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    Golf ball
    1.
    发明公开
    Golf ball 有权

    公开(公告)号：EP2668977A2

    公开(公告)日：2013-12-04

    申请号：EP13168981.2

    申请日：2013-05-23

    申请人： Dunlop Sports Co., Ltd.

    发明人： Sajima, Takahiro ,  Nakamura, Hirotaka

    IPC分类号： A63B37/00

    CPC分类号： A63B37/0054 ,  A63B37/0003 ,  A63B37/0031 ,  A63B37/0032 ,  A63B37/0038 ,  A63B37/0044 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0076 ,  A63B37/0092

    摘要： A golf ball 2 includes a spherical core 4 and a cover 6 covering the core 4. The cover 6 includes an inner cover 8 and an outer cover 10 positioned outside the inner cover 8. When distances (%) from a central point of the core 4 to nine points and hardnesses at the nine points, which nine points are obtained by dividing a region from the central point to a surface of the core 4 at intervals of 12.5% of a radius of the core 4, are plotted in a graph, R 2 of a linear approximation curve obtained by a least-square method is 0.95 or greater. A hardness of an innermost layer of the cover 6 is greater than a surface hardness of the core 4. Preferably, the core is obtained by a rubber composition being crosslinked. The rubber composition includes an acid and/or a salt (d).

    Golf ball
    2.
    发明公开
    Golf ball 有权
    高尔夫球

    公开(公告)号：EP2668977A3

    公开(公告)日：2014-09-03

    申请号：EP13168981.2

    申请日：2013-05-23

    申请人： Dunlop Sports Co., Ltd.

    发明人： Sajima, Takahiro ,  Nakamura, Hirotaka

    IPC分类号： A63B37/00

    CPC分类号： A63B37/0054 ,  A63B37/0003 ,  A63B37/0031 ,  A63B37/0032 ,  A63B37/0038 ,  A63B37/0044 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0076 ,  A63B37/0092

    摘要： A golf ball 2 includes a spherical core 4 and a cover 6 covering the core 4. The cover 6 includes an inner cover 8 and an outer cover 10 positioned outside the inner cover 8. When distances (%) from a central point of the core 4 to nine points and hardnesses at the nine points, which nine points are obtained by dividing a region from the central point to a surface of the core 4 at intervals of 12.5% of a radius of the core 4, are plotted in a graph, R 2 of a linear approximation curve obtained by a least-square method is 0.95 or greater. A hardness of an innermost layer of the cover 6 is greater than a surface hardness of the core 4. Preferably, the core is obtained by a rubber composition being crosslinked. The rubber composition includes an acid and/or a salt (d).

    摘要翻译： 高尔夫球2包括球形芯4和覆盖芯4的盖6.盖6包括内盖8和位于内盖8外侧的外盖10.当距离芯的中心点的距离（％） 以曲线图绘出9个点和9个点的硬度，其中9个点是通过以中心点到核心4的表面的区域以核心4的半径的12.5％的间隔分开而获得的， 通过最小二乘法获得的线性近似曲线的R2为0.95或更大。 盖6的最内层的硬度大于芯4的表面硬度。优选地，芯由交联的橡胶组合物获得。 该橡胶组合物包含酸和/或盐（d）。