US3885967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally developable light-sensitive element
Assignee: Fujifilm Holdings Corp
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Filing: 1974-05-07
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Granted: 1975-05-27
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Expires: 1994-05-07
Abstract
Abstract A lightsensitive element for heat development comprising a support having at least one layer thereon comprising; A. SILVER LAURATE OR SILVER CAPRATE, B. A CATALYTIC AMOUNT OF A PHOTOSENSITIVE SILVER HALIDE OR A COMPOUND WHICH REACTS WITH SILVER LAURATE OR SILVER CAPRATE TO FORM A PHOTOSENSITIVE SILVER HALIDE, C. A REDUCING AGENT, D. A BINDER, AND E. A TONING AGENT REPRESENTED BY THE FORMULA: WHEREIN R1, R2, R3 and R4 each represents a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, an acylamido group, a halogen atom, a hydroxyl group or a nitro group.
Inventors
- 👤 Kenji Sashihara
- 👤 Takao Masuda
- 👤 Yasuhiro Noguchi
- 👤 Tadao Shishido
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:55
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49836; G03C1/49845; Y; Y10; Y10S; Y10S430/00; Y10S430/166
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
73 words
A PHOTOSENSTIVE MATERIAL FOR A THERMALLY DEVELOPABLE LIGHTSENTIVE ELEMENT WHICH COMPRISES: A. A SILVER SALT COMPONENT COMPRISING SILVER LAURATE OR SILVER CAPRATE, B. A CATALYTIC AMOUNT OF A PHOTOSENSITIVE SILVER HALIDE COMPONENT COMPRISING A PHOTOSENSITIVE SILVER HALIDE, OR A COMPOUND WHICH REACTS WITH SILVER LAURATE OR SILVER CAPRATE TO FORM A PHOTOSENSITIVE SILVER HALIDE, C. A REDUCING AGENT, D. A BINDER, AND E. A TONING AGENT COMPRISING A COMPOUND REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
73 words
A PHOTOSENSTIVE MATERIAL FOR A THERMALLY DEVELOPABLE LIGHTSENTIVE ELEMENT WHICH COMPRISES: A. A SILVER SALT COMPONENT COMPRISING SILVER LAURATE OR SILVER CAPRATE, B. A CATALYTIC AMOUNT OF A PHOTOSENSITIVE SILVER HALIDE COMPONENT COMPRISING A PHOTOSENSITIVE SILVER HALIDE, OR A COMPOUND WHICH REACTS WITH SILVER LAURATE OR SILVER CAPRATE TO FORM A PHOTOSENSITIVE SILVER HALIDE, C. A REDUCING AGENT, D. A BINDER, AND E. A TONING AGENT COMPRISING A COMPOUND REPRESENTED BY THE FORMULA:
Claim 3
Dependent Claim
84 words
A thermally developable lightsensitive element comprising a support having thereon at least one layer comprising: a. a silver salt component comprising silver laurate or silver caprate; b. a catalytic amount of a photosensitive silver halide component comprising a photosensitive silver halide, or a compound which reacts with the silver laurate or silver caprate of silver salt component (a) to form a photosensitive silver halide; c. a reducing agent; d. a binder; and e. a toning agent component comprising a compound represented by the formula:
Claim 4
Dependent Claim
84 words
A thermally developable lightsensitive element comprising a support having thereon at least one layer comprising: a. a silver salt component comprising silver laurate or silver caprate; b. a catalytic amount of a photosensitive silver halide component comprising a photosensitive silver halide, or a compound which reacts with the silver laurate or silver caprate of silver salt component (a) to form a photosensitive silver halide; c. a reducing agent; d. a binder; and e. a toning agent component comprising a compound represented by the formula:
Claim 5
Dependent Claim
30 words
The lightsensitive element according to claim 2, wherein said photosensitive silver halide is silver chloride, silver bromide, silver bromide iodide, silver chloride bromide iodide, sIlver chloride bromide, or silver iodide.
Claim 6
Dependent Claim
93 words
The lightsensitive element according to claim 2, wherein the compound which reacts with silver laurate or silver caprate to form a photosensitive silver halide is selected from the group consisting of an inorganic compound represented by the formula: M Xn 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 and when M is a metal atom, n is equal to the valence of the metal, and an organic halogen compound.
Claim 7
Dependent Claim
46 words
The lightsensitive element according to claim 4, wherein the organic halogen compound is triphenylmethyl chloride, triphenylmethyl bromide, 2-bromo-2-methyl propane, 2-bromobutyrate, 2-bromoethanol, benzophenone dichloride, iodoform, bromoform, carbon tetrabromide, an N-haloacetamide, an N-halosuccinimide, an N-halophthalimide, an N-halophthalazone, an N-halobenzotriazole, an N-halobenzimidazole, 1,3-dibromo-5,5-dimethylthiohydantoin, 1,3-dichloro-5,5-dimethyl thiohydantoin or an onium halide.
Claim 8
Dependent Claim
32 words
The lightsensitive element according to claim 2, wherein the amount of the photosensitive silver halide component (b) ranges from about 0.001 to 0.3 mole per mole of the silver salt component (a).
Claim 9
Dependent Claim
24 words
The lightsensitive element according to claim 2, wherein the reducing agent is a substituted phenol, a substituted or unsubstituted bisphenol or a hydroquinone monoether.
Claim 10
Dependent Claim
31 words
The lightsensitive element according to claim 2, wherein the amount of the reducing agent component (c) ranges from about 0.5 to 2 mole per mole of the silver salt component (a).
Claim 11
Dependent Claim
28 words
The lightsensitive element according to claim 2, wherein the weight ratio of the binder component (d) to the silver salt component (a) ranges from about 4:1 to 1:4.
Claim 12
Dependent Claim
19 words
The lightsensitive element according to claim 2, wherein the toning agent component comprises a compound represented by the formula
Claim 13
Dependent Claim
42 words
The lightsensitive element according to claim 2, wherein the layer further contains at least one optical sensitizer in an amount of from about 1 X 10 6 to about 1 X 10 2 mole per mole of the silver salt component (a).
Claim 14
Dependent Claim
38 words
The lightsensitive element according to claim 2, wherein the layer further contains at least one antiheatfogging agent in an amount of from about 1 X 10 3 to 1 mole per mole of the silver salt component (a).
References Cited (Backward Citations)
US3080254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |