Patent ID: 7652086

Claim:
A golf ball comprising: a center comprising a highly-neutralized thermoplastic copolymer of ethylene and an α,β-unsaturated carboxylic acid, the acid being 100% neutralized by a salt of an organic acid and a cation source; a cover; and an intermediate layer disposed between the center and the cover; wherein the golf ball has a first coefficient of restitution of 0.81 or greater when measured at an incoming velocity of 125 ft/s and a second coefficient of restitution of 0.76 or greater when measured at an incoming velocity of 160 ft/s; and a sphere resulting from a combination of the center and the intermediate layer has a compression of 60 or greater; and wherein the center has a diameter of from 0.80 inches to 1.40 inches and a compression of 30 or less, and the intermediate layer has flexural modulus of 50,000 psi to 70,000 psi and a thickness of 0.110 inches to 0.180 inches, and the cover comprises thermoset polyurea or hybrid thereof having a hardness of from 45 Shore D to 60 Shore D and a thickness from 0.020 inches to 0.040 inches.