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    • 1. 发明授权
    • Golf ball
    • 高尔夫球
    • US09149687B2
    • 2015-10-06
    • US13080276
    • 2011-04-05
    • Satoko OkabeKazuhiko IsogawaKeiko Matsuhisa
    • Satoko OkabeKazuhiko IsogawaKeiko Matsuhisa
    • A63B37/02A63B37/06A63B37/00C08G63/47C08G63/91C08G63/46
    • A63B37/0038A63B37/0031A63B37/0033A63B37/0035A63B37/0039A63B37/0043A63B37/0045A63B37/0047A63B37/0048A63B37/0049A63B37/0062A63B37/0063A63B37/0065A63B37/0066A63B37/0087A63B37/0091A63B2037/0079C08G63/46C08G63/47C08G63/91
    • An object of the present invention is to provide a golf ball excellent in resilience and durability, with a good moldability of the intermediate layer. The present invention provides a golf ball having a center, a cover, and an intermediate layer disposed between the center and the cover, wherein the intermediate layer is formed from an intermediate layer composition having a flexural modulus ranging from 150 MPa to 450 MPa, a maximum loss factor (tan δ) between −20° C. and 0° C. of 0.08 or less, a rebound resilience of 55% or more, and a slab hardness ranging from 40 to 60 in Shore D hardness, and the intermediate layer composition comprises, as a resin component, 30 mass % to 70 mass % of (A) a modified polyester elastomer having a Shore A hardness of 95 or less; 70 mass % to 30 mass % of (B) a binary ionomer resin having a Shore D hardness of 65 or more, a flexural modulus of 300 MPa or more, and a melt flow rate (190° C., 2.16 kg) of 1.0 g/10 min or more; and 0 mass % to 50 mass % of (C) a thermoplastic resin other than (A) component and (B) component (provided that a total content of (A) component, (B) component, and (C) component is 100 mass %).
    • 本发明的目的是提供一种弹性和耐久性优异的高尔夫球,并且具有良好的中间层成形性。 本发明提供了一种高尔夫球,其具有设置在中心和盖之间的中心,盖和中间层,其中中间层由弯曲模量为150MPa至450MPa的中间层组合物形成, -20℃和0℃之间的最大损耗因子(tanδ)为0.08以下,回弹性为55%以上,板状硬度为肖氏D硬度为40〜60,中间层 作为树脂成分,作为树脂成分,含有30质量%〜70质量%的(A)肖氏A硬度为95以下的改性聚酯弹性体, (B)肖氏D硬度为65以上,弯曲弹性模量为300MPa以上,熔体流动速率(190℃,2.16kg)的二元离聚物树脂为70质量%〜30质量% g / 10分钟以上; 和(A)成分和(B)成分以外的(C)热塑性树脂的0质量%〜50质量%(条件是(A)成分,(B)成分和(C)成分的总含量为100 质量%)。
    • 2. 发明申请
    • GOLF BALL
    • 高尔夫球
    • US20110244986A1
    • 2011-10-06
    • US13080276
    • 2011-04-05
    • Satoko OKABEKazuhiko IsogawaKeiko Matsuhisa
    • Satoko OKABEKazuhiko IsogawaKeiko Matsuhisa
    • A63B37/06A63B37/02
    • A63B37/0038A63B37/0031A63B37/0033A63B37/0035A63B37/0039A63B37/0043A63B37/0045A63B37/0047A63B37/0048A63B37/0049A63B37/0062A63B37/0063A63B37/0065A63B37/0066A63B37/0087A63B37/0091A63B2037/0079C08G63/46C08G63/47C08G63/91
    • An object of the present invention is to provide a golf ball excellent in resilience and durability, with a good moldability of the intermediate layer. The present invention provides a golf ball having a center, a cover, and an intermediate layer disposed between the center and the cover, wherein the intermediate layer is formed from an intermediate layer composition having a flexural modulus ranging from 150 MPa to 450 MPa, a maximum loss factor (tan δ) between −20° C. and 0° C. of 0.08 or less, a rebound resilience of 55% or more, and a slab hardness ranging from 40 to 60 in Shore D hardness, and the intermediate layer composition comprises, as a resin component, 30 mass % to 70 mass % of (A) a modified polyester elastomer having a Shore A hardness of 95 or less; 70 mass % to 30 mass % of (B) a binary ionomer resin having a Shore D hardness of 65 or more, a flexural modulus of 300 MPa or more, and a melt flow rate (190° C., 2.16 kg) of 1.0 g/10 min or more; and 0 mass % to 50 mass % of (C) a thermoplastic resin other than (A) component and (B) component (provided that a total content of (A) component, (B) component, and (C) component is 100 mass %).
    • 本发明的目的是提供一种弹性和耐久性优异的高尔夫球,并且具有良好的中间层成形性。 本发明提供了一种高尔夫球,其具有设置在中心和盖之间的中心,盖和中间层,其中中间层由弯曲模量为150MPa至450MPa的中间层组合物形成, -20℃和0℃之间的最大损耗因子(tanδ)为0.08以下,回弹性为55%以上,板状硬度为肖氏D硬度为40〜60,中间层 作为树脂成分,作为树脂成分,含有30质量%〜70质量%的(A)肖氏A硬度为95以下的改性聚酯弹性体, (B)肖氏D硬度为65以上,弯曲弹性模量为300MPa以上,熔体流动速率(190℃,2.16kg)的二元离聚物树脂为70质量%〜30质量% g / 10分钟以上; 和(A)成分和(B)成分以外的(C)热塑性树脂的0质量%〜50质量%(条件是(A)成分,(B)成分和(C)成分的总含量为100 质量%)。