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    • 7. 发明专利
    • Multi-piece golf ball comprising low hardness gradient core
    • 多层高尔夫球包含低硬度梯度核心
    • JP2012120846A
    • 2012-06-28
    • JP2011269512
    • 2011-12-09
    • Acushnet Coアクシュネット カンパニーAcushnet Company
    • COMEAU BRIANSULLIVAN MICHAEL JJONES DOUGLAS ELADD DEREK A
    • A63B37/00A63B37/04
    • PROBLEM TO BE SOLVED: To achieve a multi-layer golf ball having single layer core that has a shallow soft-to-hard ("positive") hardness gradient, from the surface to the center.SOLUTION: The golf ball includes a single core formed from a substantially homogenous rubber composition, an inner cover disposed about the core, and an outer cover. The inner cover includes an ionomeric material and has a hardness of about 60 Shore D or greater. The outer cover layer is disposed about the inner cover layer, is formed from a castable polyurea or polyurethane, and has a material hardness of about 60 Shore D or less. The outer surface of the core has a trans content of about 12% or less and a hardness of about 71 to 88 Shore C, the geometric center of the core has a trans content of about 10% or less and a hardness of about 70 to 80 Shore C, and the core surface hardness is greater than the geometric center hardness by about 1 to 10 Shore C to define a shallow positive hardness gradient.
    • 要解决的问题:为了实现从表面到中心具有浅的软硬(“正”)硬度梯度的具有单层芯的多层高尔夫球。 解决方案:高尔夫球包括由基本均匀的橡胶组合物形成的单个芯,围绕芯设置的内盖和外盖。 内盖包括离聚物材料,硬度为约60肖氏D或更高。 外覆盖层围绕内覆盖层设置,由可浇注的聚脲或聚氨酯形成,并且具有约60肖氏D或更低的材料硬度。 芯的外表面的反式含量为约12%或更低,硬度为约71至88肖氏C,芯的几何中心的反式含量为约10%或更低,硬度为约70至 80肖氏C,并且芯表面硬度大于几何中心硬度约1至10肖氏C以限定浅正硬度梯度。 版权所有(C)2012,JPO&INPIT