Abstract: A wipe comprising a high internal phase inverse emulsion disposed in a discontinuous pattern on a substrate. The pattern provides areas coated with the emulsion and areas free of the emulsion. Preferably the emulsion is disposed so that the surface area to volume ratio of the emulsion is minimized. The emulsion locally expresses water during use upon the application of pressure to the wipe. The water is useful for cleaning. The discontinuous pattern of the emulsion provides regions of the substrate which are wetted during use and regions which may remain dry. The wetted regions transfer water to the surface to be cleaned. The dry regions then remove the water from the surface for more efficacious cleaning.

Abstract: An apparatus and method for producing a striped coating on a continuously moving strip are provided, in which the apparatus has a smoothing device including a doctor roll forming a nip with the strip. A stationary partition means is provided, which divides the nip into nip lengths, and upstream of the smoothing device is a means to deposit coating materials on the strip for delivery into the respective nip lengths at predetermined rates. The deposit means maintains a bead of coating material in each nip length and a stripe of coating material is formed on the strip from coating material escaping the respective nip length as the strip passes through the nip.

Abstract: This invention is related to a die set and method for the production of multiple stripes with two different materials A and B adjacent to each other. The special feature of this invention is that a specially designed shim is inserted between two pieces of coating dies. When liquids A and B enter the two sides of the die set separately, B liquid will flow through the distribution passages in the shim to form multiple stripes and then contact stripes of A liquid in the same slot section. The multiple stripes of repeated coating liquids that consists of ABAB patterns will be generated once the multiple stripes are coated and dried on the substrate.

Abstract: A glass frit is prepared by heating an initial glass frit in the presence of a reducing agent so as to reduce metal moiety in the glass structure of the frit and then cooling the reaction mixture. Preferably, the frit prepared is used in a method of forming electrically conducting silver tracks on enamel on glass windows, by applying to window glass an enamel composition containing the frit and on top thereof a silver composition in the shape of the tracks and firing the compositions, such that on the firing the reduced metal moiety reduces silver ions migrating through the enamel composition from the silver composition to elemental silver and thereby prevents or impairs them from interacting with the glass to form visible tracks.

Abstract: A method of applying a pattern to a surface of a substrate includes forming mutually parallel pattern rows applied by at least two output channels. In order to produce a pattern without strip-like visible faults, provision is made for the output channels in each case to be displaced transversely in relation to the pattern rows such that pattern rows can optionally be applied by at least some of the output channels in order to obtain a complete pattern. The individual pattern rows are applied by different output channels and are mixed with one another.

Abstract: A tape roll structure which includes a tape having adhesive on one face, and the tape can be pulled off a tape roll and cut into segments of varying lengths. The tape is provided with a paper tape or coating on one or both sides for receiving written indicia, and which becomes part of a tape segment. Thus, once a tape segment has been attached by adhesive to a marginal edge of a sheet, written indicia can be written on the paper tape or coating so that a tab is immediately formed on a sheet. In a preferred embodiment, a pair of tape rolls are mounted in a shell, and one of the tape rolls carries a paper tape and the other tape roll carries adhesive tape. When the two tapes are pulled from their rolls, the paper tape moves into bonded engagement with one-half of the adhesive tape of the other roll. Then the tapes are cut into a segment and bonded to the sheet to which a tab is to be mounted.

Abstract: A method for enhancing the conductivity of transparent conductive electrodes on display substrates by providing patterned auxiliary metallic layers adjacent to the transparent conductive material. The method of the present invention eliminates the need for aligning the auxiliary metal layers with preexisting transparent conductive electrodes by providing for simultaneous patterning of the auxiliary metal layers and formation of the independently addressable electrodes.

Abstract: Apparatus and methods are disclosed for spraying an adhesive in a selected pattern on a continuously moving web. The method includes the steps of: (a) supplying a predetermined volumetric flow of adhesive to a nozzle; (b) selectively operating the nozzle between an off position and an on position to spray the volumetric flow of the adhesive; (c) diverting the volumetric flow of the adhesive from the nozzle when the nozzle is operated in the off position; and (d) maintaining a back pressure at the nozzle when the nozzle is operated in the off position to provide a substantially instantaneous spray of the adhesive when the nozzle is operated from the off position to the on position.

Abstract: A coating apparatus is disclosed for applying a coating material on one or more zones of a substrate material. In one embodiment, the coating applicators have fluid-wicking strips that apply the coatings directly to the substrate, while in another embodiment, the fluid-wicking strips indirectly apply the coatings to the substrate via feed rolls. Metering mechanisms supply predetermined amounts of coating material to the fluid-wicking strips. Each coating applicator has a housing with a recess for receiving one the fluid-wicking strips therein. One of the fluid-wicking strips is mounted in each housing which has a plurality of transversely spaced passageways. Each passageway of each applicator housing is fluidly coupled to its own separate air actuated metering mechanism which dispenses coating material to the portion of the fluid-wicking strip adjacent thereto. A desired quantity of coating material is simultaneously delivered via the metering mechanisms to each of the applicator housings.

Abstract: Several techniques for forming a colored interference filter coating on a substrate such as polyester film. The interference filter has two metal reflective films, at least one of which is semi-transparent. A layer of transparent acrylate polymer dielectric between the metal layers completes the interference filter, which may be sandwiched between protective layers. The dielectric is formed by evaporating an acrylate monomer having a molecular weight in the range of from 150 to 600. Preferably the acrylate monomer has a molecular weight to acrylate group ratio in the range of from 150 to 400. The acrylate condenses on the substrate and is polymerized in situ for forming a monolithic film with a sufficient thickness to produce an interference color. In several embodiments different areas of the film have different thicknesses for producing different interference colors.

Abstract: The present invention comprises an apparatus for making a selectively-coated web. The apparatus comprises a coating means for applying a coating to a web in a plurality of coated regions, the coated regions being in spaced, parallel relationship to a plurality of uncoated regions. The present invention further comprises support means for supporting the web after coating, the support means comprising a plurality of support members, each of the support members being in registry with an uncoated region. In a preferred embodiment the coating of a beneficial emulsion is applied in selected regions by extrusion. A method of forming a coated web without producing buildup of coating material on idler rollers is also disclosed.

Abstract: Reflective aluminum trim for use in automobiles, trucks, boats and a variety of household and industrial appliances is produced by forming aluminum strip into a desired shape, followed by selective application of a fluoropolymer protective coating to only a partial portion of the show surface of the shaped strip and the application of a thermoplastic to the portions of the show surface not covered by the protective coating. The resulting trim piece has a highly reflective aluminum show surface which has a high distinctness of reflected image. The thermoplastic is preferably co-extruded onto the shaped aluminum strip using an adhesive to bond the thermoplastic directly to an un-coated portion of the aluminum surface. Prior to application of the thermoplastic, a single heating step may be used to cure both the protective coating and the adhesive.

Abstract: A method of manufacturing adhesive tape by applying a coating of liquid adhesive to a surface of a continuous web substrate moving in a longitudinal direction to create an adhesive-free zone on the web substrate that extends in a longitudinal direction between areas of adhesive coating on the web substrate and by contacting the surface of the moving continuous web substrate carrying the applied liquid adhesive coating with a rotating metering rod to obtain an adhesive coating with a predetermined specific thickness, wherein the metering rod has an elastomeric wiper contacting the rod and wiping the rod at a location along the length of the rod that corresponds to the transition between the adhesive-free zone and the adhesivecontaining zone on the coated web substrate, to prevent edge buildup of applied adhesive at the transition on the coated web substrate.

Abstract: Sheets to be coated with water-based coating material, for example a primer and a low adhesion backsize, are supplied from a feeder (1), in end-to-end overlapping relationship, to a dual coater (3) in which the sheets are coated individually on both sides. A sheet inserter (2) is provided, upstream of the dual coater, to insert sheets from a second supply into the sheets from the feeder (1). The dual coated sheets are dried as individual sheets or as a pseudo-web of overlapped sheets. The sheets are then overlapped, unless previously overlapped, and the direction of overlap changed, if necessary, to provide the trailing edge of each sheet on top of the leading edge of each succeeding sheet. The overlapped sheets are conveyed through an adhesive transfer station (7) where stripes (236) of at least partially dried adhesive are coated onto the dual coated sheets from a transfer belt (71).

Abstract: A method is described for reducing linewidth variations in the patterning of photoresists having non-uniform film thickness, comprising overcoating the photoresist with sufficient thickness of a nonreactive coating composition having a refractive index which within .+-.15 percent of that of the refractive index of the photoreist composition; said overcoating being of sufficient thickness such that it will result in about a one wave length phase lag between the oblique rays and the normal incident rays reflecting back from the substrate, upon arriving back at the resist surface. The effective thickness of the overcoating is a function of the exposure wavelength and the size of the numerical aperture of the objective lens used for expose. The overcoating compositions capable of providing the so defined refractive indices ranges, are described. For example, a polyacrylic acid coating composition having a refractive index of 1.5 at a thickness of 2.0 .mu.

Abstract: A paint stripe and a process of applying the paint stripe upon a substantially horizontal surface is provided. Reflective particles are applied in at least two streams upon the substantially fluidic upper surface of the paint stripe. The first stream of particles of greatest size is applied to the paint stripe before subsequent streams, each particle of each of the streams becoming embedded into the fluidic upper surface approximately fifty percent of the maximum dimension of the particles. Capillation of the paint carries the reflective particles of the subsequent streams in an upward manner along the outer surface of the reflective particles of the first stream. The reflective particles of the subsequent streams are then embedded in the fluidic upper surface of the paint stripe at an angle approaching the perpendicular to the horizontal surface.

Abstract: A method and apparatus for applying mortar to the underside of a building block to be laid so that the mortar to be applied is automatically conveyed upwardly from a mortar supply container into a mortaring region where it is applied to the underside of the building block. The mortar can be sprayed onto the building block or applied thereto by a rotating coating roller, thereby automating the application of mortar and also reducing the consumption thereof.

Abstract: The process and apparatus of the present invention teaches how to treat a well-integrated woven or non-woven web of hydrophobic fibers to make selective areas hydrophyllic. It also can be used to make a web of hydrophyllic fibers selectively hydrophobic. It uses a plurality of selectively adjustable covers on an applicator roll rotating in a bath of liquid to place the liquid material on selective areas of the moving web. In a preferred embodiment the web is non-woven and the fibers are hydrophobic in nature, e.g., dry-laid or melt-blown polypropylene or polyethylene fibers or spun-bonded hydrophobic filaments. A woven web made of cotton or other hydrophyllic fibers may also be used if the end result is to create partially hydrophobic areas on a hydrophyllic web. The areas of liquid are positioned on the web only where desired so as to eliminate the excessive cost of unwanted and unnecessary coating material. If the web is hydrophobic, the liquid makes that area hydrophyllic.

Abstract: A system and method for applying fluids, including fiberized hot melt adhesive, onto a substrate from one or more meltblowing die assemblies mounted on a manifold that supplies fluid thereto. At least one of the die assemblies is selected from a group of die assemblies having different configurations of fluid dispensing orifices, wherein various combinations of the different die assembly configurations are mountable onto the manifold to provide a wide range of partial fluid dispensing patterns onto the substrate. Each of the plurality of fluid dispensing orifices are flanked by an air dispensing orifice disposed on opposing sides thereof, wherein air dispensing orifices may extend across a portion of the remaining portion of the meltblowing die assembly void of fluid dispensing orifices.

Abstract: Documents bearing a thin reflective extruded security stripe comprising a leafing aluminum pigment having a gloss characteristic of from 20 to 24 as measured on a Gardner/BYK Microglass meter at a 60.degree. angle. A water soluble dye may be incorporated in the stripe. A method of making the document and a dye containing leafing aluminum pigment for extrusion on the document are also disclosed.

Abstract: A conduit coating which is made by covering a surface thereof with a polymeric material which may include an additive made of bacteriostatic, bacteriocidal, fungicidal, fungistatic or mildew-suppressing material.

Abstract: A patterned multiple antibody substrate for use in biosensors or immunosensors is produced by (1) coating an antibody-adsorbent substrate with a material that resists antibody adsorption, (2) using ion beam sputtering, laser ablation, or mechanical scribing to remove the coating at specific sites on the substrate, and then (3) adsorbing specific antibodies at the sites. The substrate is capable of detecting multiple chemical species simultaneously.

Abstract: Apparatus and method for applying a coating solution to a running substrate using a slot die having two die lips forming a gap therebetween. The gap also defines an outlet for releasing the coating solution to the substrate. The lips have plurality of manifold chambers communicating with gas feeder and coating solution feeder provided in the die lips. The manifold chambers communicate with the outlet. The width of the coating solution is adjustable with the gas pressure applied to the gas feeder.

Abstract: A method for preparing draw-down samples of paint using a draw-down applicator is provided. The draw-down applicator comprises a drawing plate having a bottom drawing surface and a bottom fluid delivery surface; a first support or arm having a bottom sliding surface and being rigidly connected to the first drawing plate; and a second support having a bottom sliding surface and being rigidly connected to the drawing plate. The bottom sliding surfaces of said first and second supports form a first plane, and the bottom drawing surface of said drawing plate is in a second plane. The two planes are parallel but not coplanar. Furthermore, the applicator is a non-metallic material. The method includes forming a puddle of paint on a substrate having a substantially smooth surface and drawing the draw-down applicator over the puddle of paint so that the applicator delivers a substantially uniform thickness of the paint over the substrate.

Abstract: The present invention is a method for spreading spacing particles on a surface of a substrate used to form a liquid crystal display panel. The method comprises the steps of relatively moving the substrate and a spreading nozzle with respect to one another as the spreading nozzle spread the spacing particles such that the spacing particles spread from the spreading nozzle trace a predetermined trace on the surface of the substrate. Electric charge on the substrate is discharged while relatively moving the substrate and the spreading nozzle such that the spreading nozzle spreads the spacing particles on a discharged portion of the surface of the substrate.

Abstract: A barrier device for preventing unwanted penetration of finishing materials from one surface onto another is disclosed. The barrier device is particularly useful to protect one surface from unwanted penetration of paint or varnish while the adjacent surface is coated. The barrier device includes a flexible sheet having a substantial width and a narrower strip capable of retaining an impression. The strip and sheet are applied to a textured surface by pressing the strip onto the surface with sufficient force such that the strip material retains an impression of the texture.

Abstract: A device for the coating of a travelling web (7), preferably a paper web, comprising a back-up element (3), a metering means (9) cooperating therewith and intended for the application onto the web (7) across essentially the full width thereof a coating liquid (13), a coating blade (17) positioned downstream of the metering means (9), and means for feeding the web (9) in the nip between the back-up element (3) and the metering means (9) and between the back-up element (3) and the coating blade (17). The device further comprises at least one edge lubricating means (27) which is positioned adjacent to one edge (43) of the web and upstream of the metering means (9), and which is arranged to deposit along said one edge (43) a string of lubricating liquid at least up to a position cross-wise and inwardly of the web adjacent to the margin of the coating liquid (13) when applied, whereby uneven wear of the coating blade (17) is avoided; and a process for the coating of a travelling web.

Abstract: The invention encompasses the pattern coating of a thick layer of adhesive on a single substrate. The adhesive strips may be continuous or discontinuous on the single substrate. In one preferred embodiment of the invention, the substrate is a release liner and the adhesive is a hot melt, thereby not requiring the use of an extruder in the application of the adhesive onto the substrate. When it is desired to produce a non-foamed product, the web is chilled on a chilled drum. Elimination of this chilling step, results in the formation of a foamed tape product, due to the evaporation of the moisture which is typically contained within the silicone-coated paper web. The product is a thick (10-100 mils), free (no carrier) film of adhesive made to the desired width (3/8" to approximately 6") of a high cohesive strength adhesive, with good temperature resistance (>196.degree. F.), with low bubble content (appears clear), wound into rolls containing from 100-800 feet or greater in length.

Abstract: A net of parallel lines is generated with the aid of a computer. The ratio of the width to the spacing of two consecutive lines is equal to r.sub.o. The spacing and width of the lines are successively modulated such that their ratio is equal to r.sub.o. Subsequently, the straight lines can if so chosen be transformed into differently shaped lines or the width of the strokes can be altered in order to reproduce geometrical or artistic images.

Abstract: In a coating device, a nozzle is configured by combining a front block and at least one back block. A front block includes a portion which is projected toward the base member with respect to the back block, and a top face of the projected portion is processed into a curved face having a predetermined curvature radius. A top face of the back block, which is opposed to the base material, is processed into a flat face, and a plurality of discharging openings are provided therein for discharging a coating material therethrough. The base material first travels along the curved face of the front block. The base member then travels over the flat face of the back block substantially in parallel with the flat face, while the coating material is discharged through the discharging openings, thus forming a stripe-shaped coating film on the surface of the base material. A line width and a thickness of the thus formed stripe-shape coating film is controlled to stay at designed values and fluctuation thereof are eliminated.

Abstract: A stripe terminator (18) includes a carrier plate (20) for carrying a matrix of chips (12), a carrier plate shuttle (22) for longitudinally transporting the carrier plate (20) along guide rails (24), a paste platen (26), a doctor blade for spreading a paste layer (30) on platen (26) and a paste transfer assembly (32) for transferring paste from the platen (26) to the chips (12). The carrier plate (20) is reciprocated as the paste is applied to the chips (12) to form more uniform termination stripes (14) with wraparound segments (16). A novel ribbed paste tray (72) and contoured doctor blade (74) are also disclosed for bottom side paste application.

Abstract: Wet color cards prepared with water-based emulsion paints applied in layers of at least 75 g/m.sup.2 are dried using infra-red dryers irradiating the uncoated side of the cardboard or paper cards.

Abstract: An apparatus for forming an optical element on the surface of a substrate by ejecting a curable light guide forming liquid from a nozzle onto the substrate and curing the curable light guide forming liquid. A waveguide may be formed by moving the nozzle in a linear pattern over the surface of the substrate during ejection of the liquid from the nozzle. Curing the liquid may include exposing the liquid to ultraviolet radiation, and the radiation may be applied to only a small portion of the liquid. A multilayered waveguide may be formed by ejecting a further light guide forming liquid onto the first and curing it. A core and cladding may be formed simultaneously by ejecting core forming liquid from an inner tube and cladding forming liquid from an annulus about the inner tube. The waveguide may be formed in a groove, and a splitter may be formed by branching a second waveguide from a first, or by laying out two parallel waveguides and connecting them.

Abstract: Chemical and electrical poling is described, as well as an improved optical converter having a solid state body which employs the same.

Abstract: The disclosed striping composition provides a fast cure on road or highway surfaces. The striping composition is a two-part (part A and part B) polyurethane forming system having good adhesion characteristics to a road or highway surface, and weathering and yellowing resistance over time. Part A contains an aliphatic polyol and part B contains an aliphatic polyisocyanate.

Abstract: Rolls of heat-printable material have heat-printed end warning stripes for several feet along the edges of the material at the end of the roll. The stripes are formed by pressing a heated roller into contact with the material as it is slit and wound on take-up cores during manufacture.

Abstract: A barrier device for preventing unwanted penetration of finishing materials from one surface onto another. The barrier device is particularly useful to protect one surface from unwanted penetration of paint or varnish while the adjacent surface is coated. The barrier device includes a flexible sheet having a substantial width and a narrower strip capable of retaining an impression. The strip and sheet are applied to a textured surface by pressing the strip onto the surface with sufficient force such that the strip material retains an impression of the texture.

Abstract: A method for manufacturing a laminate comprising at least two sheets of magnetic material is disclosed. The laminate may be used to form a stacked transformer core. The method increases the productivity of the core-stacking process, decreases the core loss destruction factor, decreases total core loss, decreases acoustic noise generated by the electrical device employing the laminate, and does all of this in a manner which is commercially practical. The method comprises applying an adhesive, preferably a hot melt adhesive, in a pattern of thin beads onto one side of a first lamina or sheet of magnetic material, the pattern comprising a plurality of lines, the lines being substantially parallel to each other and substantially perpendicular to a direction of grain orientation or rolling direction of the lamina. A second lamina is then stacked onto the one side of the first lamina, and then a compressive force is applied to specified areas of the laminate.

Abstract: A printed circuit board ("PCB") is moved on a conveyor towards an ultrasonic spray head ("head") that is mounted below the PCB on a guide rail. The guide rail and the direction of motion of the PCB define an acute angle. When the PCB reaches a predetermined position, the head begins a motion across the PCB, spraying a rectangular swatch of soldering flux. The velocity of the head is controlled such that the swatch of flux is substantially perpendicular to the direction of motion of the PCB. After spraying, the head deactivates and reciprocates back across the PCB such that no flux is sprayed. The cycle repeats after a predetermined delay whereby adjacent swatches of flux do not substantially overlap.

Abstract: A dispensing apparatus for applying a pulsed thin stream of flux to a surface such as a printed circuit board. The stream of flux is pulsed at a high rate to apply a thin layer of flux on the surface. The dispensing head consists of multiple orifices for applying the flux to the board. The streams of flux are angularly disposed and a pan is positioned for capturing flux which passes by the board. The board is conveyed by the dispensing head. Controls are incorporated for board sensing and identification, application width selection, precise pressure control, fluid flow monitoring and system safety conditions.

Abstract: A process is disclosed for applying to a surface of a support member at least one ribbon-like stream of a first coating composition side-by-side with at least one ribbon-like stream of a second coating composition comprising providing an extrusion die source for the ribbon-like stream of the first coating composition, providing a slide die source for the ribbon-like stream of the second coating composition, establishing relative motion between the surface of the support member and the source of the ribbon-like streams, simultaneously and continuously applying the ribbon-like streams to the surface of the support member whereby the ribbon-like streams extend in the direction of relative movement of the surface of the support member and the sources of the ribbon-like streams to form a continuous unitary layer having a boundary between the side-by-side ribbon-like streams on the surface of the support member and drying the continuous unitary layer to form a dried coating of the first coating composition side-by-

Abstract: The invention relates to a method and device for applying a material pattern by means of a sequentially operating applicator to a substrate moving relative to said applicator, by way of a control valve for liquid material, in particular a hot melt, said valve being controllable for opening and closing, which material pattern in the direction of movement is sub-divided into pattern parts with slight spacing between them, and there being at least two control valves connected to the material supply, and the respective valves being made to open and close sequentially. A considerably faster operation is achieved this way.

Abstract: The present invention is a method and apparatus for curtain coating a support with one or more layers of a liquid coating composition. Stripes of a liquid coating composition are formed at the edges of the free falling curtain. These stripes are guided by edge guides which are positioned so that there is an uncoated margin of support at each edge of the support. Liquid is removed from the edges of the free falling curtain near the point of impingement on the support. Drag that emanates from the edge guide is contained within the stripe which is removed thereby producing a more uniform coating. In addition free falling curtains having an extremely low flow rate can be coated that previously were not possible.

Abstract: A method for coating strip material by applying polymer resin having a high solids content to at least one face of strip material with a coating roll having a pattern of grooves in the surface of the roll and curing the polymer resin on said strip.

Abstract: An apparatus and method for forming color video display screens of the line or stripe screen type are disclosed. Tubules form menisci of screen element liquids which are contacted with a moving display screen surface to produce screen element lines comprising the screen.

Abstract: This invention relates to the treatment of paper with material in repetitive patterns. The treatment patterns made with this invention can be altered by changing apparatus operating parameters.

Abstract: The present invention provides metal/polymer composites including a plastic substrate having longitudinally extending conductive members, adapted to make bonded electrical connections to an array of closely spaced conductive terminal pads. In general terms, the metal/polymer composites include a thin, flexible sheet-like plastic substrate having a plurality of longitudinally extending, regularly spaced, metal pathways or members on one major surface thereof.

Abstract: A process for providing indicia to the surface of an article. The process comprising the steps of: providing an article having material initially forming at least a portion of its exterior surface; coating at least part of the material whereat indicia is to be provided to thereby form a film; contacting, with radiation from a radiation beam, indicia areas of the film intended to be provided with indicia, the radiation thereby removing the film and modifying the surface of the material of the indicia areas and also forming a mask in the non-indicia areas of the film; applying an ink to the indicia areas thereby forming the indicia on the surface; drying the ink; and removing the film.

Abstract: A heat diffuser for conducting heat away from a heat generating assembly. The heat diffuser is composed of a heat-conducting polymeric material. The heat diffuser is formed by dispensing strips of the polymeric material directly onto a surface area of the assembly. A computer-controlled nozzle assembly is utilized to disperse the polymeric material. The heat diffuser may be composed of multiple layers wherein the polymeric material for different layers has different mechanical and/or heat conducting properties.

Abstract: A gravure roll and associated coating methods are disclosed that produces a uniform coating gradient on a substrate. The gravure roll comprising a series of cells arranged in circumferential line density sections in which the line densities progressively increase from section to section, and in which the cell volumes progressively decrease within each section, and in which the cell volumes at the end of one section are substantially the same as the cell volumes at the beginning of the next adjacent section.