发明名称 |
Multi-layer core golf ball having opposing hardness gradient with steep gradient outer core layer |
摘要 |
A golf ball comprising an inner core having an outer surface and a geometric center and being formed from a substantially homogenous composition such that the geometric center has a hardness of 56 to 80 Shore C and the outer surface has a hardness of 50 to 75 Shore C. An outer core layer is disposed about the inner core and has an outer surface having a hardness of 85 to 98 Shore C and an inner surface having a hardness of 68 to 78 Shore C and being formed from a second substantially homogenous rubber composition. A cover layer is disposed about the outer core layer. The hardness of the second outer surface is greater than the hardness of the inner surface to define a positive hardness gradient of +7 to +30 Shore C, and the hardness of the first outer surface is lower than the hardness of the geometric center to define a negative hardness gradient of−1 to−15 Shore C. |
申请公布号 |
US8257200(B2) |
申请公布日期 |
2012.09.04 |
申请号 |
US201113195083 |
申请日期 |
2011.08.01 |
申请人 |
SULLIVAN MICHAEL J.;LADD DEREK A.;COMEAU BRIAN;ACUSHNET COMPANY |
发明人 |
SULLIVAN MICHAEL J.;LADD DEREK A.;COMEAU BRIAN |
分类号 |
A63B37/06 |
主分类号 |
A63B37/06 |
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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