Multi-layer core golf ball
First Claim
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1. A golf ball comprising:
- an inner core layer formed from a first thermoset composition and having a diameter of from 0.50 inches to 0.75 inches and a specific gravity of from 0.90 g/cc to 1.18 g/cc;
an intermediate core layer formed from a first thermoplastic composition and having a thickness of from 0.01 inches to 0.06 inches, a surface hardness of greater than 60 Shore D, and a specific gravity of from 0.90 g/cc to 1.00 g/cc, wherein the first thermoplastic composition is a partially- or fully-neutralized ionomer composition;
an outer core layer formed from a second thermoset composition and having a thickness of from 0.10 inches to 0.25 inches, a surface hardness of from 20 Shore C to 80 Shore C, wherein the surface hardness of the outer core layer is greater than the surface hardness of the inner core layer; and
a cover.
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Abstract
Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises at least three layers, including at least one thermoset layer and at least one thermoplastic layer. The innermost core layer is relatively small, having a diameter of from 0.50 inches to 1.30 inches.
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Citations
2 Claims
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1. A golf ball comprising:
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an inner core layer formed from a first thermoset composition and having a diameter of from 0.50 inches to 0.75 inches and a specific gravity of from 0.90 g/cc to 1.18 g/cc; an intermediate core layer formed from a first thermoplastic composition and having a thickness of from 0.01 inches to 0.06 inches, a surface hardness of greater than 60 Shore D, and a specific gravity of from 0.90 g/cc to 1.00 g/cc, wherein the first thermoplastic composition is a partially- or fully-neutralized ionomer composition; an outer core layer formed from a second thermoset composition and having a thickness of from 0.10 inches to 0.25 inches, a surface hardness of from 20 Shore C to 80 Shore C, wherein the surface hardness of the outer core layer is greater than the surface hardness of the inner core layer; and a cover. - View Dependent Claims (2)
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Specification