| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a golf ball especially excellent in durability. <P>SOLUTION: In the golf ball, the short fibers of organic fibers are mixed, and the organic fibers are polyketone fibers for which at least 95 mol% of a repeating unit comprises polyketone indicated by the following formula (1). <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
