Abstract: A composite is produced by forming tapes comprised of a mixture of infiltration-promoting material and organic binding material, disposing a layer of boron nitride coated fibrous material between at least two of the tapes forming a layered structure, laminating the layered structure, heating the layered structure to remove organic binding material and infiltrating the resulting porous body with a solution of boron and silicon.

Abstract: Pretreatment of elastomer substrate surfaces with aqueous solutions of monopersulfate compound (MPS) and the improved adhesive bonds obtained between such pretreated substrate surfaces and other substrates.

Abstract: A composite plate-shaped fuel cell component includes two electrically conductive porous plates juxtaposed and in area electrical contact with one another at an interface, and a sealant body accommodated in and completely filling the pores of a sealed region of each of the porous plates that extends to a predetermined distance from the interface into the respective porous plate to form a fluid impermeable barrier between the porous plates and to bond the porous plates to one another at the interface. The sealant body includes at least one layer of a fluoroelastomer sealant that fills all of the pores of at least one of the sealed regions.

Abstract: Novel lower temperature hot melt adhesive and coating composition that melts at temperatures less than 190.degree. F. (about 87.8.degree. C). This composition has a sufficient modulus to bind ophthalmic lenses to metal blocks during grinding processes. The composition also exhibits low melt viscosity and may be mechanically removed without leaving significant residue. Composition comprises a resin, a tackifier, a wax (generally with a molecular weight less than 600), and an optional stabilizer.

Abstract: A method of bonding a plastic substrate with an alpha-cyanoacrylate adhesive in which a primer comprising an ethylenediamine is used. The method is particularly suitable for use in bonding polyolefins in the consumer market.

Abstract: The present invention relates to a process for bonding a molded article of a thermoplastic saturated norbornene resin in which when the molded article is bonded to an adherend widely different from the molded article in coefficient of linear expansion, the adhesion surface of the molded article and that of the adherend are stuck together with an adhesive composed mainly of an epoxy resin which has an elasticity (Shore hardness D: about 40 or less) imparted by modification with a polymer having reactive silyl groups, and then the adhesive is cured. Thus, there is provided such an excellent bonding process that the adhesive strength is hardly deteriorated by a temperature change.

Abstract: A composite intermediate structure for joining two dissimilar materials together. The structure has a non-porous base with two bonding faces. A porous member is bonded to each of the faces. The base may be a metallic foil and the porous members may each be a metallic mesh.

Abstract: The disclosure relates to a method for forming a porous sheet comprising a plurality of porous sheets such as foamed sheet, mesh sheet and nonwoven fabric sheet. These sheets are adhered and layered to each other either by a melting or with an adhesive or by layering without each other with adhering these sheets to each other. Then, the porous sheet thus layered is plated at a high current density by forcibly applying plating liquid to the layered sheet in a direction substantially perpendicular thereto in a plating tank, or by vacuum evaporation while the layered sheet is being transported inside the vapor deposition vacuum container enclosed by a cooking tank through a cooling roller mounted therein. The metallic porous sheet formed according the above-described method is preferably used as the electrode of a battery.

Abstract: A pressure sensitive adhesive tape comprising a tape substrate having at least a portion of one or more sides coated with a silicone pressure sensitive adhesive is constructed using an adhesive which cures to a permanent adhesive. The adhesive is covered on the outer side with a release film, preferably coated with a fluorosilicone release layer, to allow storage of the tape. Preferably the curable silicone pressure sensitive adhesive is cured upon exposure to moisture, the tape therefore being stored in the absence of moisture. A silicone elastomeric structural glazing tape is made by using a silicone elastomer as the tape substrate. The tape can be used to bond glazing panels to building components without the use of other means of fastening.

Abstract: The present invention relates to a process for making a hexagonal-cell honeycomb core from a honeycomb half-cell structure. The structure has a plurality of peaks and valleys on each side thereof and a diagonal surface between each consecutive peak and valley. The process comprises the steps of applying a first adhesive component, which is preferably a cyanate ester and an epoxy, to a first group of peaks and applying a second adhesive component, which is preferably the epoxy and a catalyst, to a second group of peaks. The structure is then stacked so that the first adhesive component on the first group of peaks comes into contact with the second adhesive component on the second group of peaks, thereby mixing the components to bond the half-cell structure together and form the honeycomb core.

Abstract: Two plastic cover sheets, each of which would produce warping upon lamination by heat and pressure, are loosely affixed to a presentation folder paper core sheet to provide a plastic envelope. Graphic indicia bearing insert sheets can be laminated between both sides of the core sheet and the plastic cover sheets to provide an attractive display of the graphic indicia. Manufacturing costs are saved since anti-warpage backing sheets need not be face laminated to substantial areas of the folder sheet. Also, the plastic envelope sold to the user before lamination is not bowed in contrast to the prior art envelope. A security folder which is difficult to compromise, using carbonless paper, is also disclosed.

Abstract: A temporary sign panel is made by placing sheets of used newspaper on a flat surface to form a first layer, fixing two edges of the first layer to the surface, and covering the layer with a flour and water paste. A second layer of newspaper is placed on the first, with the sheets staggered so lines between sheets do not coincide. Two edges of the second layer are fixed to the surface, and the second layer is covered with flour and water paste. Next, a third layer of newspaper is placed over the second, staggered so no lines between sheets coincide. The paste is allowed to dry, then the panel is removed from the surface, and the entire panel is painted with an exterior grade of house paint. The resulting panel can be painted with the desired sign, and the panel is stiff enough for normal display.

Abstract: A coated article comprises an outer, coated metal veneer coated with at least one coating selected from primer coatings, pigmented topcoat coatings, pigmented basecoat coatings and outer clear topcoat coating, the coated metal veneer being affixed to an underlying substrate having substantially the same shape as the coated veneer.The coated articles are particularly useful as body parts such as doors, hoods, trunk and roof panels, fenders, and rocker panels of automobile and truck bodies.A method of manufacturing the coated articles is also disclosed.

Abstract: A method for preparing a copper-clad laminated board for a printed circuit board which comprises: (a) preparing a prepreg by permeating a thermosetting resin into a fabric and then drying the resulting material to a half-hardened state, (b) laminating a both-side roughened copper foil on both sides or one side of the prepreg or a plurality of prepregs bonded together, (c) placing the resulting laminate from step (b) between both press plates of a press machine, (d) placing a polyamide film having a melting point equal to or higher than 170.degree. C. between the exposed side of the both-side roughened copper foil of the laminate and a press plate, (e) pressing the laminate with the press plates of the press machine at a temperature of 170.degree. C. or higher, a pressure of 10 kgf/cm.sup.2 or higher for a time of 60 minutes or longer, (f) separating the laminate from the press machine and (g) peeling the polyamide film from the laminate to obtain the copper-clad laminated board.

Abstract: A method for bonding together liquid crystal cells using a transparent grease. The grease maintains a level of viscosity appropriate for physically bonding the cells while matching the indices of refraction of the cells or cell layers for proper optical coupling.

Abstract: A method is disclosed whereby water is used to transfer labels onto containers in automatic high-speed labeling machines thereby leaving no glue residue on a container's surface, and making them amenable for recycling. The method further provides for adjustment of water's surface tension if necessary by surfactants to cause wettability of a variety of surfaces undergoing labeling, but said label is permanently attached to the container by friction, rather than by glue, after evaporation of the water.

Abstract: A fiber reinforced composite composed of a scrim/mat. The scrim/mat includes a layer of fiber scrim to which is bonded a layer of fiber mat. This product can be formed into a tubular member such as a fuse tube. The tube is made by pultruding the scrim/mat.

Abstract: A method and system for controlling the transmission of radio frequency energy through an imperforate multi-layer fiber and resin composite structure. Multiple segments of conductive mesh are embedded between layers of fiber and resin in at least partially overlapping positions. Apertures within the conductive mesh are limited to diameters substantially smaller than the wavelengths of the radio frequency energy utilized; however, the apertures are large enough to permit resin to flow into those apertures during the cure process, thereby limiting the possibility of delamination during loading of the resultant composite structure. By utilizing nonconductive materials, such as glass fibers and a resin material having an appropriate dielectric constant, it is possible to create a radio frequency energy guide or capacitive structure which permits the controlled transmission of radio frequency energy through an imperforate composite structure.

Abstract: A method of fabricating free-standing thin films of polyimide by casting a polyamic acid solution onto a substrate that is free of parting agents and release agents is disclosed. The polyamic acid film is imidized on the substrate. The thickness of the polyimide film can range from about 200 .ANG. to about five microns. A frame is adhered to the polyimide film while the film still attached to the substrate, and the frame, film, and substrate assembly is immersed in an aqueous based liquid bath for several hours wherein the liquid bath is free of reactive chemical agents. The liquid bath is heated, preferably, to a temperature within the range 30.degree. to 100.degree. C. The liquid is prevented from contacting the polyimide film within the interior region of the frame. Next, the assembly is removed from the water bath. The film is scored around the outside edge of the frame with a cutting tool; this cutting step may be performed either prior to, during, or after the immersion step.

Abstract: Heat-vulcanizable adhesives for the bonding of solids, the adhesive contains polybutadiene or a polybutadiene mixture and/or copolymers of butadiene with ethylenically unsaturated monomers and other vulcanizable components, and at least 0.5% by weight (based on the weight of vulcanizable components) of a metal salt as a hardening catalyst. The adhesive is particularly useful in vehicle assembly. The adhesive in less than 5 hours exposure to air forms a protective skin which imparts washer resistance to the adhesive.