公开(公告)号：US4929678A

公开(公告)日：1990-05-29

申请号：US143768

申请日：1988-01-14

申请人： Akihiko Hamada ,  Hidenori Hiraoka ,  Yoshinobu Nakamura ,  Hiroshi Ohtsuru

发明人： Akihiko Hamada ,  Hidenori Hiraoka ,  Yoshinobu Nakamura ,  Hiroshi Ohtsuru

IPC分类号： A63B37/00 ,  A63B37/04 ,  A63B37/06 ,  C08F279/02 ,  C08K5/098 ,  C08K5/14 ,  C08L9/00 ,  C08L21/00

CPC分类号： C08K5/098 ,  A63B37/0003 ,  A63B37/0064 ,  A63B37/0073 ,  A63B37/0074 ,  A63B37/0075 ,  A63B37/0078 ,  A63B37/0087 ,  C08F279/02 ,  C08K5/14

摘要： A rubber composition for a solid golf ball comprising a rubber component containing at least 40% by weight of a polybutadiene rubber which has a Mooney viscosity [ML.sub.1+4 (100.degree. C.)] of 45 to 90 and a cis-1,4 bond of at least 80%, a co-crosslinking agent and a peroxide.

摘要翻译： 一种用于固体高尔夫球的橡胶组合物，其包含橡胶组分，其含有至少40重量％的门尼粘度[ML1 + 4（100℃）]为45至90的聚丁二烯橡胶和顺式-1,4 至少80％的键，共交联剂和过氧化物。

公开(公告)号：USRE38589E1

公开(公告)日：2004-09-14

申请号：US09248118

申请日：1999-02-11

申请人： Hidenori Hiraoka ,  Yoshimasa Koizumi

发明人： Hidenori Hiraoka ,  Yoshimasa Koizumi

IPC分类号： A63B3706

CPC分类号： A63B37/0003 ,  A63B37/0062 ,  A63B37/0076 ,  C08K5/098 ,  C08L9/00

摘要： The present invention provides a three-piece solid golf ball having both excellent hit feeling and large flying distance. The three-piece solid golf ball comprises a core 1 and a cover 2 covering the core 1, and the core 1 has a two-layer structure comprising a center 1a and an outer shell 1b. The center 1a contains an &agr;,&bgr;-unsaturated carboxylic acid metallic salt in an amount of 13 to 28 parts by weight based on 100 parts by weight of a base rubber and the outer shell 1b contains an &agr;,&bgr;-unsaturated carboxylic acid metallic salt in an amount of 28 to 35 parts by weight based on 100 parts by weight of an base rubber. A surface hardness (measured by JIS-C type hardness tester) of the core 1 is 75 to 88 and a compression deformation amount of the core 1 is 2.7 to 5.0 mm.

公开(公告)号：US06790148B1

公开(公告)日：2004-09-14

申请号：US09478367

申请日：2000-01-06

申请人： Kazunari Yoshida ,  Keiji Ohama ,  Keiji Moriyama ,  Hidenori Hiraoka ,  Takumi Nishino

发明人： Kazunari Yoshida ,  Keiji Ohama ,  Keiji Moriyama ,  Hidenori Hiraoka ,  Takumi Nishino

IPC分类号： A63B3706

CPC分类号： A63B37/04 ,  A63B37/0003 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0064 ,  A63B37/0075

摘要： The present invention provides a multi-piece solid golf ball comprising a core consisting of an inner core and an outer core, and one or more layers of cover, wherein the inner core has a diameter of 30 to 39.5 mm and a center hardness in JIS-C hardness of 55 to 70, and is formed from press molded rubber composition comprising polybutadiene, a co-crosslinking agent, an organic peroxide and a filler, and the JIS-C hardness at a distance of 15 mm from the center point of the inner core is higher than the center hardness by 5 to 20; the outer core has a thickness of 0.3 to 2.0 mm and a surface hardness in JIS-C hardness of 75 to 90, and is formed from press molded rubber composition, and the surface hardness of the outer core is higher than the center hardness of the outer core is higher than the center hardness of the inner core by 10 to 35; and the cover contains thermoplastic resin as a base resin, and the outmost cover layer has a thickness of 1.5 to 2.5 mm and a surface hardness in Shore D hardness of 64 to 72.

摘要翻译： 本发明提供一种多片固体高尔夫球，其包括由内芯和外芯组成的芯和一层或多层盖，其中内芯的直径为30至39.5mm，中心硬度为JIS -C硬度为55〜70，由包含聚丁二烯，共交联剂，有机过氧化物和填料的压模橡胶组合物形成，并且在距离中心点15mm的距离处的JIS-C硬度 内芯高于中心硬度5〜20; 外芯的厚度为0.3〜2.0mm，JIS-C硬度的表面硬度为75〜90，由压模橡胶组合物形成，外芯的表面硬度高于 外芯高于内核中心硬度10〜35; 并且所述盖包含作为基础树脂的热塑性树脂，所述最外层的厚度为1.5〜2.5mm，肖氏D硬度的表面硬度为64〜72。

公开(公告)号：US5711723A

公开(公告)日：1998-01-27

申请号：US625813

申请日：1996-04-04

申请人： Hidenori Hiraoka ,  Kazushige Sugimoto ,  Keiji Moriyama ,  Yoshimasa Koizumi ,  Kuniyasu Horiuchi

发明人： Hidenori Hiraoka ,  Kazushige Sugimoto ,  Keiji Moriyama ,  Yoshimasa Koizumi ,  Kuniyasu Horiuchi

IPC分类号： A63B37/00 ,  A63B37/06 ,  A63B37/14

CPC分类号： A63B37/0003 ,  A63B37/0031 ,  A63B37/0062 ,  A63B37/0064 ,  A63B37/0075 ,  A63B37/0092

摘要： A three-piece solid golf ball which attains a long flight distance with excellent controllability which comprises a core having a two-layer structure of a center and a shell covering the center, and a cover covering the core, wherein the center has a diameter of 25 to 37 mm, a JIS-C hardness of 60 to 85 at its center point, and a JIS-C hardness difference between the center point and a surface of the center of not more than 4, the shell has a JIS-C surface hardness of 75 to 90, and the cover has a stiffness modulus of 1,200 to 3,600 kg/cm.sup.2, with; the hardness being measured by a JIS-C type hardness tester.

摘要翻译： 一种具有优异可控性的长飞行距离的三件式实心高尔夫球，其包括具有覆盖中心的中心和壳体的两层结构的芯和覆盖芯的盖，其中中心具有 25〜37mm，其中心点的JIS-C硬度为60〜85，中心点与中心面之间的JIS-C硬度差为4以下，壳体具有JIS-C表面 硬度为75〜90，其刚度模量为1200〜3600kg / cm2， 硬度由JIS-C型硬度计测量。

公开(公告)号：US5490673A

公开(公告)日：1996-02-13

申请号：US243786

申请日：1994-05-17

申请人： Hidenori Hiraoka

发明人： Hidenori Hiraoka

IPC分类号： A63B37/00 ,  A63B37/04 ,  A63B37/12

CPC分类号： A63B37/0003 ,  A63B37/0034 ,  A63B37/0062

摘要： Disclosed is a golf ball having an excellent (soft) hit feeling and excellent durability, which is suitable for use on the driving range. The golf ball has a two-layer structure including a core and a cover for coating the core. A compressive strain of the core is 2.8 to 3.8 mm. A hardness distribution of the core (measured by a JIS-C type hardness tester) is adjusted to 65 to 79 at the center, 70 to 80 at the location which is 5 mm away from the center to the surface, 73 to 80 at the location which is 10 mm away from the center to the surface, 75 to 82 at the location which is 15 mm away from the center to the surface and 70 to 85 at the surface, and a difference in hardness between adjacent locations of the measurement is within 5. The cover contains an ionomer resin as a main material and a stiffness of the cover is 1400 to 3000 kg/cm.sup.2. The golf ball has a ball compression that is 70 to 100 (PGA system).

摘要翻译： 公开了一种适用于驾驶范围的具有优良（柔软）打击感和优异耐用性的高尔夫球。 高尔夫球具有包括芯和用于涂覆芯的盖的双层结构。 芯的压缩应变为2.8至3.8mm。 芯部的硬度分布（由JIS-C型硬度计测定）在中心处被调整为65〜79°，距离中心至表面5mm的位置为70〜80°， 距离中心至表面10毫米的位置，距中心至表面15毫米，表面70至85处的位置为75至82，测量的相邻位置之间的硬度差为 该盖包含离聚物树脂作为主要材料，并且盖的刚度为1400至3000kg / cm 2。 高尔夫球具有70至100（PGA系统）的球压缩。

公开(公告)号：US5082285A

公开(公告)日：1992-01-21

申请号：US605413

申请日：1990-10-30

申请人： Akihiko Hamada ,  Hidenori Hiraoka

发明人： Akihiko Hamada ,  Hidenori Hiraoka

IPC分类号： A63B37/00 ,  A63B37/04 ,  C08L9/00 ,  C08L21/00

CPC分类号： A63B37/0003 ,  A63B37/005 ,  A63B37/0073 ,  A63B37/0074 ,  A63B37/0094 ,  C08L9/00 ,  C08K5/09 ,  C08K5/14 ,  Y10S524/908

摘要： The present invention provides a solid golf ball containing the ultra-high molecular weight polybutadiene which is formulated therein in a solution form. The golf ball has very improved impact resilience and durability. The present invention provides a solid golf ball having at least a resilient portion therein formed from a rubber composition which comprises a base rubber, a crosslinking agent and a co-crosslinking agent, wherein said base rubber comprises a solid polybutadiene prepared by mixing the following components in solution form(a) 5 to 50% by weight of an ultra-high molecular weight polybutadiene rubber which has a cis-1,4-bond of at least 80% and a number average molecular weight of 40.times.10.sup.4 or more, and(b) 95 to 50% by weight of a polybutadiene rubber which has a cis-1,4-bond of at least 80% and a number average molecular weight of less than 40.times.10.sup.4.

摘要翻译： 本发明提供一种含有超高分子量聚丁二烯的固体高尔夫球，其以溶液形式配制在其中。 高尔夫球具有非常好的冲击弹性和耐用性。 本发明提供一种固体高尔夫球，其中至少具有由橡胶组合物形成的弹性部分，该橡胶组合物包含基础橡胶，交联剂和共交联剂，其中所述基础橡胶包括通过混合以下组分制备的固体聚丁二烯 溶液形式（a）5至50重量％的具有至少80％的顺式-1,4-键和数均分子量为40×10 4以上的超高分子量聚丁二烯橡胶和（b ）95〜50重量％的具有至少80％的顺式-1,4-键和数均分子量小于40×10 4的聚丁二烯橡胶。