Patent ID: 6241625
Filing Date: 2001-06-05
Classification: A63B

Abstract:
A golf ball comprising a cover member and a core member, whereinthe cover member contains:3 to 30 parts by weight of a thermoplastic elastomer containing polyamide;5 to 50 parts by weight of a terpolymer ionomer containing ethylene, (meth)acrylic acid, and (meth)acrylic ester;30 to 80 parts by weight of a copolymer ionomer containing ethylene and (meth)acrylic acid; and1 to 20 parts by weight of an epoxidized-diene-based block copolymer; andthe core member is formed by vulcanizing a rubber composition containing:100 parts by weight of a base rubber,A parts by weight of an .alpha., .beta.-unsaturated carboxylic acid or a metal salt thereof,B parts by weight of an organic peroxide, andC parts by weight of a sulfide,where A, B, and C satisfies the relationship:0.02.times.A.ltoreq.B+C.ltoreq.0.05.times.A,andA lies in the range from 25 to 45.