (a).
Claim 26
Dependent Claim
49 words
A post-activation type dry image forming material as claimed in claim 1, wherein the component (f) is polyvinyl butyral, and is present in such an amount that the weight ratio of the component (f) to the component (a) is in the range of from about 0.1 to about 10.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |