Invention Grant
- Patent Title: Golf ball
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Application No.: US16722978Application Date: 2019-12-20
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Publication No.: US11318353B2Publication Date: 2022-05-03
- Inventor: Atsushi Komatsu
- Applicant: Bridgestone Sports Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Bridgestone Sports Co., Ltd.
- Current Assignee: Bridgestone Sports Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JPJP2018-245206 20181227
- Main IPC: A63B37/06
- IPC: A63B37/06 ; A63B37/00 ; C08L9/06 ; C08L9/00 ; C08L33/02

Abstract:
In a golf ball having a core, a cover and at least one intermediate layer therebetween, the cover is formed of a rubber composition which includes a diene rubber, methacrylic acid, a metal oxide and an organic peroxide. The cover has a specific Poisson's ratio, Shore D hardness and thickness. At least one intermediate layer has a specific Shore D hardness and thickness. This golf ball, even with the use of a rubber cover, compares favorably with balls having conventional resin covers, both in that it can achieve a lower spin rate on shots with a driver (W #1) and thus has an excellent flight performance and also in that it can improve controllability in the short game.
Public/Granted literature
- US20200206572A1 GOLF BALL Public/Granted day:2020-07-02
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