PROBLEM TO BE SOLVED: To provide a method for preventing various bacteria generating on a high molecule polymer.SOLUTION: There is provided a method for adding and mixing a high temperature sintered high purity powder of shells exhibiting antibacterial property by a burning treatment under high temperature (1,100°C or more) for specified time to a high molecule polymer.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】高分子ポリマーに雑菌が発生することを防止する方法の提供。【解決手段】高温下(1,100℃以上)で指定時間焼成処理をすることで抗菌性が発現する貝殻の高温焼成高純度粉末を高分子ポリマーに付加混合する方法。【選択図】なし