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    • 47. 发明授权
    • Golf ball with negative hardness gradient core
    • 高尔夫球具有负硬度梯度核心
    • US07963863B2
    • 2011-06-21
    • US12469258
    • 2009-05-20
    • Michael J. SullivanBrian ComeauDouglas S. GoguenDavid A. Bulpett
    • Michael J. SullivanBrian ComeauDouglas S. GoguenDavid A. Bulpett
    • A63B37/06
    • A63B37/0063A63B37/0062A63B37/0064A63B37/0075A63B37/0076A63B37/0092
    • A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface, the single layer core further comprising an inner core region disposed about the geometric center, an outer core region adjacent the outer surface, and an intermediate core region disposed between the inner and outer core regions and extending radially from about 8 mm to about 18 mm from the geometric center. The single layer core has first, second and third hardness disposed within the inner core region, outer core region, intermediate core region, respectively, wherein the third hardness is greater than the first hardness and the second hardness, and a hardness of the outer surface is substantially the same as or lower than a hardness of the geometric center.
    • 一种高尔夫球,包括单层芯和围绕单层芯设置的覆盖层,所述层芯由基本上均匀的制剂形成并且包括几何中心和外表面,所述单层芯还包括设置在内层芯 围绕所述几何中心,邻近所述外表面的外芯区域以及设置在所述内芯区域和所述外芯区域之间并且从所述几何中心从约8mm至约18mm径向延伸的中间芯区域。 单层芯具有分别设置在内芯区域,外芯区域,中间芯区域内的第一,第二和第三硬度,其中第三硬度大于第一硬度和第二硬度,并且外表面的硬度 与几何中心的硬度基本相同或不足。