Patent ID: 8809428

Claim:
A golf ball comprising; 1) a unitary core, 2) an outer cover layer comprising a thermoset polyurethane or polyurea; and 3) three mantle layers, including an outer mantle layer immediately adjacent the outer cover layer, wherein the outer mantle layer comprises a blend composition of; (A) from about 50 to about 95 wt % (based on the combined weight of Components A and B) of a polyamide; and (B) from about 5 to about 50 wt % (based on the combined weight of Components A and B) of one or more functional polymer modifiers selected from the group consisting of a copolymer having a glycidyl group, hydroxyl group, maleic anhydride group or carboxylic group, or a terpolymer having a glycidyl group, hydroxyl group, maleic anhydride group or carboxylic group, and mixtures thereof; and wherein said blend composition has a flexural modulus of from about 5 to about 500 kpsi, a Shore D hardness of from about 25 to about 85, and a tensile elongation of at least about 20% and wherein one of the mantle layers other than the outer mantle layer comprises a polyalkenamer, and one of the mantle layers other than the outer mantle layer comprises a modified ionomer.