US3953211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dye developer for diffusion transfer elements
Assignee: Fujifilm Holdings Corp
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Filing: 1974-09-18
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Granted: 1976-04-27
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Expires: 1994-09-18
Abstract
Abstract A color diffusion transfer photographic light-sensitive material which comprises a support having thereon at least one light-sensitive silver halide emulsion layer containing a silver halide combined with a dye developer, one of the light-sensitive silver halide emulsion layers being combined with a dye developer represented by the following General Formula (I); ##EQU1## wherein Ar represents a divalent aromatic group; X represents ##EQU2## with R being an alkyl group having 1 to 3 carbon atoms, --NHCO-- with the nitrogen atom being connected to the Ar group or --OCO-- with the oxygen atom being connected to the Ar group; and Y represents an aromatic group having a substituent containing a hydroquinonyl group.
Inventors
- 👤 Shinichi Imai
- 👤 Shinsaku Fujita
- 👤 Yukio Maekawa
- 👤 Seiki Sakanoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:29
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/30; C07D209/40; G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10; G03C8/12; G03C8/14; G03C8/16; G03C8/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
112 words
A color diffusion transfer photographic light-sensitive material which comprises a support having thereon at least one light-sensitive silver halide emulsion layer containing a silver halide combined with a dye developer, one of the light-sensitive silver halide emulsion layers being combined with a dye developer represented by the following General Formula (I); ##EQU7## wherein Ar represents a phenylene group; X represents ##EQU8## with R being an alkyl group having 1 to 3 carbon atoms, --NHCO-- with the nitrogen atom being connected to the Ar group or --OCO-- with the oxygen atom being connected to the Ar group; and Y represents an aromatic phenyl group with a hydroquinone attached thereto through an alkylene linkage.
Claim 2
Dependent Claim
112 words
A color diffusion transfer photographic light-sensitive material which comprises a support having thereon at least one light-sensitive silver halide emulsion layer containing a silver halide combined with a dye developer, one of the light-sensitive silver halide emulsion layers being combined with a dye developer represented by the following General Formula (I); ##EQU7## wherein Ar represents a phenylene group; X represents ##EQU8## with R being an alkyl group having 1 to 3 carbon atoms, --NHCO-- with the nitrogen atom being connected to the Ar group or --OCO-- with the oxygen atom being connected to the Ar group; and Y represents an aromatic phenyl group with a hydroquinone attached thereto through an alkylene linkage.
Claim 3
Dependent Claim
35 words
The color diffusion transfer photographic light-sensitive material of Claim 1, wherein said phenylene group for Ar is a substituted phenylene group and wherein said aromatic phenyl group for Y is a substituted aromatic phenyl group.
Claim 4
Dependent Claim
29 words
The color diffusion transfer photographic light-sensitive material of Claim 1, wherein Ar is an o-phenylene group, a chloro-substituted o-phenylene group, a methyl-substituted o-phenylene group or a methoxy-substituted o-phenylene group.
Claim 5
Dependent Claim
31 words
The color diffusion transfer photographic light-sensitive material of Claim 1, wherein said compound of the General Formula (I) is 2-[p-(β-hydroquinonylethyl)phenyl]-hydrazono-3-oxo-1thiaindone, 2-[p-(β-hydroquinonylethyl)phenyl]-hydrazono-1,3-dioxoindane, 3-[p-(β-hydroquinonylethyl)phenyl]-hydrazono-2,4-dioxo-1,2,3,4tetrahydroquinoline, 3-[m-(hydroquinonylmethyl)phenyl]hydrazono-2,4-dioxochroman, 3-[p-β-hydroquinonylethyl)phenyl]hydrazono-6-methyl-2,4-dioxochroman, 3-[p-(β-hydroquinonylethyl)phenyl]hydrazono-6-chloro-2,4-dioxochroman, 2-(5-hydroquinonylmethyl-2-methylphenyl)hydrazono-5-methoxy-3-oxocoumaran, 2-[m-chloro-p-(β-hydroquinonylethyl)-phenyl]hydrazono-1-acetyl-3-oxoindoline, 2-[m-(hydroquinonlymethyl)phenyl]hydrazono-3-oxo-1-thiaindane, 2-[m-(N-hydroquinonylmethyl-N-ethylcarbamoyl)phenyl]hydrazono-1,3-dioxoindane, or 3-[m-(hydroquinonylmethyl)pheny(]hydrazono-2,4-dioxochroman.
Claim 6
Dependent Claim
60 words
The color diffusion transfer photographic light-sensitive material of claim 1, wherein said material comprises a support having thereon in order a blue-sensitive silver halide emulsion layer in combination with a yellow dye developer, a green-sensitive silver halide emulsion layer in combination with a magenta dye developer, and a red-sensitive silver halide emulsion layer in combination with a cyan dry developer.
Claim 7
Dependent Claim
54 words
A color diffusion transfer photographic unit comprising a light-sensitive element comprising the color diffusion transfer photographic light-sensitive material of claim 1, and an image receiving element comprising a support having thereon, in order, a neutralizing layer, a neutralizing rate-controlling layer and an image-receiving layer for receiving the transferred dye image from said light-sensitive element.
Claim 8
Dependent Claim
26 words
The color diffusion transfer photographic light-sensitive material of claim 2, wherein R represents a methyl group, an ethyl group, a propyl group or an iso-propyl group.
Claim 9
Dependent Claim
96 words
The color diffusion transfer photographic light-sensitive material of claim 2, wherein said substituent contained in said phenylene group of Ar is a chlorine atom, a bromine atom, a methyl group, an ethyl group, a propyl group, an isopropyl group, a methoxy group, an ethoxy group, a propoxy group or an isopropoxy group and wherein said substituent of said substituted aromatic phenyl group of Y is a chlorine atom, a bromine atom, a methyl group, an ethyl group, a propyl group, an isopropyl group, a methoxy group, an ethoxy group, a propoxy group, or an iso-propoxy group.
Claim 10
Dependent Claim
33 words
The color diffusion transfer photographic light-sensitive material of claim 1, wherein said alkylene linkage of Y is a methylene group, an ethylene group, a trimethylene group, a propylene group or a tetramethylene group.
Claim 11
Dependent Claim
33 words
The color diffusion transfer photographic light-sensitive material of claim 8, wherein said alkylene linkage of Y is a methylene group, an ethylene group, a trimethylene group, a propylene group or a tetramethylene group.
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) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |