Games using tangible projectile – Golf – Ball
Patent
1994-12-28
1997-02-11
Marlo, George J.
Games using tangible projectile
Golf
Ball
A63B 3706
Patent
active
056015020
ABSTRACT:
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 .alpha.,.beta.-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 .alpha.,.beta.-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.
REFERENCES:
patent: 4848770 (1989-07-01), Shoma
patent: 5002281 (1991-03-01), Nakahara et al.
patent: 5072944 (1991-12-01), Nakahara et al.
Hiraoka Hidenori
Koizumi Yoshimasa
Marlo George J.
Sumitomo Rubber Industries Ltd.
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