US5147769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1990-06-05
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Granted: 1992-09-15
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Expires: 2010-06-05
Abstract
Abstract An X-ray photographic material having: (1) at least one sensitive silver halide photographic emulsion layer provided on both sides of a support; and (2) at least one layer provided on at least one side of the support for fixing a dye which can be decolorized during development and which absorbs light in the sensitive region of the photographic material and wherein: (3) the dye contributes to the reduction of cross-over to less than 10%; and (4) the dye is a compound selected from the group consisting of compounds represented by the following general formula (I) and is dissolved in an oil which is a solvent substantially insoluble in water and having a boiling point of not lower than 160° C. and which is dispersed as oil droplets or is loaded and dispersed in a polymer latex: ##STR1## wherein X and Y each represents a substituent group, or X and Y may be combined together to form a heterocyclic ring L 1 , L 2 and L 3 each represents a methine group; R and R' each represents a hydrogen atom or a substituent group; m represents an integer of from 1 to 4; and n represents 0 or 1.
Inventors
- 👤 Ichizo Toya
- 👤 Yoshihiro Jimbo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:49
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/16; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/832; Y; Y10; Y10S; Y10S430/00; Y10S430/167
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
207 words
An X-ray photographic material having: (1) at least one sensitive silver halide photographic emulsion layer provided on both sides of a support; and (2) at least one dye-fixing layer provided on at least one side of the support for fixing a dye which can be decolorized during development and which absorbs light in the sensitive region of the photographic material and wherein: (3) the dye is incorporated in the dye-fixing layer and contributes to the reduction of cross-over to less than 10%; and (4) the dye is a compound selected from the group consisting of compounds represented by the following general formula (I) and is dissolved in an oil which is a solvent substantially insoluble in water and having a boiling point of not lower than 160° C. and which is dispersed as oil droplets or is loaded and dispersed in a polymer latex: ##STR27## wherein X and Y each represents a substituent group, or X and Y may be combined together to form a heterocyclic group; L 1 , L 2 and L 3 each represents a methine group; R and R' each represents a hydrogen atom or a substituent group; m represents an integer of from 1 to 4; and n represents 0 or 1.
Claim 2
Dependent Claim
207 words
An X-ray photographic material having: (1) at least one sensitive silver halide photographic emulsion layer provided on both sides of a support; and (2) at least one dye-fixing layer provided on at least one side of the support for fixing a dye which can be decolorized during development and which absorbs light in the sensitive region of the photographic material and wherein: (3) the dye is incorporated in the dye-fixing layer and contributes to the reduction of cross-over to less than 10%; and (4) the dye is a compound selected from the group consisting of compounds represented by the following general formula (I) and is dissolved in an oil which is a solvent substantially insoluble in water and having a boiling point of not lower than 160° C. and which is dispersed as oil droplets or is loaded and dispersed in a polymer latex: ##STR27## wherein X and Y each represents a substituent group, or X and Y may be combined together to form a heterocyclic group; L 1 , L 2 and L 3 each represents a methine group; R and R' each represents a hydrogen atom or a substituent group; m represents an integer of from 1 to 4; and n represents 0 or 1.
Claim 3
Dependent Claim
144 words
The X-ray photographic material of claim 1, wherein X and Y are each of a cyano group, a carboxy group, an alkylcarbonyl group, an arylcarbonyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, a sulfonyl group, a sulfamoyl group, or X and Y may be combined together to form a 5-membered heterocyclic group or a 6-membered heterocyclic group; L 1 , L 2 and L 3 are each an unsubstituted or substituted methine group; R is a hydrogen atom, a hydroxyl group, an alkoxy group, a phenoxy group, or an amino group; R' is a hydrogen atom, an alkyl group, an aryl group, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an alkoxy group, an amino group, a carbamoyl group, or a sulfamoyl group; m is an integer of 1 to 4; and n is 0 or 1.
Claim 4
Dependent Claim
12 words
The X-ray photographic material of claim 1, wherein the dye is ##STR28##
Claim 5
Dependent Claim
19 words
The X-ray photographic material of claim 1, wherein the dye is dispersed in the oil and the polymer latex.
Claim 6
Dependent Claim
31 words
The X-ray photographic material of claim 1, further comprising a dye in the form of crystalline grains in an amount less than 230 mg/m 2 per side of the photographic material.
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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) | 1995-09-15 | 1996-03-16 | 1996-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-15 | 2000-03-16 | 2000-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-15 | 2004-03-16 | 2004-09-15 | $7700.00 | Window Closed / Lapsed |