Three-piece solid golf ball
AssigneeSumitomo Rubber Industries, Ltd.
InventorsAkihiro Nakahara, Mikio Yamada, Tadahiro Ebisuno, Takashi Sasaki, Kengo Oka
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AssigneeSumitomo Rubber Industries, Ltd.
InventorsAkihiro Nakahara, Mikio Yamada, Tadahiro Ebisuno, Takashi Sasaki, Kengo Oka
Estimating the term…
Disclosed is a large size three piece solid golf ball comprising a center, an outer layer covering said center to form a solid core and a cover covering said solid core, wherein said center has a diameter of 15 to 24 mm and a center hardness of 25 to 50 (JIS-C), prepared from a rubber composition comprising 100 parts by weight of cis-1,4-polybutadiene, 9 to 20 parts by weight of zinc acrylate and 3 to 150 parts by weight of a zinc oxide, said solid core has a diameter of 36 to 40 mm and a surface hardness of 70 to 90 (JIS-C), a difference between the center hardness and the surface hardness of the solid core is 20 or more and the specific gravity of the center and the outer layer has the following relation; a specific gavity of the center.gtoreq.a specific gravity of the outer layer, and the specific gravity of the center.gtoreq.1.1.
A large size three piece solid golf ball comprising a center core, an outer layer covering said center core to form a solid core and a cover covering said solid core, wherein said center has a diameter of 15 to 24 mm and a center hardness of 25 to 50 (JIS-C), prepared from a rubber composition comprising 100 parts by weight of cis-1,4-polybutadiene, 9 to 20 parts by weight of zinc acrylate and 3 to 150 parts by weight of zinc oxide, said solid core has a diameter of 36 to 40 mm and a surface hardness of 70 to 90 (JIS-C), a difference between the center hardness and the surface hardness of the solid core is 20 or more and the specific gravity of the center core and the outer layer has the following relation;
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