Golf ball cover
AssigneeAcushnet Company
InventorBarbara Stefani
Life of this patent
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Abstract
A polymer blend and a golf ball employing a cover formed of that composition are disclosed. The polymer blend is made from about 95 to about 50 parts by weight of one or more sodium ionomer resins, one of which has a lower flexural modulus than the other sodium ionomer. About 20 to about 50 parts by weight of a lithium ionomer resin is included in the blend. The ball that employs the cover has excellent spin characteristics.
Claims24
A polymer composition comprising a blend of a lithium ionomer in an amount of from about 10 to about 30 parts by weight wherein the lithium ionomer has a flexural modulus of between about 60,000 and about 80,000 psi with one or more sodium ionomers in an amount of from about 90 to about 70 parts by weight, wherein at least one of said sodium ionomers is a terpolymer having butyl acrylate therein and having a flexural modulus of between about 1,000 and 20,000 psi.
A golf ball having a cover composition comprising a blend of a lithium ionomer with a first sodium ionomer and a second sodium ionomer,
- wherein the lithium ionomer is present in an amount of from about 10 to to about 30 phr wherein the lithium ionomer has a flexural modulus of from about 60,000 to about 80,000 psi, and
- the first sodium ionomer and the second sodium ionomer are present in a combined amount of from about 90 to about 70 phr, wherein at least one of the sodium ionomers is a terpolymer having butyl acrylate therein and having a flex modulus of from about 1,000 to about 20,000 psi.
A polymer composition comprising a blend of a from 10 to 30 parts by weight lithium ionomer with 90 to 70 parts by weight of a first sodium ionomer and a second sodium ionomer, wherein said first sodium ionomer has a flexural modulus of about one tenth of the flexural modulus of said second sodium ionomer.
Dependencies are inferred from the claim text.