GOLF BALL WITH AN OUTER COVER OF POLYETHERESTER BLOCK COPOLYMER

摘要

A solid type golf ball comprising a central core and an outer cover for the core and having an excellent flight performance and durability and an acceptable "click" characteristics is presented. The main component of the outer cover of this golf ball is polyetherester block copolymer containing the following X, Y and Z units: X: Butylene terephthalate unit Y: Ester unit other than butylene terephthalate Z: Polyetherester unit derived from dicarboxylic acid component containing terephthalic acid and poly(alkylene oxide) glycol having a number average molecular weight of 400 through 3000, and in the following amounts: 30% by weight ? X ? 80% by weight 0% by weight ? Y ? 50% by weight 20% by weight ? Z ? 70% by weight.