Golf ball

Details Golf ball Golf ball

1994-12-29

1996-12-24

Marlo, George J.

Games using tangible projectile

Golf

Ball

473373, 473378, A63B 3712

Patent

active

055869505

ABSTRACT:
The present invention provides a golf ball which exhibits a large flying distance and is superior in stability of iron shot and hit feeling.
The golf ball comprises a core and a cover for covering the core, the cover comprising two layers of an inner layer cover and an outer layer cover. A stiffness modulus of the inner layer cover is 3,000 to 5,500 kg/cm.sup.2 and that of the outer layer cover being 1,000 to 2,500 kg/cm.sup.2. A thickness of the inner layer cover is 0.5 to 2.5 mm and that of the outer layer being 0.5 to 2.5 mm. A total thickness of the inner layer cover and the outer layer cover is 1.0 to 4.5 mm. A base resin of the inner layer cover contains 5 to 100% by weight of an ionomer neutralized with a zinc ion.

REFERENCES:
patent: 4919434 (1990-04-01), Saito
patent: 5304608 (1994-04-01), Yabuki et al.
patent: 5314187 (1994-05-01), Proudfit
patent: 5439227 (1995-08-01), Egashira et al.
patent: 5490674 (1996-02-01), Hamada et al.

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