Abstract: Electrolessly deposited metal films having improved adhesion can be obtained by coating the surface of the substrates to be metallized with a formulation consisting of UV-curable varnishes which contain noble metal compounds as activators and, in addition, either fillers or solvents or a combination of fillers and solvents, curing these varnishes by means of UV radiation, followed by electroless metallization of the substrates thus treated.

Abstract: A surface of a ceramic article, such as a glazed surface on a whiteware article, is treated with radiant energy such as infrared light from a laser to provide a localized remelting of the material at the surface in a fusing step. After the fusing step, the surface is treated with further radiant energy, desirably over a larger surface encompassing the fused zone and also desirably at a lower power density so as to limit the rate of cooling of the fusion zone and the immediately surrounding regions, thereby preventing thermal stress cracking. The fusion zone and surrounding regions desirably are preheated by additional radiant energy immediately prior to the fusing step so as to further limit thermal stresses during the fusing step. The process can be employed, among many other uses, for repair of glaze defects and for decoration.

Abstract: A process of powder coating of workpieces in which initially a workpiece is coated with color powder such that the powder adheres to the workpiece and subsequently the powder is baked in an oven, in which subsequent to coating and prior to baking the powder adhering to the workpiece is irradiated with electromagnetic radiation within a particular, defined surface portion so that the powder within the defined surface portion will gelate and stick to the workpiece, and in which the color powder adhering to the workpiece outside of said defined surface portion is removed subsequent to irradiation.

Abstract: The performance of phosphor screens can be improved by coating the phosphor dispersion/mixture onto a substrate while the dispersion/mixture contains less than 5% by weight of polymerizable components with a molecular weight less than 300, preferably with less than 5% by weight of polymerizable components having molecular weights less than 500. The polymerizable composition should be photopolymerizable, and other components within the coating to be photohardened which have molecular weights below 300 or 500 should likewise be kept to less than 5% by weight of the composition.

Abstract: Large area decorations of glazings, ceramic paint or the like on glass ceramic, glass, ceramic or similar meltable substrates, in particular on glass ceramic cooking plates, are applied by the new method by means of a laser beam which is widened linearly over the entire width of the area to be decorated, as it were in a zone melting method. The linear energy supply zone is advanced at a speed high enough for essentially only the decorating material to be melted on or burnt in but ensuring that the thermal conduction front does not move appreciably into the substrate material.

Abstract: Printing is conducted at the transparent conducting film unnecessary portion on a substrate 1 with a masking ink having a higher thermal decomposition temperature than that of the transparent conducting film forming composition, and the ink is dried and cured by heat or light to form a masking pattern 2. The portion where a transparent conducting film is to be formed is preferably subjected to ozone cleaning and then coated with a transparent conducting film forming composition comprising an indium compound and/or a tin compound and a solvent to form a transparent conducting film forming composition layer 3. The thus worked substrate is subjected to a heat treatment, causing thermal decomposition of the masking pattern 2 after formation of a transparent conducting film. Then the residues of the masking ink and the transparent conducting film are removed to finally obtain a desired patterned transparent conducting film 4.

Abstract: This invention is a hot melt pressure sensitive adhesive formed by copolymerizing acrylic, or a combination of acrylic and vinyl, monomers, at least one of which is a photoinitiator, with the functional monomer, 1-(1-isocyanato-1methyl ethyl)-3-(1-methyl ethenyl)benzene (m-TMI), to give a saturated polymer with pendant vinyl groups that are crosslinked by UV radiation.

Abstract: The method for firing enamel on a metal article (2), subjected to a prior step for depositing, onto part of its surface, an enamel frit slip, followed by a step for obtaining a bisque on said component, comprises a step for exposing the article to infrared radiation of a maximum emission wavelength in a firing chamber (1).

Abstract: A method and apparatus is disclosed for curing metal particles into continuous metal conductors on a nonconducting substrate. The apparatus includes a generator for supplying radio frequency energy through an impedance matching circuit to a coil positioned proximate to the substrate. The coil and substrate are placed in a chamber which is evacuated prior to curing and then pressurized with nitrogen gas. The electromagnetic flux lines generate eddy currents in the particles which heat them until at least some melt, thereby converting the metal particles into continuous conductors.

Abstract: A method of coating heat sensitive materials with powder paint is described, which is based on repetitive heating cycles of paint coating by radiation example infrared, interspersed with cooling cycles, which there is a temperature difference between the paint coating and substrate such as to allow the filmation and subsequent curing of the paint without damaging the substrate.

Abstract: Methods and apparatus for applying a plastic coating to woven yarn tubing to provide conduit for protecting wiring harnesses and the like. The resulting plastic coating layer is very thin so as to generally follow the contours of the woven yarn tubing, without filling in the valleys, thus minimizing the amount of plastic used. Woven yarn tubing is waterproofed by impregnating with latex sealant, and is continuously pulled by a take-up mechanism along a horizontal axis through a heated die and two treating stations in tandem. Each of the treating stations includes a coating pot containing liquid plastisol material and having a resilient circular exit die through which the tubing exits the coating pot to form a layer of liquid plastisol, and an infrared curing oven which heats the plastisol-coated tubing sufficiently to cure the plastisol layer. The tubing, while coated with uncured plastisol material, is not contacted by any element which would tend to deform the tubing from a circular cross section.

Abstract: Thin film ferroelectric capacitors (10) comprising a ferroelectric film (18) sandwiched between electrodes (16 and 20) for nonvolatile memory operations are rendered more stable by subjecting the capacitors to an anneal following deposition of the top electrode (20). The anneal is done so as to form the interface (22) between the ferroelectric film and the top electrode. Heating in an air oven, laser annealing, or electron bombardment may be used to form the interface. Heating in an air oven is done at a temperature at least equal to the crystallization temperature of the ferroelectric film. Where the ferroelectric film comprises lead zirconate titanate, annealing is done at about 550.degree. to 600.degree. C. for about 10 to 15 minutes. The formation treatment reduces the magnitude of charge associated with the non-switching pulse in the thin film ferroelectric capacitors. Reduction of this charge leads to significantly more stable nonvolatile memory operations in both digital and analog memory devices.

Abstract: A method for producing a bottom resist for a two-layer O.sub.2 /Reactive Ion Etching system which fulfills all the requirements set for such a resist. A varnish layer of a base polymer containing an aromatic, a cross-linking agent and an acid-forming agent is applied to a substrate. The varnish layer is flood-exposed to release a strong acid from the acid-forming agent in the surface region of the layer. This is followed by thermal curing.

Abstract: A method and system for making a three dimensional product wherein the size and shape of a plurality of cross-sectional segments of the three dimensional object are determined which when assembled together in a particular sequence form the desired three dimensional shape. Thin layers of material in the shape of each of the cross-sectional segments are applied in the particular sequence in which they form the three dimensional object. The application of each of the layers is much like a lithographic printing process in that a resin may be applied by a roller in the shape of the cross-sectional segments.

Abstract: Color filter arrays containing one or more colors for liquid crystal displays and other optoelectronic devices are made by using a laser to ablate portions of a coating on either a colored or transparent substrate. Color filter materials are placed into the ablated openings and cured. The number of laser ablated openings in the coated substrate varies, depending on the quantity and types of colors desired.

Abstract: A method of forming solder stops on a thick film, comprising a conductive metal and an inorganic oxide, including the step of directing a laser beam onto the film to form a surface consisting essentially of fused inorganic oxides which acts as a solder stop.

Abstract: A method for grafting hydrophilic monomers containing double bonds onto polymer surfaces in aqueous solution.The grafting is activated by ultraviolet radiation and by the presence in suspension of a photoactivator of controlled particle size distribution.

Abstract: In a process for coating or bonding electronic components and subassemblies with reaction resin mixtures that are stable in storage at room temperature as a one-component system for several months, reaction resin mixtures are used, which contain the following components:a cationically hardenable, solvent-free epoxy resin;a triarylsulphonium salt with hexafluorophosphate, -arsenate or -antimonate as anion, with a mass concentration of 0.01 to 5% (relative to epoxy resin); anda benzylthiolanium salt with hexafluorophosphate, -arsenate or -antimonate as anion, with a mass concentration of 0.01 to 5% (relative to epoxy resin);as well as possibly customary additives.These reaction resin mixtures are hardened through UV radiation and thermally.

Abstract: A method for annealing a deposited material on a substrate structure, where the annealing temperature of the deposited material is greater than the melting temperature of the substrate structure, including the step of inserting the substrate structure into an oven preheated to a temperature above the annealing temperature. The substrate structure is kept in the oven for a time interval wherein the mean temperature of the deposited material is above the annealing temperature and the mean temperature of the substrate structure is below its melting temperature. The substrate structure may be actively cooled while in the oven, thus increasing the time interval the mean temperature of the deposited material can be maintained above the annealing temperature.

Abstract: In the manufacture of an article such as optical fiber which includes a light energy cured coating material, fiber (21) is drawn from a preform (22) and coating with one or preferably two layers (42,44) of light curable coating materials. Afterwards, the coating materials are cured. Increases in manufacturing line speed may be achieved if the cure speed of the coating materials is increased. This is accomplished by the simultaneous application of a magnetic field during irradiation of the curable coating materials to enhance the crosslinking of the coating materials by a free radical polymerization mechanism. Upon absorption of light, a photoinitiator in each composition cleaves to produce two free radical fragments in the spin paired or singlet state. The magnetic field has the effect of enhancing the production of spin parallel radicals which enhances the polymerization initiation of the coating material, thereby allowing an increase in the manufacturing line speed through drawing and coating apparatus.

Abstract: A method of forming a sheet of material with indicia thereon comprises applying indicia to the sheet by an electrostatic copying process in which a toner powder is deposited on the sheet and is heated to cause it to fuse. The sheet of material comprises a flexible support layer that is provided with a porous coating of a latent curable material, preferably in particulate and/or filamentary form and especially one based on an epoxy material.It has been found that the indicia are more indelible than those formed on other surfaces by the same process even though the fused toner is not absorbed by the curable material.

Abstract: An amorphous magnetic film is produced by irradiating laser beams onto a magnetic metallic target and depositing an evaporated material on a substrate. During or after the evaporation process, the film formed on the substrate is annealed at a temperature lower than a crystallization temperature. The annealing process enables elimination of stresses from the film, thereby improving soft magnetic properties.