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
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