发明授权
- 专利标题: Thread wound golf ball
- 专利标题(中): 螺纹缠绕高尔夫球
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申请号: US280820申请日: 1994-07-26
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公开(公告)号: US5542663A公开(公告)日: 1996-08-06
- 发明人: Akira Kato , Yoshikazu Yabuki
- 申请人: Akira Kato , Yoshikazu Yabuki
- 申请人地址: JPX Hyogo-ken
- 专利权人: Sumitomo Rubber Industries, Ltd.
- 当前专利权人: Sumitomo Rubber Industries, Ltd.
- 当前专利权人地址: JPX Hyogo-ken
- 优先权: JPX5-189906 19930730
- 主分类号: A63B37/00
- IPC分类号: A63B37/00 ; A63B37/06 ; A63B37/08 ; A63B37/12
摘要:
A thread wound golf ball comprising a solid center, a thread rubber layer provided on the outside of the solid center and a cover for covering the thread rubber layer, wherein said center has a strain of 0.5 to 5 mm when 500 g weight is loaded on the solid center and is composed of an inner rubber portion, and said inner rubber portion has a crosslinked rubber structure, formed from a composition comprising 100 parts by weight of a base rubber and 30 to 500 parts by weight of an oily substance, whereby bleeding of the oily substance is prevented, wherein said oily substance is selected from the group consisting of petroleum compounded oil, plasticizer, rubber substitute, alkylbenzene, liquid rubber and a mixture thereof; and wherein said oil-resistant substance is selected from the group consisting of ionomer resin, acrylonitrile-butadiene rubber, chloroprene rubber, urethane rubber, fluorosilicone rubber and a mixture thereof.