发明申请
- 专利标题: GOLF BALL
- 专利标题(中): 高尔夫球
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申请号: US12880667申请日: 2010-09-13
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公开(公告)号: US20110092315A1公开(公告)日: 2011-04-21
- 发明人: Hirotaka NAKAMURA , Keiji Ohama , Seiichiro Endo
- 申请人: Hirotaka NAKAMURA , Keiji Ohama , Seiichiro Endo
- 优先权: JP2009-237818 20091015
- 主分类号: A63B37/02
- IPC分类号: A63B37/02 ; A63B37/12
摘要:
Golf ball 2 has spherical core 4, surrounding layer 6 situated on the external side of the core 4, mid layer 8 situated on the external side of the surrounding layer 6, cover 10 situated on the external side of the mid layer 8, and paint layer 12 situated on the external side of the cover 10. The mid layer 8 has a thickness Tm of 0.1 mm or greater and 1.2 mm or less. The ratio (Tc/Tm) of the thickness Tc of the cover 10 to the thickness Tm of the mid layer 8 is no greater than 0.50. The cover 10 has a Shore D hardness Hc of no greater than 35. The Shore D hardness Hm of the mid layer 8 is greater than the Shore D hardness Hc of the cover 10. The base material of the surrounding layer 6 is an ionomer resin. The base material of the mid layer 8 is a polyurethane. The base material of the cover 10 is a polyurethane.
公开/授权文献
- US08840493B2 Golf ball 公开/授权日:2014-09-23
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