Patent ID: 8690712

Claim:
A golf ball comprising: an inner core having a first outer surface and a geometric center and being formed from a first substantially homogenous rubber composition such that the geometric center has a hardness of about 72 Shore C to about 78 Shore C and a trans content of about 5% to 9% and the first outer surface has a trans content of about 5% to 9%; an outer core layer disposed about the inner core and being formed from a second substantially homogenous rubber composition such that the outer core layer has a trans content of about 15% to 25%; and a cover layer disposed about the outer core layer comprising a castable polyurea or a castable polyurethane; wherein a hardness of the first outer surface is 57 Shore C to 63 Shore C and is lower than a hardness of the geometric center to define a negative hardness of about −1 to −15, and the trans content of the first outer surface and the geometric center are substantially the same.