US4046572A
Expired / Lapsed
US
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Silver halide photographic light sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1976-06-30
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Granted: 1977-09-06
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Expires: 1996-06-30
Abstract
Abstract An improved silver halide photographic light-sensitive material comprising a support having coated thereon at least one photographic emulsion layer containing a dicarbocyanine dye having two heterocyclic nuclei which are 5- or 6-membered nitrogen-containing nuclei and which are connected to each other at the carbon atom in the 2- or 4-position thereof through a pentamethine chain, which can be substituted in the meso-position, a nitrogen atom of one nitrogen-containing heterocyclic nucleus of said carbocyanine dye being substituted by a sulfo- or carboxy-containing alkyl group, and a nitrogen atom of the other nitrogen-containing heterocyclic nucleus being substituted by an aralkyl group or an aryloxyalkyl group, with the proviso that said aralkyl and aryloxyalkyl groups are not substituted by a sulfo group or a carboxyl group.
Inventors
- 👤 Masanao Hinata
- 👤 Yuji Mihara
- 👤 Akira Sato
- 👤 Tadashi Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:45
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/14; G03C1/20; G03C7/00; G03C7/30; G03C7/392; G03C7/39296
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
124 words
A silver halide photographic light-sensitive material comprising a support having coated thereon at least one photographic emulsion layer containing a dicarbocyanine dye represented by general formula (I): ##STR17## wherein R represents a sulfo group-containing alkyl group or a carboxy group-containing alkyl group, R 1 represents an aralkyl group or an aryloxyalkyl group, R 2 represents a hydrogen atom, a halogen atom, an alkyl group or an aralkyl group, p and q represent 1 or 2, n represents 1 or 2 and when n equals 1 the dye forms an intermolecular salt, X represents an anion and Z and Z 1 each represent the non-metallic atoms necessary to complete a thiazole nucleus, selenazole nucleus, oxazole nucleus, quinoline nucleus, 3,3-dialkylindolenine nucleus, imidazole nucleus or pyridine nucleus.
Claim 2
Dependent Claim
124 words
A silver halide photographic light-sensitive material comprising a support having coated thereon at least one photographic emulsion layer containing a dicarbocyanine dye represented by general formula (I): ##STR17## wherein R represents a sulfo group-containing alkyl group or a carboxy group-containing alkyl group, R 1 represents an aralkyl group or an aryloxyalkyl group, R 2 represents a hydrogen atom, a halogen atom, an alkyl group or an aralkyl group, p and q represent 1 or 2, n represents 1 or 2 and when n equals 1 the dye forms an intermolecular salt, X represents an anion and Z and Z 1 each represent the non-metallic atoms necessary to complete a thiazole nucleus, selenazole nucleus, oxazole nucleus, quinoline nucleus, 3,3-dialkylindolenine nucleus, imidazole nucleus or pyridine nucleus.
Claim 3
Dependent Claim
58 words
A silver halide photographic light-sensitive material defined by claim 1, wherein said photographic emulsion layer additionally contains a compound represented by the following general formula (IV): d--so.sub.3 m).sub.n (IV) wherein M represents a hydrogen atom or a cation which renders the compound water soluble, n represents an integer greater than 1 and D represents a polycyclic aromatic residue.
Claim 4
Dependent Claim
35 words
A silver halide photographic light-sensitive material defined by claim 1, wherein said emulsion layer is a red-sensitive emulsion layer which is present with other light-sensitive emulsion layers, all of which contain at least one coupler.
Claim 5
Dependent Claim
33 words
A silver halide color photographic light-sensitive material defined by claim 1, wherein at least three light-sensitive emulsion layers are present: a red-sensitive emulsion layer, a green-sensitive emulsion layer and a blue-sensitive emulsion layer.
Claim 6
Dependent Claim
33 words
A silver halide color photographic light-sensitive material defined by claim 4, wherein each of said red-sensitive emulsion layer, said green-sensitive emulsion layer and said blue-sensitive emulsion layer contains at least one color coupler.
Claim 7
Dependent Claim
46 words
A silver halide color photographic light-sensitive material as defined by claim 1, wherein Z and Z 1 each represents the non-metallic atoms necessary to complete a benzothiazole nucleus, a naphthothiazole nucleus or a naphthoxazole nucleus, and R 2 represents an alkyl group or an aralkyl group.
Claim 8
Dependent Claim
29 words
A silver halide color photographic light-sensitive material defined in claim 1, wherein R 1 in general formula (I) is a phenethyl group, a phenylpropyl group or a phenylbutyl group.
Claim 9
Dependent Claim
32 words
A silver halide color photographic light-sensitive material defined by claim 7 containing at least one dicarbocyanine dye selected from the group consisting of: ##STR18## wherein Me is methyl and Et is ethyl.
Claim 10
Dependent Claim
29 words
A silver halide color photographic light-sensitive material defined by claim 1, wherein R 1 in general formula (I) is a phenoxyethyl group, a phenoxypropyl group or a phenoxybutyl group.
Claim 11
Dependent Claim
40 words
A silver halide color photographic light-sensitive material defined by claim 9, wherein said dicarbocyanine dye represented by general formula (I) is at least one dye selected from the group consisting of: ##STR19## wherein Me is methyl and Et is ethyl.
Claim 12
Dependent Claim
27 words
A silver halide color photographic light-sensitive material defined by claim 1, wherein said photographic emulsion layer contains silver chloride grains, silver chloroiodide grains or silver chloroiodobromide grains.
Claim 13
Dependent Claim
20 words
A silver halide color photographic light-sensitive material defined by claim 11, wherein said photographic emulsion layer contains silver chloride grains.
Claim 14
Dependent Claim
20 words
A silver halide color photographic light-sensitive material defined by claim 11, wherein said photographic emulsion layer contains silver chloroiodide grains.
Claim 15
Dependent Claim
20 words
A silver halide color photographic light-sensitive material defined by claim 11, wherein said photographic emulsion layer contains silver chloroiodobromide grains.
Claim 16
Dependent Claim
25 words
A silver halide color photographic light-sensitive material defined by claim 13, wherein said silver chloroiodide grains have an iodide content of not more than 1%.
Claim 17
Dependent Claim
25 words
A silver halide color photographic light-sensitive material defined by claim 14, wherein said silver chloroiodobromide grains have an iodide content of not more than 1%.
Claim 18
Dependent Claim
15 words
A silver halide photographic light-sensitive material defined by claim 1, wherein R 2 is hydrogen.
Claim 19
Dependent Claim
17 words
A silver halide photographic light-sensitive material defined by claim 1, wherein R 2 is an alkyl group.
Claim 20
Dependent Claim
26 words
A silver halide photographic light-sensitive material defined by claim 1, wherein Z and Z 1 each represents the non-metallic atoms necessary to complete a thiazole nucleus.
Claim 21
Dependent Claim
26 words
A silver halide photographic light-sensitive material defined by claim 1, wherein Z and Z 1 each represents the non-metallic atoms necessary to complete a selenazole nucleus.
Claim 22
Dependent Claim
35 words
A silver halide photographic light-sensitive material defined by claim 1, wherein Z represents the non-metallic atoms necessary to complete an oxazole nucleus and Z 1 represents the non-metallic atoms necessary to complete a thiazole nucleus.
Claim 23
Independent Claim
137 words
A method of preventing diffusion sensitization and spectral sensitivity from lowering with the passage of time which comprises incorporating into at least one photographic emulsion layer of a silver halide photographic light-sensitive material a dicarbocyanine dye represented by general formula (I): ##STR20## wherein R represents a sulfo group-containing alkyl group or a carboxy-containing alkyl group, R 1 represents an aralkyl group or an aryloxyalkyl group, R 2 represents a hydrogen atom, a halogen atom, an alkyl group or an aralkyl group, p and q represent 1 or 2, n represents 1 or 2 and when n equals 1 the dye forms an intermolecular salt, X represents an anion and Z and Z 1 each represents the non-metallic atoms necessary to complete a thiazole nucleus, selenazole nucleus, oxazole nucleus, quinoline nucleus, 3,3-dialkylindolenine nucleus, imidazole nucleus or pyridine nucleus.
Claim 24
Independent Claim
137 words
A method of preventing diffusion sensitization and spectral sensitivity from lowering with the passage of time which comprises incorporating into at least one photographic emulsion layer of a silver halide photographic light-sensitive material a dicarbocyanine dye represented by general formula (I): ##STR20## wherein R represents a sulfo group-containing alkyl group or a carboxy-containing alkyl group, R 1 represents an aralkyl group or an aryloxyalkyl group, R 2 represents a hydrogen atom, a halogen atom, an alkyl group or an aralkyl group, p and q represent 1 or 2, n represents 1 or 2 and when n equals 1 the dye forms an intermolecular salt, X represents an anion and Z and Z 1 each represents the non-metallic atoms necessary to complete a thiazole nucleus, selenazole nucleus, oxazole nucleus, quinoline nucleus, 3,3-dialkylindolenine nucleus, imidazole nucleus or pyridine nucleus.
Claim 25
Dependent Claim
55 words
The method of claim 22, where there is additionally incorporated into said emulsion layer a compound represented by the following general formula (IV): d--so.sub.3 m).sub.n (IV) wherein M represents a hydrogen atom or a cation which renders the compound water soluble, n represents an integer 1 or above and D represents a polycyclic aromatic residue.
Claim 26
Dependent Claim
12 words
The method of claim 22, wherein R 2 is a hydrogen group.
Claim 27
Dependent Claim
12 words
The method of claim 22, wherein R 2 is an alkyl group.
Claim 28
Dependent Claim
21 words
The method of claim 22, wherein Z and Z 1 each represents the non-metallic atoms necessary to complete a thiazole nucleus.
Claim 29
Dependent Claim
21 words
The method of claim 22, wherein Z and Z 1 each represents the non-metallic atoms necessary to complete a selenazole nucleus.
Claim 30
Dependent Claim
30 words
The method of claim 22, wherein Z represents the non-metallic atoms necessary to complete an oxazole nucleus and Z 1 represents the non-metallic atoms necessary to complete a thiazole nucleus.
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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |