| 摘要 |
PROBLEM TO BE SOLVED: To obtain a synthetic resin that radiates a negative ion by weak radiation and far-infrared radiation and has durability, and a molding using the same. SOLUTION: The resin material is obtained by adding an additive to a polyurethane 12, a polyurethane 22a, a nylon 23a, a polyurethane 33a and a low-repulsion polyurethane 41a. The additive is composed of at least one of radium powder 15 and black silica powder 14 and charcoal powder 13. The amount of the radium powder 15 added is 5-18 wt.% based on the total of the resin material, the amount of the black silica powder 14 added is 1-10 wt.% based on the total of the resin material and the amount of the charcoal powder 13 added is 5-20 wt.% based on the total of the resin material. COPYRIGHT: (C)2007,JPO&INPIT
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