Patent ID: 8118690

Claim:
A golf ball which comprises a spherical core, and a cover positioned outside of the core, said core having a spherical center, and a mid layer positioned outside of the center, said cover having a thickness Tc of equal to or less than 1.2 mm, and said cover having a hardness Hc being less than the central hardness Ho of the center, wherein the difference (Ho−Hc) between the Shore D central hardness Ho of the center and the Shore D hardness Hc of the cover is 4.0 or greater, wherein the center is obtained through crosslinking of a rubber composition, wherein the mid layer comprises a resin composition and the principal component of the base polymer in the resin composition of the mid layer is an ionomer resin, and wherein the cover comprises a resin composition and the principal component of the base polymer in the resin composition of the cover is a thermoplastic polyurethane elastomer.