Patent US3877943A successfully refreshed from Google Patents.
US3877943A
Expired / Lapsed
US
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Heat developable photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1974-02-05
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Granted: 1975-04-15
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Expires: 1994-02-05
Abstract
Abstract WHEREIN R1 and R2 each represents a hydrogen atom, an alkyl group or a phenyl group, and X and Y each represents a monovalent or divalent atomic group necessary for forming a five-membered or six-membered heterocyclic group containing a nitrogen atom(s), the heterocyclic group optionally containing substituent(s) and/or fused ring(s). A heat developable photographic material having at least one photosensitive layer on a support, the layer containing the following components: A. AN ORGANIC SILVER SALT, B. A CATALYTIC AMOUNT OF A PHOTOSENSITIVE SILVER HALIDE OR A COMPOUND WHICH REACTS WITH THE ORGANIC SILVER SALT (A) TO PRODUCE A PHOTOSENSITIVE SILVER HALIDE, C. A REDUCING AGENT, D. A BINDER, AND E. A COMPOUND OF THE FOLLOWING FORMULA:
Inventors
- 👤 Takao Masuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:30
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49836; G03C1/49845; G03C1/49854
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
64 words
A HEAT DEVELOPABLE PHOTOGRAPHIC MATERIAL COMPRISING A SUPPORT HAVING AT LEAST ONE PHOTOSENSITIVE LAYER CONTAINING THE FOLLOWING COMPONENTS: A. AN ORGANIC SILVER SALT, B. A CATALYTIC AMOUNT OF A PHOTOSENSITIVE SILVER HALIDE OR A COMPOUND WHICH REACTS WITH SAID ORGANIC SILVER SALT (A) TO PRODUCE A PHOTOSENSITIVE SILVER HALIDE, C. A REDUCING AGENT, D. A BINDER, AND E. A COMPOUND OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
64 words
A HEAT DEVELOPABLE PHOTOGRAPHIC MATERIAL COMPRISING A SUPPORT HAVING AT LEAST ONE PHOTOSENSITIVE LAYER CONTAINING THE FOLLOWING COMPONENTS: A. AN ORGANIC SILVER SALT, B. A CATALYTIC AMOUNT OF A PHOTOSENSITIVE SILVER HALIDE OR A COMPOUND WHICH REACTS WITH SAID ORGANIC SILVER SALT (A) TO PRODUCE A PHOTOSENSITIVE SILVER HALIDE, C. A REDUCING AGENT, D. A BINDER, AND E. A COMPOUND OF THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
27 words
The photographic material as claimed in claim 1 wherein X and Y each form a thiazoline, thiazole, benzoxazole, benzthiazole, benzselenazole, tetrazole, naphthothiazole, dimethylindolenine, quinoline or pyridine nucleus.
Claim 4
Dependent Claim
18 words
The photographic material as claimed in claim 1, wherein X represents a heterocyclic group of the following formulae:
Claim 5
Dependent Claim
18 words
The photographic material as claimed in claim 1, wherein Y forms a heterocyclic group of the following formulae:
Claim 6
Dependent Claim
13 words
The photographic material as claimed in claim 1, wherein the component (e) is
Claim 7
Dependent Claim
34 words
The photographic material as claimed in claim 1, wherein said component (e) is present in an amount ranging from about 10 6 to 10 2 mole per 1 mole of said organic silver salt.
Claim 8
Dependent Claim
32 words
The photographic material as claimed in claim 1, including an optical sensitizing dye in an amount of about 10 6 to 10 2 mole per 1 mole of said organic silver salt.
Claim 9
Dependent Claim
17 words
The photographic material as claimed in claim 1, including an overcoating layer superposed on said photosensitive layer.
Claim 10
Dependent Claim
31 words
The photographic material as claimed in claim 1, wherein said organic silver salt (a) is a silver salt of an organic compound containing an imino group, mercapto group or carboxyl group.
Claim 11
Dependent Claim
94 words
The photographic material as claimed in claim 1, wherein said component (b) which is capable of forming a lightsensitive silver halide by reaction with said organic silver salt (a) is selected from the group consisting of (i) inorganic halides of the general formula MXn, wherein M is a hydrogen atom, an ammonium group or a metal atom, X is a halogen atom, and n is 1 when M is a hydrogen atom or an ammonium group or represents the valency of said metal atom when M is a metal, and (ii) organic halogen compounds.
Claim 12
Dependent Claim
51 words
The photographic material as claimed in claim 1, wherein said reducing agent (c) is selected from the group consisting of substituted phenols, substituted or unsubstituted bisphenols, substituted or unsubstituted naphthols, di- or poly-hydroxybenzenes, di- or poly-hydroxynaphthalenes, hydroquinone monoethers, ascorbic acid, ascorbic acid derivatives, 3-pyrazolidones, pyrazoline-5-ones, reducing saccharides, kojic acid, and hinokitiol.
Claim 13
Dependent Claim
54 words
The photographic material as claimed in claim 10, wherein said metal is strontium, cadmium, zinc, tin, chromium, sodium, barium, iron, cesium, lanthanum, copper, calcium, nickel, magnesium, potassium, aluminum, antimony, gold, cobalt, mercury, lead, beryllium, lithium, manganese, gallium, indium, rhodium, ruthenium, palladium, platinum, thallium or bismuth and wherein said X is chlorine, bromine or iodine.
Claim 14
Dependent Claim
45 words
The photographic material as claimed in claim 10, wherein said compound capable of forming a light-sensitive silver halide by the reaction thereof with said organic silver salt (a) is triphenylmethyl chloride, triphenylmethyl bromide, 2-bromo-2-methylpropane, 2-bromobutyric acid, 2-bromoethanol, dichlorobenzophenone, iodoform, bromoform, carbon tetrabromide or carbon tetrachloride.
Claim 15
Dependent Claim
29 words
The photographic material as claimed in claim 1, wherein said light-sensitive silver halide is silver chloride, silver bromide, silver bromoiodide, silver chlorobromoiodide, silver chlorobromide, silver iodide or silver chloroiodide.
Claim 16
Dependent Claim
19 words
The photographic material as claimed in claim 1, wherein said binder is a hydrophobic binder or a hydrophilic binder.
Claim 17
Dependent Claim
57 words
The photographic material as claimed in claim 15, wherein said binder is gelatin, gelatin phthalide, polyacrylamide, polyvinyl butyral, cellulose acetate-butyrate, cellulose acetatepropionate, polymethylmethacrylate, polyvinyl pyrrolidone, polystyrene, ethyl cellulose, polyvinyl chloride, chlorinated rubber, polyisobutylene, butadiene-styrene copolymer, vinyl chloride-vinyl acetate copolymer, vinyl acetate-vinyl chloride-maleic acid copolymer, polyvinyl alcohol, polyvinyl acetate, benzyl cellulose, cellulose acetate, cellulose propionate or cellulose acetatephthalate.
Claim 18
Dependent Claim
13 words
The photographic material as claimed in claim 16, wherein said binder is polyvinylbutyral.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |