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WO/1995/022082A1 |
The invention relates to a colour-photographic recording material which comprises a magenta coupler and, as stabilizer, at least one compound of formula (Ia), (Ib) or (II), where the radicals are as defined in claim 1, and to the novel s...
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WO/1995/018186A1 |
The design and synthesis of novel aminimide-derived molecular modules and the use of the modules in the construction of new molecules and fabricated materials is disclosed. The new molecules and fabricated materials are molecular recogni...
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WO/1995/017701A1 |
The present invention concerns a process for obtaining a silver halide photographic emulsion which can be used in colour negative photographic processes. This emulsion comprises grains containing a silver chlorobromide core and a periphe...
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WO/1995/017702A1 |
The present invention concerns a silver halide photographic emulsion for use in colour reversal photographic products. This emulsion comprises grains containing a silver bromide or bromoiodide core and a peripheral area with a high silve...
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WO/1995/006095A2 |
Phenolic derivatives have formulas (I) or (II), in which R1 stands for C6-C20-alkyl or -alkenyl that may be interrupted by one or several non-adjacent oxygen atoms, or for a group having the formulas: -O-CO-R5, -CO-O-R5-, -NH-CO-R5, -NR6...
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WO/1994/029421A1 |
Disclosed is the use of glycine-N,N-diacetic acid derivatives and their alkali metal, alkaline earth metal, ammonium and substituted ammonium salts as complexing agents for alkaline earth and heavy metal ions, except with alpha-alanine-N...
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WO/1994/028464A1 |
Polyamino disuccinic acids are effective chelants for use in photography and gas conditioning (both applications preferably involving the polyamino disuccinic acid in the form of a metal, preferably an iron complex). The copper chelates ...
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WO/1994/022054A1 |
A color photographic element having a support bearing at least one radiation sensitive emulsion layer comprising dispersing medium and silver halide grains is disclosed. The emulsion layer is a tabular grain silver halide emulsion layer ...
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WO/1994/016363A1 |
Yellowing of a processed photographic element is inhibited by incorporating a scavenger compound capable of reacting with magenta coupler, e.g. an epoxy compound, in a layer adjacent a layer containing the magenta coupler. In a preferred...
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WO/1994/011784A1 |
A stabilized photographic dispersion is prepared by adding a hydrophobic, photographically inert compound which has a logP(calc) greater than about 9 and does not solidify or gel the dispersed phase to a photographic dispersion comprisin...
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WO/1994/001803A1 |
The invention describes a method and apparatus for taking pictures with altered colored schemes. In particular, a chosen bandwidth (51) from a scene (20) is reproduced on a photograph (5) while all other colors from the scene are produce...
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WO/1993/023793A1 |
A stabilizing bath that provides image stability and uniform drainage of excess fluid to prevent drying spots and that reduces or eliminates the formation of residue on the base side of color negative films is comprised of hexamethylenet...
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WO/1993/019397A1 |
The present invention relates to a color photographic processing method, and a product for color photography comprising, in addition to the conventional layers of light-sensitive silver halides, a non light-sensitive top layer. The metho...
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WO/1993/016413A1 |
A silver halide color photographic photosensitive material containing a magenta coupler represented by general formula [I-3] or [I-4], which is excellent in color reproduction and color development and is remarkably improved in the light...
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WO/1993/015437A1 |
A method for making flowable alkaline thiosulfate, flowable alkaline sulfite, or a combination of the two, by blending an alkaline thiosulfate, an alkaline sulfite, or a combination of the two, with an alkali metal arylsulfonate.formalde...
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WO/1993/012462A1 |
A method of fixing a developed photographic silver halide material comprising at least two silver halide layers sensitised to different regions of the spectrum, comprising placing the material in face-to-face contact with a fixer sheet i...
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WO/1993/012465A1 |
The invention is accomplished by forming balanced cyan, magenta, and yellow coupler and emulsion mixes. There is at least one layer in which silver halide emulsion has been sensitized to blue light or silver halide emulsion sensitive to ...
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WO/1993/012464A1 |
A method of making a photographic colour print using a photographic colour material containing low levels of silver halide characterised in that, (a) after image formation and washing and/or stop bath treatment and (b) before non-uniform...
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WO/1993/011460A1 |
A redox-amplification solution comprising hydrogen peroxide, or a substance capable of releasing hydrogen peroxide, or reducing agent, such as a colour developing agent, and in combination two or more sequestering agents for complexing w...
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WO/1993/011459A1 |
A photographic bleach solution, comprising hydrogen peroxide, or a compound capable of releasing hydrogen peroxide, and in combination two or more sequestering agents for complexing with a transition metal which will inhibit decompositio...
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WO/1993/011466A1 |
Heat-developable silver-based photosensitive imaging element comprising a heat-reducible organic silver salt, a photosensitive silver halide, a developing agent, and a releasing compound that upon reaction with either the reduced or the ...
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WO/1993/007534A1 |
A photographic element comprising a support, at least one photosensitive silver halide layer and associated therewith a colour coupler of general formula (1) or (2), wherein A and B represent the same or different electron-withdrawing gr...
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WO/1993/006527A1 |
The invention relates to a photographic slide, the image on which reproduces not only all the hues but also all the tones of the image brillance to supplement them by an additional covering image with all the image points in register, th...
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WO/1993/005445A1 |
The invention creates a selective oxygen barrier around individual coupler or other photographically active particles by surrounding each particle with a layer of water applicable oxygen barrier polymer such as polyvinyl alcohol (PVA), w...
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WO/1993/004397A1 |
A process for manufacturing a photographic coupler dispersion. The process involves mixing a coupler and a solvent to form a coupler/solvent mixture, and then subjecting the coupler/solvent mixture to microwave energy to heat the mixture...
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WO/1993/004402A1 |
A method of preparing a coupler dispersion in gelatin by separating the auxiliary coupler solvent using a hydrophobic microporous membrane and contacting the opposite surface of the membrane with a coupler solvent.
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WO/1993/003417A1 |
A process for regenerating spent bleach fixer by recovering silver sulfide from a spent solution is described. The process is particularly suited for treating the bleach fixer solution in a manner which enables recycling of the solution ...
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WO/1993/003419A1 |
A novel blocked photographically useful compound element and process are based on a new blocking group that comprises a beta-ketocarbonyl group that is part of a 5- to 7-member heterocyclic ring containing a hetero-atom not adjacent to t...
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WO/1993/003416A1 |
In photographic processing apparatus, the processing solutions need to be replenished as they are used up. It is known to effect replenishment of chemicals in a paper processor by determining the amount of exposure given to the paper in ...
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WO/1993/003418A1 |
A photosensitive photographic silver halide colour material comprising at least two dye image-forming units each separated from its neighbouring units by a layer containing a scavenger for oxidised developing agent, each unit comprising ...
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WO/1993/003420A1 |
A method of making fine particle photographic coupler dispersions which comprises forming a dispersion of photographic coupler, coupler solvent and auxiliary coupler solvent in an aqueous gelatin medium containing at least about 1 % by w...
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WO/1993/003415A1 |
In photographic processing apparatus, by-products are produced due to the chemical reactions which occur during the processing of photographic materials. It is known to remove some of these by-products in accordance with the area of phot...
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WO/1993/003421A1 |
Reducing agents for oxidized developing agents and light sensitive elements containing the reducing agents wherein the reducing agents comprise a polymer having gallic acid or gallic acid derivative moieties.
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WO/1993/002392A1 |
A photographic element and process provide a magenta coupler of formula (I) wherein (a) at least one of X1, X2 and R1 and at least one of R2 and R3 is a substituent individually selected from carbamoyl, alkoxycarbonyl, aryloxycarbonyl, s...
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WO/1993/002393A1 |
A photographic element contains at least one photosensitive silver halide emulsion layer having associated therewith a 5-pyrazolone photographic coupler represented by formula (I), wherein substituents X¿1?, X¿2?, Y, G¿1?, G¿2?, G¿3...
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WO/1993/001523A1 |
The invention provides a novel and economic method for the production of an activated propene from a malonitrile dimer which comprises reacting a compound of formula (I) with a nucleophile D to provide a compound of formula (II) wherein ...
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WO/1993/001524A1 |
A method of forming a photographic colour image comprising processing an imagewise exposed photographic silver halide colour material in a first processing bath containing a colour developing agent (developer), a second processing bath c...
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WO/1993/000610A1 |
A process for treating a photographic developer solution containing silver ion comprises contacting the solution with a silver recovery element (10), which comprises a substrate (12) having thereon a hydrophilic colloid layer (16) contai...
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WO/1993/000611A1 |
An element and a process for recovering silver from a photographic developer solution containing silver ions. The silver recovery element (10) comprises a support (12) having a hydrophilic colloid layer (16) containing physical developme...
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WO/1992/021064A1 |
A novel blocked filter dye comprises a new blocking group that (a) comprises two electrophilic groups, the least electrophilic of which is bonded directly or through a timing group to the filter dye group of the compound, (b) is capable ...
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WO/1992/020013A1 |
Purpose: An automatic developing apparatus for a silver halide photosensitive material, and more particularly an automatic developing apparatus, in which the automatic developing apparatus is made compact in size and the work efficiency ...
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WO/1992/018903A1 |
Pyrazolone magenta dye-forming couplers having a particular arylthio coupling-off group enhance the photographic properties and improve the manufacturing and handling characteristics of materials and processes employing such couplers. Th...
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WO/1992/018902A1 |
Magenta image-dye couplers provide photographic elements and processes having superior photographic properties. The couplers are 3-anilino pyrazolone couplers having an aryl thio coupling-off group. The substituents of the coupler are sp...
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WO/1992/018901A1 |
A color photographic material and process provide a two-equivalent 3-anilino pyrazolone magenta dye-forming coupler, a phenolic coupler solvent and at least one amine compound.
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WO/1992/017455A1 |
Sulfur-contaminated aromatic nitro compounds are hydrogenated in the presence of a chrominum-containing Raney cobalt catalyst to corresponding primary amino compounds which are useful as intermediates for photographic dye-forming coupler...
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WO/1992/015957A2 |
A method of predictably producing accurate photoprocessing reference image tool photographs to be used for adjusting the parameters of photographic devices, in which a first-generation camera-original image of a scene containing preselec...
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WO/1992/014189A1 |
The invention provides novel photographic compositions comprising a propene isomer of formula (I) wherein A, B or E, each individually represent hydrogen, or an electron withdrawing group, selected for example from -CN, -NO2, -SO2R, -SO2...
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WO/1992/012464A1 |
The invention provides a novel magenta coupler of formula (I), wherein R1 and R2 are the same or different and are selected from H, alkyl, substituted alkyl, aryl, substituted aryl, heteroaryl, alkylthio, carboxylic acid or ester, primar...
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WO/1992/011574A1 |
The invention is generally accomplished by providing an inverted order film in which the lowermost light sensitive layer is a blue-sensitive layer of blue-sensitized tabular grains. The blue-sensitized tabular grains are preferably sensi...
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WO/1992/011576A1 |
An object of the invention is to overcome disadvantages of prior practices. A further object of the invention is to provide a process for providing particles that result in improved UV absorption in photographic products. An additional o...
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