Patent ID: 7074138

Claim:
A solid golf ball comprising: a dual core including an inner, high density, spherical center core layer and an outer core layer disposed about said spherical center core layer, wherein said spherical center core layer has a specific gravity from about 1.2 to about 12.0, a diameter of less than 0.590 inch, and a Shore C hardness of 70 or less and comprises a blend including a powdered metal and a first matrix material comprising an elastomeric base material, and wherein said outer core layer has a specific gravity of less than 2.0, a diameter of up to 1.60 inches and comprises a second matrix material selected from the group consisting of thermosets, thermoplastics, and combinations thereof; an inner cover layer formed about said dual core having a thickness of about 0.03 inch to about 0.07 inch, the inner layer comprising an ionomer material; and an outer cover layer disposed on said inner cover layer having a thickness of about 0.010 to about 0.100 inch, the outer cover layer composed of a polyurethane material, wherein said outer cover layer has a Shore D hardness less than the Shore D hardness of the inner cover layer.