Patent ID: 8992343
Filing Date: 2015-03-31
Classification: A63B

Abstract:
1. A golf ball comprising a core and a three-layer cover, the cover comprising: a thermoplastic inner cover layer disposed about the core and having a material hardness of about 60 Shore D to about 80 Shore D; a thermoplastic polyurethane outer cover layer having a material hardness of about 20 Shore D to about 60 Shore D; and a thermoset intermediate cover layer disposed between the inner and outer cover layers and having a hardness substantially the same as the inner cover layer hardness and greater than the outer cover layer hardness; wherein the inner cover layer comprises one or more low-acid ionomers and the intermediate cover layer is formed from an ethylene propylene diene monomer-based liquid rubber polymer having a viscosity of about 10,000 cp or less.