| 摘要 |
A golf ball formed of multiple layers that allows limiting an uplifting trajectory, providing a trajectory in which the height of the golf ball is well retained in the latter half of the flight of the ball thereby increasing travel distance, where at least one layer is made of a composition of a ternary copolymer ionomer, a higher fatty acid and an inorganic metal compound mixed together, at least 80% of the carboxyl group contained in the composition is neutralized, and the total volume of the dimples (Dv) on the cover surface ranges from 495 to 575 mm<3>. The above composition is suitable for the cover. The higher fatty acid is a fatty acid with 12 to 40 carbon atoms, and preferably is stearic acid or oleic acid. |
