Invention Grant
- Patent Title: Golf ball
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Application No.: US15260497Application Date: 2016-09-09
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Publication No.: US10376742B2Publication Date: 2019-08-13
- Inventor: Hikaru Nagakura , Kazuyoshi Shiga , Chiemi Mikura , Takahiro Shigemitsu , Ryota Sakamine
- Applicant: SUMITOMO RUBBER INDUSTRIES, 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: JP2015-178224 20150910; JP2015-178225 20150910
- Main IPC: A63B37/02
- IPC: A63B37/02 ; C08K5/09 ; C08K5/098 ; C08L9/00 ; A63B37/00 ; C08K3/30 ; C08K5/092 ; C08K5/14 ; C08K3/22 ; C08K5/372

Abstract:
An object of the present invention is to provide a golf ball having an excellent flight performance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) an unsaturated fatty acid and/or a metal salt thereof excluding an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof, and provided that the rubber composition further contains (f) a metal compound if only an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms is present as (b) the co-crosslinking agent.
Public/Granted literature
- US20170072268A1 GOLF BALL Public/Granted day:2017-03-16
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