| 摘要 |
A multi-layer structured golf ball having high initial velocity at low head speed region and excellent flight performance, while maintaining the characteristics inherent in conventional thread wound golf balls, i.e. good shot feel, wherein the multi-layer structured golf ball has (a) a solid core having a diameter of 23 to 37 mm, and a deformation amount of 2.5-10 mm with a load of 10 kgf to 130 kgf (b) an intermediate cover having a thickness of 0.5 to 5.0 mm and formed from a thermoplastic resin on the solid core, (c) a thread rubber layer having a thickness of 1.0 to 5.0 mm, formed on the intermediate cover, and (d) an outer cover covering the thread rubber layer, formed from a thermoplastic resin. |
