Golf ball
AssigneeSumitomo Rubber Industries, Ltd.
InventorsKuniyasu Horiuchi, Seiichiro Endo
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Abstract
The present invention provides a golf ball having excellent impact resilience and good flying performance, which comprises a core and a cover covering the core, wherein the cover contains at least 20 % by weight of a carboxyl-rich ionomer resin prepared by neutralizing 15 to 80 mol % of carboxylic acid groups of an olefinic copolymer containing 16 to 30 % by weight of an alpha, beta-ethylenic unsaturated carboxylic acid with monovalent or divalent metal ions.
Claims8
A gold ball comprising a core and a cover covering said core, wherein said cover contains at least 20% by weight of a carboxyl-rich ionomer resin having a stiffness modulus of 3,000 to 6,000 Kgf/cm.sup.2, prepared by neutralizing 15 to 80 mol% of carboxylic acid groups of an olefinic copolymer containing 20 to 30% by weight of an .alpha.-.beta.-ethylenic unsaturated carboxylic acid with monovalent or divalent metal ions.
Dependencies are inferred from the claim text.