Multi-layer core golf ball
First Claim
Patent Images
1. A golf ball consisting essentially of:
- an inner core layer formed from a first diene rubber composition and having a diameter of from 1.000 inches to 1.580 inches, a center hardness of from 40 Shore C to 65 Shore C, and a surface hardness of from 50 Shore C to 85 Shore C;
a first intermediate core layer formed from an ionomer composition and having a thickness of from 0.020 inches to 0.070 inches;
a second intermediate core layer formed from a thermosetting polymer composition excluding diene rubber compositions, and having a thickness of from 0.005 inches to 0.035 inches and a surface hardness of 85 Shore C or greater;
an outer core layer formed from a second diene rubber composition and having a thickness of from 0.020 inches to 0.050 inches and a surface hardness of 50 Shore C or greater; and
a cover layer having a thickness of from 0.010 inches to 0.050 inches and formed from a composition having a material hardness of from 30 Shore D to 65 Shore D.
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Accused Products
Abstract
Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core comprises at least one intermediate core layer formed from a thermoset composition other than diene rubber.
30 Citations
4 Claims
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1. A golf ball consisting essentially of:
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an inner core layer formed from a first diene rubber composition and having a diameter of from 1.000 inches to 1.580 inches, a center hardness of from 40 Shore C to 65 Shore C, and a surface hardness of from 50 Shore C to 85 Shore C; a first intermediate core layer formed from an ionomer composition and having a thickness of from 0.020 inches to 0.070 inches; a second intermediate core layer formed from a thermosetting polymer composition excluding diene rubber compositions, and having a thickness of from 0.005 inches to 0.035 inches and a surface hardness of 85 Shore C or greater; an outer core layer formed from a second diene rubber composition and having a thickness of from 0.020 inches to 0.050 inches and a surface hardness of 50 Shore C or greater; and a cover layer having a thickness of from 0.010 inches to 0.050 inches and formed from a composition having a material hardness of from 30 Shore D to 65 Shore D. - View Dependent Claims (2, 3, 4)
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Specification