发明名称 |
MULTI-PIECE SOLID GOLF BALL |
摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a golf ball which is excellent in the spin characteristic and favorable in the carrying characteristic, feeling, and durability and further, high in productibity. SOLUTION: In a multi-piece solid golf ball in which a solid core is covered with two or more cover layers, one of the cover layers is chiefly formed of thermoplastic polyurethane elastomer having 60-98 in JIS A hardness and 40% or higher modulus of resilient elasticity. Tanδat 23 deg.C in the measurement of viscoelasticity of thermoplastic polyurethane elastomer is designed to be 0.01-0.25 and the tensile breaking stress is designed to be 300 kg/cm<2> or larger.</p> |
申请公布号 |
JPH11253580(A) |
申请公布日期 |
1999.09.21 |
申请号 |
JP19980085028 |
申请日期 |
1998.03.16 |
申请人 |
BRIDGESTONE SPORTS CO LTD |
发明人 |
HIGUCHI HIROSHI;ICHIKAWA YASUSHI;YAMAGISHI HISASHI |
分类号 |
A63B37/00;A63B37/04;A63B37/12;C08L21/00;C08L75/04;(IPC1-7):A63B37/00 |
主分类号 |
A63B37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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