US5360712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internally doped silver halide emulsions and processes for their preparation
Assignee: Eastman Kodak Co
•
Filing: 1993-07-13
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Granted: 1994-11-01
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Expires: 2013-07-13
Abstract
Abstract A process is disclosed of preparing a radiation sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a metal hexacoordination or tetracoordination complex having at least one organic ligand containing a least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond, or at least one carbon-to-nitrogen-to-hydrogen bond sequence and at least half of the metal coordination sites occupied by halide or pseudohalide ligands. The metal forming the complex is chosen from periods 4, 5 and 6 and groups 3 to 13 inclusive of the periodic table of elements. The incorporation of the transition metal ion dopant and at least one organic ligand into the cubic crystal lattice of the silver halide grains can be used to improve photographic performance.
Inventors
- 👤 Myra T. Olm
- 👤 Woodrow G. McDugle
- 👤 Sherrill A. Puckett
- 👤 Traci Y. Kuromoto
- 👤 Raymond S. Eachus
- 👤 Eric L. Bell
- 👤 Robert D. Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08
Claims Analysis
Total Claims: 69
Claim 1
Independent Claim
97 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination complex of a metal chosen from groups 8 and 9 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands.
Claim 2
Dependent Claim
97 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination complex of a metal chosen from groups 8 and 9 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands.
Claim 3
Dependent Claim
36 words
A photographic silver halide emulsion according to claim 1 wherein the silver halide grains are chosen from among silver bromide, silver iodobromide, silver chloride, silver chlorobromide, silver bromochloride, silver iodochloride, silver iodobromochloride and silver iodochlorobromide grains.
Claim 4
Dependent Claim
19 words
A photographic silver halide emulsion according to claim 2 wherein the organic ligands contain up to 18 nonmetal atoms.
Claim 5
Dependent Claim
27 words
A photographic silver halide emulsion according to claim 3 wherein at least one of the organic ligands is comprised of a 5 or 6 membered heterocyclic ring.
Claim 6
Dependent Claim
22 words
A photographic silver halide emulsion according to claim 4 wherein the heterocyclic ring contains from 1 to 3 nitrogen heterocyclic ring atoms.
Claim 7
Dependent Claim
29 words
A photographic silver halide emulsion according to claim 5 wherein the heterocyclic ring is chosen from among azole, diazole, triazole, tetrazole, triazologuinoline, pyridine, bipyridine, pyrazine, pyridazine and pyrene moieties.
Claim 8
Dependent Claim
30 words
A photographic silver halide emulsion according to claim 4 wherein the metal is cobalt and a pseudohalide dopant is also present having a Hammett sigma value more positive than 0.50.
Claim 9
Dependent Claim
19 words
A photographic silver halide emulsion according to claim 1 wherein the organic ligands contain up to 24 nonmetal atoms.
Claim 10
Dependent Claim
52 words
A photographic silver halide emulsion according to claim 1 wherein the organic ligands are selected from among substituted and unsubstituted aliphatic and aromatic hydrocarbons, amines, phosphines, amides, imides, nitriles, aldehydes, ethers, ketones, organic acids, sulfoxides, and aliphatic and aromatic heterocycles including one or a combination of chalcogen and pnictide hetero ring atoms.
Claim 11
Dependent Claim
21 words
A photographic silver halide emulsion according to claim 1 wherein the metal is chosen from among iron, ruthenium, rhodium and iridium.
Claim 12
Dependent Claim
17 words
A photographic silver halide emulsion according to claim 1 wherein the metal is a period 4 element.
Claim 13
Dependent Claim
17 words
A photographic silver halide emulsion according to claim 1 wherein the metal is a period 5 element.
Claim 14
Dependent Claim
17 words
A photographic silver halide emulsion according to claim 1 wherein the metal is a period 6 element.
Claim 15
Dependent Claim
15 words
A photographic silver halide emulsion according to claim 1 which includes a spectral sensitizing dye.
Claim 16
Dependent Claim
130 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is comprised of a 5 or 6 membered heterocylic ring that contains at least one sulfur heterocyclic ring atom.
Claim 17
Dependent Claim
130 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is comprised of a 5 or 6 membered heterocylic ring that contains at least one sulfur heterocyclic ring atom.
Claim 18
Dependent Claim
130 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is comprised of a heterocylic ring that is an azole ring containing a chalcogen atom and a nitrogen atom.
Claim 19
Dependent Claim
130 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is comprised of a heterocylic ring that is an azole ring containing a chalcogen atom and a nitrogen atom.
Claim 20
Dependent Claim
21 words
A photographic silver halide emulsion according to claim 16 wherein the heterocyclic ring is an oxazole, thiazole, selenazole or tellurazole ring.
Claim 21
Dependent Claim
115 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aliphatic azahydrocarbon.
Claim 22
Dependent Claim
115 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aliphatic azahydrocarbon.
Claim 23
Dependent Claim
16 words
A photographic silver halide emulsion according to claim 18 wherein the aliphatic azahydrocarbon is a diamine.
Claim 24
Dependent Claim
103 words
A photographic element comprised of radiation-sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination complex of a metal chosen from periods 4, 5 and 6 of groups 8 and 9 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, carbon-to-hydrogen bond, or carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is a nitrile.
Claim 25
Dependent Claim
103 words
A photographic element comprised of radiation-sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination complex of a metal chosen from periods 4, 5 and 6 of groups 8 and 9 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, carbon-to-hydrogen bond, or carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is a nitrile.
Claim 26
Dependent Claim
16 words
A photographic silver halide emulsion according to claim 20 wherein the nitrile is acetonitrile or benzonitrile.
Claim 27
Dependent Claim
115 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aliphatic sulfoxide.
Claim 28
Dependent Claim
115 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aliphatic sulfoxide.
Claim 29
Dependent Claim
15 words
A photographic silver halide emulsion according to claim 22 wherein the aliphaticsulfoxide ligand is dialkylsulfoxide.
Claim 30
Dependent Claim
114 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is a dicarboxylate.
Claim 31
Dependent Claim
114 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a metal chosen from periods 4, 5 and 6 of groups 3 to 14 of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is a dicarboxylate.
Claim 32
Dependent Claim
16 words
A photographic silver halide emulsion according to claim 24 wherein the dicarboxylate ligand is an oxalate.
Claim 33
Dependent Claim
94 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of rhodium present in a concentration sufficient to increase contrast in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands.
Claim 34
Dependent Claim
94 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of rhodium present in a concentration sufficient to increase contrast in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands.
Claim 35
Dependent Claim
104 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a group 8 metal in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal, coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein a pseudohalide ligand is present having a Hammett sigma value more positive than 0.50.
Claim 36
Dependent Claim
104 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a group 8 metal in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal, coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein a pseudohalide ligand is present having a Hammett sigma value more positive than 0.50.
Claim 37
Dependent Claim
106 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains containing greater than 50 mole percent chloride exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a group 8 metal in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aliphatic sulfoxide.
Claim 38
Dependent Claim
106 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains containing greater than 50 mole percent chloride exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a group 8 metal in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aliphatic sulfoxide.
Claim 39
Dependent Claim
106 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains containing greater than 50 mole percent bromide exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a group 8 metal in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aliphatic sulfoxide.
Claim 40
Dependent Claim
106 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains containing greater than 50 mole percent bromide exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of a group 8 metal in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aliphatic sulfoxide.
Claim 41
Dependent Claim
97 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of iridium in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aromatic heterocyclic moiety.
Claim 42
Dependent Claim
97 words
A photographic silver halide emulsion comprised of radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination or tetracoordination complex of iridium in which one or more organic ligands each containing at least one carbon-to-carbon bond, at least one carbon-to-hydrogen bond or at least one carbon-to-nitrogen-to-hydrogen bond sequence occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands, wherein at least one organic ligand is an aromatic heterocyclic moiety.
Claim 43
Dependent Claim
84 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a metal hexacoordination complex having at least one organic ligand containing at least one carbon-to-carbon bond, carbon-to-hydrogen bond, or carbon-to-nitrogen-to-hydrogen bond sequence and at least half of the metal coordination sites occupied by halide or pseudohalide ligands, the metal forming the complex being chosen from periods 4, 5 and 6 and groups 8 and 9 of the periodic table of elements.
Claim 44
Dependent Claim
84 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a metal hexacoordination complex having at least one organic ligand containing at least one carbon-to-carbon bond, carbon-to-hydrogen bond, or carbon-to-nitrogen-to-hydrogen bond sequence and at least half of the metal coordination sites occupied by halide or pseudohalide ligands, the metal forming the complex being chosen from periods 4, 5 and 6 and groups 8 and 9 of the periodic table of elements.
Claim 45
Dependent Claim
39 words
A process of preparing a radiation-sensitive silver halide emulsion according to claim 31 wherein the halide ions are chosen to form silver bromide, silver iodobromide, silver chloride, silver chlorobromide, silver bromochloride, silver iodochloride, silver iodobromochloride or silver iodochlorobromide grains.
Claim 46
Dependent Claim
23 words
A process of preparing a radiation-sensitive silver halide emulsion according to claim 31 wherein the organic ligand contains up to 24 nonmetal atoms.
Claim 47
Dependent Claim
56 words
A process of preparing a radiation-sensitive silver halide emulsion according to claim 31 wherein the organic ligands are selected from among substituted and unsubstituted aliphatic and aromatic hydrocarbons, amines, phosphines, amides, imides, nitriles, aldehydes, ketones, ethers, organic acids, sulfoxides, and aliphatic and aromatic heterocycles including one or a combination of chalcogen and pnictide hetero ring atoms.
Claim 48
Dependent Claim
23 words
A process of preparing a radiation-sensitive silver halide emulsion according to claim 31 wherein the metal is chosen from among group 8 metals.
Claim 49
Dependent Claim
26 words
A process of preparing a radiation-sensitive silver halide emulsion according to claim 31 wherein the metal is chosen from among iron, cobalt, ruthenium, rhodium and iridium.
Claim 50
Dependent Claim
36 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a pentacyano iron coordination complex containing a pyridine, pyrazine, pyrazole or 4,4'-bipyridine ligand.
Claim 51
Dependent Claim
36 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a pentacyano iron coordination complex containing a pyridine, pyrazine, pyrazole or 4,4'-bipyridine ligand.
Claim 52
Dependent Claim
34 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a pentacyano iron or ruthenium coordination complex containing a dimethylsulfoxide ligand.
Claim 53
Dependent Claim
34 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a pentacyano iron or ruthenium coordination complex containing a dimethylsulfoxide ligand.
Claim 54
Dependent Claim
38 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a pentacyano ruthenium or osmium coordination complex containing a pyridine, pyrazine, pyrazole or 4,4'-bipyridine ligand.
Claim 55
Dependent Claim
38 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a pentacyano ruthenium or osmium coordination complex containing a pyridine, pyrazine, pyrazole or 4,4'-bipyridine ligand.
Claim 56
Dependent Claim
39 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iridium coordination complex containing chloride ligands and from 1 to 3 pyrazine or pyridine ligands.
Claim 57
Dependent Claim
39 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iridium coordination complex containing chloride ligands and from 1 to 3 pyrazine or pyridine ligands.
Claim 58
Dependent Claim
31 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iridium coordination complex containing an oxalato ligand.
Claim 59
Dependent Claim
31 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iridium coordination complex containing an oxalato ligand.
Claim 60
Dependent Claim
33 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iridium coordination complex containing one or two acetonitrile ligands.
Claim 61
Dependent Claim
33 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iridium coordination complex containing one or two acetonitrile ligands.
Claim 62
Dependent Claim
31 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a cobalt coordination complex containing an ethylenediamine ligand.
Claim 63
Dependent Claim
31 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a cobalt coordination complex containing an ethylenediamine ligand.
Claim 64
Dependent Claim
31 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iridium coordination complex containing a thiazole ligand.
Claim 65
Dependent Claim
31 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iridium coordination complex containing a thiazole ligand.
Claim 66
Dependent Claim
36 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a pentacyano rhodium coordination complex containing a pyridine, pyrazine, pyrazole or 4,4'-bipyridine ligand.
Claim 67
Dependent Claim
36 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of a pentacyano rhodium coordination complex containing a pyridine, pyrazine, pyrazole or 4,4'-bipyridine ligand.
Claim 68
Dependent Claim
31 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iron coordination complex containing a triazoloquinoline ligand.
Claim 69
Dependent Claim
31 words
A process of preparing a radiation-sensitive silver halide emulsion comprising reacting silver and halide ions in a dispersing medium in the presence of an iron coordination complex containing a triazoloquinoline ligand.
References Cited (Backward Citations)
US3672901A
Cited
US3890154A
Cited
US3790390A
Cited
US3901711A
Cited
US4173483A
Cited
US4092171A
Cited
US4847191A
Cited
US4933272A
Cited
US4835093A
Cited
US4937180A
Cited
US4945035A
Cited
US4981781A
Cited
US5037732A
Cited
US5132203A
Cited
US5268264A
Cited
EP0513748A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-31 | 1998-05-02 | 1998-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-31 | 2002-05-02 | 2002-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-31 | 2006-05-02 | 2006-11-01 | $7700.00 | Window Closed / Lapsed |