申请人:Dunlop Sports Co., Ltd.
公开号:EP2610291A2
公开(公告)日:2013-07-03
An object of the present invention is to provide a golf ball having a low spin rate on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) base rubber, (b) an α,β-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 carboxylic acid having a benzene ring and/or a salt thereof, provided that the rubber composition further contains (e) a metal compound in case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent.
本发明的目的是提供一种在发球木杆击球时后旋率较低的高尔夫球。本发明提供了一种高尔夫球,包括一个球形芯和至少一个覆盖在球形芯上的覆盖层,其中球形芯由橡胶组合物形成,该橡胶组合物含有(a)基础橡胶,(b)具有 3 至 8 个碳原子的α,β-不饱和羧酸和/或作为共交联剂的金属盐,(c)交联引发剂和(d)具有苯环的羧酸和/或其盐、(c) 交联引发剂和 (d) 具有苯环的羧酸和/或其盐,条件是在仅含有 (b) 具有 3 至 8 个碳原子的 α,β-不饱和羧酸作为共交联剂的情况下,橡胶组合物还含有 (e) 金属化合物。