Patent US3840376A successfully refreshed from Google Patents.
US3840376A
Expired / Lapsed
US
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Supersensitized color photographic material
Assignee: Individual
•
Filing: 1972-04-28
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Granted: 1974-10-08
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Expires: 1992-04-28
Abstract
Abstract A green-sensitive silver halide photographic emulsion for use in photographic materials containing dye developers suitable for the diffusion transfer process containing, in combination, at least one of the sensitizing dyes represented by the formula I. wherein Y is selected from the group consisting of a sulfur atom and a selenium atom, Z represents a divalent group necessary to form a benzene ring, which may be substituted, Z1 represents a divalent group necessary to form a benzene ring, which may be substituted, R5 and R6 are each selected from the group consisting of an alkyl group, a substituted alkyl group which is conventionally present in cyanine dyes and an allyl group, at least one of R5 and R6 being an alkyl group or a substituted alkyl group containing a group selected from the group consisting of a carboxyl group and a sulfo group, X2 is an anion, p is an integer of from 1 to 2, said dye forming an intramolecular salt when p is 1, is disclosed. wherein R1, R2, R3 and R4 are each selected from the group consisting of an alkyl group which is conventionally used in cyanine dyes and an allyl group, at least one of R1 and R2 being an alkyl group or a substituted alkyl group containing a group selected from the group consisting of a carboxyl group and a sulfo group; Y1 and Y2 are each selected from the group consisting of a hydrogen atom and a halogen atom, Y2 and Y4 are each selected from the group consisting of a hydrogen atom, a halogen atom, an alkoxy group, an amino group, an acylamido group, an acyloxy group, an alkoxycarbonylamino group, a cyano group, a trifluoromethyl group, an alkylsulfonyl group, a sulfamyl group, an alkylaminosulfonyl group, a morpholinosulfonyl group, an alkoxycarbonyl group, and a piperidinosulfonyl group, X1 represents an anion and n is an integer of from 1 to 2, said dye forming an intramolecular salt when n is 1, and at least one of the sensitized dyes represented by the formula II
Inventors
- 👤 Y Yoshida
- 👤 A Sato
- 👤 M Hinata
- 👤 Y Oishi
- 👤 K Shiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:28
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/28; G03C1/29; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/118
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
69 words
A PHOTOSENSITIVE MATERIAL FOR USE IN A SILVER DIFFUSION TRANSFER PROCESS, WHICH COMPRISES A GREEN-SENSITIVE SILVER HALIDE PHOTOGRAPHIC EMULSION COATED ON A SUPPORT AND HAVING AN AZO OR AN ANTHRAQUINONE DYE DEVELOPER OF THE TYPE USED IN SILVER DIFFUSION TRANSFER PROCESS IN SAID EMULSION OR IN A PHOTOGRAPHIC LAYER ADJACENT SAID EMULSION, SAID EMULSION CONTAINING, IN COMBINATION, AT LEAST ONE OF THE SENSITIZING DYES REPRESENTED BY THE FORMULA I
Claim 2
Dependent Claim
69 words
A PHOTOSENSITIVE MATERIAL FOR USE IN A SILVER DIFFUSION TRANSFER PROCESS, WHICH COMPRISES A GREEN-SENSITIVE SILVER HALIDE PHOTOGRAPHIC EMULSION COATED ON A SUPPORT AND HAVING AN AZO OR AN ANTHRAQUINONE DYE DEVELOPER OF THE TYPE USED IN SILVER DIFFUSION TRANSFER PROCESS IN SAID EMULSION OR IN A PHOTOGRAPHIC LAYER ADJACENT SAID EMULSION, SAID EMULSION CONTAINING, IN COMBINATION, AT LEAST ONE OF THE SENSITIZING DYES REPRESENTED BY THE FORMULA I
Claim 3
Dependent Claim
57 words
The photosensitive material of claim 1, in which said emulsion contains, in combination, at least one of the sensitizing dyes represented by the formula (I) in which at least two of Y2, Y3 and Y4 are a halogen atom and at least one of the sensitizing dyes, within the formula (II), is represented by the formula (II'')
Claim 4
Dependent Claim
20 words
The photosensitive material of claim 2, wherein said alkyl group for R is a methyl group or an ethyl group.
Claim 5
Dependent Claim
38 words
The photosensitive material of claim 1, wherein said substituted alkyl group for R1, R2, R3, R4, R5 and R6 is an alkyl group containing substituents selected from the group consisting of hydroxy, acetoxy, alkoxy, carboxy, sulfo, and aryl.
Claim 6
Dependent Claim
37 words
The photosensitive material of claim 1, wherein said sensitizing dye of the formula I and said sensitizing dye of the formula II are present in said emulsion in a molar ratio of from about 9:1 to 1:9.
Claim 7
Dependent Claim
22 words
The photosensitive material of claim 1, wherein said silver halide is silver chloride, silver bromide, silver iodobromide, silver chlorobromide or silver chloroiodobromide.
Claim 8
Dependent Claim
13 words
The photosensitive material of claim 6, wherein said silver halide is silver iodobromide.
Claim 9
Dependent Claim
15 words
The photosensitive material of claim 1 wherein said dye developer is an azo dye developer.
Claim 10
Dependent Claim
15 words
The photosensitive material of claim 1 wherein said dye developer is an anthraquinone dye developer.
Claim 11
Dependent Claim
46 words
The photosensitive material of claim 1 wherein said R1, R2, R3, R4, R5 or R6 is a substituted alkyl group and said substituent is selected from the group consisting of hydroxy, acetoxy, alkoxy, carboxy, carboxyalkoxy, carboxyaryl, sulfo, sulfohydroxy, sulfoalkoxy, sulfoacetoxy, sulfoalkoxyalkoxy, sulfo-alkoxyhydroxy, sulfoaryl, aryl and vinyl.
Claim 12
Dependent Claim
24 words
The photosensitive material of claim 1 wherein said dye developer comprises a dye moiety and a second moiety capable of developing exposed silver halide.
Claim 13
Dependent Claim
26 words
The photosensitive material of claim 11 wherein said dye developer is non-diffusible normally but is rendered diffusible in the presence of an alkaline photographic procesSing solution.
Claim 14
Dependent Claim
37 words
The photosensitive material of claim 11 wherein said dye moiety is an azo dye moiety or an anthraquinone dye moiety, and wherein said second moiety comprises an aromatic developing moiety which forms a quinone substance upon oxidation.
Claim 15
Dependent Claim
31 words
The photosensitive material of claim 13 wherein said second moiety comprises a hydroquinonyl group, an ortho-di-hydroxy phenyl group, an ortho-amino substituted hydroxy phenyl group or a para-amino substituted hydroxy phenyl group.
Claim 16
Dependent Claim
50 words
The photosensitive material of claim 11 wherein said substituted alkyl group of said R1, R2, R3, R4, R5 and R6 is selected from the group consisting of 2-hydroxyethyl; 4-hydroxybutyl; 2-acetoxyethyl; 3-carboxypropyl; 2-(2-carboxyethoxy)ethyl; p-carboxybenzyl; 2-sulfoethyl; 3-sulfopropyl; 3-sulfobutyl; 4-sulfobutyl; 2-hydroxy-3-sulfopropyl; 2-(3-sulfopropoxy)ethyl; 2-acetoxy-3-sulfopropyl; 3-methoxy-2-(3-sulfopropoxy)propyl; 2-(2-(3-sulfopropoxy) ethoxy)ethyl; 2-hydroxy-3-(3''-sulfopropoxy)propyl; p-sulfophenethyl; p-sulfobenzyl; benzyl; phenylethyl and allyl.
Claim 17
Dependent Claim
42 words
The photosensitive material of claim 11 wherein said Y2 and Y4 are each selected from the group consisting of hydrogen, chlorine, bromine, iodine, fluorine, methoxy, ethoxy, butoxy, amino, methylamino, dimethylamino, acetoamido, acetoxy, ethoxycarbonylamino, cyano, trifluoromethyl, methylsulfonyl, sulphamyl, ethylaminosulfonyl, diethylaminosulfonyl, methoxycarbonyl and ethoxycarbonyl.
Claim 18
Dependent Claim
35 words
The photosensitive material of claim 2 wherein said emulsion contains at least one of the sensitizing dyes represented by said formula I and at least one of the sensitizing dyes represented by the following formula
Claim 19
Dependent Claim
34 words
The photosensitive material of claim 1 wherein the amounts of sensitizing dyes present in said emulsion is within the range of from 0.005 to 0.3 gram per mole of silver halide in said emulsion.
Claim 20
Independent Claim
100 words
A method for increasing the green sensitization of the silver halide photographic emulsion of a photosensitive material comprising said emulsion coated onto a support, wherein an azo or an anthroguinone dye developer of the type used in silver diffusion transfer processes is contained in said emulsion or in a layer adjacent the silver halide emulsion layer, said dye developer having a dye moiety and a second moiety capable of developing exposed silver halide, said method comprising adding to said emulsion a super-sensitizing combination of sensitizing dyes comprising, in combination, at least one of the sensitizing dyes represented by the formula
Claim 21
Independent Claim
100 words
A method for increasing the green sensitization of the silver halide photographic emulsion of a photosensitive material comprising said emulsion coated onto a support, wherein an azo or an anthroguinone dye developer of the type used in silver diffusion transfer processes is contained in said emulsion or in a layer adjacent the silver halide emulsion layer, said dye developer having a dye moiety and a second moiety capable of developing exposed silver halide, said method comprising adding to said emulsion a super-sensitizing combination of sensitizing dyes comprising, in combination, at least one of the sensitizing dyes represented by the formula
Claim 22
Dependent Claim
50 words
The method of claim 19 wherein, in at least one of the sensitizing dyes represented by said formula (I), at least two of said Y2, Y3 and Y4 are halogen atoms, and wherein at least one of the sensitizing dyes, within said formula (II), is represented by the formula (II'')
Claim 23
Dependent Claim
45 words
The method of claim 19 wherein said R1, R2, R3, R4, R5 or R6 is a substituted alkyl group and said substituent is selected from the group consisting of hydroxy, acetoxy, alkoxy, carboxy, carboxyalkoxy, carboxyaryl, sulfo, sulfohydroxy, sulfoalkoxy, sulfoacetoxy, sulfoalkoxyalkoxy, sulfoalkoxyhydroxy, sulfoaryl, aryl and vinyl.
Claim 24
Dependent Claim
30 words
The method of claim 19 wherein the molar ratio of said sensitizing dye of said formula I to said sensitizing dye of said formula II ranges from 9:1 to 1:9.
Claim 25
Dependent Claim
21 words
The method of claim 19 wherein said silver halide is silver chloride, silver bromide, silver iodobromide, silver chlorobromide, or silver chloroiodobromide.
Claim 26
Dependent Claim
43 words
The method of claim 19 wherein said dye moiety of said dye developer is an azo dye or an anthraquinone dye moiety, and wherein said second moiety of said dye developer comprises an aromatic developing moiety which forms a quinone substance upon oxidation.
Claim 27
Dependent Claim
45 words
The photosensitive material of claim 1 wherein R1, R2, R3, R4, R5 or R6 is an alkyl group selected from the class consisting of a hydroxyalkyl group, an acetoxyalkyl group, an alkoxyalkyl group, a carboxy-containing alkyl group and an alkyl group containing a sulfo group.
Claim 28
Dependent Claim
44 words
The method of claim 19 wherein R1, R2, R3, R4, R5 or R6 is an alkyl group selected from the class consisting of a hydroxyalkyl group, an acetoxyalkyl group, an alkoxyalkyl group, a carboxy-containing alkyl group and an alkyl group containing a sulfo group.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |