| 主权项 |
1. A golf ball comprising:
a core composed of a fully neutralized polymer material, having a diameter ranging from 1.20 inch to 1.50 inches, and mass ranging from 25 grams to 35 grams; an inner mantle layer disposed over the core, the inner mantle layer having a thickness ranging from 0.030 inch to 0.100 inch, the inner mantle layer composed of an ionomer material; a first center mantle layer disposed over the inner mantle layer, the first center mantle layer having a thickness ranging from 0.030 inch to 0.050 inch, the first center mantle layer composed of a fully neutralized polymer material; a second center mantle layer disposed over the second center mantle layer, the second center mantle layer having a thickness ranging from 0.030 inch to 0.050 inch, the second center mantle layer composed of a fully neutralized polymer material; an outer mantle layer disposed over the second center mantle layer, the outer mantle layer having a thickness ranging from 0.030 inch to 0.050 inch, the outer mantle layer composed of a blend of ionomers; and a cover layer disposed over the outer mantle layer, the cover having a thickness ranging from 0.025 inch to 0.040 inch, the cover composed of a thermoplastic polyurethane material; wherein each of the mantle layers has a density substantially equal to the density of the core. |
