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AssigneesBridgestone Tire Company Limited, Toray Industries, Inc.
InventorsNobuyuki Kataoka, Tasuku Saito, Tsutomu Matsunaga, Chiaki Tanaka, Yoko Furuta, Nagayoshi Naito
Estimating the term…
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 acceptable "click" characteristics is presented. The main component of the outer cover of this golf ball is a 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 a dicarboxylic acid component containing terephthalic acid and poly(alkylene oxide) glycol having a number average molecular weight of 400 through 3000, wherein the X, Y and Z units are present in the following amounts: 30% by weight .ltoreq.X.ltoreq.80% by weight 0% by weight .ltoreq.Y.ltoreq.50% by weight 20% by weight .ltoreq.Z.ltoreq.70% by weight.
In a solid type golf ball comprising a central core and an outer cover for the core, the improvement wherein the main component of the outer cover is at least one polyetherester block copolymer containing the following X, Y and Z units:
A solid type golf ball comprising a central core and an outer cover for the core, wherein the main component of the outer cover is at least one polyetherester block copolymer containing the following X, Y and Z units:
Dependencies are inferred from the claim text.