Abstract: High capacitance laminates made of thin films of polytetrafluoroethylene filled with large amounts of dielectric filler, in which the films are plated or clad with conductive material.

Abstract: An electrical cable of conductive wire having an insulating layer of expanded, microporous sintered polytetrafluoroethylene around it, followed by a coating of a vinylidene fluoride-hexafluoropropylene copolymer surrounding the insulating layer, and an outer coating of polyvinylidene fluoride.

Abstract: A retractable coiled cable having a retractable member imbedded in the jacket of the coiled cable so as to utilize space between adjacent coil turns of the coiled cable, allowing the adjacent coil turns of the coiled cable to fit together with no increase in diameter over that of a coiled cable having no retractable member.

Abstract: A filled PTFE film is prepared by compressing an expanded, porous PTFE film that contains filler material. The films have high strength with substantially few pinholes.

Abstract: A foam-breaking device comprising a heating element enclosed in a synthetic resin membrane.

Abstract: An expanded porous polytetrafluoroethylene (PTFE) membrane is employed in laminar conjunction with an polytetrafluoroethylene felt; in which the felt is reinforced with a woven scrim.

Abstract: A cable collet connector for use in terminating the shield conductor of coaxial cables that is quickly and easily fitted to a coaxial cable and provides a secure mechanical and electrical connection.

Abstract: An electrical cable of conductive wire having an insulating layer of expanded, microporous sintered polytetrafluoroethylene around it, followed by a coating of a polyesterpolyurethane surrounding the insulating layer, and an outer film of thermoplastic polyester elastomer surrounding the coating.

Abstract: A coaxial electric cable having a significant reduction in weight for equivalent electrical properties provided by wide spacing of braided or served shielding wires under metal foil, metal-laminated, or conductive tape shielding in a porous expanded polytetrafluoroethylene-insulated cable.

Abstract: Polyurethane/expanded porous polytetrafluoroethylene composite coatings show unexpectedly high resistance to ionizing radiation when they contain a hindered phenol.

Abstract: A coated product is provided that is comprised of a substrate and a coating comprised of a microporous scaffold material having a high void volume and open, interconnecting void microstructure, the scaffold material having a layer of a selected polyurethane thereon which extends in the voids. The coated product has good barrier properties with respect to bacteria, viruses, and air-borne particulate.

Abstract: A device according to the invention for testing articles of clothing has a carrier on which the article of clothing to be tested can be placed and then sprayed with water. The carrier is an imitation human body or part of a body with moisture sensors on it surface which are connected to an analyzer.

Abstract: The present invention concerns a culturing apparatus, the object of said invention being to provide an apparatus which allows an efficient oxygen supply to be achieved without damaging the cells, microorganisms or tissues that are to be cultured.

Abstract: An orthopedic drill guide device is described, its intended use being to locate and guide the drilling of holes in bone for the purpose of implanting tissue repair devices.

Abstract: A ribbon coaxial cable having precisely spaced conductors and drain wires separated by a dielectric spacer, conductor and spacer shielded together, and units jacketed to give cable having wires exactly positioned for termination.

Abstract: A high temperature and radiation resistant all polyimide insulated coaxial cable and process of manufacture. Perforated polyimide tape wrapping yields low dielectric constant cable.

Abstract: A laminate is provided that comprises flexible moisture permeable adherends and a moisture permeable adhesive. The laminate has good moisture transmitting characteristics with good bond strength. The laminate finds utility in functional applications such as shoes. A particular group of laminates are provided that provide for both waterproof characteristics and breathability.

Abstract: An electrical cable of conductive wire having an insulating layer of microporous polymeric material around it, followed by a coating of a polyesterpolyurethane surrounding the insulating layer, and an outer film of polyetherpolyurethane surrounding the coating.

Abstract: A method and apparatus for testing wearing apparel that defines an enclosure for moisture vapor transmission. Thin, flexible, waterproof liners which have a high permeability to moisture vapor are inserted into the interior of the apparel and filled with water. The water may be heated to simulate body temperatures and to produce higher concentrations of moisture vapor inside the apparel article. The amount of moisture transferred to the external environment of the apparel article, as well as the amount of moisture absorbed and condensed in the apparel article itself, can be measured by the weight differences which occur over a test period. The method is non-destructive and suitable for quality control, as well as for new product design.

Abstract: A microporous catalytic material and support prepared under a reducing atmosphere by pyrolysis of an interiorly metal-plated porous polymer to leave the residual microporous tubular-configured metal sheaths of the nodes, fibrils, or other surfaces within the interior of the resulting hollow structure.