Abstract: A foaming composition can be provided which is a fluororesin composition comprising a fluororesin and an electrical insulating whisker and which is foamed by being mixed with a foaming agent to reduce a diameter of cells. Thus, the diameter of cells of the foam obtained by foaming can be reduced. Further, a coaxial insulated cable can be provided in which an insulator layer made of this foam is arranged around a central conductor.

Abstract: A foaming composition can be provided which is a fluororesin composition comprising a fluororesin and an electrical insulating whisker and which is foamed by being mixed with a foaming agent to reduce a diameter of cells. Thus, the diameter of cells of the foam obtained by foaming can be reduced. Further, a coaxial insulated cable can be provided in which an insulator layer made of this foam is arranged around a central conductor.

Abstract: Flat cables having an external diameter of coaxial cables of 0.15 to 0.35 ?m, at least a portion of the outer circumference of each coaxial cable fastened to a laminated sheet composed of a porous polytetrafluoroethylene. The flat cables are constructed so that these flat cables can pass via a through-hole with an internal diameter of 2.0 to 5.5 mm.

Abstract: A roll cover of the invention has at least first and second layers, the first layer is formed of a thermoplastic fluoropolymer without including a hydroxyl group, and the second layer is formed of a thermoplastic fluoropolymer including a hydroxyl group, an outer circumferential face (first layer) of the roll cover has a nonsticky property, and an inner circumferential face (second layer) of the roll cover can be adhered to a roll body with sufficient adhesion strength without performing dangerous and complicated chemical inside treatment, and a roll cover excellent in adhesion stability with time can be given. As a result, the chemical inside treatment is unnecessary in a manufacturing process of the roll cover, consequently productivity of the roll cover can be significantly improved.

Abstract: In a flat-shaped cable in which many conductors or transmission lines arranged side by side are covered with and held between insulators or sheaths, the insulators or the sheaths are made of non-sintered or semi-sintered polytetrafluoroethylene, and are sintered and joined at web portions where the insulators or the sheaths are connected through the conductors or the transmission lines, and therefore, even if it is formed by using a PTFE sheet or an EPTFE sheet as an insulator or a sheath of the flat-shaped cable such as a flat cable, the flat-shaped cable can be made to have excellent bendability, flexibility or pliability, as well as excellent slidability.

Abstract: A photocatalyst carrier is described, characterized in that the surface and/or pores of a hot-melt resin porous article is/are coated with a photocatalytic substance, and the system is heated to the softening temperature of the hot-melt resin to allow the photocatalytic substance to penetrate to some extent into the surface and/or pores of the hot-melt resin porous article, providing sufficient exposure to the surrounding atmosphere for the surface of the photocatalytic substance and supporting the substance on the hot-melt resin porous article with adequate bonding force.

Abstract: A layered composite material for filtration having a filter layer, a buffer layer, and a support, layer. The buffer layer is a material more compressible and extensible than the support layer and imparts strength and durability to the composite material.

Abstract: A probe card is electrically connected to a tester, electrically contacted and connected to circuits to be tested, and used to transmit test signals between the tester and the circuits. It includes a plate assembly having a printed board and an earth plate insulated from each other. Probe assemblies are supported by the plate assembly and are substantially vertically contacted at their foremost ends with pads of the circuits to be tested. Each probe assembly includes a center conductor having a sharpened tip contacted with the pad of the circuit to be tested. A holder conductor shrouds the center conductor while leaving the front end portion thereof not enclosed, and having electrical continuity with the center conductor. A dielectric shrouds the holder conductor, a peripheral conductor coaxially arranged around the holder conductor with the dielectric interposed between them, and a sheath enclosing the peripheral conductor.

Abstract: A shielded coaxial electrical cable for transmission of electrical signals in which very fine wires or light-weight foils are used as shielding materials. The shielding materials are held in place by an adhesive to prevent dislodgement or misalignment of the shielding materials by forces exerted upon them during subsequent manufacturing steps.

Abstract: A light-weight, but strong and cut-through resistant electrical insulation tape, which is a laminate of porous polytetrafluoroethylene and polyetheretherketone. Also described are insulated wires and coaxial cables using the electrical insulation tape.

Abstract: A waterproof and water-vapor-permeable composite laminated material that has good snag resistance and puncture resistance is described. The material is suitable for making outdoor apparel for wear in rugged environments, for example, where brambles, briers or dense underbrush are likely to be encountered.

Abstract: An improved stripline cable is provided wherein porous, expanded polytetrafluoroethylene having continuous openings therethrough is disposed between sets of substantially parallel electrical conductors and having a covering on both sides thereof holding the conductors in place. The covering is preferably of a fluororesin. Each set of conductors can be a signal conductor having a smaller cross-sectional area, i.e. small width or diameter, and a ground conductor having a larger cross-sectional area. The cable as aforesaid can also have an electromagnetic shielding material laminated to the outer sides of the covering.

Abstract: The invention relates to a liquid dispensing apparatus which includes a detecting element for detecting the liquid from the vaporized gas surrounding the remaining liquid in a storage tank to be supplied, where the detecting element is disposed at the output end of a liquid supply line, and a discriminator for discriminating the signals and information obtained from such a detecting element. The discriminator generates a lock signal to be fed to a locking means for allowing suspension of the supply of liquid based on a signal generated in the discriminator and fed to the locking means. The detection element includes a first electrode, a second electrode, a gas-sensing member connected to the first electrode and connected to the second electrode, which gas-sensing member is formed of a resin material including a conducting material which furnishes an impedance change upon contacting the vaporized gas of the liquid to be detected.

Abstract: An insulating material formed from a network of hollow gas-filled microspheres embedded in a cured three-dimensional cross-linked polymer network of copolymerized unsaturated fluorinated monomers and acrylic monomers reacted in a fluorinated organic solvent.

Abstract: A process for applying deodorant particles to a membrane used for clothing in which the particles are applied from a liquid coating material that penetrates into the pores of the membrane, thus resulting in a higher concentration of particles in the surface coating than in the liquid coating material.

Abstract: A multilayer circuit board is provided having an inner porous fluororesin layer containing electrical circuits, a ground conductor layer located adjacent the fluororesin layer on one side thereof and a power supply conductor layer located adjacent the fluororesin layer on the other side thereof, and a reinforcing, solid plastic dielectric layer adjacent each conductor layer and being external to the inner fluororesin layer. In an alternate embodiment, the multilayer circuit board may have a plurality of inner porous fluororesin layers, at least one fluororesin layer containing electrical circuits, and may have ground conductors and power supply conductors adjacent each fluororesin layer, and reinforcing, solid plastic dielectric layers on the outermost surfaces of the circuit board assembly. The ground and power supply conductor layers extend over the entire surfaces, respectively, of the inner fluororesin layers.

Abstract: A tube comprises a wall formed from thermoplastic material. The wall is provided with an X-ray opaque agent comprised of a white bismuth compound mixture of bismuth oxide and a white bismuth salt such as bismuth nitrate and bismuth sulfate, the bismuth compound mixture having a bismuth content of 83 to 88% by weight.

Abstract: A branching connector for connecting a shielded bus cable with shielded branching cables by IDC connectors, the cables containing a multiplicity of insulated wires within each shield.

Abstract: Liquid leakage detection apparatus is provided comprising: (a) a long detecting component wherein there are the following components bundled together: (i) a first conductor having a leading end and a trailing end, the first conductor covered by insulation, (ii) a second bare conductor having a leading end and a trailing end, the second conductor positioned parallel to the first conductor, the trailing end of the second conductor being connected with the trailing end of the first conductor, and (iii) a third conductor covered by a porous insulation and positioned parallel to the second conductor, (b) the leading end of the first conductor and the leading end of the second conductor being connected by the detecting means which detects and indicates a potential difference between the first and second conductors; (c) the leading ends of the first and second conductors also being connected, respectively, to one of the electrodes of a power supply, each through respective, known resistances; and (d) the third condu

Abstract: A ceramic wire superconducting cable is provided having porous expanded polytetrafluoroethylene insulation, a superconductive ceramic tape "conducting" layer having openings at prescribed intervals and a high strength polytetrafluoroethylene fiber protective layer. The components covering the cable are porous permitting liquid nitrogen to permeate and directly contact with the superconductive cable.