Patent ID: 8113966
Filing Date: 2012-02-14
Classification: A63B

Abstract:
1. A golf ball, comprising: a golf ball core comprising a center point having a first hardness value, and an outer surface having a second hardness value, different from the first hardness value, wherein a gradient in hardness value between the first hardness value and the second hardness value across a radius of the golf ball core occurs in discrete increments, and wherein regions of the golf ball core having discrete hardness values are arranged concentrically about the center point; two or more intermediate layers enclosing the golf ball core; and a cover layer, wherein at least one of the intermediate and cover layers comprises a modified ionomeric polymer, where the modified ionomeric polymer comprises a blend including the reaction product of three components, (A), (B) and (C), wherein: component (A) is a polymer comprising ethylene and/or an alpha olefin, and one or more α, β-ethylenically unsaturated C component (B) is a compound having a general formula (R component (C) is a basic metal ion salt, which has the capacity to neutralize some, or all of the acidic groups present in the blend of components (A) and (B).