Golf ball cover of neutralized poly(ethylene-acrylic acid) copolymer
OwnerMichael J. Sullivan, Terence Melvin +1inventors
InventorsMichael J. Sullivan, Terence Melvin, R. Dennis Nesbitt
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Abstract
An improved golf ball comprising a core and a cover therefor, said cover comprises singularly or blends of a zinc neutralized ethylene-acrylic acid copolymer and a sodium neutralized ethylene-acrylic acid copolymer, or a blend of two or more zinc-neutralized ethylene-acrylic acid copolymers and a sodium-neutralized ethylene acrylic acid copolymer.
Claims9
A golf ball comprising a core and a cover, wherein said cover comprises a blend of from about 10% to about 90% by weight of an ethylene-acrylic acid copolymer which is neutralized with a sodium ion, and about 90% to 10% by weight of an ethylene-acrylic acid copolymer which is neutralized with a zinc ion.
A golf ball comprising a core and a cover, wherein said cover comprises a blend of from about 10% to about 90% by weight of an ethylene-acrylic acid copolymer containing about 11% by weight acrylic acid having about 40% of the carboxylic acid groups neutralized with sodium ions, and from about 90% to about 10% by weight of at least one ethylene-acrylic acid copolymer containing from about 11% to about 16% by weight acrylic acid with from about 10% to about 40% of the carboxylic acid groups neutralized by zinc ions and about 2.4% by weight of additives compatible therewith.
Dependencies are inferred from the claim text.