Three-piece solid golf ball

Details Three-piece solid golf ball Three-piece solid golf ball

1990-04-04

1991-12-17

Marlo, George J.

Amusement devices: games

Board games, pieces, or boards therefor

Rotatably mounted board

273218, 273235R, 273230, A63B 3712

Patent

active

050729446

ABSTRACT:
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;

REFERENCES:
patent: 3313545 (1967-04-01), Bartsch
patent: 3784209 (1974-01-01), Berman et al.
patent: 4570937 (1986-02-01), Yamada
patent: 4625964 (1986-12-01), Yamada
patent: 4858924 (1989-08-01), Saito et al.
patent: 4919434 (1990-04-01), Saito

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