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.
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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 |
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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