发明授权
- 专利标题: Golf ball
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申请号: US12222487申请日: 2008-08-11
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公开(公告)号: US08389607B2公开(公告)日: 2013-03-05
- 发明人: Hirotaka Nakamura , Keiji Ohama
- 申请人: Hirotaka Nakamura , Keiji Ohama
- 申请人地址: JP Kobe
- 专利权人: SRI Sports Limited
- 当前专利权人: SRI Sports Limited
- 当前专利权人地址: JP Kobe
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2007-238934 20070914
- 主分类号: A63B37/12
- IPC分类号: A63B37/12 ; C08L75/08 ; C08K5/3475
摘要:
Golf ball 2 has core 4, cover 6 and paint layer 12. The base polymer of the cover 6 includes a thermoplastic polyurethane elastomer. The cover 6 includes a benzotriazole based ultraviolet ray absorbing agent, a hindered amine light stabilizer and a hindered phenol heat resistance stabilizer. Provided that the molar concentration of the benzotriazole based ultraviolet ray absorbing agent is defined as A; the molar concentration of the hindered amine light stabilizer is defined as B; and the molar concentration of the hindered phenol heat resistance stabilizer is defined as C, the molar ratio (B/A) is 0.01 or greater and 0.5 or less, and the molar ratio [(B+C)/A] is 0.1 or greater and 1.5 or less. Preferably, the hindered amine light stabilizer does not have a hindered phenol group in the molecule. Preferably, the principal component of the elastomer is a reaction product of MDI and polyether polyol.
公开/授权文献
- US20090075758A1 Golf ball 公开/授权日:2009-03-19
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