发明名称 |
Resin composition for golf ball and golf ball |
摘要 |
The present invention provides resin compositions for golf balls which have excellent flexibility, fluidity, and resilience, and golf balls formed from the resin compositions. The present invention relates to a resin composition for golf balls including a polymer that contains a diene polymer moiety and a carboxylic acid-based moiety wherein carboxyl groups derived from the carboxylic acid-based moiety are neutralized. |
申请公布号 |
US9598522(B2) |
申请公布日期 |
2017.03.21 |
申请号 |
US201414582752 |
申请日期 |
2014.12.24 |
申请人 |
DUNLOP SPORTS CO. LTD. |
发明人 |
Shiga Kazuyoshi;Taguchi Masanori;Shigemitsu Takahiro |
分类号 |
A63B37/00;C08F8/44;C08F8/46;C08F279/02;C08L51/04;C08L23/08;C08F290/04;C08L13/00 |
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, formed from a resin composition for golf balls, comprising:
a polymer that contains a diene polymer moiety and a carboxylic acid-based moiety wherein carboxyl groups derived from the carboxylic acid-based moiety are neutralized, wherein the diene polymer moiety has a cis content of at least 20% by mass, and wherein the resin composition has a melt flow rate (190° C., 2.16 kg) of 1.0 g/10 min or higher, wherein the polymer is obtained by neutralizing (anhydrous) dicarboxyl groups contained in a diene polymer that contains an (anhydrous) dicarboxylic acid grafted thereon and has a 1,4-cis structure content of at least 41% by mass, wherein the polymer has a content of the (anhydrous) dicarboxylic acid of 2 to 30% by mass, a degree of neutralization of the (anhydrous) dicarboxyl groups of 50 to 300%, and a product of the content of the (anhydrous) dicarboxylic acid and the degree of neutralization of the (anhydrous) dicarboxyl groups of 200 to 3000. |
地址 |
Kobe-Shi JP |