| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a golf ball excellent in repellency, excellent in flight performance, which can be produced with a high productivity by shortening vulcanizing time. <P>SOLUTION: A constituent element of the golf ball is a vulcanized molding of a rubber composite containing a rubber base material, which contains polybutadiene containing≥60 mass% of a cis-1,4-bond, an unsaturated carboxylic acid and/or its metal salt, an inorganic filler, and one kind or two kinds or more of organic peroxide selected from the group consisting of 1,1-bis(t-hexylperoxy)cyclohexane, 1,1-bis(t-hexylperoxy)3,3,5-trimethylcyclohexane, and 2,2-bis(4,4-di-t-butylperoxycyclohexyl)propane. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
