| 摘要 |
PURPOSE:To provide the title compsn. which has excellent antistatic properties and low wearability, can be colored and has a high specific gravity, by blending a polyamide resin with ZnO having a specified particle size. CONSTITUTION:ZnO which has been used as a catalyst for a chemical reaction is washed with water and fired at 500-700 deg.C to obtain ZnO having an average particle size of 1-10mum. 100pts.wt. polyamide resin is blended with 400-2,000pts. wt. said ZnO and optionally a lubricant (e.g., barium stearate), olefin oil, silicone oil, a pigment, etc. The mixture is kneaded at 240-290 deg.C.
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