| 发明名称 | Golf ball | ||
| 摘要 | A golf ball of the present invention includes: a core located in the center of the golf ball; a cover surrounding the outside of the core and having plural dimples on the surface thereof; a paint layer surrounding the outside of the cover; and a top coat further surrounding the outside of the paint layer. The paint layer is formed of a material having rubber elasticity. The top coat may have a thickness of at most approximately 60 μm. A material for forming the paint layer has a first loss tangent, a material for forming the cover has a second loss tangent, and a difference Td between the first loss tangent and the second loss tangent may be at least approximately 0.05. | ||
| 申请公布号 | US9050500(B2) | 申请公布日期 | 2015.06.09 |
| 申请号 | US201213410012 | 申请日期 | 2012.03.01 |
| 申请人 | BRIDGESTONE SPORTS CO., LTD. | 发明人 | Komatsu Atsushi;Ozawa Yuichiro;Nasu Hiroshi |
| 分类号 | A63B37/00;A63B37/06;A63B37/08;A63B37/12;A63B37/14;C09D5/00 | 主分类号 | A63B37/00 |
| 代理机构 | Sughrue Mion, PLLC | 代理人 | Sughrue Mion, PLLC |
| 主权项 | 1. A golf ball comprising: a core located in a center of the golf ball; a cover surrounding an outside of the core and having plural dimples on a surface thereof, the cover having a thickness of at most 2 mm; a paint layer surrounding an outside of the cover, the paint layer formed of a material having rubber elasticity and having a first loss tangent (tan δ) of at least 0.25, the paint layer having a thickness of at most 100 μm; and a top coat further surrounding an outside of the paint layer, the top coat having a thickness of at most 60 μm, wherein a material for forming the cover has a second loss tangent, a difference Td between the first loss tangent and the second loss tangent being at least 0.10. | ||
| 地址 | Tokyo JP | ||