| Document |
Document Title |
|
WO/1995/017703A1 |
An improved laser printer or photocopier toner for authentication is made by mixing conventional toner particles with submicron ultraviolet sensitive particles that exhibit detectable characteristcs in response to ultraviolet radiation. ...
|
|
WO/1995/016224A1 |
A security document containing a photograph obtained by the silver complex or dye diffusion transfer process in an image receiving layer containing light interference pigments uniformly distributed in said image receiving layer, and/or i...
|
|
WO/1995/015514A1 |
The present invention concerns a radiographic system comprising at least one X-ray intensifying screen and a radiographic film which is sensitive to actinic radiation. The X-ray intensifying screen emits mainly ultraviolet radiation and ...
|
|
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...
|
|
WO/1995/004294A2 |
This invention relates to holograms and light panels, more particularly it relates to edge-lit and steep reference angle holograms and displays; holograms which are light panels used to illuminate other holograms, displays, and electroni...
|
|
WO/1995/000881A1 |
A non-hydroquinone photographic developer composition consisting essentially of: (a) a developer selected from the group consisting of ascorbic acid and sugar-type derivatives thereof, or alkali metal salts and mixtures thereof, in an am...
|
|
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...
|
|
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 ...
|
|
WO/1994/018603A2 |
A metal halide sensitised medium recording a phase modulated image wherein voids in the medium modulate the image and the medium is substantially free of the metal of the metal halide and metal halide itself and a method of recording a p...
|
|
WO/1994/016362A1 |
The present invention is directed to a method for the recovery of erythorbates from photographic solutions. In the disclosed method, the photographic solution is first acidified by passing it over an acidic cation exchange resin and the ...
|
|
WO/1994/011783A1 |
Solid anti-fogging agents such as 5-nitroindazole which are otherwise poorly soluble in water are converted ro readily water soluble compositions that are solids at room temperature when they are first dissolved in water soluble polymers...
|
|
WO/1994/009992A1 |
Certain squaric acid derivatives and sulfonate esters are useful for the thermochemical generation of acid. The thermal acid generators may be used in imaging media in conjunction with acid-sensitive materials which undergo a color chang...
|
|
WO/1994/009990A1 |
An anti-copying film or layer is composed of a film or layer of transparent material with a plurality of mutually spaced, at least partially non-transparent areas whose planes are arranged in approximately the same position with respect ...
|
|
WO/1994/004367A1 |
An anti-copy film or coating for originals or documents consists of transparent film material with a plurality of spaced, at least partly opaque and possibly reflective regions arranged as coverings on the foil surfaces substantially sta...
|
|
WO/1994/004718A1 |
The invention is a method for making a metal-containing article, comprising the steps of: providing a layer of a porous ground in a selected area (1404); exposing selected regions of the layer of porous ground to light, thereby metallizi...
|
|
WO/1994/004366A1 |
The invention concerns a film and/or layer which contains transparent and inclined opaque sectional zones and is produced by superposing and joining individual transparent and opaque or reflecting sheets and subsequently separating them....
|
|
WO/1994/003834A1 |
Derivatives of ketogluconic acid have been found to be useful as developing agents for photographic media.
|
|
WO/1993/019011A1 |
The invention concerns a method of treating effluents in order to eliminate the organic compounds. The method comprises a primary oxidation stage with hydrogen peroxide in an alkaline medium, a secondary oxidation stage in a neutral medi...
|
|
WO/1993/016375A1 |
Hybrid agents for enhancing in vivo diagnostic imaging of body organs and tissues, and methods of preparing and using the same.
|
|
WO/1993/016412A1 |
An X-ray sensitive composition including one or several photopolymerizable monomer or photocrosslinkable polymer systems and thermochromic substances which can be used in a dry X-ray reproduction process. The process is based on the diff...
|
|
WO/1993/016214A1 |
Photographic processing devices such as stainless steel racks and tanks are cleaned to remove contaminants such as silver by contacting the devices with a cleaning solution comprising water, a mineral acid such as nitric acid, a soluble ...
|
|
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...
|
|
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...
|
|
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 ...
|
|
WO/1993/012463A1 |
A method of controlling the pH of photographic silver halide developer solutions which contain a dihydroxybenzene developing agent and a secondary developing agent which together form a super-additive combination and an amount of sulphit...
|
|
WO/1993/011462A1 |
A method for carrying out additional processing of cinematographic film, wherein film sections of arbitrary length are processed by passing them through preselected chemical baths (9, 10, 11), and an equipment for realization of this met...
|
|
WO/1993/011458A1 |
A photographic element is described with improved speed in the blue and ultra-violet region of the electromagnetic spectrum. The spectral response of the photographic element is enhanced with at least one dye represented by formula (I), ...
|
|
WO/1993/011467A1 |
The present invention provides a photographic material comprising on a support a silver halide emulsion sensitized to light of wavelengths between 600 nm and 850 nm characterized in that said silver halide emulsion comprises a red sensit...
|
|
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...
|
|
WO/1993/011457A1 |
A wide latitude, high resolution radiographic system having a relative speed of at least 150 and a contrast transfer function of at least 0.30 when measured at 6 line pairs per millimeter, comprises at least one X-ray intensifying screen...
|
|
WO/1993/011456A1 |
An improved system for rapid access processing of photographic silver halide elements comprises a hydrazine-containing silver halide element in combination with a developer solution comprising at least one ascorbic acid developing agent ...
|
|
WO/1993/010482A2 |
Disclosed are novel radiation-sensitive negative-working surface-sensitive emulsions and materials exhibiting reduced pressure sensitivity. One aspect of the present invention is directed to silver halide crystals with low propensity tow...
|
|
WO/1993/009063A1 |
Ammonium pentachloromonoaquorhodate(III), (NH4)2RhCl5(H2O), is a useful photograpic chemical. Small amounts of rhodium-containing, water soluble species remain in solution in the process liquor after synthesis. Most of the soluble rhodiu...
|
|
WO/1993/009468A1 |
A high resolution radiography system is presented utilizing an intensifying screen incorporating a UV emitting phosphor. The photographic element exhibits enhanced sensitivity to the emission of the phosphor and further comprises at leas...
|
|
WO/1993/008513A1 |
This invention relates to a photocopy prevention film applied to a document to be protected that comprises a microlens array (11) in combination with a semi-transparent mask (10) located in the back focal plane of the array. The document...
|
|
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...
|
|
WO/1993/005443A1 |
A radiographic element comprises a polyester support having double sided silver halide emulsion layers. An ultraviolet light absorbing methine compound is admixed in the support or in a layer interposed between the emulsion layers in an ...
|
|
WO/1993/005444A1 |
A radiographic element comprises a polyester support having double sided silver halide emulsion layers. An ultraviolet light absorbing methine compound is copolymerized with the support and is present in an amount sufficient to reduce th...
|
|
WO/1993/004401A1 |
A deletion fluid for lithographic printing plates comprising a silver image formed by the silver salt diffusion transfer process comprising an aqueous solution containing iodine and an iodide salt characterised in that it contains from 1...
|
|
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 ...
|
|
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 ...
|
|
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...
|
|
WO/1993/002391A1 |
It is known to treat the effluent resulting from photographic processing apparatus. Such treatment takes the form of either neutralization where the effluent is mixed with a neutralizing solution prior to disposal, or evaporation where t...
|
|
WO/1993/001521A1 |
An X-ray imaging system comprising a pair of UV emitting screens in combination with a double-side coated, silver halide film element wherein said silver halide is chloride or tabular, is described. This system has superior image quality...
|
|
WO/1993/001522A1 |
An X-ray film/screen combination which will produce an image with very high sharpness is described. This combination comprises a screen comprising a UV emitting phosphor with the major emission peak between 300-390 nm dispersed in a bind...
|
|
WO/1993/001520A1 |
Substituted diaminedithio-containing compounds useful for improving the speed of a silver halide emulsion are described. These compounds can be added in small amounts to the emulsion preferably after the emulsion has been chemically sens...
|
|
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...
|
|
WO/1993/000609A1 |
A silver recovery element (10) for treating a photographic developer solution containing silver ions comprises a substrate (20) having thereon a hydrophilic colloid layer containing physical development nuclei. The invention also compris...
|
|
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...
|
|
WO/1992/022852A1 |
A photographic processing apparatus for processing a photosensitive material (14) with a processing solution (16) including first and second processing ingredients (18, 20) includes a processing tank (10) for holding the processing solut...
|
