Invention Grant
- Patent Title: Golf ball
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Application No.: US15067414Application Date: 2016-03-11
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Publication No.: US09757621B2Publication Date: 2017-09-12
- Inventor: Hidetaka Inoue , Toshiyuki Tarao , Mami Tanaka
- Applicant: Dunlop Sports Co. Ltd.
- Applicant Address: JP Kobe-shi, Hyogo
- Assignee: DUNLOP SPORTS CO., LTD.
- Current Assignee: DUNLOP SPORTS CO., LTD.
- Current Assignee Address: JP Kobe-shi, Hyogo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2015-071842 20150331
- Main IPC: A63B37/00
- IPC: A63B37/00 ; C08K5/098 ; C08L77/00

Abstract:
An object of the present invention is to provide a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball comprising a spherical core, a first resin layer and a second resin layer, wherein the first resin layer is formed from a first resin composition containing (A) a polyamide resin, (B) a copolymer and/or a metal ion-neutralized product thereof, and (C) a thermoplastic elastomer, and having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (MPa) to a slab hardness (Shore D hardness) in a range from 3 to 5; and the second resin layer is formed from a second resin composition containing (D) a polyamide resin, and (E) a copolymer and/or a metal ion-neutralized product thereof.
Public/Granted literature
- US20160287943A1 GOLF BALL Public/Granted day:2016-10-06
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