| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve spin performance and abrasion resistance of a golf ball having a cover using a nonionic polyurethane as the resin component. <P>SOLUTION: The golf ball has a core and a cover covering the core. The cover contains nonionic polyurethane as the resin component. The hard segment content of the nonionic polyurethane is 24.5% by mass to 34.7% by mass. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
