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Matches 1,251 - 1,300 out of 53,592

Document Document Title
WO/1992/016876A1
The invention is generally accomplished by providing a halide emulsion comprising radiation sensitive silver halide doped with a combination of iridium and transition metal complex with a nitrosyl ligand. The method of doping comprises o...  
WO/1992/016531A1
A novel compound suitable for use as a piezochromic material, namely a crystal comprising an indolinospirobenzothiopyran derivative represented by general formula (I) and a ring-opening isomer thereof, and a process for the production th...  
WO/1992/016505A1
A novel compound suitable for use as thermochromic and photochromic materials, namely an indolinospirobenzopyran derivative represented by general formula (I), and a process for the production thereof, wherein R1 represents C1 to C20 alk...  
WO/1992/015554A1
Non-ionic surface active compounds are provided having formula (I) wherein L is (1), (2), (3) or (4); L' is a chemical bond, -O-, -S-, -NH-, -CONH- or -SO2NH-; R is a hydrophobic substituted or unsubstituted alkyl, substituted or unsubst...  
WO/1992/015921A1
Photographic materials, such as films and papers, include a support and coatings on the support. The coatings often contain hardeners which cause gelation cross-links in the binder in the coating. The extent to which the cross-links have...  
WO/1992/014771A1
A polyester resin is prepared by condensing dimethyl terephthalate and 1,4-cyclohexanedimethanol where the polyester has an inherent viscosity of less than 0.80 dl/gm in a 60:40 phenol/tetrachloroethane solvent blend and the 1,4-cyclohex...  
WO/1992/015042A1
A photosensitive photographic silver halide material comprising a support bearing a layer of a silver halide emulsion comprising at least 50 % silver chloride which contains in or adjacent the emulsion layer a hydrazide nucleating agent ...  
WO/1992/014188A1
A station for the control of an atomized current of coating composition comprises an inlet (27) for pressurized air, at least one atomizing nozzle (31) for the coating composition, wall means (32, 33, 35) for decreasing the velocity of t...  
WO/1992/013021A1
A copolyester is synthesized by reacting a dialkyl ester of an aromatic dicarboxylic acid (e.g., dimethyl terephthalate) with ethylene glycol, low molecular weight poly(ethylene glycol) and a salt of a sulfonic acid-substituted aromatic ...  
WO/1992/012460A1
Photographic emulsions are quickly chilled to a homogeneous, particulate gel by injection of carbon dioxide coolant, while the emulsion is agitated. This process is carried out in a housing having a pair of parallel auger screws to trans...  
WO/1992/012461A1
The invention is generally accomplished by forming a silver halide emulsion and during precipitation adding iridium and selenium in an amount effective to decrease reciprocity failure with substantially no decrease in speed. In a preferr...  
WO/1992/012462A1
A method for reducing speed change, or both speed change and fog growth, on aging in a photographic material composed of a silver chloride or silver bromochloride emulsion, by treating the emulsion with a thiosulfonate compound and a sul...  
WO/1992/012459A1
A method for controlling pressure-induced fog in a silver bromide photographic material involves surface treatment of the emulsion AgBr grains with thiocyanate and an iodide salt. In particular, a process for making a pressure fog-resist...  
WO/1992/011571A1
Described herein is a method for coating a support (14, 14'), such as a web of paper or film, with a liquid composition, such as photographic emulsion. The support is moved through a coating zone and a moving sheet (32, 134) of the compo...  
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...  
WO/1992/011570A1
The invention is generally accomplished by providing a photographic element and a process of its formation wherein a gelatin silver halide emulsion is provided with a thickener comprising a copolymer of the structure (I), wherein A compr...  
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...  
WO/1992/011095A1
It is known in curtain coating to use a bottom or accelerating layer to promote wetting of a moving support on to which a liquid material comprising one or more layers is being deposited. Although high coating speeds can be obtained, it ...  
WO/1992/011579A1
The present invention relates to planographic printing plate precursors, comprising a hydrophilic layer coated on a thermoplastic resin support characterised in that said thermoplastic resin support has a thickness between 200 and 400 mi...  
WO/1992/011573A1
A color photographic silver halide negative working duplicating element comprising a support having thereon at least one red-sensitive photographic silver halide emulsion layer comprising at least one cyan image-dye forming coupler; at l...  
WO/1992/011572A1
Described herein is method for coating a support (14, 14'), such as a web of paper or film, with a liquid composition, such as photographic emulsion. The support is moved through a coating zone and a moving sheet (32, 134) of the composi...  
WO/1992/011094A1
In curtain coating, uniform layer or layers are only obtained if the operational variables are held within precise limits. These limits define a "coating window". However, one of the boundaries of this "window" is governed by the occurre...  
WO/1992/010787A1
An aqueous coating composition comprises (a) a hydrophilic binder; (b) an ester of cellulose having at least 8 acyl groups per C24 cellulose unit wherein at least a majority of the acyl groups are derived from an aliphatic polycarboxylic...  
WO/1992/010785A1
The invention is generally accomplished by at the end of precipitation of a bromoiodide silver halide emulsion, adding a soluble chloride salt to the precipitation prior to emulsion washing. The chloride salt may be added in an amount be...  
WO/1992/010281A1
A liquids mixing and dispensing apparatus and method utilize a plurality of liquid supply modules (A-E) to feed simultaneously charges of a plurality of admixable liquids at predetermined volume flow rates to a mixer (21) to form a batch...  
WO/1992/010786A1
The device for supplying under pressure a photographic coating station is comprised of a first reservoir intended to receive a given volume of photographic emulsion, said reservoir being connected to an air reservoir whose pressure is ma...  
WO/1992/010521A1
Cellulose esters of polycarboxylic acids, and their salts, such as the hydrogen cellulose ester of succinic acid, and the potassium salts thereof, are known to be useful in the preparation of conductive layers in composite such as photog...  
WO/1992/009593A1
Described are novel reversible photochromic naphthopyran compounds substituted on the naphthyl portion at the carbon atom juxtaposed to the oxygen of the pyran ring with, for example, an acetoxy group. Also described are organic host mat...  
WO/1992/009008A1
A soluble, chain extended gelatin having a high molecular weight and significantly higher viscosity at equivalent gelatin concentration compared to standard gelatin and significantly faster setting time is produced by preparing a gelatin...  
WO/1992/009007A1
A method and apparatus for continuously liquefying a gelled photographic material for coating on a substrate is disclosed. The material is advanced throughout the liquefaction apparatus and on to the substrate coating system as a substan...  
WO/1992/007036A1
Selenomerocyanines having structural formula (I) wherein X is O, S, Se, Te, C(CH3)2 or NR wherein R is methyl, ethyl, propyl, cyclopropyl, cyclohexyl, phenyl or phenyl substituted by from one to three of methyl, trifluoromethyl, methoxyc...  
WO/1992/007298A1
The invention relates to the exposure of a recording film to an image transmitting device and to a thermochromic polyacetylenic recording film comprising, as an imageable medium, a supported, imageable crystalline polyacetylene monomer l...  
WO/1992/007295A1
The invention provides an improved method of forming monodispersed tabular silver halide grains. These and other objects of the invention are generally performed by providing a method of forming silver halide grains comprising forming an...  
WO/1992/006951A1
This application relates to monomers and homopolymers of diacetylenic ethers having formula (I) wherein X is alkyl, alkenyl, aryl, alkaryl, aralkyl, aralkenyl, monoalkylamino or dialkylamino and Y is alkyl, alkenyl or (II) where X' is in...  
WO/1992/007297A1
The present invention relates to a composition of fine crystalline acetylenic compounds containing a plurality of conjugated acetylene linkages (i.e. a polyacetylene) having thermosensitivity at a temperature greater than 80 °C and a po...  
WO/1992/007032A1
This invention relates to the preparation of a supported modulating film having a permanent orange yellow imaged layer of the homopolymer of crystalline 5,7-dodecadiyn-1,12-bis(isopropyl carbamate) monomer having structure (I) or a yello...  
WO/1992/007296A1
In the preparation of a light sensitive photographic paper wherein the paper support contains a polyolefin coating the polyolefin is subjected to two corona discharge treatments, the first to prevent optical brightener from exuding from ...  
WO/1992/005467A1
Non-contact air film conveyors are suited for conveying elongated strips (46) of web material such as photographic film and include a track plate (12) having gas flow apertures (20, 24; 72, 74) extending through its thickness at angles t...  
WO/1992/005213A1
A cellulose ester film which can be melt cast is manufactured by esterifying cellulose to form a cellulose acetate or cellulose acetate propionate having degrees of substitution of DSac = 1.9 to 2.6, DSpr = 0 to 0.9 and DSOH = 0 to 0.55 ...  
WO1992002851A3  
WO/1992/003772A1
A method and an apparatus for controlling reactant ion concentration within a precipitation vessel to optimize the reactions occurring therein is disclosed. In one important implementation, the reactant controlled comprises halide ion in...  
WO/1992/002851A2
Apparatus for curtain coating a web or article includes a coating hopper, a support roller, guide rollers for leading the web to and from the support roller and an enclosure. Air which has been conditioned in respect of temperature, humi...  
WO/1992/002854A1
A novel method and apparatus is disclosed for the coating of a support or moving web using curtain coaters during the start-up and shut-down of a free falling liquid curtain. The apparatus is typically a catch pan positioned between a fi...  
WO/1992/002853A1
The addition of 3-substituted-5-alkylthio-1,2,4-triazoles to silver halide photothermographic emulsions improves the post-processing stability of the emulsion.  
WO/1992/002855A1
The present invention concerns a phototackifiable composition useful as a coating on a substrate consisting of an optically clear blend of two or more polymers and a photosensitive compound that forms a strong acid on exposure to actinic...  
WO/1992/002852A1
The addition of certain 5-mercapto-1,2,4-triazoles to silver halide photothermographic emulsions improves the post-processing image stability of those emulsions.  
WO/1992/001971A1
An emulsion or dispersion in which the continuous phase is aqueous and comprises gelatin wherein its viscosity has been reduced by addition thereto of a water-soluble protein or a surfactant which is an ester of a polyalkoxylate.  
WO/1992/001970A1
Light-sensitive silver halide color photographic element having at least one layer comprising a silver halide photographic emulsion, at least one 2,5-diacylamino phenol cyan coupler and at least one sulfo substituted thiacarbocyanine spe...  
WO/1992/000291A1
A multi-step process for the preparation of tetraazaindenes provides, intermediate compounds and methods for their formation. For example, Meldrum's acid is reacted with triethylorthoacetate in the presence of pyridine and ethyl acetate ...  
WO/1992/000418A1
Using co-extrusion a sheet product web can be created which has first and second strands bonded together weakly. Post-extrusion parting of the strands, at the weak bond, can produce sheet form products in a variety of fields (notably ima...  

Matches 1,251 - 1,300 out of 53,592