发明名称 Multi-piece solid golf ball
摘要 A multi-piece solid golf ball comprising a core, an intermediate layer enclosing the core, and an outer layer enclosing the intermediate layer is characterized in that the intermediate layer is made of a thermoplastic resin composition, the intermediate layer on its surface has a Shore D hardness of at least 57, the intermediate layer has a specific gravity of 1.00-1.30 g/cm<SUP>3</SUP>, the outer layer has a specific gravity of at least 1.00 g/cm<SUP>3</SUP>, the core has a specific gravity of 1.05-1.20 g/cm<SUP>3</SUP>, the intermediate layer and the outer layer have a total gauge of up to 3.3 mm, [(core surface JIS-C hardness)-(core center JIS-C hardness)]>=16, [(intermediate layer surface JIS-C hardness)-(core surface JIS-C hardness)]>=0, and -18<=[(outer layer surface Shore D hardness)-(intermediate layer surface Shore D hardness)]<0.
申请公布号 US6899641(B2) 申请公布日期 2005.05.31
申请号 US20040755360 申请日期 2004.01.13
申请人 BRIDGESTONE SPORTS CO., LTD. 发明人 WATANABE HIDEO
分类号 A63B37/00;A63B37/04;(IPC1-7):A63B37/04;A63B37/06;A63B37/12;A63B37/14 主分类号 A63B37/00
代理机构 代理人
主权项
地址