Abstract: The electrically conductive, barium sulfate-containing composition consists of BaSO.sub.4 particles having a surface area of from 0.1 to 150 m.sup.2 /g. The BaSO.sub.4 particles each are provided with a SnO.sub.2 coating having a thickness of 2 to 80 nm and containing from 1 to 15% by weight of the Sb.sub.2 O.sub.3. The electrically conductive, barium sulfate-containing composition is made by a method including the steps of adding a first acidic solution containing 1 to 95% by weight SnCl.sub.4 and a basic solution to an aqueous dispersion from 50 to 800 g/l of BaSO.sub.4 to make a basic mixture having a pH from 9 to 15; then adding an acid to the basic mixture to form an acidic mixture having a pH from 4 to 1; then adding a second acid solution containing 0.5 to 60% by weight of SbCl.sub.

Abstract: A method is provided for the high yield production of white, electrically conductive zinc oxide which comprises the simultaneous addition to a reactor of (1) an aqueous solution containing a water-soluble zinc compound and at least one water-soluble compound of a metal selected from the group consisting of tin, aluminum, gallium and indium, and (2) an aqueous alkaline solution, while maintaining the resulting neutralization reaction solution at a pH from 6 to 12.5 to obtain coprecipitates, and then calcining the coprecipitates in a reducing atmosphere to obtain said conductive zinc oxide.

Abstract: A fibrous electrically-conductive filler comprises fibrous aluminum borate as a core material and a layer of a electrically-conductive substance which covers the core material or comprises fibrous aluminum borate as a core material, a layer of titanium oxide which covers the fibrous aluminum borate and a layer of a electrically-conductive substance which covers the titanium oxide layer. The fibrous electrically-conductive filler can be prepared by a process comprising the step of directly forming a layer of a electrically-conductive substance doped with antimony or fluorine on the surface of fibrous aluminum borate, or the steps of forming, on the surface of the fibrous aluminum borate, an intermediate layer of titanium oxide in an amount ranging from 2 to 50% by weight on the basis of the weight of the fibrous aluminum borate and then forming a layer of a electrically-conductive substance doped with antimony or fluorine on the surface of fibrous aluminum borate.

Abstract: A process for preparing a conductive, acicular zinc oxide, comprising the steps of: preparing a zinc oxide slurry comprising an acicular zinc oxide, a salt of at least one metal selected from the group consisting of aluminum, gallium, indium and tin and an aqueous solution of an alkali metal hydroxide and having a pH value maintained at 10 to 13, adjusting the pH value of said zinc oxide slurry to 5 to 9 while stirring, aging the slurry, separating the zinc oxide present in the slurry by filtration, washing and drying the separated zinc oxide, and then firing the dried zinc oxide at 500.degree. to 700.degree. C. in a reducing atmosphere.

Abstract: An electrically conductive powder is provided which comprises particles of zinc sulfide coated with an elecctrically conductive coating of copper sulfide wherein the zinc sulfide particles have a BET surface area of 2 to 10 m.sup.2 /g and a purity of at least 97%, and is particularly useful to impart antistatic properties to plastics, synthetic fibers, laminated papers and the like.

Abstract: Needle-like electrically conductive zinc oxide filler having low specific volume resistance and excellent electrical conductivity-imparting effect per unit weight thereof is provided, including a method for its preparation.

Abstract: A copper-base alloy which consists essentially of 1 to 7% tin and 1 to 7% aluminum and contains aluminum and tin in a total not in excess of 10%, balance copper and inevitable impurities which are due to the manufacturer, is disclosed. It is useful as a coinage material of gold color.

Abstract: An alloy useful as a coinage alloy, especially as a cladding for a coin comprising a core and a cladding is disclosed. The alloy consists essentially of 4 to 6% nickel, 4 to 6% aluminum, balance copper and inevitable impurities which are due to the manufacture. Also disclosed are coins made therefrom having a gold-like color.

Abstract: A brass alloy consisting essentially of 57 to 62% by weight copper, 1 to 4% by weight lead and the balance zinc has improved machinability in terms of allowing high coating speeds or affording reduced coating tool wear, especially when the alloy is machined upon an automatic lathe, by the inclusion therein of 0.15 to 0.20% by weight each of tin and magnesium.