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US 6,350,793 B1Granted
Method of improving scuff and cut resistance of ionomer covered golf ball
AssigneeSpalding Sports Worldwide, Inc.
InventorsThomas J. Kennedy, III, Mark L. Binette, R. Dennis Nesbitt, Michael J. Sullivan
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a game ball and method for making the same. The game ball has an ionomeric cover which includes a combination of ionomeric crosslinks and covalent crosslinks. The game ball cover is superior in at least one of cut resistance and scuff resistance to a conventional cover that does not have covalent crosslinks but is otherwise substantially identical in composition. The game ball cover of the invention is particularly useful for improving the durability of golf balls to be struck with sharp-grooved clubs.
Claims24
A golf ball comprising:
- a core including (i) a first polybutadiene rubber obtained utilizing a cobalt catalyst and having a Mooney viscosity in the range of from about 70 to about 83, and (ii) a blend of polybutadiene rubbers wherein each is obtained by utilizing a neodymium series catalyst and having a Mooney viscosity of from about 30 to about 70;
- and
- an ionomeric cover disposed about said core wherein said cover comprises an inner cover layer and an outer cover layer, further wherein the outer cover layer has a sufficient degree of crosslinking to impart to the cover an improved resistance to at least one of scuffing, cutting and heat.
Dependencies are inferred from the claim text.