发明名称 Multi-piece solid golf ball with soft polyurethane cover
摘要 A multi-piece solid golf ball G having a core 1, an envelope layer 2 which encloses the core, an intermediate layer 3 which encloses the envelope layer, and a cover 4 which encloses the intermediate layer 3 and has formed on a surface thereof a plurality of dimples D. The core 1 is formed primarily of a rubber material, the envelope layer 2 is formed primarily of a specific resin mixture, the intermediate layer 3 is formed primarily of a resin material, and the cover 4 is formed primarily of polyurethane. The intermediate layer 3 and the cover 4 have surface hardnesses (Durometer D hardness) which satisfy the relationship: intermediate layer surface hardness > cover surface hardness. The golf ball has an excellent flight performance and controllability, while also having an excellent durability to cracking on repeated impact and an excellent scuff resistance.
申请公布号 GB2438739(A) 申请公布日期 2007.12.05
申请号 GB20070010423 申请日期 2007.05.31
申请人 BRIDGESTONE SPORTS CO.,LTD. 发明人 HIDEO WATANABE;AKIRA KIMURA
分类号 A63B37/00;A63B37/12 主分类号 A63B37/00
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