| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a golf ball adequate for a player relatively slow in head speed by securely adhering cores constituting multilayered cores to each other and coating the innermost layer core of high hardness with the soft outermost layer core. SOLUTION: The multilayered cores 2 of the golf ball, which has the multilayered cores 2 consisting of at least two layers and is constituted by covering the circumference of the multilayered cores 2 with at least one layer of a cover 3, is formed of base material rubber or a resin component essentially consisting of a polybutadiene as a main material and has the layer compounded with >=10 pts.wt. metallic powder of an average particle size 0.1 to 300×m of at least one kind selected from metals of atomic numbers 24 to 28 per 100 pts.wt. the base material rubber or resin component.</p> |
