| 摘要 |
PROBLEM TO BE SOLVED: To maintain high electrical conductivity, enable surface to generate uniform heat and provide a light and simple shape by applying the constitution that an extrusion covered and granulated resin made of a thermoplastic resin is formed on carbon fiber roving having surface treated with specific emulsion, and the volumetric resistivity and thermal conductivity thereof are kept within the range of specific values. SOLUTION: A resin is deposited on carbon fiber roving for the coverage thereof through preliminary treatment with resin emulsion having compatibility with an extrusion covered thermoplastic resin or a thermoplastic resin. The roving after dries is extrusion covered with the thermoplastic resin, and injection or extrusion molded, using a thermoplastic resin containing granulated carbon fiber. The thermoplastic resin is thereby formed into a flat or filament type having volumetric resistivity between 0.01 and 100Ω.cm as well as thermal conductivity equal to or above 0.15kcal/ m.Hr. deg.C. The flat or filament types of the resin so prepared are arranged in series or in parallel on a warmed toilet seat. According to this construction, high electric conductivity is obtained by adding a small amount of conductive material, and the surface of the seat evenly generates heat. In addition, the seat becomes light and can be easily molded.
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