Golf ball cover compositions
AssigneeSpalding Sports Worldwide, Inc.
InventorsMichael J. Sullivan, Robert A. Weiss
Life of this patent
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Abstract
The present invention is directed to golf ball cover compositions containing blends of high or low carboxylic acid based copolymers and ethylene copolymers such as ethylene alkyl acrylates. The carboxylic acid groups of the blends are neutralized with metal cations. Golf balls produced with the cover molded thereon exhibit desired properties of distance and high coefficient of restitution without substantially sacrificing and/or improving characteristics like playability and durability when compared to existing covers comprising ionomeric resin blends.
Claims18
A golf ball having a core and a cover wherein said cover comprises about 30 to 90 parts by weight of a carboxylic acid/α-olefin copolymer wherein the carboxylic acid has from about 3 to 8 carbon atoms and the α-olefin has from about 2 to 10 carbon atoms and about 10 to 90% of carboxyl groups in the carboxylic acid are neutralized by a metal cation;
- and said cover further comprises about 10 to 70 parts by weight of an ethylene/alkyl acrylate copolymer which contains up to about 30% weight alkyl acrylate.
A golf ball having a core and a cover wherein said cover comprises about 30 to 90 parts by weight of a carboxylic acid/α-olefin copolymer wherein the carboxylic acid has from about 3 to 8 carbon atoms and further comprises a softening comonomer and the α-olefin has from about 2 to 10 carbon atoms and about 10 to 90% of carboxyl groups in the carboxylic acid are neutralized by a metal cation;
- and said cover further comprises about 10 to 70 parts by weight of an ethylene/alkyl acrylate copolymer which contains up to about 30% weight alkyl acrylate.
Dependencies are inferred from the claim text.