发明名称 |
Golf ball |
摘要 |
In a golf ball comprising a cover enclosing a core, the cover is formed of a resin blend of (a) a potassium ionomer resin and (b) a magnesium ionomer resin. Both the ionomer resins are ethylene- alpha , beta -unsaturated carboxylic acid copolymers containing 10 to 20% by weight of alpha , beta -unsaturated carboxylic acid, 20 to 70 mol % of the carboxyl group being neutralized with potassium or magnesium ion. The ionomer resins have a melt index of 0.6 to 8 and a Shore D hardness of 55 to 70. Ionomer resins (a) and (b) are blended in a weight ratio of from 85:15 to 20:80. The cover has enhanced durability against hitting at no expense of repulsion upon hitting.
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申请公布号 |
US5605967(A) |
申请公布日期 |
1997.02.25 |
申请号 |
US19950424181 |
申请日期 |
1995.04.19 |
申请人 |
BRIDGESTONE SPORTS CO., LTD. |
发明人 |
EGASHIRA, YOSHINORI;ICHIKAWA, YASUSHI;WATANABE, HIDEO |
分类号 |
A63B37/00;A63B37/12;C08L23/08;C08L23/26;(IPC1-7):A63B37/12;C08L33/02 |
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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