US4772542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic material
Assignee: Konica Minolta Inc
•
Filing: 1987-09-11
•
Granted: 1988-09-20
•
Expires: 2007-09-11
Abstract
Abstract A silver halide photographic material is disclosed. The material has at least one silver halide emulsion layer on a support, said silver halide emulsion layer containing a coupler which forms a mobile dye by coupling reaction with the oxidized product of a color developing agent, and said silver halide emulsion layer having in association therewith a non-light sensitive layer containing substantially non-light sensitive fine silver halide grains.
Inventors
- 👤 Yoshihiro Haga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:30
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/20; G03C7/30; G03C7/3029; G03C7/32; G03C7/36; G03C7/38
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
125 words
A silver halide photographic material having formed on a support at least one unit structure consisting of two or more silver halide emulsion layers which are sensitive to light of substantially the same color but which have different sensitivities, one of said silver halide emulsion layers having a highest sensitivity containing a coupler which forms a mobile dye by coupling reaction with an oxidized product of a color developing agent and said silver halide emulsion layer with said highest sensitivity having in association therewith a non-light-sensitive layer containing substantially non-light-sensitive fine silver halide grains, said non-light-sensitive layer adjoining said silver halide emulsion layer with said highest sensitivity, said silver halide emulsion layer with said highest sensitivity being positioned furthest from said support in said unit.
Claim 2
Dependent Claim
125 words
A silver halide photographic material having formed on a support at least one unit structure consisting of two or more silver halide emulsion layers which are sensitive to light of substantially the same color but which have different sensitivities, one of said silver halide emulsion layers having a highest sensitivity containing a coupler which forms a mobile dye by coupling reaction with an oxidized product of a color developing agent and said silver halide emulsion layer with said highest sensitivity having in association therewith a non-light-sensitive layer containing substantially non-light-sensitive fine silver halide grains, said non-light-sensitive layer adjoining said silver halide emulsion layer with said highest sensitivity, said silver halide emulsion layer with said highest sensitivity being positioned furthest from said support in said unit.
Claim 3
Dependent Claim
127 words
A silver halide photographic material according to claim 1, wherein said coupler is represented by the following formula (I): ##STR8## wherein COUP represents the coupler nucleus which forms a dye; the stabilizing group is a group which is bound to the coupling site on said nucleus and which is split off therefrom upon coupling reaction between said coupler and the oxidized product of a color developing agent, said stabilizing group having a sufficient molecular size and shape to render said coupler nondiffusible; and the adjusting group is a group which is bound to a non-coupling site with respect to said necleus and which has a size and shape sufficient to impart mobility to the dye formed by the coupling reaction between said coupler and said oxidized product.
Claim 4
Dependent Claim
26 words
A silver halide photographic material according to claim 2, wherein the adjusting group in said formula (I) is a group having 1 to 20 carbon atoms.
Claim 5
Dependent Claim
26 words
A silver halide photographic material according to claim 2, wherein the stabilizing group in said formula (I) is a group having 8 to 32 carbon atoms.
Claim 6
Dependent Claim
19 words
A silver halide photographic material according to claim 4, wherein said stabilizing group is an alkyl or phenyl group.
Claim 7
Dependent Claim
78 words
A silver halide photographic material according to claim 2, wherein said coupler represented by formula (I) is a coupler represented by the following formula (II): ##STR9## wherein R 1 is an aryl or alkyl group; R 2 is the stabilizing group defined in formula (I); R 3 is the adjusting group defined in formula (I); and R 4 is a hydrogen or halogen atom, an alkyl, alkoxy or sulfamoyl group or the adjusting group defined in formula (I).
Claim 8
Dependent Claim
110 words
A silver halide photographic material according to claim 2, wherein said coupler represented by formula (I) is a coupler represented by the following formula (III) cr (IV): ##STR10## wherein R 5 is the stabilizing group defined in formula (I); R 6 , R 7 and R 8 each represents a hydrogen or halogen atom, an alkyl, alkoxy or alklamido group or the adjusting group defined in formula (I), provided that one of R 6 , R 7 , and R 8 is the adjusting group defined in formula (I); R 9 has the same meaning as R 5 ; and R 10 is the adjusting group defined in formula (I).
Claim 9
Dependent Claim
148 words
A silver halide photographic material according to claim 2, wherein said coupler represented by formula (I) is a coupler represented by the following formula (V), (VI) or (VII): ##STR11## wherein R 11 is the stabilizing group defined in formula (I); R 12 is the adjusting group defined in formula (I); Ar is a pheny group; R 13 has the same meaning as R 11 ; R 14 and R 15 each is a hydrogen atom, an alkyl, alkoxy, aryl, amino or acylamino group or the adjusting group defined in formula (I), provided that either R 14 or R 15 is the adjusting group defined in Formula (I); R 16 has the same meaning as R 11 ; either R 17 or R 18 is the adjusting group defined in formula (I), the other one being a hydrogen atom or an alkyl, alkoxy, aryl, amino, acylamino or ureido group.
Claim 10
Dependent Claim
57 words
A silver halide photographic material according to claim 6, wherein the adjusing group represented by R 3 and R 4 in said formula (II) is a group selected from the group consisting of hydrogen and halogen atoms and carboxy hydroxy, nitro, cyano, alkyl, alkoxy, aryloxy, sulfonamido, acylamino, carbamoyl, sulfamoyl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, sulfonoxy, ureido and alkylsulfonyl groups.
Claim 11
Dependent Claim
48 words
A silver halide photographic material according to claim 7, wherein the adjusting group represented by R 6 , R 7 and R 8 in said formula (III) is a group selected from the group consisting of hydrogen and halogen atoms and alkyl, alkoxy, acylamino, sulfonamido and ureido groups.
Claim 12
Dependent Claim
25 words
A silver halide photographic material according to claim 7, wherein the adjusting group represented by R 10 in said formula (IV) is a carbamoyl group.
Claim 13
Dependent Claim
48 words
A silver halide photographic material according to claim 8, wherein the adjusting group represented by R 12 in said formula (V) and by R 17 and R 18 in said formula (VII) is a group selected from the group consisting of alkyl, acylamino, anilino, ureido and pyrolidinyl groups.
Claim 14
Dependent Claim
47 words
A silver halide photographic material according to claim 8, wherein the adjusting group represented by R 14 and R 15 in said formula (VI) is a group selected from the group consisting of a halogen atom and alkyl, alkoxy, aryl, acylamino, alkylthio, amino, alkylcarbamoyl and aralkyl groups.
Claim 15
Dependent Claim
16 words
A silver halide photographic material according to claim 1, wherein said coupler is a nondiffusible coupler.
Claim 16
Dependent Claim
31 words
A silver halide photographic material according claim 1, wherein said coupler is incorporated in the emulsion layer having the highest sensitivity in an amount of 0.01 to 0.2 mol/mol of silver.
Claim 17
Dependent Claim
25 words
A silver halide photographic material according to claim 1, wherein said fine silver halide grains have an average grain size of 0.02 to 0.2 μ.
Claim 18
Dependent Claim
36 words
A silver halide photographic material according to claim 1, wherein said fine silver halide grains are incorporated in the non-light sensitive layer in an amount of 0.01 to 1 g/m 2 in terms of silver (Ag).
Claim 19
Dependent Claim
20 words
A silver halide photographic material according to claim 1 wherein said unit structure consists of three silver halide emulsion layers.
Claim 20
Dependent Claim
18 words
A silver halide photographic material according to claim 1 wherein said silver halide emulsion layers are panchromatically sensitized.
Claim 21
Independent Claim
140 words
A method of forming color negative images by imagewise exposing a silver halide phtographic material and then processing the exposed material with a color developer, said material having formed on a support at least one unit structure comprising two silver halide emulsion layers which are sensitive to light of substantially the same color but which have different sensitivites, one of said silver halide emulsion layers having a highest sensitivity containing a coupler which forms a mobile dye by coupling reaction with an oxidized product of a color developing agent, and said silver halide emulsion layer with the highest sensitivity having in association therewith a non-light-sensitive layer containing substantially non-light-sensitive fine silver halide grains, said non-light-sensitive layer being positioned adjacent to said silver halide emulsion layer having the highest sensitivity in the unit and in a place furthest from said support.
Claim 22
Independent Claim
140 words
A method of forming color negative images by imagewise exposing a silver halide phtographic material and then processing the exposed material with a color developer, said material having formed on a support at least one unit structure comprising two silver halide emulsion layers which are sensitive to light of substantially the same color but which have different sensitivites, one of said silver halide emulsion layers having a highest sensitivity containing a coupler which forms a mobile dye by coupling reaction with an oxidized product of a color developing agent, and said silver halide emulsion layer with the highest sensitivity having in association therewith a non-light-sensitive layer containing substantially non-light-sensitive fine silver halide grains, said non-light-sensitive layer being positioned adjacent to said silver halide emulsion layer having the highest sensitivity in the unit and in a place furthest from said support.
Claim 23
Dependent Claim
140 words
A method of forming color negative images according to claim 20, wherein said coupler is represented by formula (II): ##STR12## wherein R 1 is an aryl or alkyl group; R 2 is a stabilizing group which is bound to the coupling site on said nucleus and which is split off therefrom upon coupling reaction between said coupler and the oxidized product of a color developing agent, said stabilizing group having a sufficient molecular size and shape to render said coupler non-diffusible; R 3 is an adjusting group which is bound to a non-coupling site with respect to said nucleous and which has a size and shape sufficient to impart mobility to the dye formed by the coupling reaction between said coupler and said oxidized product; and R 4 is a hydrogen, halogen, alkyl, alkoxy, or sulfamoyl or said adjusting group.
Claim 24
Dependent Claim
83 words
A method of forming color negative images according to claim 20, wherein said coupler is represented by formulas (III) or (IV): ##STR13## wherein R 5 is said stabilizing group; R 6 , R 7 and R 8 each represents hydrogen, halogen, alkyl, alkoxy, alkylamido or said adjusting group; provided that at least one of R 6 , R 7 and R 8 is said adjusting group; R 9 has the same meaning as R 5 ; and R 10 is said adjusting group.
Claim 25
Dependent Claim
21 words
A method of forming color negative images according to claim 20, wherein said silver halide emulsion is a core-shell type emulsion.
Claim 26
Dependent Claim
22 words
A method of forming color negative images according to claim 20 wherein said unit structure consists of three silver halide emulsion layers.
Claim 27
Dependent Claim
130 words
A silver halide photographic material having formed on a support at least one unit structure consisting of two or more silver halide emulsion layers which are sensitive to light of substantially the same color but which have different sensitivities, one of said silver halide emulsion layers having a highest sensitivity containing a coupler which forms a mobile dye by coupling reaction with an oxidized product of a color developing agent and said silver halide emulsion layer with said highest sensitivity having in association therewith a non-light-sensitive layer containing substantially non-light-sensitive fine silver halide grains and being positioned farther away from the support in said unit, said non-light-sensitive layer adjoining said silver halide emulsion layer with said highest sensitivity, said non-light-sensitive layer being positioned furthest from said support in said unit.
Claim 28
Dependent Claim
130 words
A silver halide photographic material having formed on a support at least one unit structure consisting of two or more silver halide emulsion layers which are sensitive to light of substantially the same color but which have different sensitivities, one of said silver halide emulsion layers having a highest sensitivity containing a coupler which forms a mobile dye by coupling reaction with an oxidized product of a color developing agent and said silver halide emulsion layer with said highest sensitivity having in association therewith a non-light-sensitive layer containing substantially non-light-sensitive fine silver halide grains and being positioned farther away from the support in said unit, said non-light-sensitive layer adjoining said silver halide emulsion layer with said highest sensitivity, said non-light-sensitive layer being positioned furthest from said support in said unit.
References Cited (Backward Citations)
US3364022A
Cited
US3620747A
Cited
US3728121A
Cited
GB1560965A
Cited
US4153460A
Cited
US4420556A
Cited
US4438194A
Cited
US4413054A
Cited
US4543323A
Cited
US4539289A
Cited
US4652515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |