Abstract: A polymer composition comprises a solid fusible particulate polymer material and a quantity of metal particles that have been blended with the particles of polymer material to render the composition electrically conductive. The composition may be consolidated by subjecting the particulate blend to heat and/or pressure. The electrically conductive polymer composition may be used to connect the electrically conductive screen (7) of a dimensionally recoverable article (6) to the electrically conductive shield (4) of a cable (1).

Abstract: An electroconductive powder composition of antimony-containing tin oxide with an outer layer of hydrous metal oxide having an isoelectric point in the range from about 5 to 9.

Abstract: An aqueous dispersion is described which contains electroconductive, doped, polyalkoxythiophene which is soluble in aprotic organic solvents and is insoluble in water. The dispersion has a residual solvent content of less than or equal to 25% by weight, based on the total weight of the dispersion. A process for the preparation of this dispersion and the use of the dispersion for forming coatings on substrates are also described.

Abstract: This invention provides a method of preparing an electrical overstress material having a nonlinear resistance which declines sharply in response to an electric field exceeding a clamping voltage so as to be able to shunt out transient surges which method comprises using an adhesive binder, for example a silicone rubber or a ceramics dispersion, and thorough mixing therein of small conductive, and optionally semiconductive particles, for example nickel particles of various morphologies and silicon carbide particles respectively, followed by molding under pressure and curing. The invention is also directed to the electrical overstress material itself which has excellent strength and integrity as well as survivability from multiple surges and has multiple applications in, for example, electrical outlet strips and power cables. The invention is also directed to a power outlet strip comprising a plurality of surge arresting elements composed of the electrical overstress material of the invention.

Abstract: A conductive silicone rubber composition comprises a conductive silicone rubber composition comprising:(a) an organopolysiloxane of the following general formula (1): ##EQU1## wherein R.sup.1 is an unsubstituted or substituted monovalent hydrocarbon group having 1 to 10 carbon atoms and "a" is a positive number of 1.90 to 2.05,(b) conductive carbon black, and(c) an organic peroxide of the following general formula (2): ##STR1## wherein X is --CH.sub.2).sub.n in which "n" is an integer of 2 to 8 or ##STR2## and R.sup.2 and R.sup.3 are independently selected from monovalent hydrocarbon groups having 3 to 10 carbon atoms and --SiR.sub.3.sup.4 in which R.sup.4 is a methyl, ethyl or phenyl group.

Abstract: A process for preparing a conductive polymer article comprises the steps of preparing a dispersible neutral intrinsically conductive polymer; dispersing the intrinsically conductive polymer in a thermoplastic polymer to form a blend; processing the blend into the shape of the desired article; and, contacting the processed article with a dopant solution capable of both swelling the thermoplastic polymer and doping the intrinsically conductive polymer. A process for preparing neutral polyaniline comprises the steps of neutralizing doped polyaniline with a sodium carbonate solution and washing the polyaniline with a polyethyleneglycol solution. A conductive polymer article comprises a blend of an intrinsically conductive polymer and a thermoplastic polymer which is subsequently doped. A conductive polymer blend according to the invention, includes polyaniline, or insulating thermoplastic material and carbon black.

Abstract: A conductive paste is provided which is prepared by kneading a composition comprising silver metal powder, an organic vehicle, and a silver-titanium alloy powder contained in an amount of 0.1 to 6.0% by weight based on the amount of the silver metal powder.

Abstract: A fusible conductive adhesive for making electrical and mechanical contact is provided. The fusible conductive adhesive contains a polymer having a glass transition temperature and a thermal expansion co-efficient. The thermal expansion co-efficient of the polymer is in the range of about 5 parts per million per degree centigrade to about 10 parts per million per degree centigrade along a z-axis. The polymer is loaded with a conductive material having a sintering temperature range overlapping the glass transition temperature of the polymer. In addition, the loading of the conductive material in the polymer is in the range of about 15% to about 20% conductive material by weight based on the total weight of the polymer and the conductive material.

Abstract: The present invention relates to an aqueous conductive polymer thick film-forming composition comprising a water-soluble thermoplastic polymer, a polymer dispersion in water, a glycol drying-retarder agent, an electrically conductive amount of conductive metal and/or carbon particles and water. The composition in the production of a highly printable conductive thick film ink.

Abstract: Radical cation salts having the composition of formula I ##STR1## wherein x has a value from -0.1 to +0.2. These radical cation salts crystallize in needle form and are electric conductors. They can be incorporated in polymers to form conductive networks of crystal needles in a polymer matrix. The polymers can be used for making antistatically treated mouldings or electrodes.

Abstract: An electrically conductive thick film resin composition comprising finely divided particles of (1) a conductive metal dispersed in a liquid organic medium comprising (2) acrylic polymer primary binder and (3) network resin auxiliary binder having a thermal degradation temperature of at least 300 C. dissolved in (4) volatile organic solvent.

Abstract: Low ohm RuO.sub.2 -based resistors are positively adjusted to 0 HTCR, without increasing resistance, using modified zeolite components of FCC catalyst. The non-metallic 0.2-8.0 wt % additions do not adversely affect past rheology or the physical properties of the resistors.

Abstract: A ZnO.sub.2 voltage non-linear resistor excellent in all characteristics of life under electrical stress, current impulse withstandability, discharge voltage ratio, change rate of discharge voltage after application of current impulse and moisture absorbency contains, as additive ingredients: 0.4-1.5 mol. % bismuth oxides as Bi.sub.2 O.sub.3, 0.3-1.5 mol. % cobalt oxides as Co.sub.2 O.sub.3, 0.2-1.0 mol. % manganese oxides as MnO.sub.2, 0.5-1.5 mol. % antimony oxides as Sb.sub.2 O.sub.3, 0.1-1.5 mol. % chromium oxides as Cr.sub.2 O.sub.3, 0.4-3.0 mol. % silicon oxides as SiO.sub.2, 0.5-2.5 mol. % nickel oxides as NiO, 0.001-0.05 mol. % aluminum oxides as Al.sub.2 O.sub.3, 0.0001-0.05 mol. % boron oxides as B.sub.2 O.sub.3, 0.0001-0.05 mol. % silver oxides as Ag.sub.2 O, and 0.0005-0.1 mol. % zirconium oxides as ZrO.sub.2, which bismuth oxides contain 30 wt. % of a .gamma.-type crystalline phase. A small-sizable ZnO.sub.

Abstract: High-temperature electrically conducting polymers. The in situ reactions: AgNO.sub.3 +RCHO.fwdarw.Ag.degree.+RCOOH and R.sub.3 M.fwdarw.M.degree.+3R, where M=Au or Pt have been found to introduce either substantial bulk or surface conductivity in high-temperature polymers. The reactions involving the R.sub.3 M were caused to proceed thermally suggesting the possibility of using laser means for initiating such reactions in selected areas or volumes of the polymeric materials. The polymers successfully investigated to date are polyphenylquinoxaline, polytolylquinoxaline, polyquinoline, polythiazole, and pyrrone.

Abstract: The invention relates to an electricity conducting material having magnetic properties constituted by an electronic conductive polymer in which are homogeneously dispersed permanent magnetic particles bonded chemically or physicochemically to the polymer or serving as a polymer dopant.This material can be prepared by the polymerizationa) of a monomer such as pyrrole in the presence of a colloidal suspension of charged magnetic particles, orb) a monomer such as pyrrole, chemically bonded to a magnetic particle.

Abstract: A resistor composition comprising a pyrochlore-related oxide a glass frit and, anorthite as a finely-divided filler. The resistor composition exhibits high tolerance in respect to firing temperatures. Thick film resistors obtained therefrom by firing on, for example, aluminum oxide substrates, have relatively uniform resistance values, even with inconsistent firing conditions, and have high stability of resistance following laser trimming.

Abstract: Conductivizing coating solutions prepared from cuprous iodide and ligands which are pyridine or monodentate pyridine derivatives provide excellent transparent, conductive coatings for use in electrophotographic and ground plane including articles. The coating compositions may also utilize solvents which solubilize the cuprous iodide-ligand complex formed. A method of forming transparent conductivizing coating solutions is also provided.

Abstract: A conductive metal-filled substrate is formed by intermingling copper or nickel particles into the substrate, contacting the metal particles with a specified developing agent, and heating the metal particles and the developing agent. The filled substrates are electrically conductive and are useful for a variety of uses such as EMI shielding.

Abstract: A conductive polymer composition in which a particulate conductive filler is dispersed in a polymeric component which is a mixture of an essentially amorphous thermoplastic resin and a thermosetting resin. In preferred compositions, the amorphous thermoplastic resin and the thermosetting resin are substantially mutually soluble. In order to improve the thermal stability of the composition on exposure to successive thermal cycles, it is preferred that the composition be cured by heating the uncured mixture of amorphous thermoplastic resin, thermosetting resin, and particulate conductive filler at a rate of at least 15.degree. C./minute to the cure temperature.

Abstract: A screen printable thick film paste composition comprising finely divided particles of electrically functional solids dispersed in an organic medium comprising a plurality of solid organic polymers having high and low relaxation rate constants (k.sub.r) dissolved in volatilizable organic solvent.