| 摘要 |
PURPOSE:To obtain an abrasive which can impart antibacterial and deodorizing properties to pachinko balls, metals, etc., when used for polishing them, by adding an antibacterial deodorizer to a thermoplastic resin and pelletizing the mixture. CONSTITUTION:100 pts.wt. themloplastic resin, desirably a polyamide resin of an average molecular weight of 6000-60000 is mixed with 0.1-40 pts.wt. antibacterial deodorant having a particle diameter of 30mum or below and desirably being inorganic, and the mixture is pelletized to obtain an abrasive of a diameter of about 2-4 mm. |
