Golf ball

Details Golf ball Golf ball

2007-07-27

2009-12-29

Trimiew, Raeann (Department: 3711)

Games using tangible projectile

Golf

Ball

Reexamination Certificate

active

07637824

ABSTRACT:
The present invention provides a golf ball having a core and a cover of one or more layer, wherein the core is made of a material obtained by molding under heat a rubber composition which includes (a) a base rubber containing polybutadiene having a stress relaxation time (T80) of 3.5 or less, (b) an unsaturated carboxylic acid and/or a metal salt thereof, and (c) an organic peroxide, and wherein at least one layer of the cover is made of a material obtained by molding a mixture containing as the essential ingredients (A) a metal ion neutralized olefin-unsaturated carboxylic acid random copolymer having a Shore D hardness of at least 60, (B) an unsaturated fatty acid, and (C) a basic inorganic metal compound capable of neutralizing acid groups in components A and B. The golf ball has a good rebound, a good feel on impact, and excellent scuff resistance.

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