Abstract: The invention is directed to an optical recording member including a thin film photosensitive layer provided on a base. The thin film photosensitive layer may vary between a low optical density state and a high optical density state when optical energy is applied thereto. This thin film photosensitive layer contains a first element which may be a metal or semimetal, a second element which is at least one selected from Te, Ge, Sn, Al, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Mo, Rh, Pd, Ag, Cd, In, Ta, W, Pt, Au, Tl, Pb, Si, Sb, Bi, and an oxygen element. Part of the oxygen element is bonded with the first element to form its oxide. The ratio x of the total number of atoms of the oxygen element to that of the first element, when the maximum valence of the first element in a stable oxide state is n, is according to the relation of 0<x<n/2. At least part of the second element exists in a non-oxide state. This thin film photosensitive layer is formed by a vacuum deposition or sputtering method.

Abstract: Compositions and films are provided for the preparation of electrostatic printing masters. The composition binder permits use of aqueous silver halide photographic techniques to image the master for printing, and exhibits insulation properties needed for electrostatic printing under typical conditions of relative humidity.

Abstract: A photosensitive material comprising a support having a layer of microcapsules on the surface thereof, said microcapsules containing a color precursor and a photohardenable or photosoftenable composition, and said support being a highly reflective, non-difuse polymeric film or coated paperstock.

Abstract: A photographic support having a secondary diffuse-reflective surface is disclosed, wherein a thin metal layer is provided on the matted surface of a substrate and the center plane average roughness, as determined by a three dimensional roughness measuring apparatus, of the thin metal layer is 0.1 to 1.2 .mu.m.

Abstract: The present invention relates to a photographic support comprising, on a substrate, a filling layer comprising a fine solid powder having the stationary diffuse-reflective surface and a color photosensitive material comprising at least one silver halide emulsion layer formed on the secondary diffuse-reflective surface of a filling layer comprising a solid powder formed on a substrate. A photographic support of the present invention provides an image having remarkably improved brightness, saturation, tone reproducibility in shade areas and sharpness. A printing color photosensitive material of the present invention provides an image having remarkably improved brightness, saturation, tone reproducibility in shades and sharpness and also capable of rigid development.

Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least one colored layer, and the layer can be decolored or lightened upon photographic processing of the photographic light-sensitive material,wherein the colored layer is formed by a process comprising the step of:color developing at least one colorless or light-colored leuco-dyestuff utilizing at least one metal salt of an organic acid.

Abstract: Compositions and films are provided for the preparation of electrostatic printing masters. The composition binder permits use of aqueous silver halide photographic techniques to image the master for printing, and exhibits insulation properties needed for electrostatic printing under typical conditions of relative humidity.

Abstract: A data card comprising a self-supporting, wallet size plastic card base upon which is disposed a film substrate layer, a highly reflective layer and an optical storage layer which is a selected photosensitive layer which has been exposed at an actinic wavelength and developed to be substantially opaque over a portion of its extent, except for an imagewise exposure pattern of clear and partially clear data marks revealing to varying extends reflectivity in the underlying reflective layer. Data spots may have one of four different reflectivities thereby representing a quadrinary digit 0, 1, 2 or 3 replacing two binary digits. The reflective layer is matched to the selected optical storage layer so that the reflective layer is highly reflective at a read beam wavelength in the red or near infrared and less reflective at actinic wavelengths either in the blue/green range or in the ultraviolet.

Abstract: The present invention relates to a photographic support having a secondary diffuse-reflective surface, and a color photosensitive material comprising at least one silver halide emulsion layer formed on the secondary diffuse-reflective surface of a photographic support. A photographic support of the present invention provides an image having remarkably improved brightness, saturation, tone reproducibility in shadow areas and sharpness. A color photosensitive material of the present invention provides an image having remakably improved brightness, saturation, tone reproducibility in shades and sharpness and also capable of rapid development.

Abstract: A recording system for megavolt irradiation therapy, in which the recording is carried out by the therapeutic irradiation during the entire period of irradiation, comprising a silver halide film that has a gradation of at least 4 when exposed with visible light and of metal foils having atomic numbers of 22 to 50. It has improved image quality compared with known systems.

Abstract: An electron beam recording film comprising a support bearing, in order,(A) a sputtered layer of indium-ion oxide, and(B) a gelatino silver halide emulsion layer, e.g., silver iodobromide, crosslinked with 2 to 10% by weight based on the weight of gelatin in the emulsion layer of a Cr.sup.+3 -containing compound, e.g., chrome alum, chromic choloride, etc.Optionally other layers can be present in the film, e.g., crosslinked gelatin overcoat, subbing layer on support, titanium oxide layer on the indium-tin oxide layer.

Abstract: Reflection of incident optical radiation (18) from a highly reflective metal layer (12), such as aluminum or titanium, into a photoresist layer (14) is reduced by interposing a layer of titanium nitride (16) between the metal and photoresist layers. The thickness of the TiN layer depends on the wavelength of the optical radiation used to expose the photoresist and on the optical properties of the underlying metal layer. Reflectance of less than about 2% may be achieved using the TiN layer in conjunction with aluminum and less than about 5% in conjunction with titanium, in accordance with the invention. If left in place after patterning an underlying aluminum layer, the TiN layer also serves to suppress hillock formation in the aluminum layer.

Abstract: An optical information recording medium is disclosed, which comprises a plastic substrate; an undercoat layer formed thereon, comprising a condensate of a mixture of (1) at least one metal alcoholate selected from the group consisting of a tetra-alkoxy metal and an organic tri-alkoxy metal, and (2) a polymeric compound selected from the group consisting of (i) a copolymer of an acrylate or methacrylate containing at least one hydroxy alkyl group, and an acrylate or methacrylate containing an alkyl group, and (ii) an amino-group-containing polymer; and a recording layer formed on the undercoat layer.

Abstract: Improved printing with polymers is achieved by interposing a liquid layer conforming to rough substrate surfaces and possibly exhibiting different characteristics from an outer surface polymer layer. This is particularly advantageous in printed wiring board (PWB) manufacture requiring solder mask coating. Thus, a two layer composite polymer coating is provided. One inner adhesive photopolymer layer is applied to the PWB in the liquid state, displacing air from PWB surface. The outer layer of the composite therefore can be epoxy, dry film or liquid polymer. Dry film thus carried on a thin plastic sheet may be overlaminated onto a liquid inner layer already on the substrate, without the need for a vacuum laminator to eliminate bubbles or a plasticizing heat step to conform the dry film to the surface.

Abstract: A novel heat-developable color photosensitive material containing at least a light-sensitive silver halide, a binder, a dye providing substance capable of forming or releasing a diffusible dye by an oxidation-reduction reaction under heat and a transition metal ion, on a support.The present photosensitive materials provide a color image of high density with low fog in a short period of time, and have a good preservation-stability.

Abstract: A packaging film for photosensitive materials for photographic purposes which is a laminated film containing at least a metallized film layer and two polyethylene polymer layers which are located on both sides of the metallized film layer, at least one of the above polyethylene polymer layers contains more than 50 wt % of linear low density polyethylene manufactured by a low pressure method, and side or both of the above polyethylene polymer layers contains 0.3 to 30 wt % of a light-shielding material, and the strength of one or both sides of the above polyethylene polymer layers is stronger than the adhesive force between the above metallized film and the difference in the thickness of the polyethylene polymer layers is smaller than 50%.This film is superior in physical strength, moisture proofing, gas barrier, light-shielding and antistatic character, and it is superior as a packaging film for a photosensitive material for photographic purpose.

Abstract: An information recording medium includes a substrate having first and second sides. A layer of photoresist is deposited on the first side of the substrate. This layer of photoresist has a selected thickness and defines an area of openings therein such that the first side of the substrate is exposed at the openings, the openings being distributed in a pattern indicative of selected stored information. A reflecting layer is deposited on the photoresist layer and on the first side of the substrate at the openings. Both the substrate and the layer of photoresist are adapted to transmit the reading beam such that a portion of the reading beam incident on the second side of the substrate is reflected out of the substrate by the reflecting layer, both in a first region comprising the openings and in a second region between the openings.

Abstract: A light receiving member provided with a coating layer having a light receiving layer on a substrate, where the thickness of the coating layer is regularly changed within the minute width of the coating layer.

Abstract: The present invention discloses multi-layered resist structures and methods of producing them which can be used in electronic device lithography to produce micrometer and submicrometer geometries.The resist structure comprises two or more layers at least one of which is a metallic material and at least one of which is a radiation-sensitive material. The metallic layer exhibits both a high atomic number and a high density. The metallic material is positioned relative to the radiation-sensitive polymeric material so that it can be used to control reflection and backscatter of radiation used to create a latent image within the radiation-sensitive polymeric material. The thickness of the metallic layer is determined by the amount of reflection desired and the amount of backscatter permitted into the layer of radiation-sensitive polymeric material.

Abstract: An improved method of selectively depositing coatings onto bodies of semiconductor material employs as a protective mask an alkyl ester of a sulfosuccinate salt. The mask material is applied to areas which are to be kept free of the coatings. The overspray of a desired coating, onto the protective mask is deposited in a cracked, non-continuous manner, as opposed to the smooth crystalline layer being deposited over the semiconductor body. This overspray coating can be readily removed.

Abstract: Permanent gray-scale reproductions including half-tone images. A refractory background region bears refractory thin-film dichroic filter means patterned to conform to the reproduced half-tone image. Preferred background region materials include metals, semiconductors, and ceramics; the thin-film materials are preferably oxides or nitrides of metals and semiconductors. If the refractory materials are appropriately selected, the reproductions are highly resistant to chemical and thermal deterioration and should have useful lives in the hundreds of thousands of years.

Abstract: A track recording support for recording devices is suggested with a support (10) made of paper or plastic on which a metallic coating (12) is mounted by means of evaporation and being able to be burned off by means of recording electrodes, in particular an aluminum coating. A lubricant in a finely dispersed form is added to contrast coating (11) for reducing of scratching and grinding traces on the surface of metal coating (12) which reaches metal coating (12) and the freely exposed surface thereof by means of diffusion. Preferably, the lubricant is fed to the contrast substance in a powdery form before the processing of the same. On the one hand, it acts in a physical point of view by a reduction of the slide friction on the surface and, on the other hand, in a chemical point of view in that it substantially prevents the build up of combustion residues from the contrast layer on the recording electrodes.

Abstract: A color photographic light-sensitive material comprising a reflective support having thereon a plurality of silver halide emulsion layers of which the silver halide layer located farthest from the support contains not less than 15 mole percent of silver chloride and two non-light-sensitive layers each containing an ultraviolet absorbing agent.

Abstract: Disclosed is an optical information recording member which permits recording of optical information at a high speed and high density by means of energy of light or heat, as well as a high speed reproduction of the recorded information. The optical information recording member has a thin film formed on a substrate which thin film is made of TeOx constituted by a mixture of Te and TeO.sub.2 with a small amount of Au being added such that the contents of Te, O and Au in the thin film falls within a predetermined region limited in terms of atomic percent. The optical information recording member of the invention having the thin film of Te-O-Au system permits the information to be recorded in quite a short time thus allowing quite high speed of recording and reproduction as compared with the conventional recording film of TeOx system. The optical information recording member of the invention also brings about a higher recording sensitivity and a higher C/N ratio.

Abstract: Photosensitive element for forming a lithographic negative which comprises a support bearing a dry photosensitive layer consisting essentially of an intimate mixture of colloidal metal particles, e.g., silver, etc., colloid binder, free radical producing compound, and mercaptan compound, e.g., 2-mercaptobenzoxazole. A two layer photosensitive element embodiment comprises on a support a lower dry colloidal layer having dispersed colloidal metal particles and an upper dry layer consisting essentially of free-radical producing compound and a mercaptan compound. The elements are exposed imagewise, bleached, rinsed, and optionally fixed.

Abstract: Electroerosion recording materials are provided with a surface lubricant film of particulate lubricating nonconductive graphite fluoride and optional conductive materials in a polymeric binder. The lubricating agents reduce stylus scratching of the conductive layer during electroerosion printing, improve contrast, provide a beneficial coating on the writing electrode or stylus and improve the handling and writing characteristics of the recording material. The lubricating agents/polymer films are especially useful (1) where the substrate of the recording material is light transmissive and, after the electroerosion process, the resulting product is suitable for direct-negative applications and (2) where direct offset masters are produced by removal of noneroded lubricant film.

Abstract: An image-forming composite image member and subtractive photo process employing that composite, in which composite, a spectrally reflective light-blocking layer, a secondary thin optically functional layer and a subtractive photosensitive layer are carried on a base in an association, in which the reflective layer and the secondary layer cooperate after imagewise exposure and development to define an image member in which the secondary layer and reflector layer may provide a guide to orientation of the composite and may provide a unique polarity-reversing ability to display both a negative and a positive image. In a preferred form, the reflective and secondary layers provide superior uniform light-blocking with a minimum combined thickness, and also cooperate in the photo process during the development to insure rapid and complete clearing of areas with at most minimal mechanical action under portions of the photosensitive layer which are soluble after imagewise exposure and have been removed in development.

Abstract: An optical information recording material which comprises a substrate having thereon a heat mode recording layer made of a metal and a metal compound that increases the sensitivity of said recording layer and decreases the reflectivity of said recording layer, a reflecting layer made of a metal, and a heat insulating layer interposed between said recording layer and said reflecting layer. The material makes it possible to record information at high sensitivity and read recorded information by reflected light at high contrast.

Abstract: An optical information recording medium comprising a substrate and a recording layer superimposed on said substrate, said recording layer comprising a reflective layer in which metal particles with a particle diameter of 1500.ANG. or less have been distributed closely and a light absorptive layer in which metal compounds and a very small amount of metal particles with a particle diameter of 200-2000.ANG. have been dispersed unformly or substantially uniformly in the volume ratio of 1-30% in a resin.

Abstract: An optical information recording medium comprising a substrate and a recording layer superimposed on said substrate, said recording layer being comprised of a reflective layer which contains metal particles having a particle diameter of 1500 .ANG. or less and in which said metal particles have been distributed closely and a light absorptive layer containing a coloring matter.

Abstract: An article having a primed surface or improved electric charge transfer properties is disclosed. The surface has discrete sites of inorganic materials thereon.

Abstract: An electrophotographic photosensitive material is disclosed. The material is comprised of a conductive support base. On the surface of the base is a photoconductive layer. On a surface of the photoconductive layer is an interlayer comprised of organic metal compound as its main component. On top of the interlayer is a low-resistant protective layer. The material can achieve electrostatic contrast greatly superior to that of conventional photosensitive materials.

Abstract: A method for light-shielding a roll photographic film wherein a backing paper comprising a support, a print layer and at least one aluminum layer on the support is employed.

Abstract: Substantially amorphous polyesters containing ionic moieties are useful to uniformly disperse particulate pigments in dispersions, image-forming compositions and elements, e.g. lithographic compositions and elements. Such polyesters reduce pigment agglomerations and improve dispersion stability in such dispersions and compositions and coatings prepared therefrom.

Abstract: An electrically-conductive support for an electrophotographic medium, comprising a support and an electrically-conductive layer provided on the support is disclosed. The electrically-conductive layer comprises a binder and electrically-conductive metal oxide fine particles having an average grain size of 0.5.mu. or less, dispersed in the binder.

Abstract: Photographic materials and photographic processes employing light sensitive silver halide particles, silver halide particles which are substantially non-light sensitive having been modified with a silver halide solubility reducing agent and internally fogged silver halide particles which are substantially non-light sensitive provide negative silver images of high contrast and high maximum density.

Abstract: A photographic sensitive material is described comprising at least one photographic sensitive layer provided on a plastic film base through a subbing layer, wherein the improvement comprises said subbing layer containing fine particles of at least one electrically conductive crystalline metal oxide selected from ZnO, TiO.sub.2, SnO.sub.2, Al.sub.2 O.sub.3, In.sub.2 O.sub.3, SiO.sub.2, MgO, BaO, and MoO.sub.3, or a compound oxide thereof having a volume resistivity of 10.sup.7 .OMEGA. cm or less.

Abstract: A heat-mode recording material is disclosed. The material comprises a base which is overlaid with a recording layer made of a metal, semimetal or semiconductor containing at least hydrogen.

Abstract: A photographic dye diffusion transfer process is provided which operates by imagwise release of a dye.The dye diffuses to a receiving layer and is mordanted there to give a dye image. The dyes are released from a compound of the formula D--E--F--BAL by reductive cleavage.D is a group which contains the residue of diffusible dye, BAL is a ballasting group which renders the compound containing it substantive to the layer in which it is present, D and E being joined by any type of chemical bond and E and F represent a single or double bond system which links D and BAL and which has a reduction potential above -200 mV measured against a standard hydrogen electrode at a pH of less than 3 and which bond can be reductively cleaved at a pH of less than 3 by a reducing agent which is able to act as a pH below 3.

Abstract: A photosensitive silver halide element comprising a support carrying single effective silver halide grains in a predetermined spaced array is prepared by coalescing fine-grain silver halide in a plurality of spaced depressions in a surface by melting said fine-grain silver halide.

Abstract: Adhesive compositions are disclosed which are particularly useful as mask adhesives in instant photographic products. These adhesives provide high strength permanent bonds while greatly improving border quality around image areas after imagewise exposure and development. These adhesive compositions comprise a polymeric acidic component having at least 3 milliequivalents of acid per gram of polymer, and a substantially immobile, blocked photographic development restrainer or a substantially immobile, blocked competing photographic developer.

Abstract: Adhesive compositions are disclosed which are particularly useful as mask adhesives in instant photographic products. These adhesives provide high strength permanent bonds while greatly improving border quality around image areas after imagewise exposure and development. In addition, they can be heat sealed at relatively low sealing temperatures. These adhesive compositions comprise a polymeric acidic component having at least 3 milliequivalents of acid per gram of component, and a substantially immobile, blocked photographic development restrainer or a substantially immobile, blocked photographic developer. The polymeric acidic component comprises certain sulfo-containing polymers.

Abstract: A new method to produce photographic images is provided which comprises:(a) imagewise exposing a photographic assembly which contains at least during the silver halide developing step, in order optionally a supercoat layer, at least one silver halide emulsion layer, a layer containing a substantive azamethine compound and a photobase, there being optionally one or more interlayers between each of said components(b) treating the exposed photographic assembly with an aqueous processing bath so as to provide in the silver halide emulsion layer or layers a solution or dispersion of a bleach developer compound, thereby to develop the latent silver image in the silver halide emulsion(s), and(c) in the non-latent image areas allowing the bleach developer compound to diffuse in a counter-imagewise manner from the silver halide emulsion layer (s) to the layer containing substantive azamethine compound and there to bleach the compound to form a dye image.

Abstract: In an imaging film having a substrate over which is deposited a thin, opaque layer of an imaging material there is located on at least the outer side of said opaque imaging layer and, better still, on the opposite sides of said opaque layer of imaging material, thin, preferably vapor deposited, passivating layers forming a barrier against passage of oxygen and moisture. The passivating layer, or layers, in a flexible continuous amorphous film having a thickness generally no greater than about 500 Angstroms (A.degree.) and preferably less than 200 A.degree. and comprising an alloy or mixture of a Group IV oxide, most advantageously germanium oxide, and a stabilizing agent or agents, more particularly one or more different oxides of a metal or a semiconductor or a metal fluoride which stabilizes the amorphous character and chemical inertness of the Group IV oxide even when subjected to the elements of the surrounding atmosphere.

Abstract: A thermal recording material possessing high sensitivity which comprises a support having thereon in sequence a subbing layer, a recording layer and optionally, a protecting layer in which the subbing layer contains a composition comprising (A) 100 parts by weight of chlorinated polyolefin having a chlorine content of about 30% by weight or more and (B) 1 part to 100 parts by weight of aminoalkylalkoxysilane compound represented by the following general formula (I): ##STR1## wherein R.sup.1 represents an amino group or a H.sub.2 N--R.sup.5 --NH-- group; R.sup.2 and R.sup.5 each represents a polymethylene group having 1 to 2 carbon atoms or a straight or branched chain alkylene (alkanediyl) group having 3 to 5 carbon atoms, and may be the same or different; R.sup.3 represents a straight or branched chain alkyl group having 1 to 5 carbon atoms; m represents 2 or 3; R.sup.4 represents a straight or branched chain alkyl group having 1 to 5 carbon atoms or an R.sup.1 --R.sup.

Abstract: A thermal recording element comprising a support, a recording layer formed thereon and a chlorinated polyolefin layer formed on said recording layer.

Abstract: Magnetic recording elements containing substantially transparent magnetic recording layers which exhibit excellent magnetic recording and reproducing characteristics. Such elements contain a support and a transparent magnetic recording layer. The recording layer has a thickness up to about 5 microns and contains acicular, magnetizable particles having an average width of less than about 0.06 micron and an average length up to about 1 micron. These particles are substantially homogeneously dispersed in a medium that comprises a binder and has a refractive index which is substantially the same throughout the thickness of the magnetic recording layer. The concentration of the binder is at least about 10 parts per 100 parts, by weight, of the particles and is up to about 30 parts, by weight, for particles having an average length of at least about 0.06 micron and up to about 40 parts, per 100 parts, by weight, for particles having an average length of less than about 0.06 micron.

Abstract: A recording material comprising a support having thereon a layer containing (i) at least one metal and (ii) a layer containing one or more metal sulfides other than GeS, metal fluorides or metal oxides. A mono-layer mixture of (i) and (ii) may also be used.

Abstract: A photopolymerizable element suitable for use in the production of photorelief printing plates comprises a film or sheet, an adhesive layer and a photopolymerizable layer wherein the adhesive layer comprises a non-photopolymerizable plastics binder and a photopolymerization initiator comprising an admixture of a compound of the formula: ##STR1## preferably 4,4'-bis(dimethylamino)-benzophenone in an amount 0.01 to 2.0% by weight based upon the weight of the binder and another photopolymerization initiator in an amount 0.1 to 7% by weight based upon the weight of the binder.

Abstract: This invention relates to the production of information carriers on which the information is recorded along a track; the process of making the information carrier comprises a first step of materializing the track itself before recording any information by forming a groove in an auxiliary layer, the track thus being capable of being optically detected, and a second step of recording the information in a photosensitive layer in contact with the auxiliary layer along the track previously formed.