Invention Grant
- Patent Title: Golf ball
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Application No.: US15422623Application Date: 2017-02-02
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Publication No.: US10238920B2Publication Date: 2019-03-26
- Inventor: Hidetaka Inoue , Toshiyuki Tarao , Kuniyasu Horiuchi
- Applicant: DUNLOP SPORTS CO. LTD.
- Applicant Address: JP Kobe-Shi, Hyogo
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Kobe-Shi, Hyogo
- Agency: Birch, Stewart, Kolasch & Birch LLP
- Priority: JP2014-232205 20141114
- Main IPC: A63B37/00
- IPC: A63B37/00 ; C09D175/08 ; C09D105/16 ; C08G83/00 ; C08G18/00 ; C08G18/48 ; C08G18/62 ; C08G18/79 ; C08G18/24 ; C08G18/40 ; C08G18/42

Abstract:
An object of the present invention is to provide a golf ball showing increased controllability on approach shots for less than 40 yards and showing excellent shot feeling. In the inventive golf ball, the paint film is formed from a curing type paint composition including: a base material containing a polyrotaxane, and a curing agent containing a polyisocyanate, and wherein the polyrotaxane has a cyclodextrin, a linear molecule included in a cyclic structure of the cyclodextrin in a manner of piercing through the cyclic structure of the cyclodextrin, and a blocking group located at both ends 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.
Public/Granted literature
- US20170144028A1 GOLF BALL Public/Granted day:2017-05-25
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