Thread wound golf ball

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525 74, 473359, 473365, A63B 3712

Patent

active

059488590

ABSTRACT:
A thread wound golf ball having good shot feel and controllability as well as excellent flight performance which comprises a center composed of a vulcanized molded article of a rubber composition, a thread rubber layer formed on the center and a cover covering the thread rubber layer, wherein the center has a diameter of from 30 to 38 mm and a deformation amount, formed by applying an initial load of 10 kg to a final load of 30 kg to the center, of from 1 to 2.5 mm and the cover is formed from a heated mixture of an ionomer resin, an maleic anhydride-modified thermoplastic resin and an epoxidated thermoplastic resin having a JIS-A hardness of 30 to 90.

REFERENCES:
patent: 5543467 (1996-08-01), Hamada
patent: 5631324 (1997-05-01), Rajagopalan

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