Abstract: An ink jet ink composition comprising from about 30 to about 90% by weight of water, from about 0.5 to about 30% by weight of a pigment, from about 0.1 to about 10% by weight of natural or synthetic smectite clay mineral.

Abstract: A nanocomposite optical plastic article has a plastic host material with a temperature sensitive optical vector (x) and a core shell nanoparticulate material dispersed into the plastic host material. The core shell nanoparticulate material is characterized by a core defined by a nanoparticulate material which has a temperature sensitive optical vector (x1) and a shell defined by a coating material layer coated onto the core. It is important to the invention that temperature sensitive vector (x1) is directionally opposed to the temperature sensitive optical vector (x) and nshell<nplastic host<ncore.

Abstract: A nanocomposite optical plastic article has a plastic host material with a temperature sensitive optical vector (x) and a core shell nanoparticulate material dispersed into the plastic host material. The core shell nanoparticulate material is characterized by a core defined by a nanoparticulate material which has a temperature sensitive optical vector (x1) and a shell defined by a coating material layer coated onto the core. It is important to the invention that temperature sensitive vector (x1) is directionally opposed to the temperature sensitive optical vector (x) and nshell<nplastic host<ncore.

Abstract: A concentrated fine solid particle dispersion useful for forming a substantially photographically transparent magnetic recording layer is disclosed, comprising an organic solvent medium containing a dispersing agent and dispersed magnetic particles, wherein the magnetic particles are present at a concentration of at least 25% by weight and the organic solvent medium is comprised primarily of organic solvent selected from dimethyl succinate, dimethyl glutarate and dimethyl adipate. This invention provides a stable concentrated dispersion of magnetic particles useful for preparing substantially photographically transparent magnetic recording layers. A film-forming binder solution can be added to dilute the concentrated dispersion, which then can be applied to a support to form a transparent magnetic layer for a magnetic recording element.

Abstract: A gain medium for producing a light emission in a laser. The gain medium comprises a dye-doped polymer nanoparticle matrix having an absolute value of dn/dT less than an absolute value of dn/dT of its dye-doped polymer matrix.

Abstract: The invention relates to a waveguide comprising a transparent polymeric central core clad externally with one or more polymeric layers, at least one of the core or clad layer containing layered particles disposed in a polymeric binder, wherein a majority of the particles have a lateral dimension less than 1 micrometer.

Abstract: A gain medium for producing a light emission in a laser. The gain medium comprises a dye-doped polymer nanoparticle matrix. In a preferred embodiment, the gain medium comprises a Rhodamine-doped PMMA-silica matrix.

Abstract: A gain medium for producing a light emission in a laser. The gain medium comprises a dye-doped polymer nanoparticle matrix having an absolute value of dn/dT less than an absolute value of dn/dT of its dye-doped polymer matrix.

Abstract: A concentrated fine solid particle dispersion useful for forming a substantially photographically transparent magnetic recording layer is disclosed, comprising an organic solvent medium containing a dispersing agent and dispersed magnetic particles, wherein the magnetic particles are present at a concentration of at least 25% by weight and the organic solvent medium is comprised primarily of organic solvent selected from dimethyl succinate, dimethyl glutarate and dimethyl adipate. This invention provides a stable concentrated dispersion of magnetic particles useful for preparing substantially photographically transparent magnetic recording layers. A film-forming binder solution can be added to dilute the concentrated dispersion, which then can be applied to a support to form a transparent magnetic layer for a magnetic recording element.

Abstract: An ink jet ink composition comprising from about 30 to about 90% by weight of water, from about 0.5 to about 30% by weight of a pigment, from about 0.1 to about 10% by weight of natural or synthetic smectite clay mineral.

Abstract: The invention relates to a waveguide comprising a transparent polymeric central core clad externally with one or more polymeric layers, at least one of the core or clad layer containing layered particles disposed in a polymeric binder, wherein a majority of the particles have a lateral dimension less than 1 micrometer.

Abstract: A method for monitoring the amount of unexposed photographic film remaining in a motion camera film magazine that includes the steps of: providing an unexposed motion picture film containing a support having at least one light sensitive image recording layer and a transparent magnetic recording layer; recording film length data on the transparent magnetic recording layer of the unexposed motion picture film; loading the unexposed motion picture film in a motion picture film magazine; and reading the film length data from the transparent magnetic recording layer as it is removed from the film supply magazine to provide an indication of the amount of unexposed film remaining in the motion picture film magazine. The amount of unexposed film remaining may be displayed in a read-out device associated with the film magazine or camera.

Abstract: A process for viewing a motion picture film scene image with concurrently displayed subtitle text comprising: providing a motion picture print film comprising a support bearing at least one light sensitive image recording layer and a transparent magnetic recording layer; printing a negative film scene image onto the motion picture print film to form a positive scene image; recording subtitle information in the magnetic recording layer in synchronization with the scene image; projecting the print film scene image for viewing while simultaneously reading the subtitle information recorded in the magnetic recording layer; and converting the subtitle information to text comprising alphanumeric characters and displaying the subtitle text in conjunction with the projected screen image. One or more language subtitles may be recorded onto and read from a transparent magnetic recording layer on a motion picture film in synchronization with the film image.

Abstract: A particulate magnetic recording media wherein the magnetic particles are substantially spherical. The spherical particle shape makes possible a media which is magnetically isotropic, well dispersed and low in noise, and free of magnetically inferior broken particles.

Abstract: A process for viewing a positive motion picture film scene image with an accompanying original audio soundtrack comprising: providing a motion picture origination negative film comprising a support bearing at least one light sensitive image recording layer and a transparent magnetic recording layer; optically recording a motion picture scene in the motion picture negative film by exposing the film in a motion picture camera, and simultaneously recording contemporaneous original audio information in the magnetic recording layer on a frame-by-frame basis in synchronization with the scene image; providing a motion picture print film comprising a support bearing at least one light sensitive image recording layer and a transparent magnetic recording layer; printing the negative film scene image onto the motion picture print film to form a positive scene image, and transferring the original audio information from the magnetic recording layer of the negative film to the magnetic recording layer of the print film in

Abstract: A coating composition is provided for master media for anhysteretic transfer of magnetically recorded information to a copy medium which comprises from about 59 to about 69% of a magnetic pigment, from about 2.95 to about 6.90% of an abrasive powder, from 0 to about 5.4% of a colloidal inorganic powder, from about 2.9 to about 4.5% of a wetting agent, from about 0.7 to about 3.1% of a lubricant, from about 14.1 to about 33.6% of a binder, at least 85% of which is a polyurethane and from 0.05 to about 15% of which is a polyisocyanate crosslinking agent. The composition is preferably disposed on a substrate backcoated with a composition containing from about 15 to about 25% of carbon black, from about 15 to about 25% of an inorganic filler, from about 0.5 to about 2% of an abrasive, from about 20 to about 30% of a vinyl copolymeric binder, from about 15 to about 25% of a polyurethane binder, from about 7.5 to about 17.5% of an NCO terminated crosslinking agent, from about 0.

Abstract: The present invention is a photographic element which includes a support having a first side and a second side, at least one light sensitive emulsion layer superposed on the first side of the support, a transparent magnetic layer superposed on the second side of the support. The transparent magnetic layer includes magnetic particles and a film forming binder. An outermost abrasive lubricant layer overlies the transparent magnetic layer. The outermost abrasive lubricant layer is formed from a non-aqueous coating composition of a composite wax particle, an abrasive particle and an organic solvent. The composite wax particle is composed of a wax phase having a wax having a melting point of greater than 30.degree. C. the wax being greater than 80% by weight of the wax phase and a non-crosslinked polymer phase free of chemically bonded acid groups.

Abstract: This invention relates to a silver halide photographic element comprisinga support having a frontside and a backside;a light-sensitive silver halide emulsion layer superposed on the frontside of the support; anda transparent magnetic recording layer superposed on the backside of the support, said magnetic recording layer comprising magnetized particles, a dispersing agent and an aromatic polyester binder having a Tg of greater than 150.degree. C.

Abstract: An ink jet printing ink composition is disclosed for use with an ink jet printing apparatus comprising a printhead, an ink delivery system adapted to provide the ink to the printhead, and a sensor associated with the ink delivery system adapted to produce a signal which is characteristic of the concentration of a label material in a printing ink, where said signal is used to indicate the appropriateness of using a particular printing ink. The ink composition comprises a carrier, a colorant, and a predetermined concentration of a distinct label material, the weight ratio of the label material to the colorant being less than 1. The label material may be easily detected by a sensor associated with the ink delivery system.

Abstract: A dye-donor element for thermal dye transfer comprising a support having on one side thereof a dye layer and on the other side thereof in the direct opposite area to at least a portion of the dye layer, a magnetic recording layer and a slipping layer, in that order.