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公开(公告)号：US09873023B2
公开(公告)日：2018-01-23
申请号：US15223591
申请日：2016-07-29
Applicant: Dunlop Sports Co. Ltd.
Inventor： Ryota Sakamine , Hikaru Nagakura , Kazuyoshi Shiga , Takahiro Shigemitsu
CPC classification number: A63B37/0061 , A63B37/0051 , A63B37/006 , A63B37/0062 , A63B37/0063 , A63B37/0065 , A63B37/0074 , A63B37/02 , A63B37/04 , A63B37/06
Abstract: An object of the present invention is to provide a golf ball having an excellent initial velocity when being hit at a head speed of 50 m/sec and an improved initial velocity when being hit at a head speed of 40 m/sec. 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 core rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator and (x) a crosslinked rubber powder, and (x) the crosslinked rubber powder is formed from a rubber composition containing (a1) a base rubber, (b1) a co-crosslinking agent, (c1) a crosslinking initiator and (r) a resin component.
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公开(公告)号：US09840058B2
公开(公告)日：2017-12-12
申请号：US14439582
申请日：2013-10-31
Applicant: DUNLOP SPORTS CO., LTD.
Inventor： Hiromasa Tsunashima , Yasuo Naito , Kazuyoshi Shiga
CPC classification number: B32B1/08 , A63B49/10 , A63B53/10 , A63B2209/02 , B32B5/26 , B32B2260/023 , B32B2260/046 , B32B2262/106 , B32B2307/51 , B32B2307/54 , B32B2597/00 , C08J5/24 , C08J2363/02 , C08J2429/14 , C08J2463/02 , C08J2463/04
Abstract: An object of the present invention is to provide a novel fiber-reinforced epoxy resin material having improved strength. The fiber-reinforced epoxy resin material of the present invention comprises a cured product of an epoxy resin composition and a reinforcing fiber, wherein the epoxy resin composition comprises a novolac type epoxy resin as an epoxy resin component, and the cured product of the epoxy resin composition has a swelling ratio in a range from 20 mass % to 44 mass % in methyl ethyl ketone.
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公开(公告)号：US20160184641A1
公开(公告)日：2016-06-30
申请号：US14981442
申请日：2015-12-28
Applicant: Dunlop Sports Co., Ltd.
Inventor： Kazuyoshi Shiga , Hiroshi Tadaoka , Masanori Taguchi , Takahiro Shigemitsu
CPC classification number: A63B37/0003 , A63B37/0038 , C08K3/22 , C08K5/09 , C08K2003/2224 , C08L23/0876 , C08L23/0869 , C08K5/19 , C08K5/175
Abstract: An object of the present invention is to provide a golf ball resin composition excellent in resilience. Another object of the present invention is to provide a golf ball excellent in rebound resilience and shot feeling. The present invention provides a golf ball resin composition comprising: (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer, (a-2) a binary ionomer resin, (a-3) a ternary copolymer, and (a-4) a ternary ionomer resin, (B) a saturated fatty acid, and (C) an unsaturated fatty acid, wherein a total content of (B) the saturated fatty acid and (C) the unsaturated fatty acid ranges from 100 parts by mass to 200 parts by mass with respect to 100 parts by mass of (A) the resin component.
Abstract translation: 本发明的目的是提供一种弹性优异的高尔夫球树脂组合物。 本发明的另一个目的是提供一种回弹性和射击感优异的高尔夫球。 本发明提供一种高尔夫球树脂组合物，其包含：（A）至少一种选自（a-1）二元共聚物，（a-2）二元离聚物树脂，（a-3）a 三元共聚物和（a-4）三元离聚物树脂，（B）饱和脂肪酸和（C）不饱和脂肪酸，其中（B）饱和脂肪酸和（C）不饱和脂肪酸的总含量 相对于（A）树脂成分100质量份，酸的范围为100质量份〜200质量份。
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公开(公告)号：US09353199B2
公开(公告)日：2016-05-31
申请号：US13728644
申请日：2012-12-27
Applicant: DUNLOP SPORTS CO., LTD.
Inventor： Kazuyoshi Shiga , Ryo Murakami , Takahiro Shigemitsu
CPC classification number: C08F22/02 , A63B37/0051 , A63B37/0054 , A63B37/0059 , A63B37/006 , A63B37/0073 , C08K5/098
Abstract: An object of the present invention is to provide a golf ball excellent in a shot feeling and resilience. The present invention provides a golf ball resin composition comprising (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-2) an ionomer resin consisting of a metal ion-neutralized product of the binary copolymer, (a-3) a ternary copolymer composed of the binary copolymer components and an α,β-unsaturated carboxylic acid ester, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of the ternary copolymer components; and (B) a basic metal salt of a fatty acid, and having a spin-lattice relaxation time (T1) of 13C nucleus of 5.56 seconds or shorter measured by a High resolution solid state nuclear magnetic resonance (NMR) method.
Abstract translation: 本发明的目的在于提供一种射击感和弹性优异的高尔夫球。 本发明提供一种高尔夫球树脂组合物，其包含（A）至少一种选自（a-1）由烯烃组成的二元共聚物和具有3至8个碳原子的α，β-不饱和羧酸的树脂组分 碳原子，（a-2）由二元共聚物的金属离子中和产物组成的离聚物树脂，（a-3）由二元共聚物组分和α，β-不饱和羧酸酯组成的三元共聚物， 和（a-4）由三元共聚物组分的金属离子中和产物组成的离聚物树脂; 和（B）脂肪酸的碱金属盐，通过高分辨率固态核磁共振（NMR）法测定的具有5.56秒或更短的13C核的自旋晶格弛豫时间（T1）为5.56秒或更短。
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公开(公告)号：US10213655B2
公开(公告)日：2019-02-26
申请号：US15223778
申请日：2016-07-29
Applicant: Dunlop Sports Co. Ltd.
Inventor： Hikaru Nagakura , Kazuyoshi Shiga , Ryota Sakamine , Takahiro Shigemitsu
Abstract: An object of the present invention is to provide a golf ball having an excellent initial velocity when being hit at a head speed of 50 m/sec and an improved initial velocity when being hit at a head speed of 40 m/sec. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the golf ball has a rebound equivalence energy ratio (R40) ranging from 65.50% to 99.0% at a deformation amount of 7%, and a rebound equivalence energy ratio (R50) ranging from 20.0% to 70.0% at a deformation amount of 19%, in a compression test (measurement temperature: −70° C., compression speed: 30 mm/min) applying a load to the golf ball along a radial direction of the golf ball.
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Patent Agency Ranking
公开(公告)号：US10099089B2
公开(公告)日：2018-10-16
申请号：US15354464
申请日：2016-11-17
Applicant: Dunlop Sports Co., Ltd.
Inventor： Kazuyoshi Shiga , Masanori Taguchi , Takahiro Shigemitsu , Shoichi Kutsumizu , Yohei Miwa
Abstract: An object of the present invention is to provide a golf ball resin composition having an excellent rebound resilience. The present invention provides a golf ball resin composition containing an ionomer resin as a resin component. In a DSC measurement (a measuring atmosphere: a nitrogen atmosphere, a measuring temperature range: from −50° C. to 150° C., and a temperature rising rate: 10° C./min) of the golf ball resin composition of the first embodiment, a first endothermic peak and a second endothermic peak appear, and a peak top temperature (Ti) of the first endothermic peak is equal to or lower than a peak top temperature (Tm) of the second endothermic peak and the peak top temperature (Ti) ranges from 60° C. to 70° C.
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公开(公告)号：US09849344B2
公开(公告)日：2017-12-26
申请号：US15229876
申请日：2016-08-05
Applicant: Dunlop Sports Co. Ltd.
Inventor： Ryota Sakamine , Kazuyoshi Shiga , Hikaru Nagakura , Takahiro Shigemitsu
CPC classification number: A63B37/0087 , A63B37/0024 , A63B37/0031 , A63B37/0037 , A63B37/0039 , A63B37/0043 , A63B37/0049 , A63B37/0051 , A63B37/0062 , A63B37/0063 , A63B37/0065 , A63B37/0074 , A63B37/0075 , A63B37/0077 , A63B2037/0079 , A63B2225/02 , C08K5/0025 , C08K5/098 , G01B5/0023
Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the golf ball has a ratio (t2/t1) of a time (t2) to a time (t1) of 1.05 or more in a hitting test using a driver (at a head speed of 40 m/sec), wherein the time (t1) is a time taken from a moment that the driver begins to contact with the golf ball to a moment that the golf ball reaches a maximum deformation amount, and the time (t2) is a time taken from the moment that the golf ball reaches the maximum deformation amount to a moment that the golf ball leaves the driver.
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公开(公告)号：US09586113B2
公开(公告)日：2017-03-07
申请号：US14928311
申请日：2015-10-30
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Sho Goji , Chiemi Mikura , Kazuyoshi Shiga , Kuniyasu Horiuchi , Toshiyuki Tarao , Hidetaka Inoue , Hitoshi Oyama , Hiroshi Hasegawa
CPC classification number: A63B60/08 , A63B53/14 , C08K3/04 , C08K3/06 , C08K3/22 , C08K3/36 , C08K5/09 , C08K5/13 , C08K5/14 , C08K5/31 , C08K5/40 , C08K5/44 , C08K5/47 , C08L7/00 , C08L15/005 , C08L21/00 , C08L23/16 , C08L91/00
Abstract: An object of the present invention is to provide a golf club grip comprising a layer containing a polar rubber and a layer containing a nonpolar rubber, and excellent in tensile strength. The present invention provides a golf club grip comprising a polar rubber layer and a nonpolar rubber layer, wherein the polar rubber layer is formed from a rubber composition containing a base rubber including a polar rubber in an amount of 50 mass % or more, the nonpolar rubber layer is formed from a rubber composition containing a base rubber including a nonpolar rubber in an amount of 50 mass % or more, the polar rubber layer and the nonpolar rubber layer are laminated via an interlayer formed from an interlayer composition containing an olefin rubber.
Abstract translation: 本发明的目的是提供一种高尔夫球杆把手，其包括含有极性橡胶的层和含有非极性橡胶的层，拉伸强度优异。 本发明提供一种包括极性橡胶层和非极性橡胶层的高尔夫球杆手柄，其中极性橡胶层由含有50质量％以上的极性橡胶的基础橡胶的橡胶组合物形成，非极性橡胶层 橡胶层由含有50质量％以上的非极性橡胶的基础橡胶的橡胶组合物形成，极性橡胶层和非极性橡胶层通过由含有烯烃橡胶的中间层组合物形成的中间层合。
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公开(公告)号：US20160361604A1
公开(公告)日：2016-12-15
申请号：US15179233
申请日：2016-06-10
Applicant: Dunlop Sports Co. Ltd.
Inventor： Kazuyoshi Shiga , Hiroshi Tadaoka , Masanori Taguchi , Takahiro Shigemitsu
CPC classification number: A63B37/0039 , A63B37/004 , A63B37/0041 , A63B37/0043 , A63B37/0045 , A63B37/0048 , A63B37/0049 , A63B37/0075 , C08K3/04 , C08K3/22 , C08K5/09 , C08K5/098 , C08K5/19 , C08K5/20 , C08K2003/2224 , C08L23/0876
Abstract: An object of the present invention is to provide a golf ball resin composition having a high resilience, flexibility and high fluidity. The present invention provides a golf ball resin composition having a bending stiffness (M21-30) ranging from 600 kgf/cm2 to 5,000 kgf/cm2 within a bending angle from 21° to 30°, a rebound resilience (R) of 50% or more, a slab hardness (Shore D) ranging from 40 to 65, a melt flow rate (190° C., 2.16 kgf) of 1.0 g/10 min or more, and a resilience index value ((M21-30)0.5×(R/100)3) of 8.5 or more.
Abstract translation: 本发明的目的是提供具有高弹性，柔韧性和高流动性的高尔夫球树脂组合物。 本发明提供了一种在21°至30°的弯曲角度内具有600kgf / cm 2至5,000kgf / cm 2的弯曲刚度（M21-30）的高尔夫球树脂组合物，回弹性（R）为50％或 更优选为40〜65的板坯硬度（肖氏D），1.0g / 10分钟以上的熔体流动速率（190℃，2.16kgf），弹性指数值（（M21-30）×0.5× （R / 100）3）为8.5以上。
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公开(公告)号：US09289651B2
公开(公告)日：2016-03-22
申请号：US13952992
申请日：2013-07-29
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Akinori Kitamura , Kazuyoshi Shiga , Takahiro Shigemitsu , Yu Kawabata
IPC: C08K5/19 , C08K5/42 , A63B37/00 , C08K5/103 , C08K5/1535 , C08K5/17 , C08K5/00 , C08K5/20 , C08K5/3445
CPC classification number: A63B37/0039 , A63B37/0051 , A63B37/0059 , A63B37/0073 , C08K5/0008 , C08K5/0016 , C08K5/103 , C08K5/1535 , C08K5/17 , C08K5/175 , C08K5/19 , C08K5/20 , C08K5/3445 , C08K5/42
Abstract: The invention provides a resin composition for golf balls having excellent resilience, flexibility and fluidity, and golf balls having excellent resilience and shot feel. The resin composition comprises: (A) at least one selected from the group consisting of (a-1) a binary copolymer of an olefin and a C3-8 α,β-unsaturated carboxylic acid, (a-2) a metal ion-neutralized product of a binary copolymer of an olefin and a C3-8 α,β-unsaturated carboxylic acid, (a-3) a ternary copolymer of an olefin, a C3-8 α,β-unsaturated carboxylic acid, and an α,β-unsaturated carboxylic acid ester, and (a-4) a metal ion-neutralized product of a ternary copolymer of an olefin, a C3-8 α,β-unsaturated carboxylic acid, and an α,β-unsaturated carboxylic acid ester; (B) a compound containing a hydrocarbon chain, a cationic moiety, and an anionic moiety in its molecule; and (C) a nonionic surfactant, wherein a total degree of neutralization expressed by the following equation is 50-300 mol %: Total degree of neutralization ( % ) = ∑ ( number of moles of cation component in resin composition × valence of cation component ) ∑ ( number of moles of anion component in resin composition × valence of anion component ) × 100 .
Abstract translation: 本发明提供了具有优异的弹性，柔韧性和流动性的高尔夫球用树脂组合物，以及具有优异的弹性和拍摄感的高尔夫球。 该树脂组合物包含：（A）选自（a-1）烯烃与C3-8α二元共聚物，（b）不饱和羧酸，（a-2）金属离子 - 烯烃和C3-8α，β-不饱和羧酸的二元共聚物的中和产物，（a-3）烯烃，C 3-8α，β-不饱和羧酸的三元共聚物和 α，β-不饱和羧酸酯和（a-4）烯烃，C3-8α，β-不饱和羧酸和α，bgr的三元共聚物的金属离子中和产物。 不饱和羧酸酯; （B）在其分子中含有烃链，阳离子部分和阴离子部分的化合物; 和（C）非离子表面活性剂，其中由下式表示的总中和度为50-300摩尔％：总中和度的总·赫德度·胡（％）=Σ ㄧcation in阴性ü成分的价格令）×100。
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