发明名称 Multi-piece golf ball
摘要 A multi-piece golf ball includes a core having a diameter of 30 to 40 mm, at least one intermediate layer including the outermost layer having a thickness of 0.5 to 2.0 mm, and a cover having a thickness of 1.0 to 3.0 mm. The cover is made from a material obtained by dispersedly blending at least one kind of silicone powder selected from a silicone rubber powder, a silicon resin powder, and a composite powder thereof, in a main resin component containing an ionomer resin in an amount of 50% by weight or more. Dimples of the number of 300 to 550 pieces are formed in the surface of the golf ball in such a manner that a dimple total volume ratio VR is in a range of 0.85% or less. The multi-piece golf ball is excellent in resilience, flight distance characteristic, and feel of hitting.
申请公布号 US6939250(B2) 申请公布日期 2005.09.06
申请号 US20020317985 申请日期 2002.12.13
申请人 BRIDGESTONE SPORTS CO., LTD. 发明人 HAYASHI JUNJI;YAMAGISHI HISASHI;SHIMIZU YASUMASA;ICHIKAWA YASUSHI
分类号 A63B37/00;A63B37/04;A63B37/06;A63B37/12;C08L9/00;C08L23/08;C08L67/00;C08L83/04;(IPC1-7):A63B37/04;A63B37/14 主分类号 A63B37/00
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