Two piece golf ball

Details Two piece golf ball Two piece golf ball

1992-10-30

1994-04-19

Jagannathan, Vasu S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

273 62, 273230, C08F27902, A63B 3700, A63B 3702

Patent

active

053046080

ABSTRACT:
The present invention provides a two piece golf ball having excellent hit feeling, which comprises a core and a cover, wherein the core has a deformation (compression deformation) of 3.7 to 4.5 mm caused by applying from 10 kg of an initial load to 130 kg of a final load, and is prepared from a rubber composition comprising 100 parts by weight of a cis-1,4-polybutadiene rubber and 20 to 30% by weight of a metal salt of an unsaturated carboxylic acid, and wherein the cover has a stiffness modulus of 3,700 to 4,500 kg/cm.sup.2 and a thickness of 2.2 to 2.9 mm.

REFERENCES:
patent: 4266772 (1989-05-01), Martin et al.
patent: 4858924 (1989-08-01), Saito et al.
patent: 5019319 (1991-05-01), Nakamura et al.
patent: 5131662 (1992-07-01), Pollitt
Database WPIL, Section Ch, Week 8415, Derwent Publications Ltd., London, GB; Class A, An 84-091534 & JP-A-59 037 961 (Sumitomo Rubber Industries Ltd.) Mar. 1, 1984, abstract.

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