Patent ID: 8974318
Filing Date: 2015-03-10
Classification: A63B

Abstract:
1. A golf ball comprising: a core composed of a fully neutralized polymer material; 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 material having a plaque Shore D hardness ranging from 30 to 50, 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 material having a plaque Shore D hardness ranging from 40 to 55, 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 material having a plaque Shore D hardness ranging from 45 to 55, 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, the outer mantle layer material having a plaque Shore D hardness ranging from 60 to 75; 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, the cover material having a plaque Shore D hardness ranging from 40 to 50, and the on cover Shore D hardness less than 56; wherein each of the mantle layers has a density substantially equal to the density of the core.