Patent ID: 7591742

Claim:
A golf ball having a diameter and being comprised of a core and a cover, wherein the core is further comprised of a fluid mass at the center of the ball, a shell encompassing the fluid mass, and a first, solid, non-wound mantle layer surrounding the shell, wherein the first mantle layer comprises a copolymer or terpolymer of ethylene and an α,β-unsaturated carboxylic acid, the acid being neutralized at least 80% by a salt of an organic acid or a suitable base of the organic acid, and a less hydrophilic cation source, wherein the shell comprises a material selected from the group of polyolefin, polyethylene, polypropylene, polyurea, ionomer, acid copolymer, thermoplastic polyetherester, thermoplastic polyetheramide, thermoplastic polyurethane, styrene butadiene copolymer, polycarbonate, polyester elastomer, polyamide elastomer, dynamically vulcanized thermoplastic elastomer, metallocene catalyzed polyolefinic copolymers, fluoropolymer, functionalized fluoropolymer, and thermoplastic polyester, and wherein the liquid center shell has an inner diameter of about 0.25 to 1.5 inches and the mantle layer has an outer diameter of about 1.3 to 1.65 inches.