US4603103A
Expired / Lapsed
US
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Heat-developable light-sensitive materials
Assignee: Fujifilm Holdings Corp
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Filing: 1984-11-26
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Granted: 1986-07-29
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Expires: 2004-11-26
Abstract
Abstract A heat-developable light-sensitive material comprising, on a support, a thermally decomposable organic silver salt. The heat-developable light-sensitive materials have high density and low fog.
Inventors
- 👤 Hiroyuki Hirai
- 👤 Kozo Sato
- 👤 Hiroshi Hara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:24
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49809; C; C07; C07C; C07C205/00; C07C205/49; C07C205/56; C07C57/00; C07C57/18; C07C57/20; C07C57/22; C07C57/26; C07C57/30; C07C57/34; C07C57/42; C07C57/52; C07C57/58; C07C57/60; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/76; C07C59/84; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/50; C07F9/53; C07F9/5304; G03C1/005; G03C1/04; G03C1/49836; G03C1/49863; G03C2200/00; G03C2200/27; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/159
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
167 words
A heat-developable light-sensitive material comprising, on a support, (a) a light-sensitive silver halide, (b) a thermally decomposable organic silver salt, (c) a binder, and (d) a reducing agent, wherein said thermally decomposable organic silver salt is represented by general formula (II): R.sup.0 --(--C.tbd.C--CO.sub.2).sub.m.mAg, wherein R 0 represents a monovalent residue selected from the group consisting of a hydrogen atom, an alkyl group, a substituted alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, a substituted aryl group, a heterocyclic residue, a substituted heterocyclic residue, an aralkyl group, a substituted aralkyl group, an acyl group, an alkoxycarbonyl group, a carbamoyl group, a substituted carbamoyl group, --CO 2 M (wherein M represents an alkali metal) and --CO 2 B, or a divalent residue selected from the group consisting of an alkylene group, an arylene group and a heterocyclic divalent residue, wherein B is a conjugated acid of an organic base or a quaternary ammonium group and m represents an integer of 1 to 4.
Claim 2
Dependent Claim
167 words
A heat-developable light-sensitive material comprising, on a support, (a) a light-sensitive silver halide, (b) a thermally decomposable organic silver salt, (c) a binder, and (d) a reducing agent, wherein said thermally decomposable organic silver salt is represented by general formula (II): R.sup.0 --(--C.tbd.C--CO.sub.2).sub.m.mAg, wherein R 0 represents a monovalent residue selected from the group consisting of a hydrogen atom, an alkyl group, a substituted alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, a substituted aryl group, a heterocyclic residue, a substituted heterocyclic residue, an aralkyl group, a substituted aralkyl group, an acyl group, an alkoxycarbonyl group, a carbamoyl group, a substituted carbamoyl group, --CO 2 M (wherein M represents an alkali metal) and --CO 2 B, or a divalent residue selected from the group consisting of an alkylene group, an arylene group and a heterocyclic divalent residue, wherein B is a conjugated acid of an organic base or a quaternary ammonium group and m represents an integer of 1 to 4.
Claim 3
Dependent Claim
32 words
The heat-developable light-sensitive material as claimed in claim 1, wherein said reducing agent is a dye providing substance which is reductive and is oxidized to image release a mobile dye when heated.
Claim 4
Dependent Claim
36 words
The heat-developable light-sensitive material as claimed in claim 1, wherein said light-sensitive silver halide is selected from the group consisting of silver chloride, silver chlorobromide, silver chloroiodide, silver bromide, silver iodobromide, silver chloroiodobromide and silver iodide.
Claim 5
Dependent Claim
25 words
The heat-developable light-sensitive material as claimed in claim 3, wherein said light-sensitive silver halide has an average particle size of 0.001 μm to 10 μm.
Claim 6
Dependent Claim
25 words
The heat-developable light-sensitive material as claimed in claim 4, wherein said light-sensitive silver halide has an average particle size of 0.001 μm to 5 μm.
Claim 7
Dependent Claim
29 words
The heat-developable light-sensitive material as claimed in claim 1, wherein said light-sensitive silver halide is employed in an amount of from 1 mg/m 2 to 10 g/m 2 .
Claim 8
Dependent Claim
33 words
The heat-developable light-sensitive material as claimed in claim 1, wherein said thermally decomposable organic silver salt is a silver salt of a carboxylic acid which undergoes decarboxylation at 80° C. to 250° C.
Claim 9
Dependent Claim
32 words
The heat-developable light-sensitive material as claimed in claim 7, wherein said thermally decomposable organic silver salt is a silver salt of carboxylic acid which undergoes decarboxylation at 100° C. to 200° C.
Claim 10
Dependent Claim
31 words
The heat-developable light-sensitive material as claimed in claim 1, wherein said thermally decomposable organic silver salt is coated in an amount of 10 mg/m 2 to 10 g/m 2 as silver.
Claim 11
Dependent Claim
34 words
The heat-developable light-sensitive material as claimed in claim 1, wherein said binder is a hydrophilic binder selected from the group consisting of a protein derivative, a cellulose derivative, a polysaccharide and a synthetic polymer.
Claim 12
Dependent Claim
44 words
The heat-developable light-sensitive material as claimed in claim 2, wherein said dye providing substance is represented by general formula (IV): R a --SO 2 --D, wherein R a represents a reducing group and D represents an image forming dye moiety containing a hydrophilic group.
Claim 13
Dependent Claim
31 words
The heat-developable light-sensitive material as claimed in claim 1, wherein said reducing agent is selected from the group consisting of a hydroquinone, an aminophenol, a catechol, a phenylenediamine and a 3-pyrazolidone.
Claim 14
Dependent Claim
40 words
The heat-developable light-sensitive material as claimed in claim 12, wherein said 3-pyrazolidone is selected from the group consisting of 1-phenyl-3-pyrazolidone, 1-phenyl-4,4-dimethyl-3-pyrazolidone, 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidone, 1-m-tolyl-3-pyrazolidone, 1-p-tolyl-3-pyrazolidone, 1-phenyl-4-methyl-3-pyrazolidone, 1-phenyl-5-methyl-3-pyrazolidone, 1-phenyl-4,4-bis-(hydroxymethyl)-3-pyrazolidone, 1,4-dimethyl-3-pyrazolidone, 4-methyl-3-pyrazolidone, 4,4-dimethyl-3-pyrazolidone, 1-(3-chlorophenyl)-4-methyl-3-pyrazolidone, 1-(4-chlorophenyl)-4-methyl-3-pyrazolidone, 1-(4-tolyl)-4-methyl-3-pyrazolidone, 1-(2-tolyl)-4-methyl-3-pyrazolidone, 1-(4-tolyl)-3-pyrazolidone, 1-(3-tolyl)-3-pyrazolidone, 1-(3-tolyl)-4,4-dimethyl-3-pyrazolidone, 1-(2-trifluoroethyl)-4,4-dimethyl-3-pyrazolidone and 5-methyl-3-pyrazolidone.
Claim 15
Dependent Claim
29 words
The heat-developable light-sensitive material as claimed in claim 1, wherein said reducing agent is employed in an amount of from 0.1 mol to 20 mols per mol of silver.
Claim 16
Dependent Claim
29 words
The heat-developable light-sensitive material as claimed in claim 14, wherein said reducing agent is employed in an amount of from 0.1 mol to 10 mols per mol of silver.
Claim 17
Dependent Claim
101 words
The heat-developable light-sensitive material as claimed in claim 11, wherein said R a is represented by formulae (V) to (XII) ##STR30## wherein R a 1 , R a 2 , R a 3 and R a 4 each represents a hydrogen atom or a substituent selected from an alkyl group, a cycloalkyl group, an aryl group, an alkoxy group, an aryloxy group, an arylkyl group, an acyl group, an acylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, an aryloxyalkyl group, an alkoxyalkyl group, an N-substituted carbamoyl group, an N-substituted sulfamoyl group, a halogen atom, an alkylthio group or an arylthio group.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |