Other

Toska Co., Ltd.

Sk Kohki Co., Ltd.

Hiroshi Nishino

Yong Kim

Yong Chul Kim

Kazuo Okabe

A conductive polymeric coating paste made by thoroughly mixing ingredients in a heated stirring vessel is composed of an aromatic solvent, a quantity 'X' of free conductor powder, a substrate-forming elastomer, which contains no diene monomer, equal to 0.25X to 0.40X, by weight, and a paraffin equal to 0.25X to 0.40X, by weight, of said conductor powder.

Conductive polymeric coatings with positive temperature coefficients of

A method is provided for making a spreadable conductive polymeric coating having a positive temperature coefficient of resistivity including the steps of mixing aromatic solvents in a heated vessel, stirring, and heating to a temperature between 40 and 60 degrees Celsius; adding a quantity of substrate-forming elastomer, which contains no diene monomer, equal to 25% to 40%, by weight, of a conductor powder to be added in a later step; adding a quantity of a paraffin equal to 25% to 40%, by weight, by weight, of the conductor powder to be added and continuing to stir until all solids are dissolved; adding a fine conductor powder and continuing to stir until a smooth paste is formed; and mix-kneading the paste until a substantially uniform dispersion of the fine conductor powder in the paste is achieved. The paste, when suitably thinned, can be screen printed or otherwise spread on a wide variety of surfaces and thermally cured to form a thin conductive layer having a PTC of resistivity for use in heating without the need for thermostatic control of the temperature. The pastes can be formulated for a variety of PTCs.

Method for producing conductive polymeric coatings with positive

A conductive coating composition comprising a graphite intercalation compound, carbon black, a binder, and a solvent is provided. The graphite intercalation compound is prepared by a process comprising reacting a dried metal chloride, a salt capable of forming a molten salt together with the metal chloride, and a graphite in a molten state in a chlorine gas stream under atmospheric pressure or a process comprising reacting a dried metal chloride, a salt capable of forming a molten salt together with said metal chloride, a salt capable of forming a double salt in a gas phase together with the metal chloride, and a graphite in a molten state in a chlorine gas stream under atmospheric pressure.

Conductive coating composition comprising graphite intercalation

A process for preparing a conductive coating composition comprising the steps of forming a graft copolymer onto the surfaces of graphite and carbon black, adding an azo compound to the reaction system to complete the reaction, and curing the resulting product to form a network structure inside the product.

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Yokohama, Japan

Hiroshi Nishino