Patent ID: 8109843

Claim:
A golf ball comprising: a center comprising a first resilient rubber-based component comprising a first base rubber and a first crosslinking agent, wherein the first crosslinking agent is present in a first amount; an outer core layer disposed about the center to form a core comprising a second resilient rubber-based component comprising a second base rubber and a second crosslinking agent, wherein the second crosslinking agent is present in an second amount of about 20 to about 40 parts per hundred parts of the second base rubber, wherein the second amount is greater than the first amount by at least about 5 parts per hundred, and wherein the second resilient rubber-based component has different physical properties than the first resilient rubber-based component; an inner cover layer disposed about the core comprising a material having a first Shore D hardness; and an outer cover layer disposed about the inner cover layer formed from a castable reactive liquid material and having a second Shore D hardness less than the first Shore D hardness.