| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a golf ball which is excellent in durability, abrasion resistance, and an appearance. <P>SOLUTION: The method of manufacturing the golf ball having an urethane cover includes a step of: blending thermoplastic polyurethane and titanium oxide to prepare a cover material; and forming the cover using the cover material. The melt viscosity ratio of the thermoplastic polyurethane and the cover material (the cover material/the thermoplastic polyurethane) is 0.8-2. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
