| 摘要 |
PURPOSE:To provide the titled resin compsn. which gives moldings having good electrical conductivity and excellent impact strength and appearance, by blending two kinds of carbon black having a specified specific surface area with a thermoplastic resin in a specified ratio. CONSTITUTION:96-50pts.wt. thermoplastic resin (A) (e.g. polyethylene or a propylene/ethylene block copolymer), 50-4pts.wt. carbon black (B) having a specific surface area of 850m<2>/g or above as measured by BET method (e.g. ketjen black, a product of AKZO) and 10-100pts.wt. (per 100pts.wt. component B) carbon black (C) having a specific surface area of 100m<2>/g or below as measured by BET method (e.g. acetylen black) are blended together to obtain an electrically conductive resin compsn. Not more than 50pts.wt. (per 100pts.wt. said compsn.) inert filler (e.g. calcium carbonate, talc or mica having an average particle size of 0.1-5mu) may be blended with said compsn.
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