Patent ID: 8715113
Filing Date: 2014-05-06
Classification: A63B

Abstract:
1. A golf ball comprising: (a) a unitary core material having a PGA compression of less than 70 and a material flexural modulus of less than 20 kpsi; (b) an inner mantle layer material; (c) an intermediate mantle layer material; (d) an outer mantle layer material; and (e) at least one cover layer material; wherein the material of each of (a), (b), (c) and (d) have a material flexural modulus and the material flexural modulus of each of (a), (b), (c) and (d) increases from the core material to the outer mantle layer material such that each successive layer between the core material and the outer mantle layer material has a flexural modulus that is greater relative to the immediately adjacent inner layer material, and wherein the inner mantle layer, the intermediate mantle layer, and the outer mantle layer each individually comprises a unimodal ionomer; a bimodal ionomer; a modified unimodal ionomer; a modified bimodal ionomer; a thermoset polyurethane; a polyester elastomer; a copolymer comprising at least one first co-monomer selected from butadiene, isoprene, ethylene or butylene and at least one second co-monomer selected from a (meth)acrylate or a vinyl arylene; a polyalkenamer; or any and all combinations or mixtures thereof.