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US4870000A Expired / Lapsed US ⏱️ 0.0 years remaining

Color photograhic recording material containing a coupler which releases a photographically active compound

Assignee: Agfa Gevaert AG
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Filing: 1988-03-21
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Granted: 1989-09-26
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Expires: 2008-03-21
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Abstract

Abstract A color photographic recording material containing a coupler which releases a photographically active compound. Couplers corresponding to formula (I) couple with color developers to form yellow to yellow-orange dyes and, in doing so, release the residue X as a photographically active compounds. Where X is a development inhibitor, remarkably high inter-image and edge effects can be obtained. ##STR1## in which R 1 represents alkyl, a heterocyclic or carbocyclic aromatic group or -NH-CO-R 2 ; R 2 represents alkyl, aryl or -NH-R 3 ; R 3 represents alkyl or aryl; Q represents the groups to complete a fused, optionally substituted benzene or heterocyclic ring; X represents the residue of a photographically active compound; TIME represents a bond which, on reaction of the coupler with the oxidation product of a color developer, is released together with the residue X attached thereto and, in turn, releases the residue X as a photographically active compound under the development conditions; n=0 or 1.

Inventors

  • 👤 Peter Bergthaller
  • 👤 Rudolf Stolzenburg
  • 👤 Dirk Hubner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 16:55
CPC Classifications
C; C07; C07D; C07D403/00; C07D403/02; C07D403/06; G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30535; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 141 words
A color photographic recording material comprising at least one photosensitive silver halide emulsion layer and, associated therewith, a coupler which is capable of releasing a photographically active compound, characterized in that the coupler corresponds to the following general formula ##STR18## in which R 1 represents alkyl, a heterocyclic or carbocyclic aromatic group or --NH--CO--R 2 ; R 2 represents alkyl, aryl or --NH--R 3 ; R 3 represents alkyl or aryl; Q represents the residue required to complete a fused, optionally substituted benzene or heterocyclic ring; X represents the residue of a photographically active compound; TIME represents a bond which, on reaction of the coupler with the oxidation product of a color developer, is released together with the residue X attached thereto and, in turn, releases the residue X as a photographically active compound under the development conditions; n=0 or 1.
Claim 2
Dependent Claim 141 words
A color photographic recording material comprising at least one photosensitive silver halide emulsion layer and, associated therewith, a coupler which is capable of releasing a photographically active compound, characterized in that the coupler corresponds to the following general formula ##STR18## in which R 1 represents alkyl, a heterocyclic or carbocyclic aromatic group or --NH--CO--R 2 ; R 2 represents alkyl, aryl or --NH--R 3 ; R 3 represents alkyl or aryl; Q represents the residue required to complete a fused, optionally substituted benzene or heterocyclic ring; X represents the residue of a photographically active compound; TIME represents a bond which, on reaction of the coupler with the oxidation product of a color developer, is released together with the residue X attached thereto and, in turn, releases the residue X as a photographically active compound under the development conditions; n=0 or 1.
Claim 3
Dependent Claim 17 words
A recording material as claimed in claim 1, characterized in that the coupler is a DIR coupler.
Claim 4
Dependent Claim 41 words
A recording material as claimed in claims 1 or 2, characterized in that R 1 is a phenyl radical substituted by a group which imparts resistance to diffusion in the form of an alkoxy, alkoxycarbonyl, carbamoyl, sulfamoyl, sulfonamido or carbonamido group.
Claim 5
Dependent Claim 139 words
A recording material as claimed as claim 1 or 2, characterized in that X represents a group corresponding to the following formula: ##STR19## in which Z represents the groups required to complete a 1,2,3- or 1,2,4-triazole ring; R 5 and R 6 represent H, alkyl, aryl, a heterocyclic group, alkoxy, --S--R 7 , amino, acylamino, a carboxylic acid ester group or --CO--NR 8 NR 9 , or when the ring completed by Z ia a 1,2,3-triazole ring R 5 and R 6 together represent the groups required to complete a fused ring; R 7 represents an alkyl, cycloalkyl, aralkyl, alkenyl, alkynyl or aryl; R 8 represents alkyl, aralkyl or aryl; R 9 represnets H or has the same meaning as R 8 or R 8 and R 9 together represent the groups required to complete a cyclic amino group.
Claim 6
Dependent Claim 44 words
A recording material as claimed in claim 2, characterized in that the DIR coupler is present in a predominantly blue-sensitive silver halide emulsion layer and in that the recording material contains at least one other predominantly green-sensitive or predominantly red-sensitive silver halide emulsion layer.
Claim 7
Dependent Claim 24 words
A recording material as claimed in claim 2, characterized in that the DIR coupler is present in a predominantly red-sensitive silver halide emulsion layer.
Claim 8
Dependent Claim 220 words
A color photographic recording material comprising at least one predominantly blue-sensitive silver halide emulsion layer unit with which at least one yellow coupler is associated, a predominantly green-sensitive silver halide emulsion layer unit with which at least one magenta coupler is associated and a predominantly red-sensitive silver halide emulsion layer unit with which at least one cyan coupler is associated, wherein at least one of said predominantly green-sensitive and predominantly red-sensitive silver halide emulsion layer units comprises two or more partial silver halide emulsion layers and at least one said partial layer of the predominantly green-sensitive silver halide emulsion layer unit or of the predominantly red-sensitive silver halide emulsion layer unit contains a DIR coupler corresponding to the following formula: ##STR20## in which R 1 represent alkyl, a heterocyclic or carbocyclic aromatic group or --NH--CO--R 2 ; R 2 represents alkyl, aryl or --NH--R 3 ; R 3 represents alkyl or aryl; Q represents the groups required to complete a condensed, optionally substituted benzene or heterocyclic ring; X represents the residue of a development inhibitor; TIME is a bond which, on reaction of the coupler with the oxidation product of a color developer, is released together with the residue X attached thereto and, in turn, releases the residue X as a development inhibitor under the development conditions; n=0 or 1.
Claim 9
Dependent Claim 220 words
A color photographic recording material comprising at least one predominantly blue-sensitive silver halide emulsion layer unit with which at least one yellow coupler is associated, a predominantly green-sensitive silver halide emulsion layer unit with which at least one magenta coupler is associated and a predominantly red-sensitive silver halide emulsion layer unit with which at least one cyan coupler is associated, wherein at least one of said predominantly green-sensitive and predominantly red-sensitive silver halide emulsion layer units comprises two or more partial silver halide emulsion layers and at least one said partial layer of the predominantly green-sensitive silver halide emulsion layer unit or of the predominantly red-sensitive silver halide emulsion layer unit contains a DIR coupler corresponding to the following formula: ##STR20## in which R 1 represent alkyl, a heterocyclic or carbocyclic aromatic group or --NH--CO--R 2 ; R 2 represents alkyl, aryl or --NH--R 3 ; R 3 represents alkyl or aryl; Q represents the groups required to complete a condensed, optionally substituted benzene or heterocyclic ring; X represents the residue of a development inhibitor; TIME is a bond which, on reaction of the coupler with the oxidation product of a color developer, is released together with the residue X attached thereto and, in turn, releases the residue X as a development inhibitor under the development conditions; n=0 or 1.

References Cited (Backward Citations)

US3841880A Cited
US4259437A Cited
US4410618A Cited
US4518685A Cited
US4591548A Cited
US4690885A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-09-25 1993-03-27 1993-09-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-09-25 1997-03-27 1997-09-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-09-25 2001-03-27 2001-09-26 $7700.00 Window Closed / Lapsed

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