Patent US4055428A successfully refreshed from Google Patents.
US4055428A
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US
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Redox dye releasers o-sulfonamidophenol
Assignee: Fujifilm Holdings Corp
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Filing: 1976-03-26
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Granted: 1977-10-25
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Expires: 1996-03-26
Abstract
Abstract A color photographic material for, in particular, a color diffusion transfer process having at least one silver halide emulsion layer having associated therewith a dye releasing redox compound shown by the formula ##STR1## wherein G represents a hydroxyl group or a group yielding a hydroxyl group by hydrolysis, Col represents a dye or a group yielding a dye by hydrolysis, R represents an alkyl group or an aromatic group, X represents a substituent comprising an electron donating group or substituents, which may be same or different, at least one of which comprises an electron donating group, and n is 1, 2, or 3, where X moieties may form a condensed ring (excluding an aromatic hydrocarbon ring) with each other or with OR, wherein the total carbon number of Xn and R is more than 8.
Inventors
- 👤 Koichi Koyama
- 👤 Yukio Maekawa
- 👤 Masami Miyakawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:58
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/44; C07D231/46; C07C; C07C311/00; C07C311/30; C07C311/37; C07C311/38; C07C311/44; C07C311/45; C07C311/46; C09; C09B; C09B69/00; G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
167 words
A color photographic material comprising a support and at least a silver halide emulsion layer having associated therewith a dye releasing redox compound represented by the general formula ##STR9## wherein G represents a hydroxyl group or a group giving a hydroxyl group upon hydrolysis, Col represents a dye or a group giving a dye, both being diffusible when released upon hydrolysis, R represents an alkyl group or an aromatic group, X represents an electron donating group substituent when n is 1 or substituents, which may be the same or different, one of said substituents being an electron donating group and the second or second and third substituents being selected from the group consisting of an electron donating group or a halogen atom when n is 2 or 3, wherein X groups may form a condensed ring, excluding an aromatic hydrocarbon ring, with each other or with OR, n is 1, 2 or 3 and the total carbon number of X n and R is larger than 8.
Claim 2
Dependent Claim
167 words
A color photographic material comprising a support and at least a silver halide emulsion layer having associated therewith a dye releasing redox compound represented by the general formula ##STR9## wherein G represents a hydroxyl group or a group giving a hydroxyl group upon hydrolysis, Col represents a dye or a group giving a dye, both being diffusible when released upon hydrolysis, R represents an alkyl group or an aromatic group, X represents an electron donating group substituent when n is 1 or substituents, which may be the same or different, one of said substituents being an electron donating group and the second or second and third substituents being selected from the group consisting of an electron donating group or a halogen atom when n is 2 or 3, wherein X groups may form a condensed ring, excluding an aromatic hydrocarbon ring, with each other or with OR, n is 1, 2 or 3 and the total carbon number of X n and R is larger than 8.
Claim 3
Dependent Claim
28 words
The color photographic material as set forth in claim 1 wherein said dye releasing redox compound is incorporated in the silver halide emulsion layer associated with the compound.
Claim 4
Dependent Claim
33 words
The color photographic material as set forth in claim 1 wherein said dye releasing redox compound is incorporated in a layer disposed adjacent to the silver halide emulsion layer associated with the compound.
Claim 5
Dependent Claim
24 words
The color photographic material as set forth in claim 1 wherein said dye releasing redox compound is selected from the group consisting of: ##STR10##
Claim 6
Dependent Claim
181 words
A photographic unit for a color diffusion transfer process comprising a support, a photosensitive element, an image-receiving element, and an aqueous and alkaline liquid processing composition, said photosensitive element comprising at least one silver halide emulsion layer having associated therewith a dye releasing redox compound represented by the general formula ##STR11##wherein G represents a hydroxyl group or a group giving a hydroxyl group upon hydrolysis, Col represents a dye or a group giving a dye, both being diffusible when released upon hydrolysis; R represents an alkyl group or an aromatic group, X represents an electron donating group substituent when n is 1, or substituents, which may be the same or different, one of said substituents being an electron donating group and the second or second and third substituents being selected from the group consisting of an electron donating group or a halogen atom, wherein X groups may form a condensed ring, excluding an aromatic ring, with each other or with OR, n is 1, 2 or 3 and the total carbon number of X n and R is larger than 8.
Claim 7
Dependent Claim
181 words
A photographic unit for a color diffusion transfer process comprising a support, a photosensitive element, an image-receiving element, and an aqueous and alkaline liquid processing composition, said photosensitive element comprising at least one silver halide emulsion layer having associated therewith a dye releasing redox compound represented by the general formula ##STR11##wherein G represents a hydroxyl group or a group giving a hydroxyl group upon hydrolysis, Col represents a dye or a group giving a dye, both being diffusible when released upon hydrolysis; R represents an alkyl group or an aromatic group, X represents an electron donating group substituent when n is 1, or substituents, which may be the same or different, one of said substituents being an electron donating group and the second or second and third substituents being selected from the group consisting of an electron donating group or a halogen atom, wherein X groups may form a condensed ring, excluding an aromatic ring, with each other or with OR, n is 1, 2 or 3 and the total carbon number of X n and R is larger than 8.
Claim 8
Dependent Claim
36 words
The photographic unit for a color diffusion transfer process as set forth in claim 5 wherein said dye releasing redox compound is incorporated in the at least one silver halide emulsion layer associated with the compond.
Claim 9
Dependent Claim
38 words
The photographic unit for a color diffusion transfer process as set forth in claim 5 wherein said dye releasing redox compound is incorporated in a layer disposed adjacent to the silver halide emulsion layer associated with the compound.
Claim 10
Dependent Claim
34 words
The photographic unit for a color diffusion transfer process as set forth in claim 5 wherein said photsensitive element has three silver halide emulsion layers each having associated therewith the dye releasing redox compound.
Claim 11
Dependent Claim
76 words
The photographic unit for color diffusion transfer process as set forth in claim 5 wherein said photosensitive element comprises a blue-sensitive silver halide emulsion layer having associated therewith a yellow dye releasing redox compound, a green-sensitive silver halide emulsion layer having associated therewith a magenta dye releasing redox compond, and a red sensitive silver halide emulsion layer having associated therewith a cyan dye releasing redox compound, said dye releasing redox compounds being within the general formula.
Claim 12
Dependent Claim
29 words
The photographic unit for a color diffusion transfer process as set forth in claim 5 wherein said dye releasing redox compound is selected from the group consisting of: ##STR12##
Claim 13
Dependent Claim
69 words
The photographic unit for a color diffusion transfer process as set forth in claim 5, wherein the photosensitive element is superimposed on the image receiving element which contains a transparent support having thereon a dyeable mordant layer, through a reflecting layer disposed between the mordant layer and the silver halide emulsion layer, the dye image transferred after exposure to the mordant layer being observed without stripping the photosensitive element.
Claim 14
Dependent Claim
48 words
The photographic unit for a color diffusion transfer process as set forth in claim 5, wherein the photosensitive element is superimposed on the image receiving element in a face-to-face relationship and the photographic unit, after image-wise exposure, is processable by spreading an alkaline processing solution between both elements.
Claim 15
Dependent Claim
23 words
The color photographic material as set forth in claim 1, wherein the group giving a hydroxyl group upon hydrolysis is an acyloxy group.
Claim 16
Dependent Claim
36 words
The color photographic material as set forth in claim 13, wherein the said acyloxy group is an acetoxy group, a benzoyloxy group, a p-nitrobenzoyloxy group, a methane sulfonyloxy group, a p-toluenesulfonyloxy group, or a propionyloxy group.
Claim 17
Dependent Claim
45 words
The color photographic material as set forth in claim 1, wherein the dye represented by Col is an azo dye, an azomethine dye, an indoaniline dye, an indophenol dye, a triphenylmethane dye, an anthraquinone dye, an indigo dye, or metal complex salts of these dyes.
Claim 18
Dependent Claim
27 words
The color photographic material as set forth in claim 1, wherein the said group which yields a dye by hydrolysis is an acylated auxochrome of the dye.
Claim 19
Dependent Claim
29 words
The color photographic material as set forth in claim 1, wherein the said dye or group giving a dye upon hydrolysis has a group capable of providing water solubility.
Claim 20
Dependent Claim
35 words
The color photographic material as set forth in claim 17, wherein the group capable of providing water solubility is a hydroxy group, a sulfonic acid or salts thereof, a sulfonamide group, or a carboxy group.
Claim 21
Dependent Claim
35 words
The color phogographic material as set forth in claim 1, wherein the alkyl group of R is a straight chain or branched chain alkyl group having 1 to 24 carbon atoms, which may be substituted.
Claim 22
Dependent Claim
42 words
The color photograhic material as set forth in claim 1, wherein the electron donating group of X is a straight or branched chain alkyl group, a straight or branched chain alkoxy group, an alkylthio group, an arylthio group, or an acylamino group.
Claim 23
Dependent Claim
28 words
The photographic unit for a color diffusion transfer process as set forth in claim 5, wherein the group giving a hydroxyl group upon hydrolysis is an acyloxy group.
Claim 24
Dependent Claim
41 words
The photographic unit for a color diffusion transfer process as set forth in claim 21, wherein the said acyloxy group is an acetoxy group, a benxoyloxy group, a p-nitro-benzoyloxy group, a methane sulfonyloxy group, a p-toluenesulfonyloxy group, or a propionyloxy group.
Claim 25
Dependent Claim
50 words
The photographic unit for a color diffusion transfer process as set forth in claim 5, wherein the dye represented by Col is an azo dye, an azomethine dye, an indoaniline dye, an indophenol dye, a triphenylmethane dye, an anthraquinone dye, an indigo dye, or metal complex salts of these dyes.
Claim 26
Dependent Claim
34 words
The photographic unit for a color diffusion transfer process as set forth in claim 5, wherein the said dye or group giving a dye upon hydrolysis has a group capable of providing water solublity.
Claim 27
Dependent Claim
40 words
The photographic unit for a color diffusion transfer process as set forth in claim 24, wherein the group capable of providing water solubility is a hydroxy group, a sulfonic acid or salts thereof, a sulfonamide group, or a carboxy group.
Claim 28
Dependent Claim
39 words
The photographic unit for a color diffusion transfer processes set forth in claim 5, wherein the alkyl group of R is a straight chain or branched chain alkyl group having 1 to 24 carbon atoms, which may be substituted.
Claim 29
Dependent Claim
47 words
The photographic unit for a color diffusion transfer process as set forth in claim 5, wherein the electron donating group of X is a straight or branched chain alkyl group, a straight or branched chain alkoxy group, an alkylthio group, an arylthio group, or an acylamino group.
Claim 30
Dependent Claim
32 words
The photographic unit for a color diffusion transfer process as set forth in claim 5, wherein the said group which yields a dye upon hydrolysis is an acylated auxochrome of the dye.
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) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |