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公开(公告)号:US20150273276A1
公开(公告)日:2015-10-01
申请号:US14672930
申请日:2015-03-30
Applicant: DUNLOP SPORTS CO., LTD.
Inventor: Kazuhiko ISOGAWA , Kosuke TACHIBANA , Toshiyuki TARAO
IPC: A63B37/00
CPC classification number: A63B37/0075 , A63B37/0022 , A63B37/0033 , A63B37/0037 , A63B37/0045 , A63B37/0049 , A63B37/0063 , A63B37/0076 , C08G18/10 , C08G18/3206 , C08G18/4854 , C08G18/6677 , C08G18/755 , C08G18/7831 , C08G18/792 , C09D175/08 , C08G18/722
Abstract: An object of the present invention is to provide a golf ball striking a good balance between a flight distance on driver shots and a spin rate on approach shots, and excellent in stain resistance and a shot feeling. The present invention provides a golf ball comprising an intermediate layer, a cover, and a paint film, wherein a base resin of the paint film is a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition containing a urethane polyol including a polyether diol with a number average molecular weight ranging from 800 to 3000 as a constituent component, and the golf ball satisfies the following requirements; Mp≦200×X−75 Mp≦100 Mm−Mc>100 Tm>Tc>Tp (Tm×Mm)/(Tc×Mc)>7.5 (Tc×Mc)/(Tp×Mp)>2.4. [Mp, Mm and Mc represent 10% modulus (kgf/cm2) of the paint film, intermediate layer and cover, respectively; Tp, Tm and Tc represent thicknesses (mm) of the paint film, intermediate layer and cover, respectively; and X represents a molar ratio (NCO/OH) of a NCO group in the polyisocyanate composition to a OH group in the polyol composition.]
Abstract translation: 本发明的目的是提供一种高尔夫球在驾驶员镜头上的飞行距离和接近射击之间的旋转速度之间达到良好的平衡,并且具有优异的耐污染性和射击感。 本发明提供一种高尔夫球,其包括中间层,盖和漆膜,其中,所述漆膜的基础树脂是通过多异氰酸酯组合物和含有包含聚醚的氨基甲酸酯多元醇的多元醇组合物之间的反应获得的聚氨酯 数均分子量为800〜3000的二醇作为构成成分,高尔夫球满足以下要求: Mp&NlE; 200×X-75Mp≦̸ 100Mm-Mc> 100Tm Tc> Tc> Tp(Tm×Mm)/(Tc×Mc)> 7.5(Tc×Mc)/(Tp×Mp)> 2.4。 [Mp,Mm和Mc分别表示漆膜,中间层和盖的10%模量(kgf / cm 2) Tp,Tm和Tc分别表示漆膜,中间层和盖的厚度(mm); X表示多元醇组合物中的多异氰酸酯组合物中的NCO基与OH基的摩尔比(NCO / OH)。
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公开(公告)号:US20150182808A1
公开(公告)日:2015-07-02
申请号:US14578696
申请日:2014-12-22
Applicant: DUNLOP SPORTS CO., LTD.
Inventor: Kosuke TACHIBANA , Kazuhiko ISOGAWA
IPC: A63B37/00
CPC classification number: A63B37/0092 , A63B37/0076 , A63B37/0077 , A63B37/008
Abstract: A golf ball includes a core, a mid layer, and a cover. The core includes an inner core, a mid core, and an outer core. The mid layer includes an inner mid layer and an outer mid layer. A hardness H(C) is equal to or greater than a hardness H(B). A hardness H(E) is equal to or greater than a hardness H(D). An angle α is calculated by (Formula 1). An angle β is calculated by (Formula 2). The angle α is 0° or greater. A difference (α−β) is 0° or greater. A hardness Hm2 of the outer mid layer is greater than a hardness Hm1 of the inner mid layer. α=(180°/π)*a tan [{H(D)−H(C)}/Y] (Formula 1) β=(180°/π)*a tan [{H(F)−H(E)}/Z] (Formula 2)
Abstract translation: 高尔夫球包括芯,中层和盖。 芯部包括内芯,中芯和外芯。 中间层包括内部中间层和外部中间层。 硬度H(℃)等于或大于硬度H(B)。 硬度H(E)等于或大于硬度H(D)。 角度α由(式1)计算。 角&bgr 由式(2)计算。 角度α为0°以上。 差值(α&bgr)为0°以上。 外中层的硬度Hm2大于内中层的硬度Hm1。 α=(180°/ p1)* a tan [{H(D)-H(C)} / Y](式1)&bgr; =(180°/ -H(E)} / Z](式2)
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公开(公告)号:US20150182803A1
公开(公告)日:2015-07-02
申请号:US14576425
申请日:2014-12-19
Applicant: DUNLOP SPORTS CO. LTD.
Inventor: Kosuke TACHIBANA , Kazuhiko ISOGAWA
IPC: A63B37/00
CPC classification number: A63B37/0092 , A63B37/0076 , A63B37/0077 , A63B37/008
Abstract: A golf ball includes a core, a mid layer, and a cover. The core includes an inner core, a mid core, and an outer core. The mid layer includes an inner mid layer and an outer mid layer. A hardness H(C) is equal to or greater than a hardness H(B). A hardness H(E) is equal to or greater than a hardness H(D). An angle α is calculated by (Formula 1). An angle β is calculated by (Formula 2). The angle α is 0° or greater. A difference (α−β) is 0° or greater. A hardness Hm2 of the outer mid layer is less than a hardness Hm1 of the inner mid layer. A hardness Hc of the cover is less than the hardness Hm2. α=(180°/π)*a tan [{H(D)−H(C)}/Y] (Formula 1) β=(180°/π)*a tan [{H(F)−H(E)}/Z] (Formula 2)
Abstract translation: 高尔夫球包括芯,中层和盖。 芯部包括内芯,中芯和外芯。 中间层包括内部中间层和外部中间层。 硬度H(℃)等于或大于硬度H(B)。 硬度H(E)等于或大于硬度H(D)。 角度α由(式1)计算。 角&bgr 由式(2)计算。 角度α为0°以上。 差值(α&bgr)为0°以上。 外侧中间层的硬度Hm2小于内侧中间层的硬度Hm1。 盖的硬度Hc小于硬度Hm2。 α=(180°/ p1)* a tan [{H(D)-H(C)} / Y](式1)&bgr; =(180°/ -H(E)} / Z](式2)
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公开(公告)号:US20150174455A1
公开(公告)日:2015-06-25
申请号:US14578647
申请日:2014-12-22
Applicant: DUNLOP SPORTS CO. LTD.
Inventor: Kazuhiko ISOGAWA , Kosuke TACHIBANA
IPC: A63B37/00
CPC classification number: A63B37/0077 , A63B37/0031 , A63B37/0033 , A63B37/0039 , A63B37/004 , A63B37/0043 , A63B37/0044 , A63B37/0045 , A63B37/0076 , A63B37/008 , A63B37/0092
Abstract: A golf ball 2 includes a core 4, a first mid layer 10, a second mid layer 12, a third mid layer 14, and a cover 8. A volume Vinm and a Shore D hardness Hinm of the first mid layer, a volume Vm and a Shore D hardness Hm of the second mid layer, a volume Voum and a Shore D hardness Houm of the third mid layer, a volume Vc and a Shore D hardness Hc of the cover, and a volume V of an entirety of the ball meet: (a) Hinm Houm>Hc, (b) Vinm Voum>Vc, (c) Hm−Hc>25, (d) (Vinm+Vm+Voum+Vc)/V 1.50, and (f) (Vm*Hm)/(Vc*Hc)>3.0.
Abstract translation: 高尔夫球2包括芯4,第一中间层10,第二中间层12,第三中间层14和盖8.第一中间层的体积Vinm和肖氏D硬度Hinm,体积Vm 和第二中间层的肖氏D硬度Hm,第三中间层的体积Voum和肖氏D硬度Houm,盖的体积Vc和肖氏D硬度Hc以及整个球的体积V 满足:(a)Hinm
Houm> Hc,(b)Vinm Voum> Vc,(c)Hm-Hc> 25,(d)(Vinm + Vm + Voum + Vc)/ V <0.40, (e)Vm / Vc> 1.50,(f)(Vm * Hm)/(Vc * Hc)> 3.0。 -
公开(公告)号:US20150119170A1
公开(公告)日:2015-04-30
申请号:US14525782
申请日:2014-10-28
Applicant: DUNLOP SPORTS CO. LTD.
Inventor: Kosuke TACHIBANA , Kazuhiko ISOGAWA
IPC: A63B37/00
CPC classification number: A63B37/0076 , A63B37/004 , A63B37/0043 , A63B37/0044 , A63B37/0045 , A63B37/0064 , A63B37/0092
Abstract: A golf ball includes a spherical core and a cover. The core includes an inner core, a mid core, and an outer core. A hardness H(C) is equal to or greater than a hardness H(B). A hardness H(E) is equal to or greater than a hardness H(D). An angle α is calculated by (Formula 1) from a thickness Y (mm) of the mid core, the hardness H(C), and the hardness H(D). An angle β is calculated by (Formula 2) from a thickness Z (mm) of the outer core, the hardness H(E), and the hardness H(F). Each of the angle α and a difference (α−β) between the angles α and β is equal to or greater than 0°. The golf ball has excellent flight performance upon a shot with a driver. α=(180/n)*a tan [{H(D)−H(C)}/Y] (Formula 1) β=(180/n)*a tan [{H(F)−H(E)}/Z] (Formula 2)
Abstract translation: 高尔夫球包括球形芯和盖。 芯部包括内芯,中芯和外芯。 硬度H(℃)等于或大于硬度H(B)。 硬度H(E)等于或大于硬度H(D)。 通过(式1)从中间芯的厚度Y(mm),硬度H(C)和硬度H(D)计算角度α。 角&bgr 通过(式2)从外芯的厚度Z(mm),硬度H(E)和硬度H(F)计算出。 角度α和角度α和&lt; bgr之间的角度α和差值(α&amp; bgr) 等于或大于0°。 高尔夫球在驾驶员射击时具有出色的飞行性能。 α=(180 / n)* a tan [{H(D)-H(C)} / Y](式1)&bgr; =(180 / n)* a tan [{H(F)-H )} / Z](式2)
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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)。
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