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5674986 |
Photographically useful compounds including at least one 1,3-sulfur-oxygen ring system
There are described heat-developable photosensitive image-recording materials which include a compound having at least one cyclic 1,3-sulfur-oxygen moiety. The compound is stable in the...
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5223387 |
Color photographic light-sensitive material containing a naphthyl azo dicyano halo phenyl compound
A color light-sensitive material comprising a support provided thereon at least one light-sensitive silver salt layer combined with an image forming compound represented by formula (I) ##STR1##...
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4605613 |
Ballasted dye compounds with linkages containing three aromatic nuclei for use in a dye diffusion transfer process and element
Photographic silver halide emulsion material for use in a dye diffusion transfer process incorporating a non-diffusing compound capable of releasing a diffusible mono-azo dye or dye precursor...
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4605697 |
Substituted sulfonamido compounds, photosensitive elements, film units, and processes for retaining a photographic image with same
A nondiffusible sulfonamido compound which is alkali-cleavable upon oxidation to release a diffusible photographically useful material, said nondiffusible sulfonamido compound having the formula:...
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4565424 |
Asymmetric dichroic dye molecules having poly(arylazo) linking groups, a bis-substituted aryl thiazyl end group, and another end group
A dichroic dyestuff having the formula Q--A--Z wherein: A is a poly(arylazo) linking group wherein the aryl comprises 6 to 10 carbon atoms and has 4,4'-azo linkages; Q is a bis-substituted...
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4564577 |
Naphthoquinone redox dye-releasers
Photographic elements and diffusion transfer assemblages are described which employ a nondiffusible, positive-working, redox dye-releaser having the formula: ##STR1## wherein: (a) R 1 represents a...
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4533626 |
Photographic light-sensitive material with 4-(paranitrophenylazo)naphthol dyes
A silver halide photographic light-sensitive material is described, containing a compound represented by formula (I) ##STR1## said compound represented by formula (I) being a novel cyan...
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4529692 |
Color photographic materials with chelatable azo dyes
A color photographic material is disclosed. The material is comprised of a support base having thereon a photosensitive silver halide emulsion layer and a compound associated with the emulsion...
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4528258 |
Process for forming image
A process for forming an image which comprises heating a light-sensitive material comprising a support having thereon at least a light-sensitive silver halide, a binder and a dye-releasing redox...
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4524122 |
Substituted 4-nitrophenylazo-1-naphthol cyan dyes having improved light stability
Photographic elements and diffusion transfer assemblages employing a nondiffusible compound capable of releasing at least one diffusible cyan dye moiety, and having the formula: ##STR1## wherein:...
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4520095 |
Photographic light-sensitive element
A photographic light-sensitive element having at least one light-sensitive silver halide layer and a dye image forming non-diffusible material which, upon a redox reaction under alkaline conditions...
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4495100 |
Non-diffusible cyan compound capable of releasing a 6-heterocyclylazo-3-pyridinol
Nondiffusible compounds capable of releasing at least one diffusible cyan dye moiety having the formula: ##STR1## wherein: (a) Y represents the atoms necessary to complete a 5- or 6-membered...
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4495098 |
Coordination complexes of polyvalent metal ions and cyan dye-releasing compounds comprising a 6-heterocyclazo-3-pyridinol
Coordination complexes of a polyvalent metal ion and a nondiffusible compound capable of releasing at least one diffusible cyan dye moiety having the formula: ##STR1## wherein: (a) Y represents the...
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4495099 |
Non-diffusible magenta compound capable of releasing a 4-(2-heterocyclazo)phenol having a heterocyclic ring fused thereto
Nondiffusible compounds capable of releasing at least one diffusible magenta dye moiety having the formula: ##STR1## wherein: (a) X represents the atoms necessary to complete a 5- or 6-membered...
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4476207 |
Photographic products and processes employing novel nondiffusible cyan dye-releasing compounds and precursors thereof
Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible compound capable of releasing at least one diffusible...
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4436799 |
Photographic products and processes employing novel nondiffusible magenta dye-releasing compounds and precursors thereof
Photographic elements, diffusion transfer assemblages, coordination complexes and processes are described which employ a novel nondiffusible compound capable of releasing at least one diffusible...
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4426326 |
Nondiffusible metal-complexed azo dye-releasing compounds
Nondiffusible compounds having a releasable azo dye moiety have the formula: ##STR1## wherein: (a) each Z and Z 1 completes an aromatic carbocyclic or heterocyclic nucleus having at least one ring...
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4396546 |
Photographic products and processes employing novel nondiffusible 6-(2-thienylazo)-3-pyridinol cyan dye-releasing compounds and precursors thereof
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 6-(2-thienylazo)-3-pyridinol cyan dye moiety or...
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4368260 |
Photographic light sensitive element
A photographic light-sensitive element which comprises on a support a light-sensitive silver halide emulsion layer and having associated therewith a non-diffusible compound capable of, under...
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4368248 |
Photographic products and processes employing novel nondiffusible 2-(2-pyridylazo)-4,5-bis(tertiary amino)phenol black dye-releasing compounds and precursors thereof
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable, 2-(2-pyridylazo)-4,5-bis(tertiary amino)phenol...
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4368249 |
Photographic products and processes employing novel nondiffusible pyridylazo(dialkylamino)phenol magenta dye-releasing compounds and precursors thereof
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable, pyridylazo(dialkylamino)phenol magenta dye moiety...
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4358404 |
Nondiffusible 6-arylazo-3-pyridinol
Nondiffusible compounds are described having a releasable 6-arylazo-3-pyridinol magenta dye moiety or precursor thereof having the formula ##STR1## wherein: (a) R represents hydroxy or amino; ...
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4346155 |
Photographic products and processes employing novel nondiffusible 6-arylazo-3-pyridinol magenta dye-releasing compounds and percursors thereof
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 6-arylazo-3-pyridinol magenta dye moiety or...
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4288511 |
Photographic elements containing encapsulated polymers coordinated with metal ions
A photographic element comprises a support having thereon a layer containing a hydrophilic vehicle having dispersed therein a particulate polymeric material encapsulated with a chelating or already...
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4285859 |
Azo compounds useful in a photographic dye diffusion transfer process
Novel azo compounds and their preparation are provided. These compounds have the general formula ##STR1## wherein X is N or CR 4 where R 4 is a hydrogen atom or an optionally substituted alkyl or...
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4277398 |
Magenta-masked color azopyrazolinone couplers
Orange colored magenta color couplers of the general formula ##STR1## are provided, in which R is optionally substituted alkyl, aralkyl, aryl or a heterocyclic group, X is optionally substituted...
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4273708 |
Carbonyl-substituted cyan azo dye-providing materials
Cyan azo dye-providing compounds have the formula: ##STR1## wherein: R 1 is selected from the group consisting of aryl, alkyl or NR 11 R 12 wherein R 11 is alkyl or aryl and R 12 is alkyl, or...
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4273706 |
Nondiffusible heterocyclylazonaphthol dye-releasing compounds
Nondiffusible compounds are described having at least one releasable 2-(2-heterocyclylazo)-1-naphthol dye moiety having the formula: ##STR1## wherein: G is hydroxy, a salt thereof, or a...
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4272434 |
Nondiffusible compounds having a releasable azo dye moiety
Photographic elements, diffusion transfer assemblages and processes are described which employ a nondiffusible compound having a releasable azo dye moiety having the formula: ##STR1## wherein: Z...
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4248772 |
Positively or negatively charged azo compounds containing a ballasting group
Novel azo compounds of the general formula (E) n s (A) n s --(R 1 ) n s --NN--BAL are provided, wherein A is a charged group which may be positively or negatively charged, E is a counter...
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4246414 |
2-Alkoxyalkoxy-5-nitrobenzenesulfonic acid and salt thereof
A 2-alkoxyalkoxy-5-nitrobenzenesulfonic acid or a salt thereof represented by the following general formula (I): ##STR1## wherein R 1 represents an alkylene group having 2 or more carbon atoms; R...
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4233237 |
2-Alkoxyalkoxy-5-aminobenzenesulfonic acid
A 2-alkoxyalkoxy-5-aminobenzenesulfonic acid represented by the following general formula (I): ##STR1## wherein R 1 represents an alkylene group having 2 or more carbon atoms; and R 2 represents...
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4228070 |
Purification of photographic image-forming sulfonamido compounds employing immiscible solvents
A process for purifying a photographic image-forming sulfonamido compound comprises the steps of: a. preparing a first solution by dissolving an unpurified image-forming sulfonamido compound in...
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4228073 |
Nondiffusible azo dye-releasing compounds
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety. The compound has the formula:...
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4225708 |
2-Sulfamoyl-5-sulfamido-1-naphthols
2-Sulfamoyl-5-sulfamido-1-naphthols represented by the formula: ##STR1## wherein R 1 , R 2 , R 3 and R 4 can be the same or different and each represent a hydrogen atom, a straight-chain alkyl...
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4204993 |
Nondiffusible 6-arylazo-2-amino-3-pyridinol dye-releasing compounds
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 6-arylazo-2-amino-3-pyridinol dye moiety or...
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4183755 |
Photographic products and processes employing metal complexable nondiffusible azo dye-releasing compounds
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety. The compound has the formula:...
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4183753 |
Photographic products and processes employing metal complexed azo dyes
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety such as an arylazo-pyrazolotriazole...
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4165987 |
Photographic products and processes employing novel nondiffusible pyridylazopyrazole or pyrimidylazopyrazole dye-releasing compounds
Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable pyridylazopyrazole or pyrimidylazopyrazole dye...
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4108850 |
Positive-working immobile photographic azo compounds
Photographic elements, processes for forming images in photographic elements and new compounds are disclosed. Generally, the invention relates to immobile compounds which can be used to provide...
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4098783 |
Dye substituted cyclic 1,3-sulfur-nitrogen compounds as dye image-forming materials in photography
This invention relates to color providing compounds useful as dye image-forming materials in color photographic processes. These compounds comprise a complete dye, i.e., a dye radical comprising...
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4035188 |
N-alkoxyethoxyethylphenylenediamine color developing agents
Novel compounds represented by the following general formula are useful as color developing agents for color development which react with couplers to form color images: ##STR1## (wherein R 1 and R...
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4013635 |
Cyan azo dye-providing compounds
Cyan azo dye-providing compounds having the formula ##STR1## wherein Car represents a carrier moiety which, as a function of oxidation under alkaline conditions, releases a diffusible dye from said...
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4013633 |
Yellow azopyrazoline dye releasing redox compounds for photographic color transfer
A photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer and one of said layers having associated therewith a yellow image dye-releasing...
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4004929 |
Color corrected photographic elements
Photographic elements containing at least one silver halide emulsion layer in which there is incorporated a cyan-color forming material which, upon reaction with oxidized color developer, forms a...
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4001204 |
Magenta image-providing phenylazonaphthyl dues containing a morpholinyl of piperidine radical
A magenta image dye-providing compound having a formula as follows: ##STR1## wherein: Car represents a carrier moiety which, as a function of oxidation under alkaline conditions, releases a...
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3998803 |
5-Arylazo-6-hydroxy-pyridone-2 dyes containing an amino or substituted amino group
Dyes of the formula ##STR1## wherein R 1 is hydrogen or cyano, R 2 is alkyl, aryl or heterocyclyl, or a substituted derivative there f, R 20 is hydrocarbyl, heterocyclyl or amino, or a...
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3993638 |
Ballasted p-sulfonamidophenols capable of releasing a non-heterocyclic azo dye
Nondiffusible p-sulfonamidophenols which are alkalicleavable upon oxidation to release a diffusible color-providing moiety from the benzene nucleus having the formula: ##SPC1## Wherein Col is a dye...
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3932381 |
Magenta image-providing phenylazo-naphthyl dyes
Magenta image dye-providing compound having formulas as follows: ##SPC1## Wherein: Car represents a carrier moiety which, as a function of oxidation under alkaline conditions, releases a...
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3932380 |
Magenta image-providing phenylazo-naphthyl dyes
A magenta image dye-providing compound having a formula as follows: ##SPC1## Wherein: Car represents a carrier moiety which, as a function of oxidation under alkaline conditions, releases a...
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