公开(公告)号：US20040106474A1

公开(公告)日：2004-06-03

申请号：US10720540

申请日：2003-11-25

Applicant: BRIDGESTONE SPORTS CO., LTD.

Inventor： Junji Hayashi ,  Yasumasa Shimizu ,  Hiroshi Higuchi ,  Yasushi Ichikawa

IPC: A63B037/04

CPC classification number: C08K5/098 ,  A63B37/0003 ,  A63B37/0006 ,  A63B37/0016 ,  A63B37/0022 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0054 ,  A63B37/0064 ,  A63B37/0065 ,  A63B37/0076 ,  A63B37/0087 ,  A63B37/04 ,  C08K5/14 ,  C08L9/00

Abstract: In a multi-piece solid golf ball comprising a solid core, a mantle and a cover, the solid core is made of a rubber composition that includes a base rubber containing a polybutadiene synthesized using a rare-earth catalyst, a small amount of organic peroxide, an unsaturated carboxylic acid and/or a metal salt thereof, an organic sulfur compound and an inorganic filler. The mantle is made of a thermoplastic resin composition. The cover is made primarily of a thermoplastic polyurethane material. This construction provides the golf ball with a combination of outstanding flight performance and soft feel with cover's scuff resistance and coating's abrasion resistance, that is unprecedented.

Abstract translation: 在包括实芯，地幔和覆盖物的多片固体高尔夫球中，实芯由橡胶组合物制成，该橡胶组合物包括含有使用稀土催化剂合成的聚丁二烯的基础橡胶，少量有机过氧化物 ，不饱和羧酸和/或其金属盐，有机硫化合物和无机填料。 地幔由热塑性树脂组合物制成。 盖主要由热塑性聚氨酯材料制成。 这种结构为高尔夫球提供了出色的飞行性能和柔软的感觉，同时具有无与伦比的耐磨性和耐磨性。

公开(公告)号：US20030114252A1

公开(公告)日：2003-06-19

申请号：US10318260

申请日：2002-12-13

Applicant: BRIDGESTONE SPORTS CO., LTD

Inventor： Junji Hayashi ,  Hisashi Yamagishi ,  Yasumasa Shimizu ,  Yasushi Ichikawa

IPC: A63B037/04 ,  A63B037/12 ,  A63B037/14

CPC classification number: A63B37/0003 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/04 ,  A63B37/12

Abstract: A multi-piece golf ball includes a core having a diameter of 30 to 40 mm, at least one intermediate layer including the outermost layer having a thickness of 0.5 to 2.0 mm, and a cover having a thickness of 0.5 to 2.0 mm. The core is made from a rubber composition mainly containing polybutadiene. The outermost layer is made from a resin material containing an ionomer resin in an amount of 30% by weight or more. The cover is made from a material obtained by dispersedly blending at least one kind of silicone powder selected from a silicone rubber powder, a silicon resin powder, and a composite powder thereof, in a main resin component containing an ionomer resin in an amount of 50% by weight or more. The hardness of the outermost layer of the at least one intermediate layer is harder than the hardness of a center portion of the core. The hardness of the cover is harder than the hardness of the outermost layer of the at least one intermediate layer. A difference in hardness between the cover and the center portion of the core satisfies a relation of 10null(Dulometer D hardness of covernullDulometer D hardness of center portion of corenull40. The multi-piece golf ball is excellent in resilience, durability, and feel of hitting.

Abstract translation: 多片高尔夫球包括直径为30至40mm的芯，至少一个包括最外层的中间层，其厚度为0.5至2.0mm，厚度为0.5至2.0mm的覆盖层。 芯由主要含有聚丁二烯的橡胶组合物制成。 最外层由含有30重量％以上离聚物树脂的树脂材料制成。 该盖由通过将选自硅橡胶粉末，硅树脂粉末和其复合粉末中的至少一种硅酮粉末分散混合到含有离聚物树脂的主要树脂组分中而获得的材料制成，其量为50 重量％以上。 至少一个中间层的最外层的硬度比芯的中心部分的硬度硬。 盖的硬度比至少一个中间层的最外层的硬度更硬。 覆盖层和芯部中心部分之间的硬度差异满足10 <=（Dulometer D硬度中心部分的Dulometer D硬度<40），多片式高尔夫弹性弹性优异 ，耐用性和打击感。

公开(公告)号：US20030045377A1

公开(公告)日：2003-03-06

申请号：US09929065

申请日：2001-08-15

Applicant: BRIDGESTONE SPORTS CO., LTD.

Inventor： Yutaka Masutani ,  Junji Hayashi ,  Hisashi Yamagishi

IPC: A63B037/04 ,  A63B037/06

CPC classification number: A63B37/0003 ,  A63B37/0035 ,  A63B37/0054 ,  A63B37/0062 ,  A63B37/0066

Abstract: A golf ball includes a solid core and a cover of at least one layer; wherein each of a specific gravity of the solid core and a specific gravity of the cover is nearly equal to a value (S) of a relation expression given by SnullW/null(null/6)nullD3null, where W is a weight of the golf ball and D is a diameter of the golf ball. The golf ball can enhance the durability to increase the carry of the ball with less variations in carry of the ball.

Abstract translation: 高尔夫球包括实芯和至少一层的盖; 其中，实心芯的比重和盖的比重几乎等于由S = W / [（pi / 6）×D3]给出的关系式的值（S），其中W是重量 的高尔夫球，D是高尔夫球的直径。 高尔夫球可以提高耐久性，以增加球的进位，球的进位变化较小。

公开(公告)号：US20030022735A1

公开(公告)日：2003-01-30

申请号：US09929491

申请日：2001-08-15

Applicant: BRIDGESTONE SPORTS CO., LTD.

Inventor： Junji Hayashi ,  Yutaka Masutani ,  Hisashi Yamagishi

IPC: A63B037/04 ,  A63B037/06

CPC classification number: A63B37/0004 ,  A63B37/0003 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0024 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0035 ,  A63B37/06 ,  A63B37/12

Abstract: A golf ball includes a core and a cover made from a cover material mainly containing an ionomer resin and also an inorganic filler having a specific gravity of 3.50 or more in an amount of 10 to 25 parts by mass on the basis of 100 parts by mass of the ionomer resin. A flexural amount of the core, measured by applying a load of 980 N thereto, is in a range of 4.7 to 5.3 mm. A specific gravity of the cover material is in a range of 1.050 to 1.100, a thickness of the cover is in a range of 1.5 to 2.0 mm, and a Shore D hardness of the cover is in a range of 57 to 63. A weight of the golf ball is in a range of 45.0 to 46.0 g, and a flexural amount of the golf ball, measured by applying a load of 980 N thereto, is in a range of 3.7 to 4.3 mm. A weight (W) of the golf ball and an inertia moment (MI) thereof satisfy a relationship of 1.53nullWnull13.32nullMInull1.61nullWnull11.02. Such a golf ball can enhance the resilience to increase the carry of the ball, realize player's feeling of hitting the ball, and improve the durability against cracking.

公开(公告)号：US20030008730A1

公开(公告)日：2003-01-09

申请号：US10170592

申请日：2002-06-14

Applicant: BRIDGESTONE SPORTS CO., LTD.

Inventor： Junji Hayashi ,  Yutaka Masutani ,  Hisashi Yamagishi

IPC: A63B037/12

CPC classification number: A63B37/12 ,  A63B37/0003 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0033 ,  A63B37/0035 ,  A63B37/0036

Abstract: A golf ball includes a core, and a cover made from a cover material containing an ionomer resin and also barium sulfate and titanium dioxide added in a total amount ranging from 10 to 25 parts by mass on the basis of 100 parts by mass of the ionomer resin. A flexural amount of the core, measured by applying a load of 980 N thereto, is in a range of 4.0 to 5.5 mm. A ratio of a melt-flow rate to a specific gravity (melt-flow rate/specific gravity) of the cover material is in a range of 1.6 or more. A Shore D hardness of the cover is in a range of 55 to 65.

Abstract translation: 高尔夫球包括芯，以及包含离子交联树脂的覆盖材料和基于100质量份离聚物的总量为10-25质量份的硫酸钡和二氧化钛制成的盖子 树脂。 通过对其施加980N的载荷测量的芯的弯曲量在4.0至5.5mm的范围内。 覆盖材料的熔体流动速率与比重（熔体流动速率/比重）的比例在1.6以上的范围内。 盖的肖氏D硬度在55至65的范围内。

公开(公告)号：US20020155902A1

公开(公告)日：2002-10-24

申请号：US10033890

申请日：2002-01-03

Applicant: BRIDGESTONE SPORTS CO., LTD.

Inventor： Junji Hayashi ,  Hisashi Yamagishi ,  Yasumasa Shimizu

IPC: A63B037/04 ,  A63B037/06 ,  A63B037/12 ,  A63B037/14

CPC classification number: A63B37/00 ,  A63B37/0004 ,  A63B37/0006 ,  A63B37/0012 ,  A63B37/0016 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0039 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0075 ,  A63B37/008 ,  A63B37/0083 ,  A63B37/0092

Abstract: A golf ball includes a solid core, an intermediate layer, and a cover in a surface of which a plurality of dimples are formed. The solid core has a center JIS-C hardness of 50-70 and a surface JIS-C hardness of 60-80, and has a diameter of 35-40 mm. The intermediate layer is made from a material mainly containing an ionomer resin, and has a JIS-C hardness of 70-85 and a thickness of 0.5-2 mm. The cover is made from a material mainly containing an ionomer resin, and has a JIS-C hardness of 85 or more and a thickness of 0.5-2 mm. A difference in JIS-C hardness between the intermediate layer and the surface of the solid core is in a range of 15 or less. A different in JIS-C hardness between the cover and the intermediate layer is in a range of 10 or more. The hardnesses of the solid core, the intermediate layer, and the cover satisfy a relationship of (hardness gradient from intermediate layer to cover)/(hardness gradient from core center to intermediate layer)null6. The dimples are arranged such that there is no great circle line not crossing any one of the dimples. The golf ball can exhibit a very soft hitting feel, an excellent durability, a low spin rate and a high hitting angle, and an increased carry due to a high resilience.

Abstract translation: 高尔夫球包括实芯，中间层和盖，其表面上形成有多个凹坑。 实心芯的中心JIS-C硬度为50-70，表面JIS-C硬度为60-80，直径为35-40mm。 中间层由主要含有离聚物树脂的材料制成，其JIS-C硬度为70-85，厚度为0.5-2mm。 盖由主要含有离聚物树脂的材料制成，JIS-C硬度为85以上，厚度为0.5〜2mm。 中间层与实心芯的表面之间的JIS-C硬度的差为15以下。 盖和中间层之间的JIS-C硬度不同在10以上。 实心芯，中间层和盖的硬度满足（从中间层到覆盖层的硬度梯度）/（从芯心中心到中间层的硬度梯度）的关系> = 6。 凹坑布置成使得没有大的圆形线不穿过任何一个凹坑。 高尔夫球可以表现出非常柔软的打击感，优异的耐久性，低旋转速度和高击球角度，并且由于高弹性而具有增加的进位。

公开(公告)号：US20040106478A1

公开(公告)日：2004-06-03

申请号：US10720522

申请日：2003-11-25

Applicant: BRIDGESTONE SPORTS CO., LTD.

Inventor： Junji Hayashi ,  Yasumasa Shimizu ,  Hiroshi Higuchi ,  Rinya Takesue

IPC: A63B037/12

CPC classification number: C08K5/098 ,  A63B37/0003 ,  A63B37/0006 ,  A63B37/0016 ,  A63B37/0021 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0064 ,  A63B37/0065 ,  A63B37/0083 ,  A63B37/06 ,  A63B37/12 ,  C08K3/013 ,  C08K5/14 ,  C08L9/00

Abstract: In a multi-piece solid golf ball comprising a solid core, a mantle and a cover, the solid core is made of a rubber composition comprising a base rubber containing a polybutadiene synthesized using a rare-earth catalyst, a small amount of organic peroxide, an unsaturated carboxylic acid and/or a metal salt thereof, an organic sulfur compound and an inorganic filler. The mantle is made of a thermoplastic resin composition. The cover is made primarily of a mixture of an ionomer resin-containing resin composition and an inorganic filler. This construction provides the golf ball with a combination of outstanding flight performance and soft feel with cover's scuff resistance and crack durability, that is unprecedented.

Abstract translation: 在包括实芯，地幔和盖子的多片固体高尔夫球中，实芯由橡胶组合物制成，该橡胶组合物包含含有使用稀土催化剂合成的聚丁二烯的基础橡胶，少量有机过氧化物， 不饱和羧酸和/或其金属盐，有机硫化合物和无机填料。 地幔由热塑性树脂组合物制成。 盖主要由含有离聚物树脂的树脂组合物和无机填料的混合物制成。 这种结构为高尔夫球提供了出色的飞行性能和柔软的手感，并具有前所未有的耐磨性和耐裂纹性。

公开(公告)号：US20040106473A1

公开(公告)日：2004-06-03

申请号：US10720475

申请日：2003-11-25

Applicant: BRIDGESTONE SPORTS CO., LTD.

Inventor： Junji Hayashi ,  Yasumasa Shimizu ,  Hiroshi Higuchi ,  Yasushi Ichikawa

IPC: A63B037/04 ,  A63B037/06 ,  A63B037/12

CPC classification number: A63B37/06 ,  A63B37/0003 ,  A63B37/0006 ,  A63B37/0016 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0022 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0064

Abstract: Disclosed herein is a two-piece golf ball formed of a solid core and a cover, the solid core being formed from a rubber composition composed of a rubber base material of polybutadiene synthesized by using a catalyst of rare earth element, a small amount of organic peroxide, an unsaturated carboxylic acid and/or a metal salt thereof, an organic sulfur compound, and an inorganic filler, and the cover being formed mainly from a thermoplastic polyurethane material. The two-piece golf ball is by far superior to conventional ones in flying performance, cover durability, coating durability, and shot feeling.

Abstract translation: 本发明公开了一种由实芯和盖形成的两件式高尔夫球，该实芯由橡胶组合物形成，该橡胶组合物由使用稀土元素催化剂，少量有机物合成的聚丁二烯橡胶基料 过氧化物，不饱和羧酸和/或其金属盐，有机硫化合物和无机填料，并且所述盖主要由热塑性聚氨酯材料形成。 两件式高尔夫球在飞行性能，覆盖耐久性，涂层耐久性和射击感上远优于常规高尔夫球。

公开(公告)号：US20040106471A1

公开(公告)日：2004-06-03

申请号：US10720446

申请日：2003-11-25

Applicant: BRIDGESTONE SPORTS CO., LTD.

Inventor： Junji Hayashi ,  Yasumasa Shimizu ,  Hiroshi Higuchi ,  Rinya Takesue

IPC: A63B037/04 ,  A63B037/06 ,  A63B037/12

CPC classification number: A63B37/06 ,  A63B37/0003 ,  A63B37/0016 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/002 ,  A63B37/0021 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0064 ,  A63B37/0076

Abstract: In a multi-piece solid golf ball comprising a solid core, a mantle and a cover, the solid core is made of a rubber composition that includes (A) a base rubber containing a polybutadiene synthesized using a rare-earth catalyst, (B) a small amount of organic peroxide, (C) an unsaturated carboxylic acid and/or a metal salt thereof, (D) an organic sulfur compound and (E) an inorganic filler. The mantle is made of a thermoplastic resin composition. The cover is made of a material composed of a heated mixture of (F) an olefin/unsaturated carboxylic acid copolymer, an olefin/unsaturated carboxylic acid/unsaturated carboxylic acid ester copolymer, or a metal ion neutralization product thereof, (G) a polyurethane elastomer, and (H) an organic or inorganic basic compound. This construction provides the golf ball with an outstanding flight performance, excellent scuff resistance and a soft feel on impact, and minimizes the decline in rebound by the ball at low temperature.

公开(公告)号：US20030109333A1

公开(公告)日：2003-06-12

申请号：US10267743

申请日：2002-10-10

Applicant: BRIDGESTONE SPORTS CO., LTD.

Inventor： Hisashi Yamagishi ,  Hiroshi Higuchi ,  Yasushi Ichikawa ,  Junji Hayashi

IPC: A63B037/12

CPC classification number: A63B37/12 ,  A63B37/0003 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0064 ,  A63B37/0076 ,  A63B37/008 ,  A63B37/0083 ,  A63B37/0084 ,  A63B37/0087 ,  A63B37/0092 ,  A63B37/0096 ,  Y10S525/902 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/24983 ,  Y10T428/2933 ,  Y10T428/2935 ,  Y10T428/2936 ,  Y10T428/2982 ,  Y10T428/2998

Abstract: A multi-piece solid golf ball comprises a core having a structure consisting of at least two layers and a cover on the core consisting of outer and inner cover layers. The outer cover layer has a Shore D hardness of 40-60 degrees. The inner cover layer has a Shore D hardness of up to 53 degrees and lower than that of the outer cover layer. The ball's carry is comparable to conventional solid golf balls and spin receptivity is approximate to wound golf balls while the ball is durable and offers pleasant feel.

Abstract translation: 多片实心高尔夫球包括具有由至少两层构成的结构的芯和由外盖层和内覆盖层构成的芯上的盖。 外覆盖层的肖氏D硬度为40-60度。 内覆盖层的肖氏D硬度高达53度且低于外覆盖层的硬度。 球的携带与传统的固体高尔夫球相当，并且旋转接受度接近伤口高尔夫球，而球是耐用的并且提供愉快的感觉。