Invention Grant
- Patent Title: Golf ball
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Application No.: US15620000Application Date: 2017-06-12
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Publication No.: US10143894B2Publication Date: 2018-12-04
- Inventor: Hikaru Nagakura , Kazuyoshi Shiga , Chiemi Mikura , Takahiro Shigemitsu
- 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: JP2016-130633 20160630; JP2016-231157 20161129
- Main IPC: A63B37/04
- IPC: A63B37/04 ; A63B37/06 ; A63B37/00 ; C08L21/00

Abstract:
An object of the present invention is to provide a golf ball having excellent flying performance on driver shots. The present invention provides a golf ball having a spherical core and at least one cover layer 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, (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 (e) a saturated fatty acid and/or a metal salt thereof, provided that the rubber composition further contains (f) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent.
Public/Granted literature
- US20180001153A1 GOLF BALL Public/Granted day:2018-01-04
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