| 发明名称 |
GOLF CLUB SHAFT |
| 摘要 |
An object of the present invention is to provide a golf club shaft having excellent strength. The present invention provides a golf club shaft made of a fiber-reinforced epoxy resin material comprising a cured product of an epoxy resin composition and a reinforcing fiber, wherein the epoxy resin composition comprises at least one selected from the group consisting of a bisphenol A type epoxy resin, a bisphenol F type epoxy resin and a novolac type epoxy resin, and a tetraglycidyl type epoxy resin as an epoxy resin component, and the cured product of the epoxy resin composition has a swelling ratio in a range from 20 mass % to 44 mass % in methyl ethyl ketone. |
| 申请公布号 |
US2016367872(A1) |
申请公布日期 |
2016.12.22 |
| 申请号 |
US201414902097 |
申请日期 |
2014.06.06 |
| 申请人 |
DUNLOP SPORTS CO. LTD. |
发明人 |
NAITO Yasuo;HYODO Takehiko;SHIGA Kazuyoshi;HASEGAWA Hiroshi |
| 分类号 |
A63B53/10;C08J5/24;C08L63/00 |
主分类号 |
A63B53/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A golf club shaft made of a fiber-reinforced epoxy resin material comprising a cured product of an epoxy resin composition and a reinforcing fiber, wherein the epoxy resin composition comprises, as an epoxy resin component,
at least one selected from the group consisting of a bisphenol A type epoxy resin, a bisphenol F type epoxy resin and a novolac type epoxy resin; and a tetraglycidyl type epoxy resin; and the cured product of the epoxy resin composition has a swelling ratio in a range from 20 mass % to 44 mass % in methyl ethyl ketone. |
| 地址 |
Kobe-shi, Hyogo JP |
