公开(公告)号：US20150375055A1

公开(公告)日：2015-12-31

申请号：US14754156

申请日：2015-06-29

Applicant: Dunlop Sports Co., Ltd.

Inventor： Takahiro SHIGEMITSU ,  Hidetaka INOUE

IPC: A63B37/00

CPC classification number: A63B37/0076 ,  A63B37/0031 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0045 ,  A63B37/0049 ,  A63B37/0062 ,  A63B37/008 ,  A63B37/0086 ,  A63B37/0092

Abstract: An object of the present invention is to provide a golf ball showing a low spin rate on driver shots and a high spin rate on approach shots. The present invention provides a golf ball comprising a spherical center, at least two envelope layers covering the spherical center, and a cover covering the envelope layers, wherein an envelope layer (Es1) formed from a material having a lowest material hardness among a center constituent material and envelope layers constituent materials, is disposed in a region located at a distance from 36.0% to 65.0% of a golf ball radius from a center point of the golf ball.

Abstract translation: 本发明的一个目的是提供一种高尔夫球，其在驾驶员镜头上显示低旋转速率，并且在接近镜头上提供高旋转速率。 本发明提供一种高尔夫球，其包括球面中心，至少两个覆盖球面中心的包络层和覆盖包层的盖，其中由中心构件中具有最低材料硬度的材料形成的包层（Es1） 材料和包层组成材料设置在距离高尔夫球的中心点高度球半径的36.0％至65.0％的距离的区域中。

公开(公告)号：US20150119168A1

公开(公告)日：2015-04-30

申请号：US14525916

申请日：2014-10-28

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Hidetaka INOUE ,  Toshiyuki TARAO ,  Kuniyasu HORIUCHI ,  Kazumi KODAMA ,  Keiichi HATTORI ,  Kotaro RYUO

IPC: C08L77/02 ,  A63B37/00 ,  C08L23/08

CPC classification number: C08L77/02 ,  A63B37/0006 ,  A63B37/0024 ,  A63B37/0031 ,  A63B37/0037 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0049 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0069 ,  A63B37/0075 ,  A63B37/0076 ,  A63B37/0094 ,  C08K3/346 ,  C08K5/09 ,  C08K5/098 ,  C08K5/20 ,  C08K9/04 ,  C08L23/0876

Abstract: An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots and a golf ball resin composition. The present invention provides a golf ball wherein at least one constituting member therefore is formed from a golf ball resin composition containing: (A) a polyamide resin, (B) at least one member selected from the group consisting of (b-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-2) a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (b-4) a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (C) an organically modified layered silicate, wherein a mass ratio ((A)/(B)) of (A) component to (B) component ranges from 15/85 to 80/20.

Abstract translation: 本发明的目的是提供一种在驾驶员镜头上行驶大飞行距离的高尔夫球和高尔夫球树脂组合物。 本发明提供一种高尔夫球，其中至少一个构成构件因此由高尔夫球树脂组合物形成，所述高尔夫球树脂组合物包含：（A）聚酰胺树脂，（B）至少一种选自（b-1）a 由烯烃和具有3-8个碳原子的α，bgr-不饱和羧酸组成的二元共聚物，（b-2）由烯烃和α，α-不饱和物构成的二元共聚物的金属离子中和产物 具有3-8个碳原子的羧酸，（b-3）由烯烃，具有3-8个碳原子的α，bgr-不饱和羧酸和α，β-不饱和羧酸酯组成的三元共聚物，和 （b-4）由烯烃，具有3-8个碳原子的α，bgr-不饱和羧酸和α，β-不饱和羧酸酯组成的三元共聚物的金属离子中和产物和（C ）有机改性层状硅酸盐，其中（A）成分与（B）成分的质量比（（A）/（B））成分 ges从15/85到80/20。

公开(公告)号：US20140323242A1

公开(公告)日：2014-10-30

申请号：US14264138

申请日：2014-04-29

Applicant: Dunlop Sports Co. Ltd.

Inventor： Hidetaka INOUE ,  Toshiyuki TARAO

IPC: A63B37/00

CPC classification number: A63B37/0043 ,  A63B37/0007 ,  A63B37/0018 ,  A63B37/0022 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/004 ,  A63B37/0045 ,  A63B37/0049 ,  A63B37/0075 ,  A63B37/0076 ,  A63B37/008 ,  A63B37/0092 ,  A63B37/0096 ,  A63B2037/0079

Abstract: The present invention provides a golf ball that achieves a low spin rate on driver shots to thereby improve flight distance performance, and also has improved durability, especially at high clubhead speeds. The present invention relates to a golf ball including a core, at least one middle layer covering the core, and a cover covering the middle layer, wherein at least one piece or layer of the middle layer includes a material for a middle layer that includes a thermoplastic polyurethane with a slab hardness of 65 to 80 in Shore D hardness and a ratio of upper yield stress (MPa) to lower yield stress (MPa) of not more than 1.60.

Abstract translation: 本发明提供了一种在驾驶员镜头上实现低旋转速率的高尔夫球，从而提高飞行距离性能，并且还具有改善的耐久性，特别是在高杆头速度下。 本发明涉及一种高尔夫球，其包括芯，至少一个覆盖芯的中间层和覆盖中间层的盖，其中中间层的至少一个或多个层包括用于中间层的材料，其包括 热塑性聚氨酯的硬度为65〜80，肖氏D硬度和上屈服应力（MPa）与较低屈服应力（MPa）的比值不大于1.60。

公开(公告)号：US20130196791A1

公开(公告)日：2013-08-01

申请号：US13723937

申请日：2012-12-21

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takahiro SAJIMA ,  Kazuhiko ISOGAWA ,  Kosuke TACHIBANA ,  Hidetaka INOUE

IPC: A63B37/00

CPC classification number: A63B37/0021 ,  A63B37/0004 ,  A63B37/0006 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002

Abstract: A golf ball 2 has a large number of dimples 10 on a surface thereof. The golf ball 2 meets the following mathematical formula (I): Y≦3.8*X−2.894   (I), where X represents a ratio of a sum of areas of all the dimples 10 to a surface area of a phantom sphere of the golf ball, and Y represents a standard deviation (mm) of diameters of all the dimples 10.

Abstract translation: 高尔夫球2在其表面上具有大量凹坑10。 高尔夫球2符合以下数学公式（I）：Y@3.8*X-2.894（I），其中X表示所有凹坑10的面积之和与高尔夫球体的表面积的比率 球，Y表示所有凹坑10的直径的标准偏差（mm）。

公开(公告)号：US20180171127A1

公开(公告)日：2018-06-21

申请号：US15811075

申请日：2017-11-13

Applicant: Dunlop Sports Co. Ltd.

Inventor： Takahiro SHIGEMITSU ,  Hidetaka INOUE

IPC: C08L23/08 ,  A63B37/00

Abstract: An object of the present invention is to provide a golf ball resin composition having improved rebound resilience performance. The present invention provides a golf ball resin composition containing: (A) a thermoplastic resin having an infrared absorption peak in a region from 3200 cm−1 to 3600 cm−1, and (B) at least one resin component selected from the group consisting of (b-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-2) a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (b-4) a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, wherein when a relaxation modulus Er (−20° C., 9%) of the golf ball resin composition is measured under conditions of −20° C. and a strain of 9%, a relaxation curve is plotted with the relaxation modulus (MPa) as the vertical axis and a logarithm (ln(t)) of time (sec) as the horizontal axis, and the relaxation curve is linearly approximated to obtain a linear approximation curve, the linear approximation curve has a slope in an absolute value of 7 or more.

公开(公告)号：US20180036599A1

公开(公告)日：2018-02-08

申请号：US15645144

申请日：2017-07-10

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Hidetaka INOUE ,  Kazuya KAMINO ,  Kohei MIMURA ,  Toshiyuki TARAO ,  Mami TANAKA

IPC: A63B37/00

CPC classification number: A63B37/0012 ,  A63B37/0003 ,  A63B37/0006 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0022 ,  A63B37/0038

Abstract: A golf ball 2 includes a main body 4 and a paint film 6. The paint film 6 includes an inner layer 14 and an outer layer 16. A modulus Min of the inner layer 14 is higher than a modulus Mout of the outer layer 16. A difference (Min−Mout) is not less than 25 kgf/cm2. The golf ball 2 has a plurality of dimples 18. A ratio So of a sum of areas of the dimples 18 relative to a surface area of a phantom sphere of the golf ball 2 and a ratio Rs of a number of the dimples 18 each having a diameter of not less than 9.60% and not greater than 10.37% of a diameter of the golf ball 2, relative to a total number of the dimples 18, satisfy the following mathematical formula (1). Rs≧−2.5*So+273   (1)

公开(公告)号：US20170340922A1

公开(公告)日：2017-11-30

申请号：US15592835

申请日：2017-05-11

Applicant: Dunlop Sports Co. Ltd.

Inventor： Hidetaka INOUE ,  Toshiyuki TARAO

IPC: A63B37/00 ,  C09D131/04 ,  C09D175/08

CPC classification number: A63B37/0022 ,  A63B37/0077 ,  C08B37/0015 ,  C08G18/246 ,  C08G18/4202 ,  C08G18/4277 ,  C08G18/792 ,  C08G83/007 ,  C08L5/16 ,  C09D131/04 ,  C09D175/06 ,  C09D175/08

Abstract: An object of the present invention is to provide a golf ball showing improved controllability on approach shots for less than 40 yards, in particular, on approach shots around the green (about 10 yards to 20 yards) and improved controllability on approach shots from the rough, and showing excellent shot feeling. The present invention provides a golf ball comprising a golf ball body and a paint film covering the golf ball body, wherein a loss tangent tan δ has a peak temperature of 50° C. or less and a peak height of less than 0.8, obtained by measuring dynamic viscoelasticity of the paint film under the following conditions: Measuring mode: tensile mode Measuring temperature range: from −100° C. to 150° C. Temperature rising rate: 4° C./min Oscillation frequency: 10 Hz Measuring strain: 0.1%.

公开(公告)号：US20160339311A1

公开(公告)日：2016-11-24

申请号：US15159933

申请日：2016-05-20

Applicant: DUNLOP SPORTS CO., LTD.

Inventor： Sho GOJI ,  Chiemi MIKURA ,  Kazuyoshi SHIGA ,  Kuniyasu HORIUCHI ,  Toshiyuki TARAO ,  Hidetaka INOUE ,  Hitoshi OYAMA ,  Hiroshi HASEGAWA

IPC: A63B53/14

CPC classification number: A63B53/14 ,  A63B60/16 ,  A63B60/52 ,  A63B2209/00

Abstract: An object of the present invention is to provide a golf club grip having excellent adhesion between the grip body and the grip end thereof, and excellent durability. The present invention provides a golf club grip comprising a cylindrical grip body having a cylindrical inner layer and a cylindrical outer layer covering the cylindrical inner layer, and a grip end provided on an butt side end of the cylindrical grip body, wherein the cylindrical outer layer is interposed in at least a part of a space between a butt side end edge of the cylindrical inner layer and the grip end.

Abstract translation: 本发明的目的是提供一种具有优良的把手本体与其把手端部之间的粘合力的高尔夫球杆把手，并具有优异的耐久性。 本发明提供了一种高尔夫球杆把手，其包括具有圆柱形内层和覆盖圆柱形内层的圆柱形外层的圆柱形把手，以及设置在圆柱形把手主体的对接侧端部上的把手端，其中圆柱形外层 插入在圆筒形内层的对接侧端边缘与握持端之间的空间的至少一部分中。

公开(公告)号：US20150375059A1

公开(公告)日：2015-12-31

申请号：US14754053

申请日：2015-06-29

Applicant: DUNLOP SPORTS CO., LTD.

Inventor： Takahiro SHIGEMITSU ,  Hidetaka INOUE

IPC: A63B37/00

CPC classification number: A63B37/0092 ,  A63B37/0043 ,  A63B37/0044 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0074 ,  A63B37/0075 ,  A63B37/0076 ,  A63B37/008

Abstract: An object of the present invention is to provide a golf ball showing a low spin rate on driver shots and a high spin rate on approach shots. The present invention provides a golf ball having a low hardness part having a hardness in a range from 5 to 40 in Shore D hardness or a lowest hardness point in a core hardness distribution in a region located at a distance from 36.0% to 65.0% of a radius of the golf ball from a center point of the golf ball.

Abstract translation: 本发明的一个目的是提供一种高尔夫球，其在驾驶员镜头上显示低旋转速率，并且在接近镜头上提供高旋转速率。 本发明提供一种具有低硬度部分的高尔夫球，其硬度在肖氏D硬度为5至40的范围内，或者在位于距离36.0％至65.0％的区域的芯部硬度分布中的最低硬度点 从高尔夫球的中心点开始的高尔夫球的半径。

公开(公告)号：US20130324317A1

公开(公告)日：2013-12-05

申请号：US13886291

申请日：2013-05-03

Applicant: DUNLOP SPORTS CO. LTD.

Inventor： Takahiro SAJIMA ,  Hidetaka INOUE

IPC: A63B37/00

CPC classification number: A63B37/0054 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0045 ,  A63B37/0051 ,  A63B37/0062 ,  A63B37/0063 ,  A63B37/0076 ,  A63B37/0092 ,  C08K5/09 ,  C08K5/14 ,  C08L21/00 ,  C08L9/00

Abstract: A golf ball 2 includes a core 4, an inner cover 6, and an outer cover 8. The core 4 includes a center 10, an inner envelope layer 12, and an outer envelope layer 14. The inner envelope layer 12 is formed by a rubber composition being crosslinked. The rubber composition includes: a base rubber (a); a co-crosslinking agent (b); a crosslinking initiator (c); and an acid and/or a salt (d). The co-crosslinking agent (b) is: (b1) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms; or (b2) a metal salt of an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms.

Abstract translation: 高尔夫球2包括芯4，内盖6和外盖8.芯4包括中心10，内包层12和外包层14.内包层12由 橡胶组合物交联。 橡胶组合物包括：基础橡胶（a）; 共交联剂（b）; 交联引发剂（c）; 和酸和/或盐（d）。 共交联剂（b）是：（b1）具有3-8个碳原子的α，β-不饱和羧酸; 或（b2）具有3-8个碳原子的α，β-不饱和羧酸的金属盐。