| 发明名称 | Golf ball | ||
| 摘要 | An object of the present invention is to provide a golf ball which is excellent in abrasion-resistance and durability. The golf ball of the present invention comprises a cover using a cover composition containing thermoplastic polyurethane (A) and a polyisocyanate mixture (B) in which a urethane prepolymer (b-1a) having at least two isocyanate groups or a polyisocyanate (b-1b) having at least three isocyanate groups is dispersed in a thermoplastic resin (b-2) which does not substantially react with the isocyanate groups. | ||
| 申请公布号 | US9163143(B2) | 申请公布日期 | 2015.10.20 |
| 申请号 | US201213622041 | 申请日期 | 2012.09.18 |
| 申请人 | DUNLOP SPORTS CO. LTD. | 发明人 | Tarao Toshiyuki |
| 分类号 | A63B37/00;A63B37/12;C08L75/04;C08G18/10;C08G18/48;C08G18/75;C08G18/76;C08G18/79 | 主分类号 | A63B37/00 |
| 代理机构 | Birch Stewart Kolasch & Birch, LLP | 代理人 | Birch Stewart Kolasch & Birch, LLP |
| 主权项 | 1. A golf ball comprising a core and a cover, wherein the cover is made from a cover composition containing, as a resin component, a thermoplastic polyurethane (A) and a polyisocyanate mixture (B) in which a polyisocyanate (b-1b) having at least three isocyanate groups is dispersed in a thermoplastic resin (b-2) which does not substantially react with the isocyanate groups, wherein said polyisocyanate mixture (B) containing the polyisocyanate (b-1b) has NCO content (NCO %) of 8.4 mass % to 30.0 mass %. | ||
| 地址 | Kobe-shi JP | ||