Golf ball cover containing a blend of ionomer and plastomer, and method of making same
AssigneeSpalding Sports Worldwide, Inc.
InventorsEdward J. Kaltenbacher, Joseph Domine, Michael J. Sullivan
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a golf ball having a core and a cover comprising a blend of ionomer and plastomer. The golf ball has an impact resistance and cut resistance comparable to a ball having a non-plastomer cover and containing higher quantities of ionomer.
Claims24
A golf ball comprising
- a core;
- and
- a cover layer disposed about the core, the cover layer comprising an ionomer, a plastomer, and a thermoplastic elastomer, the plastomer having a dispersion index of 1.5 to 5 and including a copolymer of ethylene and at least one olefin comonomer, the comonomer constituting from 10% to 35% of the weight of the plastomer, the ionomer being an ethylene acrylic acid copolymer.
A golf ball having a core and a cover layer, the cover layer being formed from a blend comprising ionomer, plastomer and thermoplastic elastomer, the plastomer having a dispersion index of about 1.5 to 5 and comprising a copolymer of ethylene and at least one olefin comonomer, the comonomer being present in an amount of 10-35 wt % based upon the overall weight of the plastomer, wherein the golf ball exhibits a PGA compression of from about 80 to about 90.
A method of making a golf ball comprising the steps of:
- obtaining a golf ball core, and
- forming a cover over the core, the cover comprising a blend of ionomer, plastomer and thermoplastic elastomer, the plastomer having a dispersion index of about 1.5 to 5 and comprising a copolymer of ethylene and at least one olefin comonomer, the comonomer being present in an amount of 10-35 wt % based upon the overall weight of the plastomer, wherein the properties of the core and cover and the steps of their making are selected such that the golf ball exhibits a PGA compression of from about 80 to about 90.
Dependencies are inferred from the claim text.