公开(公告)号：US20020119840A1

公开(公告)日：2002-08-29

申请号：US10022395

申请日：2001-12-20

申请人： BRIDGESTONE SPORTS CO., LTD.

发明人： Hiroshi Higuchi ,  Hirotaka Shimosaka ,  Junji Umezawa ,  Atsuki Kasashima ,  Yasushi Ichikawa ,  Rinya Takesue

IPC分类号： A63B037/14

CPC分类号： A63B37/06 ,  A63B37/0003 ,  A63B37/0004 ,  A63B37/0016 ,  A63B37/002 ,  A63B37/0031 ,  A63B37/0043 ,  A63B37/0062 ,  A63B37/0065 ,  A63B37/0076 ,  A63B37/12

摘要： In a multi-piece solid golf ball comprising a rubbery elastic solid core and a resin cover including at least an inner layer, an intermediate layer and an outer layer, the solid core undergoes a deflection of 1.6-6.0 mm under an applied load of 294 N (30 kgf), the cover inner layer has a Shore D hardness of 55-70, the cover intermediate layer has a Shore D hardness of 8-50 and a gage of 0.1-1.2 mm, and the cover outer layer has a Shore D hardness of 40-55. The ball prevents any undesired increase of spin upon driver shots without detracting from rebound, has good flight performance, and receives enough spin to facilitate control on short iron shots.

摘要翻译： 在包括橡胶弹性实心芯和至少包括内层，中间层和外层的树脂覆盖物的多件式固体高尔夫球中，实心芯在施加的负荷为294的情况下经历1.6-6.0mm的偏转 N（30kgf）​​，盖内层的肖氏D硬度为55-70，盖中间层的肖氏D硬度为8〜50，表层为0.1〜1.2mm，盖外层具有肖氏 D硬度为40-55。 球防止驾驶员射击的旋转不希望的增加，而不会降低回弹，具有良好的飞行性能，并且接收足够的旋转以便于短铁杆的控制。

公开(公告)号：US20020055400A1

公开(公告)日：2002-05-09

申请号：US09906844

申请日：2001-07-18

申请人： BRIDGESTONE SPORTS CO., LTD.

发明人： Hiroshi Higuchi ,  Hirotaka Shimosaka ,  Yasushi Ichikawa ,  Rinya Takesue

IPC分类号： A63B037/12 ,  A63B037/14 ,  A63B037/06

CPC分类号： A63B37/0004 ,  A63B37/0012 ,  A63B37/0017 ,  A63B37/0018 ,  A63B37/0019 ,  A63B37/002 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0035 ,  A63B37/0043 ,  A63B37/0047 ,  A63B37/0063 ,  A63B37/0064 ,  A63B37/0066 ,  A63B37/0076 ,  A63B37/008 ,  A63B37/0083 ,  A63B37/0092 ,  A63B37/0096 ,  A63B37/12 ,  C08L23/08 ,  C08L23/0876 ,  C08L67/02 ,  C08L75/04 ,  C08L2205/02 ,  C08L2666/04

摘要： In a multi-piece solid golf ball comprising a solid core and a cover of two inner and outer layers enclosing the solid core, the solid core has a deflection of at least 1.1 mm under an applied load of 294 N (30 kgf) and a surface and a center, the surface-center hardness difference given as a JIS-C hardness at the core surface minus a JIS-C hardness at the core center is greater than 15 units, the cover inner layer is formed of a resin composition comprising as essential components, (a) an olefin-unsaturated carboxylic acid random copolymer, an olefin-unsaturated carboxylic acid-unsaturated carboxylate random copolymer, a metal ion neutralized product of each copolymer, or a mixture of each copolymer and the neutralized product, (b) a fatty acid having a molecular weight of at least 280 or derivative thereof, and (c) a basic inorganic metal compound capable of neutralizing acid groups in components (a) and (b), the Shore D hardness of the cover inner layer, the Shore D hardness of the cover outer layer, and the hardness relationship between the cover inner layer and the cover outer layer are adjusted, and the sum of dimple trajectory volumes each obtained by multiplying the volume of a dimple by the square root of a dimple diameter is optimized.

摘要翻译： 在包括实心芯和封闭实心芯的两个内层和外层的盖的多片实心高尔夫球中，实芯在294N（30kgf）​​的施加载荷下具有至少1.1mm的偏转，并且 表面和中心，在芯部表面的JIS-C硬度减去中心的JIS-C硬度给出的表面中心硬度差大于15个单位，盖内层由树脂组合物形成，该树脂组合物包含 必要成分，（a）烯烃 - 不饱和羧酸无规共聚物，烯烃 - 不饱和羧酸 - 不饱和羧酸酯无规共聚物，各共聚物的金属离子中和物，或各共聚物与中和物的混合物，（b） 分子量至少为280的脂肪酸或其衍生物，和（c）能够中和组分（a）和（b）中的酸基的碱性无机金属化合物，所述盖内层的肖氏D硬度， 肖氏D硬度 覆盖外层，并且调整盖内层和盖外层之间的硬度关系，并且优化通过将凹坑的体积乘以凹坑直径的平方根而获得的凹坑轨迹体积的总和。