Patent ID: 7238746

Claim:
A golf ball, comprising as a constituent component a hot molded product of the rubber composition, wherein the rubber composition comprises (A) a base rubber, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) an organic peroxide, wherein the base rubber (A) comprises (a-1) a methacryloxy and/or acryloxy-modified silicone rubber powder which is partially crosslinked, and wherein the base rubber (A) further comprises (a-2) a peroxide-crosslinkable rubber other than said methacryloxy and/or acryloxy-modified silicone rubber powder (a-1), wherein said peroxide-crosslinkable rubber (a-2) comprises a polybutadiene containing at least 40 wt % of cis-1,4 bonds and is present in an amount of not than 40% by weight based on the total weight of the base rubber (A), and wherein said methacryloxy and/or acryloxy-modified silicone rubber powder (a-1) is present in an amount of 60% by weight or more based on the total weight of the base rubber.