US3986878A
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Silver halide photographic emulsion
Assignee: Fujifilm Holdings Corp
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Filing: 1975-09-04
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Granted: 1976-10-19
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Expires: 1995-09-04
Abstract
Abstract A silver halide photographic emulsion containing, in supersensitizing amounts, at least one sensitizing dye represented by the following general formula (I) ##EQU1## wherein Z 11 represents the atoms necessary to complete a thiazole nucleus, a selenazole nucleus, a benzothiazole nucleus, a benzoselenazole nucleus, a naphthothiazole nucleus or a naphthoselenazole nucleus; Z 12 represents the atoms necessary to complete a naphthothiazole nucleus, or a naphthoselenazole nucleus; and R 11 and R 12 each represents an aliphatic group with at least one of R 11 and R 12 having a carboxy or sulfo group; and at least one sensitizing dye represented by the following general formula (II) ##EQU2## wherein Z 21 represents the atoms necessary to complete a thiazole nucleus, a benzothiazole nucleus, a naphthothiazole nucleus, a selenazole nucleus, a benzoselenazole nucleus or a naphthoselenazole nucleus; Z 22 represents the atoms necessary to complete an imidazole nucleus, a benzimidazole nucleus or a naphthoimidazole nucleus; and R 21 and R 22 each represents an aliphatic group with at least one of R 21 and R 22 having a carboxy or sulfo group.
Inventors
- 👤 Masanao Hinata
- 👤 Haruo Takei
- 👤 Akira Sato
- 👤 Tadashi Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:35
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/28; G03C1/29; C; C09; C09B; C09B23/00; C09B23/02; C09B23/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
179 words
A silver halide photographic emulsion containing, is supersensitizing amounts, at least one sensitizing dye represented by the following general formula (I) ##EQU3## wherein Z 11 represents the atoms necessary to complete a thiazole nucleus, a selenazole nucleus, a benzothiazole nucleus, a benzoselenazole nucleus, a naphthothiazole nucleus or a naphthoselenazole nucleus; Z 12 represents the atoms necessary to complete a naphthothiazole nucleus, or a naphthoselenazole nucleus; and R 11 and R 12 each represents an aliphatic group with at least one of R 11 and R 12 having a carboxy or sulfo group; and at least one sensitizing dye represented by the following general formula (II) ##EQU4## wherein Z 21 represents the atoms necessary to complete a thiazole nucleus, a benzothiazole nucleus, a naphthothiazole nucleus, a selenazole nucleus, a benzoselenazole nucleus or a napththoselenazole nucleus; Z 22 represents the atoms necessary to complete an imidazole nucleus, a benzimidazole nucleus or a naphthoimidazole nucleus; and R 21 and R 22 each represents an aliphatic group with at least one of R 21 and R 22 having a carboxy or sulfo group.
Claim 2
Dependent Claim
179 words
A silver halide photographic emulsion containing, is supersensitizing amounts, at least one sensitizing dye represented by the following general formula (I) ##EQU3## wherein Z 11 represents the atoms necessary to complete a thiazole nucleus, a selenazole nucleus, a benzothiazole nucleus, a benzoselenazole nucleus, a naphthothiazole nucleus or a naphthoselenazole nucleus; Z 12 represents the atoms necessary to complete a naphthothiazole nucleus, or a naphthoselenazole nucleus; and R 11 and R 12 each represents an aliphatic group with at least one of R 11 and R 12 having a carboxy or sulfo group; and at least one sensitizing dye represented by the following general formula (II) ##EQU4## wherein Z 21 represents the atoms necessary to complete a thiazole nucleus, a benzothiazole nucleus, a naphthothiazole nucleus, a selenazole nucleus, a benzoselenazole nucleus or a napththoselenazole nucleus; Z 22 represents the atoms necessary to complete an imidazole nucleus, a benzimidazole nucleus or a naphthoimidazole nucleus; and R 21 and R 22 each represents an aliphatic group with at least one of R 21 and R 22 having a carboxy or sulfo group.
Claim 3
Dependent Claim
125 words
The silver halide photographic emulsion as described in claim 1, wherein the sensitizing dye represented by the general formula (I) has the general formula (III) ##STR5## wherein Z 31 represents the atoms necessary to complete a benzothiazole nucleus or a naphthothiazole nucleus; Z 32 represents the atoms necessary to complete a naphthothiazole nucleus; R 31 represents an --A 31 --SO 3 H group or an --A 31 --COOH group, wherein A 31 represents an alkylene group which may be substituted with a hydroxy group; R 32 represents an alkyl group which may be substituted with a hydroxy group, an --A 32 --SO 3 H group or an --A 32 --COOH group, wherein A 32 is the same as defined with respect to A 31 .
Claim 4
Dependent Claim
142 words
The silver halide photographic emulsion as described in claim 1, wherein the sensitizing dye represented by the general formula (II) has the general formula (IV) ##STR6## wherein Z 41 represents the atoms necessary to complete a naphthothiazole nucleus; Z 42 represents the atoms necessary to complete a benzimidazole nucleus or a naphthoimidazole nucleus; R 41 represents an alkyl group which may be substituted with a hydroxy group, an --A 41 --SO 3 H group or an --A 41 --COOH group wherein A 41 represents an alkylene group which may be substituted with a hydroxy group; R 42 represents an --A 42 --SO 3 H group or an --A 42 --COOH group wherein A 42 is the same as defined with respect to A 41 ; and R 43 represents an alkyl group, a hydroxyalkyl group, an acyloxyalkyl group or an alkoxyalkyl group.
Claim 5
Dependent Claim
257 words
The silver halide photographic emulsion as described in claim 1, wherein the sensitizing dye represented by the general formula (I) has the general formula (III) ##STR7## wherein Z 31 represents the atoms necessary to complete a benzothiazole nucleus or a naphthothiazole nucleus; Z 32 represents the atoms necessary to complete a naphthothiazole nucleus; R 31 represents an --A 31 --SO 3 H group or an --A 31 --COOH group, wherein A 31 represents an alkylene group which may be substituted with a hydroxy group; R 32 represents an alkyl group which may be substituted with a hydroxy group, an --A 32 --SO 3 H group or an A 32 --COOH group wherein A 32 is the same as defined with respect to A 31 ; and the sensitizing dye represented by the general formula (II) has the general formula (IV) ##STR8## wherein Z 41 represents the atoms necessary to complete a naphthothiazole nucleus; Z 42 represents the atoms necessary to complete a benzimidazole nucleus or a naphthoimidazole nucleus; R 41 represents an alkyl group which may be substituted with a hydroxy group, an --A 41 --SO 3 H group or an --A 41 --COOH group wherein A 41 represents an alkylene group which may be substituted with a hydroxy group; R 42 represents an --A 42 --SO 3 H group or an --A 42 --COOH group wherein A 42 is the same as defined with respect to A 41 ; and R 43 represents an alkyl group, a hydroxyalkyl group, an acyloxyalkyl group or an alkoxyalkyl group.
Claim 6
Dependent Claim
243 words
The silver halide photographic emulsion as described in claim 1, wherein the sensitizing dye represented by the general formula (I) has the general formula (V) ##SPC6## wherein Z 51 represents the atoms necessary to complete a benzothiazole nucleus or a naphtho[1,2-d]thiazole nucleus, said benzothiazole nucleus being substituted in the 5-position thereof with a halogen atom; R 51 represents an --A 31 --SO 3 H group or an --A 31 --COOH group wherein A 31 represents an alkylene group which may be substituted with a hydroxy group; R 52 represents an alkyl group which may e substituted with a hydroxy group; and Y 52 represents a hydrogen atom or a halogen atom; and the sensitizing dye represented by the general formula (II) has the general formula (IV) ##STR9## wherein Z 41 represents the atoms necessary to complete a naphthothiazole nucleus; Z 42 represents the atoms necessary to complete a benzimidazole nucleus or a naphthoimidazole nucleus; R 41 represents an alkyl group which may be substituted with a hydroxy group, an --A 41 --SO 3 H group or an --A 41 --COOH group wherein A 41 represents an alkylene group which may be substituted with a hydroxy group; R 42 represents an --A 42 --SO 3 H group or an --A 42 --COOH group wherein A 42 is the same as defined with respect to A 41 ; and R 43 represents an alkyl group, a hydroxyalkyl group, an acyloxyalkyl group or an alkoxyalkyl group.
Claim 7
Dependent Claim
268 words
The silver halide photographic emulsion as described in claim 1, wherein the sensitizing dye represented by the general formula (I) has the general formula (III) ##STR10## wherein Z 31 represents the atoms necessary to complete a benzothiazole nucleus or a naphthothiazole nucleus; Z 32 represents the atoms necessary to complete a naphthothiazole nucleus; R 31 represents an --A 31 --SO 3 H group or an --A 31 --COOH group wherein A 31 represents an alkylene group which may be substituted with a hydroxy group; R 32 represents an alkyl group which may be substituted with a hydroxy group, an --A 32 --SO 3 H group or an --A 32 --COOH group wherein A 32 is the same as defined with respect to A 31 ; and the sensitizing dye represented by the general formula (II) has the general formula (VI) ##SPC7## wherein R 61 represents an alkyl group which may be substituted with a hydroxy group, a--A 41 --SO 3 H group or a --A 41 --COOH group wherein A 41 represents an alkylene group which may be substituted with a hydroxy group; R 62 represents a--A 42 --SO 3 H group or a --A 42 --COOH group wherein A 42 is the same as defined with respect to A 41 ; R 63 represents an alkyl group, a hydroxyalkyl group, an acyloxyalkyl group or an alkoxyalkyl group; Y 61 represents a hydrogen atom, an alkyl group or a halogen atom; Y 62 represents a hydrogen atom or a halogen atom; and Y 63 represents a hydrogen atom, a halogen atom, an alkylsulfonyl group or an alkoxycarbonyl group.
Claim 8
Dependent Claim
243 words
The silver halide photographic emulsion as described in claim 1, wherein the sensitizing dye represented by the general formula (I) has the general formula (V) ##SPC8## wherein Z 51 represents the atoms necessary to complete a benzothiazole nucleus or a naphtho[1,2-d]thiazole nucleus; R 51 represents a --A 31 --SO 3 H group or a --A 31 --COOH group, wherein A 31 represents an alkylene group which may be substituted with a hydroxy group; R 52 represents an alkyl group which may be substituted with a hydroxy group; and Y 52 represents a hydrogen atom or a halogen atom; and the sensitizing dye represented by the general formula (II) has the general formula (VI) ##SPC9## wherein R 61 represents an alkyl group which may be substituted with a hydroxy group, a --A 41 --SO 3 H group or a --A 41 --COOH group wherein A 41 represents an alkylene group which may be substituted with a hydroxy group; R 62 represents a --A 42 --SO 3 H group or a --A 42 --COOH group wherein R 42 is the same as defined with respect to A 41 ; R 63 represents an alkyl group, a hydroxyalkyl group, an acyloxyalkyl group or an alkoxyalkyl group; Y 61 represents a hydrogen atom, an alkyl group or a halogen atom; Y 62 represents a hydrogen atom or a halogen atom; and Y 63 represents a hydrogen atom, a halogen atom, an alkylsulfonyl group or an alkoxycarbonyl group.
Claim 9
Dependent Claim
31 words
The silver halide photographic emulsion as described in claim 7, wherein R 51 represents an unsubstituted sulfoalkyl group or an unsubstituted carboxyalkyl group, and R 52 represents an unsubstituted alkyl group.
Claim 10
Dependent Claim
49 words
The silver halide photographic emulsion as described in claim 7, wherein R 61 and R 62 each represents an unsubstituted carboxyalkyl group or an unsubstituted sulfoalkyl group; R 63 represents an alkyl group; Y 61 represents a hydrogen atom; and Y 62 and Y 63 both represent halogen atoms.
Claim 11
Dependent Claim
80 words
The silver halide photographic emulsion as described in claim 7, wherein R 51 represents an unsubstituted sulfoalkyl group or an unsubstituted carboxyalkyl group; R 52 represents an unsubstituted alkyl group; R 61 represents an unsubstituted alkyl group, an unsubstituted carboxyalkyl group or an unsubstituted sulfoalkyl group; R 62 represents an unsubstituted carboxyalkyl group or an unsubstituted sulfoalkyl group; R 63 represents an alkyl group; Y 61 represents a hydrogen atom; and Y 62 and Y 63 both represents halogen atoms.
Claim 12
Dependent Claim
58 words
The silver halide photographic emulsion as described in claim 1, wherein the sensitizing dye represented by the general formula (I) and the sensitizing dye represented by the general formula (II) each is present in an amount of from about 2 × 10 - 2 mol to about 1 × 10 - 3 mol per mol of silver halide.
Claim 13
Dependent Claim
42 words
The silver halide photographic emulsion as described in claim 11, wherein the sensitizing dye represented by the general formula (I) is present in a molar proportion of from about 1:10 to 10:1 to the sensitizing dye represented by the general formula (II).
Claim 14
Dependent Claim
15 words
The silver halide photographic emulsion as described in claim 1, additionally containing a yellow-forming coupler.
Claim 15
Dependent Claim
15 words
The silver halide photographic emulsion as described in claim 4, additionally containing a yellow-forming coupler.
Claim 16
Dependent Claim
15 words
The silver halide photographic emulsion as described in claim 7, additionally containing a yellow-forming coupler.
Claim 17
Dependent Claim
17 words
A photographic light-sensitive material, which comprises a support having thereon the photographic emulsion described in claim 1.
Claim 18
Dependent Claim
37 words
A color photographic light-sensitive material, which comprises at least two differently sensitive silver halide emulsion layers, at least one layer containing a coupler and at least one layer comprising the photographic emulsions as described in claim 1.
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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |