Abstract: An anisotropically conductive adhesive composition (10) for use in electrically connecting at least one conductive area (14) on one substrate (12) with at least one conductive area (20) on a second substrate (18) is disclosed. The composition (10) is comprised of a mixture of conductive particles and a nonconductive adhesive binder (26). The conductive particles are dispersed throughout the binder in a plurality of noncontiguous conductive units (24) such that, upon applying a layer (30) of the composition (10) over both the conductive and insulating areas (14, 16) on one substrate (12) and positioning in a conducting relationship and adhering said at least one conductive area (20) on the second substrate (18) with said at least one conductive area (14) on the first substrate (12), the units (24) establish electrical connection between the adhered conductive areas (14, 20) on the two substrates (12, 18).

Abstract: A nonwoven textile panel for use as a fire retardant and sound deadening barrier in the interiors of aircraft, comprised of five layers of nonwoven textile fibers of polyphenylene sulfide fibers and Nomex brand aramid fibers that have been carded, cross-lapped, needle punched and thermally bonded by heating the panel to the temperature softening point of the polyphenylene sulfide fibers, whose panel exterior is comprised of a skin of polyvinyl chloride that has been adhered to the outermost fibrous layer. The fibers are capable of being thermoformed and retaining a permanent shape due to the thermoplastic properties of the polyphenylene sulfide fibers. An important alternative embodiment uses a layer of polyester polyurethane foam underneath the vinyl to shield it from the heat radiating properties of the polyphenylene sulfide and prevent puckering of the vinyl material during the processing.

Abstract: A panel of microporous thermal insulation which comprises an envelope of glass fibre cloth which surrounds and is bonded to a block of microporous thermal insulation is manufactured by heating the glass fibre cloth so as to drive off organic material, applying a silane in an acidic solution to the cloth, drying the cloth in order to produce cross-linking of the silane so as to cause the cloth to stiffen, and applying to the cloth an aqueous suspension of particulate silica, an aqueous solution of sodium silicate or potassium silicate, or a cellulose solution. Microporous thermal insulation is introduced into a bag mode from the cloth and the bag is then compressed to consolidate the insulating material and to produce a bond between the insulating material and the bag.

Abstract: A retroreflective sheeting utilizing a particular polymer as the bead bond layer is disclosed. The polymeric bead bond comprises urethane and urea linkages, and has a stage prior to thermosetting in which it may be softened by the application of heat and in which it has a relatively nontacky character. The retroreflective sheeting disclosed possesses the unique combination of high reflectance and superior exterior durability.

Abstract: Packaging pads comprise top and bottom sheets laminated together along peripheral surface portions with a pocket of comminuted filler material centrally disposed between the sheets. Apparatus for manufacturing the pads continuously feeds an endless bottom sheet along a predetermined travel path, and liquid adhesive is applied to the upper surface of the sheet as it so travels. A stream of filler material is divided into spaced apart individual pocket amounts and these filler amounts are joined to the adhesive coated surface of the bottom sheet. A top sheet coated with liquid adhesive on the underside thereof is laminated onto the bottom sheet and the pocket amounts of filler material. The thus formed continuous laminate is transversely cut midway between adjacent pockets of filler material to thereby form individual packaging pads.

Abstract: The invention is generally accomplished by providing a roll having cavities suitable for retaining small quantities of particulate material. The roll further is adapted to be rotated such that the particulate material is deposited onto a web in discrete areas. These areas correspond to the depressions on the roll. The apparatus and method of the invention further provides in its preferred form a roll applicator device for adhesive having a series of lands and valleys wherein the lands correspond to the areas between the discrete particulate material. The applicator roll provides adhesive on the land areas that is transferred to a web of material which is brought into contact with the substrate bearing the discrete deposits of particulate material and sealed thereto. There is thereby provided areas of discrete particulate material securely separated by the adhesive connected webs.

Abstract: An elongated spacer is disclosed for use in separating the glass panes in multiple-glazed thermal windows. The spacer has an elongated hollow interior for storing a dessicant material and a plurality of moisture barrier partitions at intervals along the length of the interior. The spacers are originally manufactured in oversized lengths and later cut to fit particular windows. The partitions divide the elongated interior into subcompartments, and when the spacer is cut to length the partitions confine moisture contamination and dessicant loss to the particular subcompartment which is cut.

Abstract: Described is a gas phase permeable filter and method for making same comprising the steps:1. providing a gas phase permeable substrate having opposite surfaces;2. applying an adhesive to one or both of the surfaces of the substrate;3. applying particulate gas phase odor-removing means to the adhesive coated surface or surfaces of the substrate;4. drying the adhesive; and5. assembling the substrate in a desired filter configuration wherein the outer surface of the filter is a surface of the substrate free of particulate gas phase odor-removing means and the inner surface of the filter is a surface of the substrate coated with the particulate gas phase odor-removing means adhesively secured thereto.

Abstract: An article of manufacture which is a conductive floor tile for control of generation of static electricity and method of installation. The tile includes a thin, hard layer of plastic material having bonded to it a lamination which is an electrically conductive mesh screen which is bonded to the top surface lamination by an electrically conductive adhesive. The product is a tile, the tiles being adapted for being bonded to a surface adjacent to each other with electrically conductive strips positioned beneath the joints between adjacent tiles to provide electrical continuity. The method includes the fabrication of the tiles and the steps in the installation of the tiles as described by being bonded to a surface or subsurface.

Abstract: Phosphorescent material including, in addition to a support layer of substantially opaque material, a body of substantially iridescent material providing an iridescent decorative effect in visible light and a body of phosphorescent material intermediate the support layer and transparent iridescent material and which phosphorescent material provides after-glow in darkness; and processes for making the same.

Abstract: A friction element with a riveted friction lining, especially for highly stressed drum brakes, in which the mating surface (5) of the friction lining (2) to the lining carrier (1) and/or the opposing surface (6) of the lining carrier (1) to the friction layer (2) is provided with a multiplicity of particles (7) which are harder than the material of the opposing surface (6) of the lining carrier (1).

Abstract: Handle (1) attached to a domestic container (2) by means of an adhesive (3) comprises spacing strips or projections (1.2) on the edge of its contact area (1.1), said strips or projections exactly defining the layer thickness of adhesive (3) and ensuring access of ambient air to the adhesive layer through a circumferential laterally open air gap.

Abstract: Multiple layered plastic sheets is produced by sequentially disposing at least two powdered flowable materials onto a melted layer of plastic being conveyed in a given direction. Each material corresponds to a separate layer of the resulting multilayer sheet.

Abstract: A method of bonding elements together with a bond of high strength and good electrical conductivity which comprises: applying an unfilled polyimide resin between surfaces of the elements to be bonded, heat treating said unfilled polyimide resin in stages between a temperature range of about 40.degree. to 365.degree. C. to form a strong adhesive bond between said elements, applying a metal-filled polyimide resin overcoat between said elements so as to provide electrical connection therebetween, and heat treating said metal-filled polyimide resin with substantially the same temperature profile as the unfilled polyimide resin. The present invention is also concerned with an adhesive, resilient, substantially void free bonding combination for providing a high strength, electrically conductive adhesive attachment between electrically conductive elements which comprises a major amount of an unfilled polyimide resin and a minor amount of a metal-filled polyimide resin.

Abstract: A method of forming perforations in polymer film includes the steps of forming a conductive film pattern on the film preferably in a bow tie shape using a material with a moderate resistivity and applying a microwave field across the film for a few seconds whereupon sufficient electrical energy is dissipated in the conductive spot to perforate the polymer. This method is operative even when the polymer film is laminated between layers of other dielectric material prior to the microwave processing.

Abstract: For producing cushionings, a first layer (11) of thermoplastic, weldable synthetic material is placed into a templet (17), whereupon a padding material (12, 13, 14, 15) is placed thereon as an intermediate layer. The padding material thereby keeps uncovered areas of the first layer (11), which areas are subsequently welded with a second layer (16) of thermoplastic, weldable synthetic material placed onto the padding material (14). Welding is only effected at areas in which the layers (11, 16) are, without interposition of padding material, directly pressed one against the other. The inner contour (18) of the templet (17) essentially corresponds to the outer contour of the layers (11, 16). The templet (17) is formed of a material having high dielectric losses, so that a tight welding seam is reliably obtained at the edge of the layers (11, 16).

Abstract: The invention is a method for forming a solid polymer electrolyte structure comprising:(a) heating a fluorocarbon membrane, while it is in its thermoplastic form, to a temperature at which it softens;(b) contacting a plurality of electrically conductive, catalytically active particles with at least a portion of one face of the membrane, while said membrane is in a softened state;(c) subjecting the membrane/particle combination to a pressure sufficient to embed at least a portion of the particles into the membrane;(d) contacting the particulated membrane with an electrically conductive, hydraulically permeable matrix,(e) subjecting the particulated membrane/matrix combination to a pressure sufficient to embed at least a portion of the matrix into the particulated membrane.

Abstract: A method of bonding propellant to the insulation in a motor chamber by use f an adhesive and powder granule layer.

Abstract: A new embedded-lens retroreflective sheeting which exhibits superior properties, including superior angularity, and which is made by a new method of manufacture involving lamination techniques. Microspheres are embedded into a first polymeric layer to less than one-half the average diameter of the microspheres, and a pre-formed spacing film is laminated to the microsphere covered surface of the first layer so as to obtain conformation of the spacing film in a substantially constant thickness over a useful portion of the back surface of the microspheres.

Abstract: The present invention provides a layered absorbent structure, the structure having an upper surface and a lower surface. The structure comprises:(a) n webs of fibrous material, n being an integer of two or more. The webs are layered such that there is an uppermost web, a lowermost web, n-2 intermediate webs, and n-1 interfaces of two opposed adjacent contacting surfaces of adjacent webs. Each of the interfaces has a surface area.(b) Absorbent particles forming a discontinuous layer at one or more of the interfaces.The opposed adjacent contacting surfaces at each interface where particles are present are substantially entirely frangibly bonded by fiber entanglement between the contacting surfaces. The particles are immobilized at said interface(s) substantially entirely by fiber entrapment.

Abstract: A method for laminating a composite assembly having outer films of plastic to provide such a composite assembly without appreciable transverse curl. The method includes the steps of preparing two oppositely facing outer films which may be of bi-axially oriented plastic. Each film may have an outer layer of a tough abrasion resistant material and an inner layer of thermoplastic bonding resin. In one embodiment, a portion of the inner layer of thermoplastic bonding resin may be coated with a strip of electrically conductive material. The inner layers of thermoplastic bonding resins are heated and the films are brought together in a common plane. In one embodiment, a central core is inserted between the converging films at spaced intervals. The outer films and the central core are laminated by passing them between first and second pairs of pressure rolls. The first and second pairs of pressure rolls are tilted at equal and opposite angles to the plane of the films.

Abstract: To manufacture a seed mat, a conveyor moves a layer of straw from a distribution bin where it is distributed against the top run of the conveyor belt which carries it underneath low pressure glue sprayers. After the glue is sprayed on, starter fertilizer granules are gravity fed on and a layer of paper is applied on top of it with a pressure roller. Glue is lightly sprayed on top of the paper and seed properly distributed in a fashion so that it may be visibly observed for quality control. After the seeds have been distributed in the glue, another layer of paper is placed on top of it and the mat runs through a drying oven to remove excess moisture at a temperature of between 100 to 140 degrees Fahrenheit for between one minute and three minutes.

Abstract: A method for manufacturing a fuel cell electrolyte matrix comprises the steps of providing a fuel electrode and oxidizing electrode respectively coated with a catalyst layer on one side, forming a layer of powdery electrolyte-resistive material on the surface of at least one of the catalyst layers, coating a paste layer prepared from acid electrolyte and powdery electrolyte-resistive material on the powder layer or catalyst layer of the fuel electrode and/or the powder layer or catalyst layer of the oxidizing electrode, tightly superposing the fuel electrode and oxidizing electrode on each other with the paste layer and powder layer interposed therebetween, thereby forming an electrolyte matrix between both electrodes.

Abstract: A disposable waste-containment garment such as a disposable diaper, an external incontinent protection garment for adults (e.g. adult incontinent briefs), an external catamenial, or a disposable liner for either a disposable diaper or an incontinent brief. The garment, which may be elasticized by, for example, having elasticized leg cuffs and waistbands, comprises an absorbent core comprising substantially unbonded fibers disposed between a liquid permeable lamina and a liquid impermeable backsheet, and the liquid permeable lamina and the absorbent core are bonded together in face to face relation with an open pattern of adhesive: preferably a fine scale reticulated network of filaments of pressure sensitive hot melt adhesive having a weight of from about one-half (1/2) milligram to about three (3) milligrams per square inch (from about 0.8 to about 4.7 grams per square meter) but, more preferably, from about one-and-three-tenths (1.3) milligrams to about two-and-three-tenths (2.

Abstract: Method and apparatus for automatically and continuously forming hygienic disposable pads which includes a fluff forming means and a fluff shaping means. The shaped fluff is passed by a plurality of operation performing stations wherein sheet material is applied to form a package wherein adhesive material is applied to sheet the package and form a functional part of the pad.

Abstract: The dimensional stability of a composite wood panel having two surface wood veneer sheets with their grains disposed in the same direction and a core of adhesively bonded biomass particles such as processed wood particles is improved by including a third wood veneer sheet having its grain substantially perpendicular to the grains of the surface veneer sheets substantially centrally disposed in the core between the surface veneer sheets. The panel may be used as a wood structural panel in buildings, in furniture, or the like.

Abstract: Handleable and machineable shapes of thermal insulation material are made by compacting finely divided thermal insulation material into the cells of a reinforcing honeycomb structure.The finely divided thermal insulation material may be, for example, silica aerogel, pyrogenic silica, carbon black, silica gel, volatilized silica, calcium silicate, vermiculite or perlite, or finely divided metal oxides such as alumina or titania. The finely divided thermal insulation material may include an infra-red opacifier and/or reinforcing fibres.The reinforcing honeycomb structure may be made from, for example, metals such as aluminium foil, inorganic materials such as ceramics, organic materials such as plastics materials, woven fabrics or paper. A rigidiser may be employed.The shapes of thermal insulation material are substantially rigid and may be machined, for example, by mechanical or laser cutting devices, or may be formed, for example by rolling, into curved or other shaped materials.

Abstract: Joining together two materials by a mechanical interlock resulting from "chips" at their interface is disclosed. The chips, composed of one of the two materials to be joined or of a third material are partially embedded into the surface of the first material when that material is formed so as to form surfaces which "overhang" the first material. Thereafter, the second material is formed against the overhanging surfaces of the chips to establish the mechanical interlock. This technique is particularly useful in anchoring a dissimilar material to a polymeric material having poor bondability and/or a high melt temperature, for example fluoropolymers, as illustrated by the forming of a liner for a pump casing, or the like, by rotational molding.

Abstract: An addition polymer of a water insoluble soft monomer, a water soluble anionic monomer and, optionally, a water soluble nonionic monomer and water insoluble hard monomer is neutralized to at least about 75%, and formed into a sheet. A laundry care additive, as a bleach, may be stored between a pair of opposed heat sealed sheets to provide a laundry care product adapted to be introduced into a laundry wash.

Abstract: The method of sealing and bonding faying surfaces of laminated graphite reinforced epoxy plates, including the steps of mixing an uncured epoxy resin with a filler of carbon microspheres, impregnating a layer of spaced glass fibers or cloth with the mixture, positioning the impregnated fibers between the faying surfaces of overlapping plates, fastening the plates together, and curing the resin. When it is necessary to repair the seal, the fasteners are removed and the plates are separated with a wedge at the seal bondline without damaging the plate laminations.

Abstract: The use of thermally insulated bodies is determined by their insulative properties, on the one hand, and by the economy of their fabrication on the other hand. A particularly simple method for manufacturing a thermally insulated body, e.g. a pipe, with inner and outer shells, especially with metallic inner and outer shells, forming an intermediate space which is filled with porous particulate and/or porous powdered insulating material, evacuated and hermetically sealed consists in first evacuating the intermediate space between the inner and outer shell, maintaining the space under vacuum and then introducing the insulating material from a reservoir maintained under vacuum and sealing the intermediate space.

Abstract: The present invention is a method and structure which produces extremely thin, electrically conductive epoxy bonds between two substrates. Copper microspheres, having an average diameter of about 2 microns are bound in an epoxy layer which bonds two substrates together. The microspheres make electrical contact between the substrates while providing intersphere gaps which are filled with the epoxy which actually bonds the substrates together.

Abstract: The present invention comprises method and apparatus for substantially uniformly distributing a layer of discrete particles along a predetermined portion of the uppermost surface of a moving porous web so that the particles occupy less than 100% of the predetermined portion of the uppermost surface of said moving web.

Abstract: A decorative laminate having a differential texture and a differential gloss, and a method of manufacture therefor, are provided wherein the laminate has an embossed surface comprising raised segments which contain PVC resin particles adjoining recessed segments which do not contain PVC resin particles whereby the raised and recessed segments impart a relief pattern on the surface of the decorative laminate, and the raised segments have a rougher surface texture and a lower gloss than the recessed segments. The decorative article is useful as a floor covering.

Abstract: A semiconductor die attach adhesive is provided which is formed of a plurality of spacers formed in a suspension of silver filled glass. In one embodiment of this invention, the spacers are spheres. The spacers utilized in one embodiment of this invention have a melting temperature below the temperature at which the solvents are evaporated from the die attach adhesive. In this manner, as the solvents are driven from the silver filled glass during the die attach operation, thus causing the volume of the silver filled glass to decrease, the spacers utilized in this invention partially melt, thus decreasing their thickness. This decreased thickness of the spacers decreases the separation between the die and the substrate, thus preventing the formation of voids within the die attach adhesive. In one embodiment, the spacers are formed of a lead/tin alloy.

Abstract: A composite useful as a ski sole comprising polyethylene particles in a polyethylene film, the former having a greater hardness or higher melt index than the latter, which is capable of renewably forming fibrils extending from a surface thereof under the abrasion characteristic of skiing conditions. The particles may have been treated with a material which is incompatible with or reduces the adhesion to the film-forming polyethylene.

Abstract: A fire retardant material is formed by intimately associating the unexpanded form of perlite in association with a permeable mass of silica glass, said association is formed by permeating said perlite into said mass of glass. Preferedly the composition comprises particles of unexpanded perlite less than 100 mesh and preferably no larger than 200 mesh and the permeable glass comprises a glass fiber mat. The fire retardant material can be formed as a unified body capable of being applied onto other structural components or alternately, it can be intimately bonded to the surface of structural components as a veneer layer. Upon exposure to combustion temperatures the perlite expands from its unexpanded form to its expanded form at or near the deformation point of the glass mat followed by reaction of the perlite and the glass to form a flame-impenetrable ceramic.

Abstract: A new embedded-lens retroreflective sheeting which exhibits superior properties, including superior angularity, and which is made by a new method of manufacture involving lamination techniques. Microspheres are embedded into a first polymeric layer to less than one-half the average diameter of the microspheres, and a pre-formed spacing film is laminated to the microsphere covered surface of the first layer so as to obtain conformation of the spacing film in a substantially constant thickness over a useful portion of the back surface of the microspheres.

Abstract: A bonding method which uses two solutions, one being anionic and the other being cationic, to lay down alternating layers of particles of accurate dimension onto members which are to be bonded. Thereafter, the layers are placed in contact, and the members are bonded together by diffusion bonding techniques.

Abstract: A method is provided for compacting viscous polymeric molding compositions preparatory to compression molding to substantially improve the physical properties of articles molded therefrom. Suitable compositions include those filled with a geometric reinforcing particulate filler that are flowable and thermosettable when compression molded. The method comprises forming a slab of a said filler composition and thereafter reducing its thickness by passing it between spaced-apart pairs of compression means. The pair members of the means are spaced apart to ultimately substantially reduce its thickness. The method yields unexpected improvements in the tensile strength, isotropy and surface characteristics of articles compression molded from the compounds.

Abstract: A one-time electrically-activated switch is composed of a cured polymeric binder which contains a powdered conductive material in an amount sufficient to establish particle-to-particle contact throughout the binder and in which the material powder particles have a non-conductive oxide surface sufficient to resist the flow of electricity below a given threshold. When a sufficiently high voltage is applied to the switch, the break-down voltage of the oxide layer is exceeded and avalanche current is permitted to flow. As a result, the oxide layer on the conductive particles breaks down along the break-down path and forms an irreversible low-impedance connection.

Abstract: A flexible printed circuit is secured with adhesive to a glass or plastics substrate. Electrical connection between the tracks of the printed circuit and co-operating tracks on the substrate is made by way of conductive fibers with which the adhesive is loaded in such a proportion that no bridging electrical contact is established between laterally adjacent tracks.

Abstract: An improved rigid filter plate for sludge dewatering is comprised of a filter element of two or more sizes within the range of 0.2 to 0.002 inch of irregular hard particles of aluminum oxide or similar materials, and of a supporting element of larger particles all bonded with an adhesive bonding agent. A process for manufacturing the improved rigid filter plate is also set forth.

Abstract: A laminated mineral fibre mat consisting of substantially randomly arranged mineral fibres which are held together by organic binders where they cross one another and which form the mat and of a lamination adhering to the mat by means of an organic adhesive, characterized in that a plane substantially free from organic binder is provided in the mat parallel to and in the vicinity of the lamination, whereby the laminated product is rendered fire resistant. The binder-free zone is created prior to lamination by removal of the binder from the mat.

Abstract: A precision positioning system wherein a curable, non-fluid, plastic bonding agent is applied between the object to be positioned and the object on which it is to be positioned and the object is positioned before the bonding agent hardens, whereafter it is fixed in position by the hardening of the bonding agent.

Abstract: A process for fixing wear-resistant armoring tiles to cement mortar. In accordance with the process, the back sides of the tiles are coated with a mixture of polyester epoxy resin composition including sand and quartz or sand powder, with a curing agent. A material having an affinity for the cement mortar (like quartz sand or lavalite) is dusted and rolled into the coated back side of the tiles, so as to thoroughly be mixed up with the resin mixture coating. After the hardening of the coating including the material having affinity to cement mortar, the tiles are embedded in the cement mortar. Accordingly, this process substantially eliminates the well known poor adhesive properties of such tiles with respect to cement mortar.

Abstract: An improved rigid filter plate for sludge dewatering is comprised of a filter element of two or more sizes within the range of 8 to 100 grid of jagged, irregular hard particles of aluminum oxide or similar materials, and of a supporting element of larger particles all bonded with an adhesive bonding agent. The particles in the filtering element increase in average diameter progressing from the upper surface to the lower surface of the element. A process for manufacturing the improved rigid filter plate is also set forth.

Abstract: A fibrous web carried by a thin film disposed on a conveyor passes under a number of spray tubes which pour thereon a plastic material in liquid form which has been de-gassed under vacuum in a gas eliminating apparatus. The liquid absorbs gases from the fibres and overflows laterally into a lower trough from which it is recycled into the gas eliminating apparatus. The web is thus progressively de-gassed and impregnated with de-gassed plastic material. It is then covered by another thin film to form a sandwiched complex product for further operations.

Abstract: A method of manufacturing a goods of laminated materials which comprises the steps of wetting with a solvent one face of a first layer of a base material, of applying on to said face a second layer of pre-expanded pellets of a plastic, and of injecting and expanding directly on said second layer a third layer of a plastic.

Abstract: A laminated article comprising a plurality of abrasive resistant ceramic tiles secured to an elastomeric polyurethane cushioning support by means of a multitude of short thin fibers having major portions thereof embedded within an epoxy resin bonded to the tiles is fabricated by applying a thin layer of the resin in an uncured liquid phase to the tiles, applying a coating of the fibers to the liquid resin such that minor portions of the fibers in contact with the resin are wet thereby and the remaining major portions of the fibers extend from the resin layer, curing the resin to secure the fibers therein and to bond the resin to the tiles, applying a layer of a thermosetting polyurethane in an unpolymerized liquid phase to the fiber impregnated resin layer, and thereafter curing the polyurethane layer.