发明名称 |
GOLF BALL |
摘要 |
An object of the present invention is to provide a golf ball having an excellent spin performance on approach shots under a wet condition. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the cover is formed from a cover composition containing (A) a polyurethane and (B) a polyrotaxane as a resin component, and wherein (B) the polyrotaxane has a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group. |
申请公布号 |
US2017121524(A1) |
申请公布日期 |
2017.05.04 |
申请号 |
US201615337825 |
申请日期 |
2016.10.28 |
申请人 |
Dunlop Sports Co. Ltd. |
发明人 |
TANAKA Mami;TARAO Toshiyuki |
分类号 |
C08L75/04;C08L9/00;C08L33/02;A63B37/00 |
主分类号 |
C08L75/04 |
代理机构 |
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代理人 |
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主权项 |
1. A golf ball comprising a spherical core and a cover covering the spherical core, wherein the cover is formed from a cover composition containing (A) a polyurethane and (B) a polyrotaxane as a resin component, and wherein (B) the polyrotaxane has a cyclodextrin, a linear molecule piercing through a cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —O—C3H6—O— group. |
地址 |
Kobe-shi JP |