Invention Grant
- Patent Title: Golf ball
- Patent Title (中): 高尔夫球
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Application No.: US13728810Application Date: 2012-12-27
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Publication No.: US09174092B2Publication Date: 2015-11-03
- Inventor: Ryota Sakamine , Chiemi Mikura , Shun Kurihara , Ayaka Shindo
- Applicant: Dunlop Sports Co., Ltd.
- Applicant Address: JP Kobe-shi
- Assignee: DUNLOP SPORTS CO. LTD.
- Current Assignee: DUNLOP SPORTS CO. LTD.
- Current Assignee Address: JP Kobe-shi
- Agency: Birch Stewart Kolasch & Birch, LLP
- Priority: JP2011-289985 20111228; JP2012-166101 20120726
- Main IPC: A63B37/06
- IPC: A63B37/06 ; C08K5/18 ; C08K5/09 ; A63B37/00 ; C08K5/17 ; C08K5/37 ; C08K5/372 ; C08K5/095

Abstract:
An object of the present invention is to provide a golf ball having a low spin rate on driver shots. The present invention provides a golf ball comprising 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) 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) a carboxylic acid having a benzene ring and/or a salt thereof, provided that the rubber composition further contains (e) a metal compound in 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
- US20130172111A1 GOLF BALL Public/Granted day:2013-07-04
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