Multi-layer golf ball and composition

Details Multi-layer golf ball and composition Multi-layer golf ball and composition

1997-11-17

1999-10-12

Buttner, David

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525196, 525201, 473372, 473373, 473374, 473385, A63B 3712, A63B 3706

Patent

active

059656697

ABSTRACT:
A multi-layer golf ball comprising a core, a cover layer and a mantle layer disposed between the core and the cover. The cover layer consists essentially of at least a first and a second ionomer resin. The first resin is a copolymer of 16 to 35% by weight of an alpha, beta-unsaturated carboxylic acid and 84 to 65% by weight of an olefin, wherein about 10 to about 90% of the carboxyl groups of the copolymer are neutralized with a metal ion. The second resin is a terpolymer of 9 to 12% by weight of an alpha, beta-unsaturated carboxylic acid, 1 to 50% by weight n-alkyl acrylate or methacrylate and 38 to 90% by weight of an olefin, wherein about 10 to about 90% of the carboxyl groups of the terpolymer are neutralized with a metal ion. The mantle layer comprises a thermoplastic material, said thermoplastic material consisting essentially of polyetherester block copolymer.

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