Medium gradient dual core golf ball
First Claim
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1. A golf ball comprising:
- an inner core layer having a first surface hardness and a geometric center hardness, the center hardness being less than the first surface hardness to define a first positive hardness gradient of about 1 to 12 Shore C;
an outer core layer having a second surface hardness greater than the geometric center hardness to define a second positive hardness gradient of about 12 to 22 Shore C; and
a cover layer disposed about the outer core layer;
wherein the first hardness gradient has a first slope, S1, and the second hardness gradient has a second slope, S2, and a ratio of the second slope, S2, to the first slope, S1, is about 1.0 or greater.
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Abstract
A golf ball includes an inner core layer having a first surface hardness and a geometric center hardness. The center hardness is less than the first surface hardness to define a first positive hardness gradient of about 1 to 12 Shore C. An outer core layer has a second surface hardness. A cover layer is formed over the outer core layer. The second outer surface hardness is greater than the geometric center hardness to define a second positive hardness gradient of about 12 to 22 Shore C.
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Citations
18 Claims
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1. A golf ball comprising:
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an inner core layer having a first surface hardness and a geometric center hardness, the center hardness being less than the first surface hardness to define a first positive hardness gradient of about 1 to 12 Shore C; an outer core layer having a second surface hardness greater than the geometric center hardness to define a second positive hardness gradient of about 12 to 22 Shore C; and a cover layer disposed about the outer core layer; wherein the first hardness gradient has a first slope, S1, and the second hardness gradient has a second slope, S2, and a ratio of the second slope, S2, to the first slope, S1, is about 1.0 or greater. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification