Golf ball cores with improved durability
AssigneeAcushnet Company
InventorJeffrey L. Dalton
Life of this patent
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Abstract
The present invention is directed toward more durable golf ball cores and more durable golf balls. The golf balls of this invention comprise a cover and a core wherein the core may further comprise a center and one or more layers of a mantle disposed between the center and the cover. The core, the mantle or the layers of the mantle, comprise a mixture of one or more thermoset rubber materials and at least one compatible, modified, non-ionic polyolefin. The non-ionic polyolefin that is modified may be a homopolymer, copolymer, terpolymer, block copolymer or a mixture thereof that is present at about 0.5 to about 10 parts per hundred of the thermoset rubber material used in the core or core layer.
Claims15
A golf ball comprising a cover, wherein the cover has a thickness of from about 0.02 inch to about 0.08 inch and a Shore D hardness of from about 45 to about 70, and a core, wherein the core has a diameter of from about 1.25 inches to about 1.65 inches and an Atti compression of from about 60 to about 90, wherein the core comprises a blend of at least one thermoset rubber material and at least one non-ionic, modified polyolefin compatible with the at least one thermoset rubber material, wherein the non-ionic, modified polyolefin has a melting point below about 170° C. and an Izod Impact Resistance of at least about 1 ft. lb./in.
Dependencies are inferred from the claim text.