| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a soccer ball made of an environmentally considered material having high durability, impact resistance and high stability to humidity and temperature. <P>SOLUTION: The soccer ball includes an outer skin layer 11 covering a spherical hollow tube 14. The outer skin layer 11 has a laminated structure of a polyamide-based elastomer film 12 and a thermoplastic polyurethane film 13 from the tube 14 side. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
