GOLF BALL HAVING MEDIUM POSITIVE GRADIENT QUOTIENT
    5.
    发明申请
    GOLF BALL HAVING MEDIUM POSITIVE GRADIENT QUOTIENT 审中-公开
    高尔夫球具有中等的平面等级

    公开(公告)号:US20170036069A1

    公开(公告)日:2017-02-09

    申请号:US15296298

    申请日:2016-10-18

    Abstract: A golf ball includes a core and a cover. The core has an outer surface, a geometric center, and a soft transition region adjacent to the outer surface. The soft transition region has a thickness of 4 mm or less, includes about 10 to 30% trans-polybutadiene isomer, and has a positive hardness gradient of about 10 Shore C or less. The cover layer has a hardness of about 50 Shore M or greater. The core has a positive hardness gradient of about 10 to 42 Shore C. A secondary gradient quotient, GQ′, from about 2.2 to 9.5, GQ′ being defined by the equation: G ′ + T 10 × COR where G′ is the core positive hardness gradient in Shore C, T is the percent of trans-polybutadiene isomer at the core outer surface, and COR is the coefficient of restitution of the core measured at an incoming velocity of 125 ft/s.

    Abstract translation: 其中G'是肖氏C中的核心正硬度梯度,T是核心外表面处的反式聚丁二烯异构体的百分比,COR是以125ft / s的进入速度测量的芯的还原系数。

    GOLF BALL MULTILAYER CORE HAVING A GRADIENT QUOTIENT
    9.
    发明申请
    GOLF BALL MULTILAYER CORE HAVING A GRADIENT QUOTIENT 有权
    高尔夫球多层次核心

    公开(公告)号:US20160107038A1

    公开(公告)日:2016-04-21

    申请号:US14983787

    申请日:2015-12-30

    Abstract: A golf ball including a core having an inner core having an outer surface and a geometric center; and an outer core layer. The outer core layer has an outer surface and includes a soft transition region. An outer cover layer is formed over the core. The soft transition region has a thickness of up to 4 mm, has about 5 to 15 percent trans-polybutadiene isomer, and has a negative hardness gradient of up to about 10 Shore C. The core has an overall positive hardness gradient of about 5 Shore C to 15 Shore C and has a gradient quotient, GQ, defined by the equation: 1 ≤ G + T 10 × COR ≤ 4 where G is the overall positive hardness gradient in Shore C, T is the percent of trans-polybutadiene isomer at the core outer surface, and COR is the coefficient of restitution measured at an incoming velocity of 125 ft/s.

    Abstract translation: 一种高尔夫球,包括具有具有外表面和几何中心的内芯的芯; 和外芯层。 外芯层具有外表面并且包括软过渡区域。 在芯上形成外覆盖层。 柔软的过渡区域具有高达4毫米的厚度,具有约5至15%的反式聚丁二烯异构体,并且具有高达约10肖氏硬度的负硬度梯度。芯具有约5个肖氏的总体正的硬度梯度 C至15肖氏C,并具有由以下等式定义的梯度商GQ:1≤G+ T 10×COR≤4其中G是肖氏C中的总体正硬度梯度,T是反式聚丁二烯异构体的百分比 核心外表面,COR是以125英尺/秒的进入速度测量的恢复系数。

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