Patent ID: 8399563

Claim:
A golf ball comprising: a core consisting of at least one layer; an intermediate layer covering the core; and a cover covering the intermediate layer and having a thickness ranging from 0.3 mm to 1.0 mm, wherein the cover is formed from a cover composition that contains as a resin component (A) a highly elastic polyamide resin having a flexural modulus in a range from 700 MPa to 5,000 MPa; (B) a metal-neutralized product of ethylene-(meth)acrylic acid binary copolymer and/or a metal-neutralized product of ethylene-(meth)acrylic acid-(meth)acrylic acid ester ternary copolymer in an amount ratio ((A)/(B)) of (A) the highly elastic polyamide resin to (B) the metal-neutralized product of the binary copolymer and/or the ternary copolymer being (5 mass % to 80 mass %)/(95 mass % to 20 mass %) (the total is 100 mass %); and (C) a resin having a polar functional group in an amount of 0.1 part by mass to 20 parts by mass with respect to 100 parts by mass of a sum of (A) the highly elastic polyamide resin and (B) the metal-neutralized product of the binary copolymer and/or the ternary copolymer, and wherein the cover composition has a slab hardness ranging from 65 to 75 in Shore D hardness, and wherein a surface hardness (H3) of the core and a slab hardness (H4) of the intermediate layer composition constituting the intermediate layer satisfy an equation H3>H4.