Abstract: An electrically less chargeable wool-polyester suiting woven or knitted mostly from a non-electroconductive yarn and partly from an electroconductive yarn of the type containing a carbon-black-coated mono-filament fiber. The suiting comprises 0.1% to 0.6% of the mono-filament fiber for obtaining a necessary anti-electrostatic effect. The monofilament fiber in the electroconductive yarn is covered by wool and other fibers having an aggregate amount by weight more than its fivefold amount and an average single-fiber finess less than its one-fifth finess, so that it is prevented from appearing streaky on the surface of the suiting. The electroconductive yarn in the suiting is protected from interruption both in production and in use by the non-electroconductive yarn including polyester multi-filament fibers.

Abstract: An electrically conductive article comprises an insulating material, preferably polyurethane or a similar plastic material, with a plurality of thinly coated electrically conductive fibers dispersed randomly and uniformly therethrough. The fibers are thinly coated with a lubricating cohesive silicone oil or equivalent material which adheres to the fibers and repels the insulating material, thereby preventing encapsulation of the fibers and rendering the coated fibers mutually attractive to define conductive paths through the article even at extremely low fiber loadings.

Abstract: An electrically conductive web for safely and quickly discharging static electricity accumulated on personnel is disclosed. The web comprises a semi-conductive polymeric surface layer, which is in electrical contact with a conductive foraminous layer. The relative conductivity of these layers result in desirable electrical discharge characteristics. The composite structure may be bonded to a suitable supporting substrate and suitable electrical connection between the conductive foraminous layer is made with an electrical ground. Charged personnel coming into contact with the semi-conductive surface layer have their static charge quickly and safely discharged to ground potential.

Abstract: This invention concerns non-porous, polymeric articles having active properties, and methods for producing such articles. Plastic, rubber, or other natural and synthetic polymeric articles are provided with active chemical and/or physical properties, such as, antibacterial, antifungal, pesticidal, insecticidal, animal repellent, odorous, antistatic, electrically conductive or other properties or combinations of properties, by applying to a surface of the article selected active agents which are capable of migrating or moving throughout the body of the article to impart an effective level of activity throughout the article and/or on a surface other than the one to which the activating agents have been applied.

Abstract: An antistatic layer of a radiation-sensitive element, such as a photographic film or paper, is formed by coating and drying of an antistatic composition comprising an aqueous solution of an amorphous antistatic material, the aqueous solution having been produced by forming a melt comprised of at least 80% by weight of vanadium pentoxide and casting the melt into a solubilizing amount of water. In addition to vanadium pentoxide, the melt can contain a glass-forming compound, such as an alkaline metal phosphate or polyphosphate, as well as an oxide of an element that exists in at least two valence states, such as an oxide of molybdenum. The radiation-sensitive element preferably includes a protective overcoat layer covering the antistatic layer.

Abstract: An improved, conventionally-spoolable, magnetic tape which can be unspooled and read after exposure to very high temperatures. The improvement is largely in a thermally resistant, non-adhering, anti-static backing system, used in conjunction with magnetic face coatings.

Abstract: A flexible sheet material for forming an envelope used to enclose and protect electronic components from electrostatic charges during storage and shipment. The sheet material is sufficiently transparent to afford visual identification of an electronic component through the envelope, while including a polymeric sheet having a high volume resistivity to electrically isolate a component within the envelope, an antistatic material which is disposed at an inner surface of the envelope for dissipating and restricting electrostatic charges on components within the envelope, and a highly conductive layer which is then disposed on the outer surface of the polymeric sheet and provides a highly conductive outer surface on the envelope for grounding electrostatic charges brought into contact with the envelope.

Abstract: A flexible material for forming an envelope used to enclose and protect electronic components from electrostatic charges during storage and shipment. The material is sufficiently transparent to afford visual identification of an electronic component through the envelope, while including a sheet of polymeric material having a high volume resistivity to electrically isolate a component within the envelope, an antistatic material which is disposed at an inner surface of the envelope for dissipating and restricting electrostatic charges on components within the envelope, and a highly conductive layer which is then disposed on the outer surface of the polymeric sheet and provides a highly conductive outer surface on the envelope for grounding electrostatic charges brought into contact with the envelope.

Abstract: A vinylidene chloride copolymer coating composition containing small amounts of a polybasic acid of phosphorus, such as orthophosphoric acid, or sulfuric acid, in combination with a mono- or diglyceride. Organic polymeric films, such as polyester and regenerated cellulose films, coated therewith exhibit excellent antistatic properties. Such coated films can be run on various types of machinery without problems due to static build-up.

Abstract: A layered material for linings or coatings is made of a paste consisting principally of wood powder having a fineness similar to flour and vinylic glue, said paste being convertible into a foil by rolling cylinders, a press or other means.The layered material may be engraved, printed, painted or may withstand any finishing work as wood.To engrave or emboss the layered material an embossing belt or an embossing cylinder can be employed.To manufacture the embossing cylinder a method is disclosed in which even the model itself which has to be imitated can be used as matrix for the cylinder.

Abstract: Quaternary ammonium compounds are provided which are useful in the treatment of substrates such as plastic materials and textile materials, both woven and nonwoven, from natural and synthetic fibers and mixtures thereof, to impart antistatic properties.A process is also provided for the preparation of such compounds, and for the treatment of substrates with such compounds.

Abstract: A transformer having a forced air cooling system is disclosed. The transformer includes an insulating oil which is forcibly moved in the transformer and an insulating sheet which is partially covered with particles, fibers or other forms of an inorganic material for producing a static charge of opposite polarity to the charge produced by the base material of the insulating sheet caused by relative motion due to forced flow of the insulating oil.

Abstract: An article of manufacture is described which, in normal use, tends to accumulate a charge of electricity. Secured to the article is a substrate containing static electric dissipating elements having grid-like discontinuities. As such, it can be used in the manufacture of carpets. The normal propensity of such carpets to accumulate a charge of static electricity is thus greatly reduced.

Abstract: A transparent plastic window containing embedded therein a novel static electricity dissipating circuit (hereinafter referred to as an anti-static circuit), which may also contain a heating circuit insulated therefrom, and a method of producing such windows.

Abstract: Disclosed is a novel pressure sensitive adhesive drafting film which is specially formulated to permit it to be imaged in electrostatographic copiers. The film is a multilayered structure comprising layers from the top down of:(a) a matte coating capable of receiving and holding graphic information;(b) a layer of organic resinous material in film form;(c) a layer of pressure sensitive adhesive;(d) a release coating;(e) a layer of an organic resinous material in film form as release liner; and(f) a back coating which is a layer of an organic resinous binder material having dispersed therein:I. a particulate solid material of particle size ranging from 3 to 20 microns in the longest dimension, andIi. a water insoluble antistatic agent of a type to cause the film to have a surface resistivity in the range of from 10.sup.9 to 10.sup.14 ohms/sq.

Abstract: Clear, stable low viscosity yarn lubricating compositions consisting of 40-60 percent by weight of a low viscosity hydrophobic lubricant such as butyl stearate and hexadecyl stearate; 20-55 percent by weight of a hydrophilic lubricant such as polyoxyethylene(2-10)fatty alcohols, polyoxyethylene(5-20)nonyl phenols, and polyoxyethylene(5-20)tridecyl alcohol; 5-15 percent by weight of selected antistats such as polyoxyethylene(8)lauric acid, polyoxyethylene(20)tallow amine, and polyoxyethylene(23)coconut fatty acid esters of glycerine, and from 0.1-5 percent of a polar coupling agent such as water, low molecular weight alcohols and low molecular weight alcohol-ethers are especially suitable for direct application in the processing of polyester and polyamide yarns.

Abstract: Antistatic pile carpet comprising carbon fibers arranged in the backing layer along the direction of pile rows.

Abstract: A durable antistatic coating is achieved on polymethylmethacrylate plastic without affecting its optical clarity by applying to the surface of the plastic a low molecular weight solvent having a high electron affinity and a high dipole moment such as acentonitrile or nitromethane alone or in the presence of photopolymerizable monomer. The treated polymethylmethacrylate plastic can then dissipate most of the induced electrostatic charge and retains its optical clarity. The antistatic behavior persists after washing, rubbing and vacuum treatment.

Abstract: Process for the production of a crimped metal-coated continuous-filament or a crimped yarn of a plurality of metal-coated filaments which filament or yarn is adapted for combination with other filaments to form an improved yarn for use in making anti-static fabrics, such as pile carpets or the like, wherein the continuous-filament or yarn comprising a plurality of filaments is first made into a knitted fabric, the fabric is treated to deposit a continuous metal coating on the filament or yarn thereof, and the coated fabric thus obtained is deknitted, thereby yielding the metal-coated continuous-filament or yarn in a crimped disposition characteristic of the knitted loop construction existing in the knit fabric. Heat treatment of the crimped filament or yarn after the metal-coating step significantly improves its anti-static properties when incorporated into fabric.

Abstract: A flexible camouflage base material includes three layers, one being a layer of non-woven, flexible, electrically nonconductive polymeric material, a second layer of substantially identical material, and a third layer lying between the first two, the third layer having two sets of strands, the first and second layers being bonded to the third layer and to each other through openings in the third layer. The third layer includes a first array of strands spun from polyamide or polyester fibers and electrically conductive fibers, such as stainless steel or graphite, the strands being arranged in parallel relationship with each other and lying in a plane parallel to the first and second layer. The third layer also includes an adjacent array of strands of the same nature as the first array, the strands of the second array being disposed at an angle to the first to form a plurality of parallelogram-shaped openings. The larger angles of the parrallelograms thus formed are between about 100.degree. and about 105.

Abstract: A catheter or other medical tube is formed by extruding of a suitable thermoplastic with an integral stripe portion simultaneously formed by extruding of the same or a compatible plastic material into the wall of the tube. The integral stripe portion has dispersed therein a powdered conducting metal or carbon and an X-ray opaque powdered salt such as a bismuth or bromide salt. The completely different functioning pigments may be incorporated in sufficient quantities to provide reliable dual functions without disrupting or otherwise adversely affecting the strength and characteristic of the tube for the purposes intended in the medical art. The stripe portion is preferably crowned to extend the exterior surface from the contiguous body of the tube and thus further provide additional carrier for the mixture of the two different pigments.

Abstract: A knitted or woven cloth having antistatic properties which is suitable for use in the preparation of filter bags and garments, which is characterized in that said cloth contains an electrically conductive thread composed of 10 to 90 weight % of electroless metal plated staple fibers, and 90 to 10 weight % of metallic filaments, in an amount of 0.1 to 1.0 thread per cm width of the cloth.

Abstract: A radioactive layer in a radioactive source is sealed by the application of a sealing layer on the radioactive layer. The sealing layer can consist of a film of oxide of titanium, tin, zirconium, aluminum, or chromium. Preferably, the sealing layer is pure titanium dioxide. The radioactive layer is embedded in a finish enamel which, in turn, is on a priming enamel which surrounds a substrate.

Abstract: The combination of a flexible, thin-walled plastic tube having thereon an external, electrically conductive, helical bead which is formed of a plastic mixed with a conductive material and which is heat sealed to the plastic of the tube. Electrical conductors are electrically connected to the bead adjacent the ends of the tube. The bead is normally opaque and the tube transparent. However, the tube may also contain a conductive material and be opaque.