| 发明名称 |
GOLF BALL MANUFACTURING METHOD |
| 摘要 |
This invention provides a method of manufacturing a golf ball composed of a core encased by a cover of at least one layer using an injection mold. The method includes the step of using, as a cover-forming material, a resin composition which is composed primarily of a thermoplastic polyurethane material and includes a lubricant composed primarily of a montanic acid ester, and also controlling the mold temperature of the injection mold within the range of 30 to 60° C.; and the step of injection-molding the resin composition over the core with the injection mold controlled to the foregoing mold temperature. |
| 申请公布号 |
US2014265022(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201313795772 |
申请日期 |
2013.03.12 |
| 申请人 |
BRIDGESTONE SPORTS CO., LTD. |
发明人 |
MOCHIZUKI Katsunobu;NAGASAWA Hiroyuki |
| 分类号 |
B29C67/24 |
主分类号 |
B29C67/24 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of manufacturing a golf ball composed of a core encased by a cover of at least one layer using an injection mold, which method comprises the steps of:
using, as a cover-forming material, a resin composition which is composed primarily of a thermoplastic polyurethane material and includes a lubricant composed primarily of a montanic acid ester, and also controlling the mold temperature of the injection mold within the range of 30 to 60° C.; and injection-molding the resin composition over the core with the injection mold controlled to said mold temperature. |
| 地址 |
Tokyo JP |
