Patent ID: 8440767

Claim:
A golf ball comprising: a. a core, wherein said core comprises a center and one or more layers disposed around said center, and wherein the difference between the hardness of one layer and the next adjacent layer is greater than 2 Shore D units, and wherein said core comprises at least one unsaturated polymer; at least one cross-linking agent; at least one co-cross-linking agent, and a peptizer, wherein said peptizer is the NH 4 + salt of pentachlorothiophenol, present in amount in the range of about 0.15 to about 5 parts by weight per 100 parts by weight of the unsaturated polymer, said unsaturated polymer is cis-1,4-polybutadiene and has a Mooney viscosity (ML1+4(100° C.)) in the range of about 35 to about 50, and said cross-linking agent is present in an amount in the range of about 0.2 to about 2 parts by weight per 100 parts by weight of the unsaturated polymer; b. an intermediate layer; and c. a cover layer; d. wherein said intermediate layer comprises a modified ionomeric polymer comprising a blend composition comprising: (1) ethylene, (2) 5 to 25 weight percent (meth)acrylic acid (based on the total weight of (1), (2), and (3)), and (3) 0 to 40 weight percent of a C 1 to C 8 -alkyl acrylate (based on the total weight of (1), (2), and (3)), and (4) about 5 to about 45 weight percent (based on the total weight of said modified ionomeric polymer), of a fatty acid or one or more metal salts of said fatty acid, wherein about 40 to 100 percent of the acid groups present in said modified ionomeric polymer are neutralized with zinc, sodium, lithium, calcium, or magnesium ions, or a combination thereof; e. wherein said core has a diameter in the range of about 1.20 to about 1.56 in. and a PGA compression in the range of about 40 to about 90; f. wherein said intermediate layer has a thickness in the range of about 0.01 to about 0.10 in. and a Shore D hardness in the range of about 30 to about 75; g. and wherein said cover layer has a Shore D hardness in the range of about 40 to about 70; and wherein the golf ball has a coefficient of restitution greater than 0.800, at 125 ft/sec inbound velocity.