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AssigneeShowa Denko K.K.
InventorsToshio Morita, Ryuji Yamamoto, Masaharu Toki
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(1) A carbonaceous material for forming an electrically conductive composition, comprising a vapor grown carbon fiber, each fiber filament of the carbon fiber having an outer diameter of 2 to 500 nm and an aspect ratio of 10 to 15,000, or the carbon fiber containing boron in an amount of 0.01 to 5 mass %, and graphitic particles and/or amorphous carbon particles, wherein the amount of the vapor grown carbon fiber is 10 to 90 mass %, the amount of the graphitic particles is 0 to 65 mass %, and the amount of the amorphous carbon particles is 0 to 35 mass %; (2) an electrically conductive composition comprising the carbonaceous material for forming an electrically conductive composition, and a producing method thereof; (3) an electrically conductive coating material comprising, as an electrically conductive material, the electrically conductive composition, and an electrically conductive coating film and electric device using the electrically conductive coating material.
A carbonaceous material for forming an electrically conductive composition, comprising a vapor grown carbon fiber, each fiber filament of the carbon fiber containing a hollow space along the filament in its interior and having a multi-layer structure, an outer diameter of 2 to 500 nm and an aspect ratio of 10 to 15,000, graphitic particles that contain boron and amorphous carbon particles, wherein the amount of the vapor grown carbon fiber is 10 to 90 mass %, the amount of the graphitic particles is 3 to 65 mass %, and the amount of the amorphous carbon particles is 7 to 35 mass %.
Dependencies are inferred from the claim text.