Abstract: A transparent polymeric container, such as a dual in line or slide tube, for the storage, transportation or handling of static sensitive semi-conductive microchips or electronic devices, which tube comprises: a dual in line polymeric transparent tube for the storage or transportation of static sensitive microchips or integrated circuits, which tube has been treated with an electrically conductive surface coating composition composed of a film-forming polymer and a quaternary ammonium compound as an antistatic agent to provide a surface electrical resistance of the treated tube of about 10.sup.8 ohm/sq. inch or less.

Abstract: A method of producing electrically conductive fibers by treating acrylic fibers, acrylic-series fibers, or nylons in a heated bath which contains copper (II) sulfide and an acid. The copper (II) sulfide is adsorbed into the fibers in the presence of the heated acid to improve electrical conductivity of the fibers.

Abstract: The invention pertains to a laminate having greater optical transparency, while remaining flexible. The laminate is most useful in fabricating envelopes or packages for electronic components featuring EMI and RFI shielding an electrostatic dissipation. The laminate comprises outer layers of an electrostatic free plastic and a middle layer of conductive fibers in a low density mat of between 0.2 and 0.5 ounces per square yard.

Abstract: The invention features a single film construction with two distinctly different surface characteristics for the purpose of an electronic package composite. The non-abrading outside conductive layer integrally bonded to an anti-static interior layer forms a faraday cage package characterized by surface resistivities of less than 10.sup.3 ohms per square on the outside and less than 10.sup.12 ohms per square on the inside.

Abstract: An extrusion drawn elongated thread-like filament comprising a minor proportion of elongated metal fibers embedded in a major proportion of thermoplastic polymer wherein the melting temperature of said metal is within the softening to molten range of said polymer and wherein said metal fiber is unidirectional and extends into the elongated length of said polymer.

Abstract: Organic polymeric plastic substrates of optical elements are made anti-static and abrasion-resistant by: applying a conductive layer to at least one surface of the plastic substrate; and overcoating the conductive layer with an abrasion-resistant layer.

Abstract: This invention relates to suppressing or avoiding the effects of static electricity otherwise accumulated on or in textile goods dried in a tumble drier of the type commonly used in home and commercial laundries and in certain textile finishing processes by including with a batch of goods undergoing drying a re-usable textile fabric having particular qualities. The static dissipating textile fabric contemplated by this invention may be re-used indefinitely while continuing to accomplish the suppression of the undesired effects.

Abstract: An antistatic resin composition which is the electron radiation cured reaction product of an electron radiation curable prepolymer and an electron radiation reactive antistatic agent soluble in the prepolymer. An antistatic laminate is made by applying a mixture of the prepolymer and antistatic agent to a substrate and then contacting the mixture with electron radiation.

Abstract: A method for preparing stampable composites of polymer of olefin and fiber mat composites which are a mixture of glass fiber and carbon fiber by surrounding a fiber mat of a mixture of glass fiber and carbon fiber with a matrix of polymer of olefin. A stampable composite of polymer of olefin and fiber mat produced by such a method.

Abstract: A glass unit having at least a pair of glass panes spaced from and on opposite sides of an electrically conductive transparent film in a taut condition. The glass panes are separated by a pair of spacer tubes between which the outer peripheral margin of the plastic film extends. A sealant covers the outer peripheries of the spacer tubes and spans the distance between the outer peripheries of the panes. An electrical lead electrically connected directly or through a wire cloth to the film couples the film to electrical ground. The glass unit is transparent to electromagnetic radiation in the 400 to 700 nm range but opaque to electromagnetic radiation in the range of 10.sup.10 to 10.sup.4 nm.

Abstract: The process for the manufacture of a wool fabric to be used as a mattress cover comprises four steps in succession, that is a loosening step, a shearing step, a moistening step and a pressing step, and further trimming steps for applying elements of electrically conductive material to said fabric as well as at least a shunt for grounding the same elements.The wool fabric 16 thus obtained comprises wool yarns having a substantially reduced length and sticking fast to the weft of the fabric itself, as well as elements 104, 106 of electrically conductive material and at least a shunt 108 for grounding the elements 104, 106 and adapted to allow the electrostatic energy to be discharged from a sleeping person.

Abstract: A transparent static reducing mat has a transparent plastic substrate. A number of thin conducting essentially invisible fibers are on the substrate in a static-charge-draining conducting layer and are covered by a transparent partially conductive layer of plastic material contacting the conducting layer of thickness much less than the thickness of the transparent substrate.

Abstract: A woven, drapable, formable graphite fabric (10) comprising essentially graphite warp multifilament elements (11) and fill multifilament elements (12), wherein an electrically conductive filament (13) is wrapped around or intertwined with the warp elements (11) and fill elements (12) prior to weaving the elements into a fabric. The conductive filament (13) has an electrical conductivity greater than the conductivity of graphite, the conductive filament (13) typically being a metallic material such as aluminum.

Abstract: A dust-proof fabric having an excellent dust-collecting efficiency and dust-preventing property including a plurality of filament yarns having a thickness of 20 to 400 denier and consisting of a plurality of individual filaments having a denier of 3.5 or less. The fabric has a number of pores formed therein and exhibits an air permeability of 0.3 to 10 ml/cm.sup.2 /sec. In the fabric, the proportion of the integrated volume of pores having a size of 43 .mu.m or more to the entire integrated volume of all the pores in the fabric is 40% or less.

Abstract: The provision of non-volatile, electrically conductive organic coatings to the surfaces of cassettes housing magnetic recording tape substantially reduces triboelectric charging.

Abstract: A method of forming an electrically conductive weavable multifilament graphite element which comprises wrapping around a multifilament graphite element at least one electrically conductive filament.

Abstract: A material for clothes is disclosed which is formed of a base cloth and a porous film having a number of very fine pores and coated on at least one surface of the base cloth. In this case, the pores are made to have a diameter about 0.1 to 5 .mu.m and the material has the percentage of dust permeation less than 50% for the dust with size larger than 0.3 .mu.m and moisture permeability more than 2500 g/m.sup.2 /24 hrs.

Abstract: Disclosed is a method of making a supported antistatic yarn and products resulting therefrom. The method involves merging a support yarn into contact with a filamentary polymer substrate immediately after the filamentary substrate has had a mix applied thereto. The support yarn is solvent bonded to the polymer substrate due to the characteristics of the mix.

Abstract: A body of polymeric material, comprising a core--e.g. of foam plastic--surrounded by a skin of greater density, includes a filler of metallic or other electrically conductive particles distributed throughout the core or at least in an intermediate layer separating an inner part of the core from the skin. The filler particles, preferably consisting of iron or aluminum, are injected together with all or part of the core material during the molding of the body.

Abstract: A fiberglass fabric wherein a selected number and pattern of yarns have been coated with an aluminum coating is preimpregnated with epoxy or other resin system and laid up as an integral part of a composite structure of the type having a honeycomb core and a plurality of fiberglass plies. Multiple plies of fiberglass fabric which include the yarns coated with an aluminum coating may be utilized in edgeband fastener areas for increased electrical continuity without loss of mechanical strength of composite parts.

Abstract: An antistatic sheet or bag for electrostatic sensitive devices is obtained by uniformly mixing a thermoplastic polymer such as polyethylene with about 0.1 to 0.7 per cent by weight of an antistat, extruding the mixture in the form of a tubular sheet, subjecting the sheet to a corona discharge, printing on the sheet or both sides of a tube forming said sheet, with a carbon conducting ink, cutting the sheet into units of desired length and sealing the end of each such cut unit to form a bag.

Abstract: The invention contemplates flexible sheet material having static-dissipative properties and adaptable to wrapping or otherwise containing electronic components or the like which are to be protected against damaging exposure to an electrostatic charge. The sheet material is basically of relatively high surface resistance and is static-dissipative by reason of printed application of a matrix design, using electrically conductive ink, such that at least first and second intersecting sets of spaced plural conductive paths are established at the printed surface. The material is non-sparking by reason of the printed conductive ink being disposed between layers of relatively high surface resistance.

Abstract: A pouch for protecting electrosensitive components contained therein from physical shock and electrostatic damage during handling and storage. In one embodiment, the pouch comprises two composite panels, each comprising a sheet of conductive material as the outside layer, a sheet of electrostatic-free material as the inside layer and a layer of open cell cushioning material sandwiched therebetween. Each panel is sealed to enclose the material therein and both panels are then sealed together on both sides and one end. The open end has an interlocking closure to allow components to be inserted into the pouch and for the pouch to be thereafter closed.In another embodiment, the pouch is formed of a pair of extruded, tubular members respectively constituting the conductive material layer and the electrostatic-free material layer with sheets of cushioning material sandwiched between them. The assembly is sealed at one end and provided with a releasable closure member at the other end.

Abstract: A static-dissipating laminate is made, containing at least a bottom core layer and a top decorative layer, both layers containing fibrous material which is impregnated with a resin, where at least the decorative layer has a metal salt distributed through it in an amount effective to provide an antistatic effect to the laminate, so that static charges accumulating on the top of the decorative layer are dissipated.

Abstract: A magnetic recording medium comprising a support having coated thereon a magnetic layer and a leader tape connected to at least one end of the support and the magnetic layer, the leader tape comprising a support having coated thereon a cleaning layer containing an organic high molecular weight powder and a binder, and an antistatic layer being provided on at least one surface of the leader tape.

Abstract: A pouch for protecting electrosensitive components contained therein from physical shock and electrostatic damage during handling and storage. In one embodiment, the pouch comprises two composite panels, each comprising a sheet of conductive material as the outside layer, a sheet of electrostatic-free material as the inside layer and a layer of open cell cushioning material sandwiched therebetween. Each panel is sealed to enclose the material therein and both panels are then sealed together on both sides and one end. The open end has an interlocking closure to allow components to be inserted into the pouch and for the pouch to be thereafter closed.In another embodiment, the pouch is formed of a pair of extruded, tubular members respectively constituting the conductive material layer and the electrostatic-free material layer with sheets of cushioning material sandwiched between them. The assembly is sealed at one end and provided with a releasable closure member at the other end.

Abstract: This invention describes a transparent chair mat having anti-static qualities. The chair mat is substantially transparent thereby permitting the carpet thereunder to be readily seen. The chair mat can be gounded or not, as desired. This anti-static chair mat enables castered chairs to roll over it without the person sitting in the chair generating excess static-electricity.

Abstract: A composite material comprising a polymer matrix containing metallized sheet-form textiles and/or metallized particles, and in addition additives for increasing the ohmic, electrical and/or magnetic losses which are uniformly present in the polymer and/or on the sheet-form textiles and/or particles, has a high shielding effect against electromagnetic radiation both in the short-range field and also in the long-range field over a wide frequency range.

Abstract: A support net is covered on each side with a carrier web having an external metal IR-reflecting coating and superposed thereon a protective coating which is substantially transparent to infrared radiation. The metal coatings and the protective coatings are thin enough to be substantially permeable to water vapor. The support net carries the load and allows water vapor to pass through because of its open net-like structure.

Abstract: A table or platform with an improved conductive top adapted for use particularly with small electronic parts. The table or platform includes a normally horizontal top surface. An improvement in one form of the invention is provided by way of stretching a metal screen or mesh material across the top and then filling the mesh with a layer of resin. The resin is ground or sanded off to expose the mesh to provide the conductive top. The conductive top is grounded. Appropriate grounding means are provided to accommodate the grounding. In a second form of the invention the conductive top is provided by way of embedment of metal particles in a plastic layer so as to make the layer conductive. Preferably the table or platform is fabricated by an improved method embodying the placement of plural layers of resin embedding the wire mesh material, screeding, sanding, and polishing to provide a smooth surface wherein the metal of the mesh is exposed.

Abstract: A graphite fiber reinforced laminate structure capable of withstanding the damaging effects of lightning strikes, comprising at least one graphite fiber bonded ply having metal wire or metal coated filament woven therein in the warp and fill directions, said metal wire or filament being compatible with said bonded graphite fibers.

Abstract: Woven, non-woven and knitted fabrics containing at least 1% by weight of specialty fibers formed from high molecular weight polymers of alpha, beta-ethylenically unsaturated aliphatic carboxylic acids, alpha, beta-ethylenically unsaturated aliphatic sulfonic acids and the hydroxyalkyl esters and glycidyl esters of these acids which are cross-linked at a cross-linking density of from about 1 cross-linkage per from about 40 to about 100 repeating monomeric units of the homopolymer are capable of absorbing up to about 40% by weight of the moisture without loss of mechanical strength and other textile properties. These fabrics have anti-static properties. Sheer fabrics are useful for stockings, panty hose, underwear and the like.

Abstract: The present invention relates to thermoplastic films such as polypropylene and more particularly to bi-axially oriented polypropylene which are characterized by having excellent anti-static properties and good resistance to the transmission of oxygen and moisture vapor. These properties are achieved by the application of a thin primer layer containing poly (ethylenimine) to corona discharge treated oriented polypropylene film followed by the application of an aqueous dispersion of a vinylidene chloride multipolymer containing a water soluble polyol such as a low molecular weight glycol or a poly (ethylene oxide) adduct of a nonpolar molecule.

Abstract: An anti-static package composed of a multiply flexible film. The inner ply is an anti-static material and the outer ply is an electrically insulating material. A conductive metallic ply is sandwiched between the inner and outer ply. The conductive material is sputtered onto one of the two plies and the other ply is bonded by an adhesive bond to the metal ply.

Abstract: A dryer felt or fabric with a reduced potential for creating static electricity when running on a papermaking machine. The fabric is woven from a number of machine direction and cross-machine direction yarns with selected machine direction and/or cross-machine direction yarns comprising a blend of anti-static yarn combined with other yarns. The anti-static yarn may take the form of a staple, continuous filament or monofilament and may be a carbon content acrylic anti-static fiber, a silver coated nylon continuous filament, a nylon monofilament coated with carbon, or an acrylic fiber carbon coated. After being woven, the fabric is typically resin treated with a heat-resistant resin.

Abstract: An antistatic composition useful to reduce the propensity of multilayer elements to accumulate static electrical charge comprises an aqueous dispersion of (a) a film-forming binder; (b) a hardener for the binder; (c) a substantially transparent matting agent having particles with a diameter in the range of from about 1 to about 50 microns and a specific gravity substantially the same as that of water; (d) a highly electrically conductive, noncrystallizable conductivity agent; and (e) a charge control agent. This antistatic composition is especially useful as an image-receiving layer on substantially transparent image-receiving elements. Such image-receiving elements can be formed into projection-viewable transparencies by an electrographic copy process, which transparencies are considerably less likely to stick to one another or jam in electrographic copier/duplicator equipment than currently available transparencies.

Abstract: The invention contemplates a multi-layer electrically conductive web for safely and quickly discharging personnel-accumulated static electricity, and suitable as an upholstery material. The web comprises an upper continuous polymeric layer of relatively low conductivity, in the order of 10.sup.8 ohms per square, bonded to an underlying continuous polymeric layer of much greater conductivity, in the order of 10.sup.2 ohms per square, and provision is made for electrically grounding the underlying layer, illustratively by casting to the intermediate layer a continuous bottom layer of expanded polymeric material of relatively low conductivity. In the preferred embodiment, a fabric base is laminated to the bottom layer of the web.

Abstract: The sheet material for packaging electronic parts consists of a laminated material which comprises a transparent plastic film layer and a thin metal film layer having a light transmittance of at least 25% and an electric resistance of less than 10.sup.8 ohms/cm.sup.2. The sheet material is heat-sealable at the surface of said metal film layer. An envelope for packaging electronic parts is made of the sheet material by heat-sealing in a state of disposing the plastic film layer outside.

Abstract: A carpet has an upper carpet layer and a lower backing layer of latex high density foam rubber secured to an undersurface of the carpet layer. The backing layer has a bottom surface substantially covered by a fluorocarbon compound bonded to the backing layer and reducing the tendency of the backing to stick to a floor on which the carpet is laid.

Abstract: A novel solderless connection between a bus bar and an array of electroconductive wires avoids cracks in plastic window elements, particularly the outer component of curved lightweight heated windows, particularly those used in aircraft.

Abstract: The invention contemplates a multi-layer electrically conductive web or mat for safely and quickly discharging personnel-accumulated static electricity. An upper continuous polymeric layer of relatively low conductivity, in the order of 10.sup.8 ohms per square, is bonded to an underlying continuous polymeric layer of much greater conductivity, in the order of 10.sup.2 ohms per square, and provision is made for electrically grounding the underlying layer, illustratively by casting to the intermediate layer a continuous bottom layer of expanded polymeric material of relatively low conductivity.

Abstract: A fibrous web containing activated carbon is rendered flame retardant without substantially reducing its adsorption efficiency by treating the carbon containing web with about 5-20% by weight of a basic ammonium phosphate.

Abstract: A method of stacking metal sheet materials which is characterized by interposing between each adjacent metal sheet material an interleaf comprising paper with plastic coated on only one side.

Abstract: A dielectric film is provided with a metallic back layer for use as the outer layer in a multi layer "thermal blanket" employed as part of the temperature control system for a spacecraft. The dielectric film is repeatedly punctured from the metallized side in order to produce a plurality of small holes, which collect a disproportionately large current from the plasma and adjacent charged surface. The rough edges of these holes also act to initiate frequent, small, field emissions, thereby preventing large surface potentials from building up in the presence of a "hot" space plasma or electron beam environment.

Abstract: A tufted product comprising a primary backing material having pile yarn projecting through its top surface and including an electrically conductive metal foil, the pile yarn being tufted through the primary backing fabric including the electrically conductive foil so that the yarn is in direct contact with the foil so as to render the product antistatic.

Abstract: An antistatic construction including a base member, a first electrically nonconductive layer on the base member, and an electrically conductive layer on the first electrically nonconductive layer. A second electrically nonconductive layer may be provided on the electrically conductive layer. A plurality of electrically nonconductive elements embedded within at least one of said layers. Portions of the electrically conductive layer adjacent to the electrically nonconductive elements being exposed. At least one electrically grounded electrical conductor operatively associated with the electrically conductive layer.The method of creating an antistatic construction.

Abstract: Static-dissipating fabric constructions especially suitable as upholstery material comprise a dielectric wear surface, which is a durable film or sheet of polymeric material such as polyvinyl chloride or polyurethane, and a conductive substratum securely bonded to the underside of the wear surface. The substratum has a surface resistance of 10.sup.9 ohms/square or less.

Abstract: Shaped objects including synthetic polymeric fibers with improved antistatic properties are prepared by incorporation therein about 1 to about 15% of a polyester antistatic agent prepared by reacting an N,N-bis(hydroxyalkyl) taurine salt with an organic polycarboxylic acid. Incorporation of the polyester into a synthetic polymer is accomplished by the process of preparing a melt or solution of the synthetic polymer and the polyester and extruding from the melt or casting from the solution to provide films, fibers and other molded objects exhibiting antistatic properties. A process for the preparation of the polyester antistatic agents of the invention, and for the preparation of the N,N -bis(hydroxyalkyl) taurine salts is also disclosed.

Abstract: A coating composition useful in forming conductive layers comprises a latex having water as a continuous phase and, as a dispersed phase, hydrophobic polymer particles having associated therewith a polyaniline salt semiconductor. The coating composition can be coated on a variety of supports to produce conductive elements. The coating compositions are particularly useful in forming antistatic layers for photographic elements or conducting layers for electrophotographic and electrographic elements. Also disclosed is a preferred process for preparing a latex coating composition comprising the steps of loading polymer particles with the polyaniline component of the polyaniline acid addition salt semiconductor and then acidifying the latex to form a polyaniline salt coating composition.

Abstract: A non-arcing modular dielectric array having an electrically conductive substrate mounting a multiplicity of spaced dielectric elements, such as second surface mirrors or solar cells, with outer dielctric surfaces spaced and electrically isolated from the substrate which tend to accumulate electrical charges in a plasma environment creating between the substrate and element surfaces large potential differences which induce arc discharges between the surfaces and substrate. The gaps between adjacent dielectric elements are filled with a resilient filler which provides about the individual elements conductive frames grounded to the substrate for bleeding charges from the element surfaces to the substrate to suppress arc discharges therebetween.