发明名称 |
Golf ball polyurethane composition and golf ball |
摘要 |
An object of the present invention is to provide a golf ball polyurethane composition excellent in resilience. Another object of the present invention is to provide a golf ball excellent in a shot feeling and resilience. The present invention provides a golf ball polyurethane composition comprising, as a resin component, a polyurethane elastomer including a polyisocyanate with one alicyclic hydrocarbon structure having 3 or more carbon atoms as a constituting component, and having a spin-lattice relaxation time (T1) of 13C nucleus of 8.9 seconds or less measured by a High resolution solid state nuclear magnetic resonance (NMR) method. |
申请公布号 |
US9352192(B2) |
申请公布日期 |
2016.05.31 |
申请号 |
US201213592456 |
申请日期 |
2012.08.23 |
申请人 |
DUNLOP SPORTS CO., LTD. |
发明人 |
Shiga Kazuyoshi;Murakami Ryo;Tarao Toshiyuki;Shigemitsu Takahiro |
分类号 |
A63B37/00;C08G18/75;C08G18/66;C08G18/48;C08G18/10 |
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 constituting member formed from a golf ball polyurethane composition comprising, as a resin component, a polyurethane elastomer comprising 1,4-bis(isocyanatomethyl)cyclohexane containing a trans isomer in a content of 77 mole % or more and a polyol component having a number average molecular weight ranging from 2,000 to 3,000, and having a spin-lattice relaxation time (T1) of 13C nucleus of 8.9 seconds or less measured by a High resolution solid state nuclear magnetic resonance (NMR) method, and wherein the golf ball polyurethane composition has a slab hardness ranging from 18 to 22 in Shore D hardness. |
地址 |
Kobe-shi JP |