| 摘要 |
PROBLEM TO BE SOLVED: To provide a golf ball showing a great flight distance on driver shots.SOLUTION: The present invention provides a golf ball comprising a spherical core and at least one layer of cover covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) base rubber, (b) an α,&bgr;-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator and (d) a mercaptocarboxylic acid derivative and/or a dithiodicarboxylic acid derivative. |
