申请人:Dunlop Sports Co., Ltd.
公开号:US20150273278A1
公开(公告)日:2015-10-01
An object of the present invention is to provide a golf ball traveling a great distance on driver shots. The present invention provides a golf ball comprising a constituting member formed from a rubber composition containing (a) 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, and (c) an crosslinking initiator, wherein (b) the α, β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or the metal salt thereof meets the following conditions (1) and (2) in a volume based distribution, when measuring a particle size thereof with a laser diffraction particle size analyzer;
(1) a mode particle size is more than 10 μm and 50 μm or less, and
(2) a volume ratio of particles having a particle size ranging from 6 μm to 300 μm is 60% or more.
本发明的目的是提供一种能够在球杆击球时飞行距离更远的高尔夫球。本发明提供了一种高尔夫球,其包括由橡胶组成的构成部分,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/或其金属盐作为共交联剂,以及(c)交联引发剂。其中,(b)α,β-不饱和羧酸具有3至8个碳原子和/或其金属盐在基于体积的分布中满足以下条件(1)和(2),当用激光衍射粒度分析器测量其粒子大小时;(1)众数粒子大小大于10 μm且不超过50 μm,(2)粒径在6 μm至300 μm范围内的粒子的体积比为60%或更高。