Patent US3640716A successfully refreshed from Google Patents.
US3640716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preventing color mixing in multilayer-type reversal color photographic light-sensitive materials
Assignee: Fujifilm Holdings Corp
•
Filing: 1969-05-20
•
Granted: 1972-02-08
•
Expires: 1989-05-20
Abstract
Abstract The invention is directed to a method for preventing color mixing in multilayer-type color photographic light-sensitive materials developed by the coupler-in-developer process. The multilayer light-sensitive materials used herein comprise a film base coated with a red-sensitive emulsion layer, a greensensitive emulsion layer, and a blue-sensitive emulsion layer respectively. Cyan and magenta dye formation is prevented in the blue emulsion layer by addition thereto of a ballasted yellow coupler having the general formula WHEREIN R1 represents a tertiary alkyl group, an unsubstituted cycloalkyl group, a substituted cycloalkyl group, an unsubstituted dicycloalkyl group, a substituted dicycloalkyl group, an unsubstituted aryl group or a substituted aryl group; R2 represents an unsubstituted aryl group, a substituted aryl group, an unsubstituted heterocyclic group, or a substituted heterocyclic group; and X represents a hydrogen atom or a group capable of being split off during the coupling reaction.
Inventors
- 👤 Tadashi Nagae
- 👤 Yasushi Oishi
- 👤 Jun Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:01
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/362
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
144 words
A multilayer-type reversal color photographic material of the type to be developed in color developers containing couplers, which comprises a support having thereon, a. a red-sensitive emulsion layer, b. a green-sensitive emulsion layer, and c. a blue-sensitive emulsion layer, said blue-sensitive emulsion layer containing a ballasted yellow coupler of the formula wherein R1 represents a member selected from the group consisting of a tertiary alkyl group, an unsubstituted cycloalkyl group, a substituted cycloalkyl group, an unsubstituted dicycloalkyl group, a substituted dicycloalkyl group, an unsubstituted aryl group and a substituted aryl group; R2 represents a member selected from the group consisting of an unsubstituted aryl group, a substituted aryl group, an unsubstituted heterocyclic group, and a substituted heterocyclic group; and X represents a member selected from the group consisting of a hydrogen atom and a group capable of being split off during the coupling reaction.
Claim 2
Dependent Claim
29 words
The color mixing preventing process as claimed in claim 1 wherein the proportion of the ballasted yellow coupler is 0.0005-0.5 mole per mole of said blue-sensitive silver halide emulsion.
Claim 3
Dependent Claim
27 words
The color mixing preventing process as claimed in claim 1 wherein said blue-sensitive silver halide emulsion containing the ballasted yellow coupler is a gelatino silver iodobromide emulsion.
Claim 4
Dependent Claim
36 words
The multilayer-type reversal color photographic material of claim 2, wherein the amount of said ballasted yellow coupler is present in an amount of from 0.0005 to 0.5 mols per mol of said blue-sensitive silver halide emulsion.
Claim 5
Dependent Claim
23 words
The multilayer-type reversal color photographic material of claim 2, wherein said ballasted yellow coupler is a member selected from the group consisting of
Claim 6
Dependent Claim
21 words
The process for the prevention of color mixing of claim 1, wherein said color forming developing agent is a p-phenylenediamine derivative.
Claim 7
Dependent Claim
31 words
The process for the prevention of color mixing of claim 7, wherein said derivative is a member selected from the group consisting of 4-amino-N,N-diethylaniline, 4-amino-3-methyl-N-methyl-N-( Beta -methyl-sulfonamidoethyl)-aniline, and 4-amino-3-methyl-N-ethyl-N-( Beta -hydroxy-ethyl)-aniline.
Claim 8
Dependent Claim
20 words
The process for the prevention of color mixing of claim 1, wherein said diffusible cyan coupler is a phenolic coupler.
Claim 9
Dependent Claim
28 words
The process for the prevention of color mixing of claim 9, wherein said coupler is a member selected from the group consistIng of 2-chloro-1-naphthol, 2,4-dichloro-1-naphthol, 1-hydroxy-N-butyl-2-naphthamide and 1-hydroxy-N-(2-acetamidophenethyl)-2-naphthamide.
Claim 10
Dependent Claim
32 words
The process for the prevention of color mixing of claim 1, wherein said diffusable magenta coupler is a member selected from the group consisting of open-chain methylene couplers and cyclic methylene couplers.
Claim 11
Dependent Claim
48 words
The process for the prevention of color mixing of claim 11, wherein said open-chain methylene coupler is a member selected from the group consisting of acylacetonitriles, 2-cyanoethylbenzofuran, and benzylacetonitrile and said cyclic methylene coupler being a member selected from the group consisting of 1-phenyl-3-methyl-5-pyrazolone, 1-phenyl-3-(4-chlorobenzamido)-5-pyrazolone, 1-phenyl-3-(3-nitrobenzoyl-amino)-5-pyrazolone, and 1-(2,4,6-trichlorophenyl)-3-(4-nitroanilino)-5-pyrazolone.
Claim 12
Dependent Claim
22 words
The process for the prevention of color mixing of claim 1, wherein said yellow coupler is an acylacetamide type open-chain methylene coupler.
Claim 13
Dependent Claim
30 words
The process for the prevention of color mixing of claim 13, wherein said coupler is a member selected from the group consisting of 2-acetanilide, 2-aceto-2'',4''-dichloroacetanilide, 2-benzoylacetanilide, 2-benzoyl-2''-methoxyacetanilide, and 2-benzoyl(4''-p-toluene-sulfonamido) acetanilide.
Claim 14
Dependent Claim
201 words
A process for the prevention of color mixing for a multilayer-type reversal photographic light-sensitive material of the type developed in color forming developers, each containing a coupler, which comprises developing said multilayer-type reversal photographic light-sensitive material having on a support, a. a red-sensitive emulsion layer, b. a green-sensitive emulsion layer, and c. a blue-sensitive emulsion layer, said developing being carried out with color developers containing a diffusable cyan, yellow and magenta couplers, respectively, said blue emulsion layer containing a ballasted yellow coupler of the formula wherein R1 represents a member selected from the group consisting of a tertiary alkyl group, an unsubstituted cycloalkyl group, a substituted cycloalkyl group, an unsubstituted dicycloalkyl group, a substituted dicycloalkyl group, an unsubstituted aryl group and a substituted aryl group; R2 represents a member selected from the group consisting of an unsubstituted aryl group, a substituted aryl group, an unsubstituted heterocyclic group, and a substituted heterocyclic group; and X represents a member selected from the group consisting of a hydrogen atom and a group capable of being split off during the coupling reaction, said ballasted yellow coupler being present in an amount of from 0.0005 to 0.5 mols per mol of said blue-sensitive silver halide emulsion.
Claim 15
Dependent Claim
166 words
A multilayer-type reversal color photographic material of the type to be developed in color developers containing couplers, which comprises a support having thereon, a. a red-sensitive emulsion layer, b. a green-sensitive emulsion layer, and c. a blue-sensitive emulsion layer, said blue-sensitive emulsion layer containing a ballasted yellow coupler of the formula wherein R1 represents a member selected from the group consisting of a tertiary alkyl group, an unsubstituted cycloalkyl group, a substituted cycloalkyl group, an unsubstituted dicycloalkyl group, a substituted dicycloalkyl group, an unsubstituted aryl group and a substituted aryl group; R2 represents a member selected from the group consisting of an unsubstituted aryl group, a substituted aryl group, an unsubstituted heterocyclic group, and a substituted heterocyclic group; and X represents a member selected from the group consisting of a hydrogen atom and a group capable of being split ofF during the coupling reaction, said ballasted yellow coupler being present in an amount of from 0.0005 to 0.5 mols per mol of blue-sensitive silver halide emulsion.
Claim 16
Dependent Claim
26 words
The multilayer-type reversal color photographic material of claim 2, wherein said blue-sensitive silver halide emulsion containing a ballasted yellow coupler is a gelatino silver iodobromide emulsion.
References Cited (Backward Citations)
US3180734A
Cited
US3265506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |