发明名称 Golf ball
摘要 A golf ball includes a core, and a cover made from a cover material containing an ionomer resin and also barium sulfate and titanium dioxide added in a total amount ranging from 10 to 25 parts by mass on the basis of 100 parts by mass of the ionomer resin. A flexural amount of the core, measured by applying a load of 980 N thereto, is in a range of 4.0 to 5.5 mm. A ratio of a melt-flow rate to a specific gravity (melt-flow rate/specific gravity) of the cover material is in a range of 1.6 or more. A Shore D hardness of the cover is in a range of 55 to 65.
申请公布号 US6705958(B2) 申请公布日期 2004.03.16
申请号 US20020170592 申请日期 2002.06.14
申请人 BRIDGESTONE SPORTS CO., LTD. 发明人 HAYASHI JUNJI;MASUTANI YUTAKA;YAMAGISHI HISASHI
分类号 A63B37/00;A63B37/12;(IPC1-7):A63B37/06 主分类号 A63B37/00
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