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    • 65. 发明申请
    • GOLF BALL WITH SINGLE LAYER CORE HAVING SPECIFIC REGIONS OF VARYING HARDNESS
    • 具有单层硬度的高尔夫球具有变化硬度的特定区域
    • US20100331116A1
    • 2010-12-30
    • US12492514
    • 2009-06-26
    • Michael J. SullivanBrian ComeauDouglas S. GoguenDavid A. Bulpett
    • Michael J. SullivanBrian ComeauDouglas S. GoguenDavid A. Bulpett
    • A63B37/00
    • A63B37/0063A63B37/0062A63B37/0064A63B37/0074A63B37/0075
    • A golf ball comprising a single layer core and a cover layer disposed about the single layer core, the single layer core being formed from a substantially homogenous formulation and comprising a geometric center and an outer surface wherein an inner core region is disposed about the geometric center, an outer core region is adjacent the outer surface, and an intermediate core region is disposed between the inner and outer core regions and extends from at least about 2 mm radially from the geometric center to at least about 2 mm from the outer surface. The inner core region has a first hardness (IC1h), the outer core region has a second hardness (OC2h), the intermediate core region has third and fourth hardnesses (IMC3h) and (IMC4h), respectively, such that the third hardness is less than the first and second hardnesses, represented by the relationships (IMC3h) (IC1h) and (IMC4h)>(OC2h), and hardness of the outer surface (OSh) is greater than a hardness of the geometric center (GCh), represented by the relationship (OSh)>(GCh) to define a positive hardness gradient.
    • 一种高尔夫球,包括单层芯和围绕单层芯设置的覆盖层,所述单层芯由基本均匀的配方形成并且包括几何中心和外表面,其中内芯区围绕几何中心设置 外芯区域邻近外表面,并且中间芯区域设置在内芯区域和外芯区域之间,并且从几何中心至少约2毫米从外表面延伸至至少约2mm。 内芯区域具有第一硬度(IC1h),外芯区域具有第二硬度(OC2h),中间芯区域分别具有第三和第四硬度(IMC3h)和(IMC4h),使得第三硬度较小 (IMC3h)<(IC1h)和(IMC3h)<(OC2h)表示的第一和第二硬度,第四硬度大于第一和第二硬度,由关系式(IMC4h)>(IC1h )和(IMC4h)>(OC2h),并且外表面(OSh)的硬度大于由关系式(OSh)>(GCh)表示的几何中心的硬度(GCh),以限定正硬度梯度。
    • 69. 发明申请
    • MULTILAYER CORE GOLF BALL HAVING HARDNESS GRADIENT WITHIN AND BETWEEN EACH CORE LAYER
    • US20100273577A1
    • 2010-10-28
    • US12635337
    • 2009-12-10
    • Michael J. SullivanBrian ComeauDouglas S. GoguenDavid A. Bulpett
    • Michael J. SullivanBrian ComeauDouglas S. GoguenDavid A. Bulpett
    • A63B37/02
    • A63B37/0092A63B37/0044A63B37/0045A63B37/0062A63B37/0063A63B37/0064A63B37/0075A63B37/0076
    • The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next. In a first embodiment, the golf ball comprises a two layer core and a cover disposed about the two layer core. The two layer core comprises an inner core layer and an outer core layer disposed about the inner core layer. The inner core layer comprises a geometric center and a first outer surface. The inner core layer is formed from a substantially homogenous formulation, comprises a diameter of about 30 mm or lower, and has a plurality of hardnesses of from about 50 Shore C to about 80 Shore C. The geometric center comprises a first hardness and the first outer surface comprises a second hardness, wherein the first hardness is greater than the second hardness to define a negative hardness gradient about 20 Shore C or less. The outer core layer comprises an inner surface and a second outer surface. The outer core layer is formed from a substantially homogenous formulation, comprises a thickness of about 10 mm or lower, and has a plurality of hardnesses of from about 45 Shore C to about 65 Shore C. The inner surface comprises a third hardness and the second outer surface comprises a fourth hardness, wherein the fourth hardness is greater than the third hardness. The outer core layer further comprises a fifth hardness disposed between the inner surface and the second outer surface in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, wherein the fifth hardness is less than the third hardness and the fourth hardness. Finally, the fourth hardness is less than the first hardness to define a two layer core having a negative hardness gradient of no greater than about 20 Shore C. In a second embodiment, the dual layer core differs from that of the first embodiment at least in that: The outer core has a plurality of hardnesses of from about 50 Shore C to about 80 Shore C, the first hardness is greater than the second hardness to define a negative hardness gradient about 23 Shore C or less; there is no fifth hardness; and the fourth hardness is similar to the first hardness. The present invention is also directed to a golf ball having certain Shore D hardnesses as disclosed herein.