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    • 2. 发明授权
    • Golf ball cover material and golf ball using the same
    • 高尔夫球盖材料和高尔夫球使用相同
    • US08888611B2
    • 2014-11-18
    • US13210084
    • 2011-08-15
    • Kazuyoshi ShigaToshiyuki TaraoKeiji Ohama
    • Kazuyoshi ShigaToshiyuki TaraoKeiji Ohama
    • A63B37/12A63B37/04C08G18/75A63B37/00C08G18/10C08G18/48
    • A63B37/0023A63B37/0031A63B37/0033C08G18/10C08G18/4854C08G18/758C08G18/3206
    • An object of the present invention is to provide a golf ball which has an increased dry spin rate and wet spin rate on approach shots without sacrificing the processability into the cover. The present invention provides a golf ball cover material having shear loss moduli G1″ (Pa), G2″ (Pa), and G3″ (Pa) that satisfy following equations when measured using a dynamic viscoelasticity measuring apparatus at following conditions. log G1″≦7.09  (1) log G2″≧7.17  (2) log G3″≦7.14  (3) G1″ measuring conditions: shear mode, oscillation frequency: 10 Hz, temperature: 0° C., strain: 0.05%; G2″ measuring conditions: shear mode, oscillation frequency: 10 Hz, temperature: −30° C., strain: 0.05%; and G3″ measuring conditions: shear mode, oscillation frequency: 10 Hz, temperature: 0° C., strain: 5%.
    • 本发明的目的是提供一种高尔夫球,其在接近射击时具有提高的干旋转速率和湿旋转速率,而不牺牲加工到盖中的加工性。 本发明提供了一种具有剪切损耗模量G1“(Pa),G2”(Pa)和G3“(Pa)的高尔夫球覆盖材料,其在以下条件下使用动态粘弹性测量装置测量时满足以下等式。 log G1“≦̸ 7.09(1)log G2”≥7.77(2)log G3“≦̸ 7.14(3)G1”测量条件:剪切模式,振荡频率:10Hz,温度:0℃,应变:0.05 %; G2“测量条件:剪切模式,振荡频率:10Hz,温度:-30℃,应变:0.05%; 和G3“测量条件:剪切模式,振荡频率:10Hz,温度:0℃,应变:5%。
    • 5. 发明申请
    • GOLF BALL
    • 高尔夫球
    • US20130053179A1
    • 2013-02-28
    • US13599502
    • 2012-08-30
    • Toshiyuki TARAOChiemi MikuraKazuhisa Fushihara
    • Toshiyuki TARAOChiemi MikuraKazuhisa Fushihara
    • A63B37/12A63B37/06
    • A63B37/0074A63B37/0003A63B37/0031A63B37/0033A63B37/0061A63B37/0063A63B37/0064A63B37/0065A63B37/0087A63B37/0092A63B2037/0079
    • A golf ball includes a spherical core and a cover covering the spherical core, wherein the cover is formed from a polyurethane composition containing a polyurethane elastomer as a resin component, the polyurethane composition has a shear loss modulus G″ of more than 5.03×106 Pa and 1.17×108 Pa or less when measured in a shear mode using a dynamic viscoelasticity measuring apparatus at the conditions of the temperature of 0° C., and the oscillation frequency of 10 Hz, the golf ball has a hardness distribution that R2 of a linear approximate curve determined by a least-squares method is 0.95 or more, when plotting center hardness (JIS-C) of the spherical core, hardness (JIS-C) measured at intervals of 2.5 mm from the center of the spherical core, surface hardness (JIS-C) of the spherical core, and slab hardness (JIS-C) of the cover versus distances from the center of the spherical core.
    • 高尔夫球包括球形芯和覆盖球形芯的盖,其中盖由含有作为树脂成分的聚氨酯弹性体的聚氨酯组合物形成,该聚氨酯组合物的剪切损耗模量G“大于5.03×10 6 Pa 在温度0℃,振动频率10Hz的条件下,使用动态粘弹性测定装置,在剪切模式下测定为1.17×10 8 Pa以下,高尔夫球的硬度分布为 通过最小二乘法确定的线性近似曲线为0.95以上,在将球状芯的中心硬度(JIS-C),与球形芯的中心间隔2.5mm测定的硬度(JIS-C),表面 球形芯的硬度(JIS-C)和盖的板坯硬度(JIS-C)与球形芯的中心距离。