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    • 92. 发明授权
    • Golf ball core with soft outer transition volume and negative hardness gradient
    • 高尔夫球芯具有柔软的外部过渡体积和负硬度梯度
    • US08414426B2
    • 2013-04-09
    • US13229802
    • 2011-09-12
    • Michael J. SullivanBrian ComeauDouglas S. Goguen
    • Michael J. SullivanBrian ComeauDouglas S. Goguen
    • A63B37/06
    • A63B37/0092A63B37/0063A63B37/0076
    • A golf ball including a unitary core having a volume, an outer surface, a geometric center, and an outermost transition volume adjacent to the outer surface, the core being formed from a substantially homogenous composition; and a cover layer including ionomer, metallocene-catalyzed polymer, polyester, polyamide, non-ionomeric thermoplastic elastomer, copolyether-ester, copolyether-amide, polycarbonate, polybutadiene, polyisoprene, or polystyrene block copolymer. The outermost transition volume is disposed between the core outer surface and the geometric center, the transition volume has an outer portion congruent with the core outer surface, and comprises the outermost 45% of the core volume or less. Both a hardness of the core outer surface and a hardness within the outermost transition volume are less than the hardness of the geometric center to define a negative hardness gradient.
    • 一种高尔夫球,包括具有与外表面相邻的体积,外表面,几何中心和最外侧过渡体积的单一芯体,所述芯部由基本均匀的组成形成; 和包含离聚物,金属茂催化的聚合物,聚酯,聚酰胺,非离聚物热塑性弹性体,共聚醚 - 酯,共聚醚 - 酰胺,聚碳酸酯,聚丁二烯,聚异戊二烯或聚苯乙烯嵌段共聚物的覆盖层。 最外面的过渡体积设置在芯部外表面和几何中心之间,过渡体积具有与芯部外表面一致的外部部分,并且包括核心体积的最外部45%或更小。 芯外表面的硬度和最外过渡体积内的硬度均小于几何中心的硬度,以确定负硬度梯度。