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公开(公告)号：US20180126226A1
公开(公告)日：2018-05-10
申请号：US15782069
申请日：2017-10-12
Applicant: Dunlop Sports Co. Ltd.
Inventor： Chiemi MIKURA , Kazuyoshi SHIGA , Hikaru NAGAKURA , Ryota SAKAMINE
CPC classification number: A63B37/0074 , A63B37/003 , A63B37/0031 , A63B37/0051 , A63B37/0063 , A63B37/0092 , A63B37/0096 , C08K5/09
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 a hardness difference D1 (H75−H0) between a hardness H75 at a point located at a distance of 75% of a core radius from a center of the spherical core and a center hardness H0 of the spherical core is 15 or more and 35 or less in Shore C hardness, a hardness difference D2 (Hs−H75) between a surface hardness Hs of the spherical core and the hardness H75 at the point located at the distance of 75% of the core radius from the center of the spherical core is −1 or more and 3.5 or less in Shore C hardness, and a hardness difference D3 ((H0+H75)/2−H37.5) between a hardness of (the center hardness H0 of the spherical core+the hardness H75 at the point located at the distance of 75% of the core radius from the center of the spherical core)/2 and a hardness H37.5 at a point located at a distance of 37.5% of the core radius from the center of the spherical core is 0.5 or more and 6.5 or less in Shore C hardness.
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公开(公告)号：US20140206476A1
公开(公告)日：2014-07-24
申请号：US14158325
申请日：2014-01-17
Applicant: Dunlop Sports Co. Ltd.
Inventor： Ryota SAKAMINE , Chiemi MIKURA , Ayaka SHINDO
IPC: A63B37/00
CPC classification number: A63B37/0051 , A63B37/0007 , A63B37/0018 , A63B37/0054 , A63B37/0062 , A63B37/0063 , A63B37/0074 , A63B37/0075 , A63B37/0076 , A63B37/0092 , A63B37/0096 , A63B2037/0079 , C08K5/1535 , C08K5/45
Abstract: An object of the present invention is to provide a golf ball showing 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) 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 heterocyclic 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.
Abstract translation: 本发明的目的是提供一种在驾驶员镜头上显示低旋转速率的高尔夫球。 本发明提供了一种高尔夫球，其包括球形芯和覆盖球形芯的至少一个覆盖层，其中球形芯由橡胶组合物形成，该橡胶组合物含有（a）基础橡胶，（b）α， 具有3-8个碳原子的羧酸和/或其金属盐作为共交联剂，（c）交联引发剂和（d）具有杂环的羧酸和/或其盐，条件是橡胶 组合物还含有（e）在仅含（b）具有3至8个碳原子的α，bgr-不饱和羧酸作为共交联剂的情况下的金属化合物。
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公开(公告)号：US20130172111A1
公开(公告)日：2013-07-04
申请号：US13728810
申请日：2012-12-27
Applicant: Dunlop Sports Co., Ltd.
Inventor： Ryota SAKAMINE , Chiemi MIKURA , Shun KURIHARA , Ayaka SHINDO
IPC: A63B37/00
CPC classification number: A63B37/0051 , A63B37/0054 , A63B37/0063 , A63B37/0064 , A63B37/0065 , A63B37/0074 , A63B37/0096 , C08K5/09 , C08K5/095 , C08K5/175 , C08K5/37 , C08K5/372 , C08L9/00 , C08L21/00
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.
Abstract translation: 本发明的目的是提供一种在驾驶员镜头上具有低旋转速率的高尔夫球。 本发明提供一种高尔夫球，其包括球形芯和覆盖球形芯的至少一个覆盖层，其中球形芯由橡胶组合物形成，该橡胶组合物含有（a）基础橡胶，（b）α，β-不饱和羧酸 具有3〜8个碳原子和/或其金属盐作为共交联剂，（c）交联引发剂和（d）具有苯环和/或其盐的羧酸，条件是橡胶组合物进一步 在（b）含有3〜8个碳原子的α，β-不饱和羧酸作为共交联剂的情况下，含有（e）金属化合物。
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公开(公告)号：US20140295994A1
公开(公告)日：2014-10-02
申请号：US14228484
申请日：2014-03-28
Applicant: Dunlop Sports Co., Ltd.
Inventor： Ayaka SHINDO , Chiemi MIKURA , Ryota SAKAMINE
IPC: A63B37/00
CPC classification number: A63B37/0051 , A63B37/0007 , A63B37/0018 , A63B37/0062 , A63B37/0063 , A63B37/0064 , A63B37/0065 , A63B37/0074 , A63B37/0075 , A63B37/0076 , A63B37/0092 , A63B37/0096 , A63B2037/0079
Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance 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 specific organic peroxide, and (d) a carboxylic acid and/or a salt thereof, provided that the rubber composition further contains (e) 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.
Abstract translation: 本发明的目的是提供一种在驾驶员镜头上行驶飞行距离很远的高尔夫球。 本发明提供一种高尔夫球，其具有球形芯和覆盖球形芯的至少一个覆盖层，其中球形芯由橡胶组合物形成，该橡胶组合物含有（a）基础橡胶，（b）α， 具有3至8个碳原子的羧酸和/或其金属盐作为共交联剂，（c）特定的有机过氧化物，和（d）羧酸和/或其盐，条件是橡胶组合物进一步 在（b）含有3〜8个碳原子的α，bgr-不饱和羧酸作为共交联剂的情况下，含有（e）金属化合物。
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公开(公告)号：US20140213391A1
公开(公告)日：2014-07-31
申请号：US14167259
申请日：2014-01-29
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Ayaka SHINDO , Chiemi MIKURA , Ryota SAKAMINE
IPC: A63B37/00
CPC classification number: A63B37/0063 , A63B37/0051 , A63B37/0074 , C08K5/37
Abstract: An object of the present invention is to provide a golf ball showing a great flight distance 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 mercaptocarboxylic acid derivative and/or a dithiodicarboxylic acid derivative.
Abstract translation: 本发明的目的是提供一种高尔夫球，其显示驾驶员射击的飞行距离很大。 本发明提供一种高尔夫球，其包括球形芯和覆盖球形芯的至少一个覆盖层，其中球形芯由橡胶组合物形成，所述橡胶组合物含有（a）基础橡胶，（b）α，β-不饱和羧酸 具有3至8个碳原子的酸和/或其金属盐作为共交联剂，（c）交联引发剂和（d）巯基羧酸衍生物和/或二硫代二羧酸衍生物。
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Patent Agency Ranking
公开(公告)号：US20130303307A1
公开(公告)日：2013-11-14
申请号：US13891277
申请日：2013-05-10
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Ryota SAKAMINE , Chiemi MIKURA , Ayaka SHINDO , Yumi KANEMITSU
IPC: A63B37/00
CPC classification number: A63B37/0054 , A63B37/0051 , A63B37/0063 , A63B37/0074 , C08K5/0025 , C08K5/098 , C08K5/14 , C08L21/00
Abstract: 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, and (d) an acid and/or a salt thereof, provided that the rubber composition further contains (e) 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, wherein (d) the acid and/or the salt thereof has a relative solubility parameter to (a) the base rubber and (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or the metal salt thereof ranging from 0.45 to 1.10.
Abstract translation: 本发明提供了一种高尔夫球，其具有球形芯和覆盖球形芯的至少一个覆盖层，其中球形芯由橡胶组合物形成，该橡胶组合物含有（a）基础橡胶，（b）α，β-不饱和羧酸 具有3至8个碳原子的酸和/或其金属盐作为共交联剂，（c）交联引发剂，和（d）酸和/或其盐，条件是橡胶组合物还含有（e ）在仅含有（b）具有3至8个碳原子的α，β-不饱和羧酸作为共交联剂的情况下的金属化合物，其中（d）酸和/或其盐具有相对溶解度 参数为（a）基础橡胶和（b）具有3至8个碳原子的α，β-不饱和羧酸和/或其金属盐的范围为0.45至1.10。
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公开(公告)号：US20170072268A1
公开(公告)日：2017-03-16
申请号：US15260497
申请日：2016-09-09
Applicant: Dunlop Sports Co. Ltd.
Inventor： Hikaru NAGAKURA , Kazuyoshi SHIGA , Chiemi MIKURA , Takahiro SHIGEMITSU , Ryota SAKAMINE
CPC classification number: A63B37/0051 , A63B37/0003 , A63B37/0074 , C08K3/22 , C08K3/30 , C08K5/09 , C08K5/092 , C08K5/098 , C08K5/14 , C08K5/372 , C08K2003/2296 , C08K2003/3045 , C08L9/00
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.
Abstract translation: 本发明的目的是提供一种在驾驶员射击上具有优异飞行性能的高尔夫球。 本发明提供一种高尔夫球，其包括球形芯和覆盖球形芯的至少一个盖，其中球形芯由橡胶组合物形成，该橡胶组合物含有（a）基础橡胶，（b）α，β-不饱和羧酸 具有3至8个碳原子和/或其金属盐作为共交联剂，（c）交联引发剂，和（d）不饱和脂肪酸和/或不含α，β-不饱和羧酸的金属盐 如果仅存在碳原子数为3〜8的α，β-不饱和羧酸作为（b）的金属化合物，则橡胶组合物还含有（f）金属化合物 ）共交联剂。
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公开(公告)号：US20160008666A1
公开(公告)日：2016-01-14
申请号：US14861275
申请日：2015-09-22
Applicant: DUNLOP SPORTS CO., LTD.
Inventor： Ryota SAKAMINE , Chiemi MIKURA , Shun KURIHARA , Ayaka SHINDO
IPC: A63B37/00
CPC classification number: A63B37/0051 , A63B37/0054 , A63B37/0063 , A63B37/0064 , A63B37/0065 , A63B37/0074 , A63B37/0096 , C08K5/09 , C08K5/095 , C08K5/175 , C08K5/37 , C08K5/372 , C08L9/00 , C08L21/00
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.
Abstract translation: 本发明的目的是提供一种在驾驶员镜头上具有低旋转速率的高尔夫球。 本发明提供一种高尔夫球，其包括球形芯和覆盖球形芯的至少一个覆盖层，其中球形芯由橡胶组合物形成，所述橡胶组合物含有（a）基础橡胶，（b）α，β-不饱和羧酸 具有3至8个碳原子的酸和/或其金属盐作为共交联剂，（c）交联引发剂和（d）具有苯环和/或其盐的羧酸，条件是橡胶组合物 在（b）具有3〜8个碳原子的α，bgr-不饱和羧酸作为共交联剂的情况下，还含有（e）金属化合物。
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公开(公告)号：US20130123044A1
公开(公告)日：2013-05-16
申请号：US13676763
申请日：2012-11-14
Applicant: Dunlop Sports Co., Ltd.
Inventor： Chiemi MIKURA , Shun KURIHARA , Ayaka SHINDO , Ryota SAKAMINE
IPC: A63B37/00
CPC classification number: A63B37/0039 , A63B37/0051 , A63B37/0062 , A63B37/0063 , A63B37/0074 , C08K3/22 , C08L21/00 , C08L33/08
Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance 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, (d) a carboxylic acid having 1 to 14 carbon atoms and/or a salt thereof, and (e) a halogen-substituted thiophenol and/or a metal salt thereof as an organic sulfur compound, 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.
Abstract translation: 本发明的目的是提供一种在驾驶员镜头上行驶飞行距离很远的高尔夫球。 本发明提供一种高尔夫球，其包括球形芯和覆盖球形芯的至少一个覆盖层，其中球形芯由橡胶组合物形成，该橡胶组合物含有（a）基础橡胶，（b）α，β-不饱和羧酸 具有3-8个碳原子和/或其金属盐作为共交联剂，（c）交联引发剂，（d）具有1至14个碳原子的羧酸和/或其盐，和（e） 卤素取代的苯硫酚和/或其金属盐作为有机硫化合物，条件是橡胶组合物在仅含（b）α，β-不饱和羧酸的情况下还含有（f）金属化合物，其具有3 8个碳原子作为共交联剂。
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公开(公告)号：US20180117421A1
公开(公告)日：2018-05-03
申请号：US15782577
申请日：2017-10-12
Applicant: Dunlop Sports Co. Ltd.
Inventor： Chiemi MIKURA , Kazuyoshi SHIGA , Hikaru NAGAKURA , Ryota SAKAMINE
CPC classification number: A63B37/0074 , A63B37/003 , A63B37/0031 , A63B37/0051 , A63B37/0063 , A63B37/0096 , C08K5/0025 , C08K5/09 , C08K5/098 , C08K5/14 , C08K2201/014 , C08L9/00
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 a hardness difference D1 (H75−H0) between a hardness H75 at a point radially located at a distance of 75% from a center of the spherical core and a center hardness H0 of the spherical core is 10 or more and 27 or less in Shore C hardness, and a hardness difference D2 (Hs−H75) between a surface hardness Hs of the spherical core and the hardness H75 at the point radially located at the distance of 75% from the center of the spherical core is 0 or more and 6.5 or less in Shore C hardness.
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