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    • 1. 发明授权
    • Golf ball
    • 高尔夫球
    • US08840493B2
    • 2014-09-23
    • US12880667
    • 2010-09-13
    • Hirotaka NakamuraKeiji OhamaSeiichiro Endo
    • Hirotaka NakamuraKeiji OhamaSeiichiro Endo
    • A63B37/06A63B37/00
    • A63B37/0092A63B37/0022A63B37/0031A63B37/0033A63B37/0043A63B37/0045A63B37/0062A63B37/0063A63B37/0076
    • Golf ball 2 has spherical core 4, surrounding layer 6 situated on the external side of the core 4, mid layer 8 situated on the external side of the surrounding layer 6, cover 10 situated on the external side of the mid layer 8, and paint layer 12 situated on the external side of the cover 10. The mid layer 8 has a thickness Tm of 0.1 mm or greater and 1.2 mm or less. The ratio (Tc/Tm) of the thickness Tc of the cover 10 to the thickness Tm of the mid layer 8 is no greater than 0.50. The cover 10 has a Shore D hardness Hc of no greater than 35. The Shore D hardness Hm of the mid layer 8 is greater than the Shore D hardness Hc of the cover 10. The base material of the surrounding layer 6 is an ionomer resin. The base material of the mid layer 8 is a polyurethane. The base material of the cover 10 is a polyurethane.
    • 高尔夫球2具有球形芯4,位于铁芯4的外侧的周围层6,位于周围层6的外侧的中间层8,位于中间层8的外侧的盖10和涂料 层12位于盖10的外侧。中间层8的厚度Tm为0.1mm以上且1.2mm以下。 盖10的厚度Tc与中间层8的厚度Tm的比(Tc / Tm)不大于0.50。 盖10的肖氏D硬度Hc不大于35.中间层8的肖氏D硬度Hm大于盖10的肖氏D硬度Hc。周围层6的基材是离聚物树脂 。 中间层8的基材是聚氨酯。 盖10的基材是聚氨酯。
    • 3. 发明授权
    • Golf ball
    • 高尔夫球
    • US08262508B2
    • 2012-09-11
    • US12508294
    • 2009-07-23
    • Hirotaka NakamuraKeiji Ohama
    • Hirotaka NakamuraKeiji Ohama
    • A63B37/06
    • A63B37/0092A63B37/0031A63B37/0038A63B37/0043A63B37/0044A63B37/0045A63B37/005A63B37/0056A63B37/0062A63B37/0063A63B37/0064A63B37/0076
    • A golf ball 2 has a hollow center 8, a mid layer 10, an inner cover 12 and an outer cover 14. The center 8 is formed by crosslinking a rubber composition. The rubber composition contains a natural rubber as a base polymer. The rubber composition contains sulfur. The mid layer 10 is formed by crosslinking a rubber composition. This rubber composition includes butadiene as a principal component of the base polymer. The center 8 has an inside diameter of 2 mm or greater and 13 mm or less. The center 8 has an outside diameter of 5 mm or greater and 15 mm or less. The center 8 has a surface JIS-C hardness H2 of 25 or greater and 55 or less. A difference (H4−H3) between a surface JIS-C hardness H4 of the mid layer 10 and a JIS-C hardness H3 of an innermost part of the mid layer is equal to or greater than 10.
    • 高尔夫球2具有中空中心8,中间层10,内盖12和外盖14.中心8通过交联橡胶组合物形成。 橡胶组合物含有作为基础聚合物的天然橡胶。 橡胶组合物含有硫。 中间层10通过使橡胶组合物交联而形成。 该橡胶组合物包括作为基础聚合物的主要成分的丁二烯。 中心8的内径为2mm以上且13mm以下。 中心8的外径为5mm以上且15mm以下。 中心部8的表面JIS-C硬度H 2为25以上且55以下。 中间层10的表面JIS-C硬度H4与中间层的最内部的JIS-C硬度H3之间的差(H4-H3)等于或大于10。
    • 6. 发明申请
    • GOLF BALL
    • 高尔夫球
    • US20100035704A1
    • 2010-02-11
    • US12490847
    • 2009-06-24
    • Hirotaka NAKAMURAKeiji OhamaKazuhiko Isogawa
    • Hirotaka NAKAMURAKeiji OhamaKazuhiko Isogawa
    • A63B37/02
    • A63B37/02A63B37/0003A63B37/0039A63B37/0043A63B37/0045A63B37/0051A63B37/0062A63B37/0064
    • A golf ball 2 has a core 4, an inner cover 6 positioned outside this core 4 and an outer cover 8 positioned outside the inner cover 6. The core 4 has a spherical center 10 and a mid layer 12 positioned outside this center 10. The center 10 is formed by crosslinking a rubber composition. The mid layer 12 is formed by crosslinking a rubber composition. The inner cover 6 is made of a thermoplastic resin composition. The outer cover 8 is made of a thermoplastic resin composition. The center 10 has a diameter of 1 mm or greater and 15 mm or less. The center 10 has a central point having JIS-C hardness H1 of 20 or greater and 50 or less. A difference (H4−H3) between a hardness H4 of a surface of the core and a hardness H3 of an innermost part of the mid layer is equal to or greater than 10. A hardness H5 of the inner cover is smaller than a hardness H6 of the outer cover.
    • 高尔夫球2具有芯部4,位于该芯部4外部的内部盖6和位于内部盖6外侧的外部盖8.芯部4具有球形中心10和位于该中心10外部的中间层12。 中心10通过交联橡胶组合物形成。 中间层12通过交联橡胶组合物形成。 内盖6由热塑性树脂组合物制成。 外盖8由热塑性树脂组合物制成。 中心部10的直径为1mm以上且15mm以下。 中心部10具有JIS-C硬度H1为20以上且50以下的中心点。 芯的表面的硬度H4与中层的最内部的硬度H3之间的差(H4-H3)等于或大于10.内盖的硬度H5小于硬度H6 的外盖。
    • 7. 发明申请
    • GOLF BALL
    • 高尔夫球
    • US20090270202A1
    • 2009-10-29
    • US12420883
    • 2009-04-09
    • Hirotaka NAKAMURAKeiji Ohama
    • Hirotaka NAKAMURAKeiji Ohama
    • A63B37/00
    • C08K5/14A63B37/0044A63B37/0063A63B37/0064A63B37/0092C08K5/098C08L9/00
    • A golf ball 2 has a spherical core 4 and a cover 6 positioned outside this core 4. The core 4 has a spherical center 8 and a mid layer 10 positioned outside this center 8. The center 8 is formed by crosslinking a rubber composition. A base rubber of the rubber composition contains polybutadiene as a principal component. The rubber composition contains sulfur as a crosslinking agent. The center 8 has a diameter of 1 mm or greater and 15 mm or less. The center 8 has a central hardness H1 of 20 or greater and 50 or less. A difference (H4−H3) between a hardness H4 of a surface of the mid layer 10 and a hardness of an innermost part thereof is equal to or greater than 10.
    • 高尔夫球2具有球形芯4和位于该芯4之外的盖6.芯4具有球形中心8和位于该中心8外部的中间层10.中心8通过使橡胶组合物交联而形成。 橡胶组合物的基础橡胶含有聚丁二烯作为主要成分。 橡胶组合物含有硫作为交联剂。 中心8的直径为1mm以上且15mm以下。 中心8的中心硬度H1为20以上且50以下。 中间层10的表面的硬度H4与其最内部的硬度之差(H4-H3)等于或大于10。
    • 8. 发明申请
    • Golf ball
    • 高尔夫球
    • US20090075758A1
    • 2009-03-19
    • US12222487
    • 2008-08-11
    • Hirotaka NakamuraKeiji Ohama
    • Hirotaka NakamuraKeiji Ohama
    • A63B37/12
    • A63B37/0023A63B37/0022
    • Golf ball 2 has core 4, cover 6 and paint layer 12. The base polymer of the cover 6 includes a thermoplastic polyurethane elastomer. The cover 6 includes a benzotriazole based ultraviolet ray absorbing agent, a hindered amine light stabilizer and a hindered phenol heat resistance stabilizer. Provided that the molar concentration of the benzotriazole based ultraviolet ray absorbing agent is defined as A; the molar concentration of the hindered amine light stabilizer is defined as B; and the molar concentration of the hindered phenol heat resistance stabilizer is defined as C, the molar ratio (B/A) is 0.01 or greater and 0.5 or less, and the molar ratio [(B+C)/A] is 0.1 or greater and 1.5 or less. Preferably, the hindered amine light stabilizer does not have a hindered phenol group in the molecule. Preferably, the principal component of the elastomer is a reaction product of MDI and polyether polyol.
    • 高尔夫球2具有芯4,盖6和涂料层12.盖6的基础聚合物包括热塑性聚氨酯弹性体。 盖6包括苯并三唑类紫外线吸收剂,受阻胺光稳定剂和受阻酚耐热稳定剂。 假设苯并三唑类紫外线吸收剂的摩尔浓度定义为A; 受阻胺光稳定剂的摩尔浓度定义为B; 受阻酚耐热稳定剂的摩尔浓度定义为C,摩尔比(B / A)为0.01以上且0.5以下,摩尔比[(B + C)/ A]为0.1以上 和1.5以下。 受阻胺光稳定剂优选在分子中不具有受阻酚基。 优选地,弹性体的主要成分是MDI和聚醚多元醇的反应产物。