主权项 |
1. A golf ball comprising:
a two layer core and a cover disposed about the two layer core, the two layer core comprising an inner core layer and an outer core layer disposed about the inner core layer, said inner core layer comprising a geometric center and a first outer surface and being formed from a substantially homogenous formulation and having a diameter of about 30 mm or lower and having a plurality of hardnesses of from about 60 Shore C to about 85 Shore C, the geometric center comprising a first hardness and the first outer surface comprising a second hardness wherein the second hardness is greater than the first hardness to define a positive hardness gradient of from about 5 Shore C to about 20 Shore C; said outer core layer comprising an inner surface and a second outer surface and being formed from a substantially homogenous formulation and comprising a thickness of about 10 mm or lower and having a plurality of hardnesses of from about 60 Shore C to about 95 Shore C, wherein the inner surface comprises a third hardness that is similar to the second hardness and the second outer surface comprises a fourth hardness, the outer core layer further comprising a fifth hardness disposed between the inner surface and the second outer surface, wherein the fifth hardness is greater than the third hardness and the fourth hardness, and the plurality of hardnesses of the outer core layer beyond the third hardness is greater than the plurality of hardnesses of the inner core layer; and wherein the fourth hardness is greater than the first hardness to define a positive hardness gradient of about 30 Shore C or lower. |