Multi-layer core golf ball
Golf balls consisting of a multi-layer core and a cover are disclosed. The multi-layer core consists of a center and an outer core layer that are both soft relative to a hard intermediate core layer. The outer core layer is thin relative to the center and the outer core layer.
1. A golf ball comprising a core and a cover, wherein the core has an overall diameter of from 1.40 inches to 1.60 inches and consists of:
a center having a diameter of from 0.50 inches to 1.50 inches and a center hardness (H) of from 20 Shore C to 70 Shore C;
an intermediate core layer having a surface hardness (I) of from 70 Shore D to 80 Shore D; and
an outer core layer having a surface hardness (S) of from 20 Shore C to 70 Shore C; wherein H<I and S<I.
2. The golf ball of claim 1 , wherein the center has a diameter of from 0.75 inches to 1.50 inches.
3. The golf ball of claim 2 , wherein the outer core layer has a thickness of from 0.01 inches to 0.15 inches.
4. The golf ball of claim 2 , wherein the outer core layer has a thickness of from 0.03 inches to 0.07 inches.
5. The golf ball of claim 1 , wherein the center hardness (H) is from 35 Shore C to 70 Shore C.
6. The golf ball of claim 1 , wherein the center hardness (H) is from 55 Shore C to 60 Shore C.
7. The golf ball of claim 6 , wherein the intermediate core layer has a surface hardness (I) of from 50 Shore C to 90 Shore C.
8. The golf ball of claim 1 , wherein the center hardness (H) is from 55 Shore C to 60 Shore C and the intermediate layer has a surface hardness (I) of from 85 Shore C to 90 Shore C.
9. The golf ball of claim 1 , wherein the center is formed from a first rubber composition, the intermediate layer is formed from a second rubber composition, and the outer core layer is formed from a third rubber composition.
10. The golf ball of claim 1 , wherein the center, the intermediate layer, and the outer core layer each have a specific gravity of from 1.05 g/cc to 1.25 g/cc.
11. A golf ball comprising a core and a cover, wherein the core has an overall diameter of from 1.40 inches to 1.60 inches and consists of:
a center having a diameter of from 0.50 inches to 1.50 inches and a center hardness (H) of from 20 Shore C to 70 Shore C;
an intermediate core layer having a surface hardness (I) of from 70 Shore D to 80 Shore D; and
an outer core layer having a surface hardness (S) of from 20 Shore C to 70 Shore C; wherein H<S and S<I, and wherein S−H=D where D is an integer from 1 to 22.
12. The golf ball of claim 11 , wherein the center has a diameter of from 0.75 inches to 1.50 inches, and the outer core layer has a thickness of from 0.03 inches to 0.07 inches.
13. The golf ball of claim 11 , wherein center hardness (H) is from 35 Shore C to 70 Shore C, the intermediate core layer has a surface hardness (I) of from 70 Shore D to 80 Shore D, and the outer core layer has a surface hardness (S) of from 45 Shore C to 70 Shore C.
14. The golf ball of claim 11 , wherein the center hardness (H) is from 55 Shore C to 60 Shore C, the intermediate layer has a surface hardness (I) of from 70 Shore D to 80 Shore D, and the outer core layer has a surface hardness (S) of from 55 Shore C to 60 Shore C.
15. The golf ball of claim 11 , wherein the center is formed from a first rubber composition, the intermediate layer is formed from a second rubber composition, and the outer core layer is formed from a third rubber composition.
16. The golf ball of claim 11 , wherein the center, the intermediate layer, and the outer core layer each have a specific gravity of from 1.05 g/cc to 1.25 g/cc.
17. A golf ball comprising a core and a cover, wherein the core has an overall diameter of from 1.40 inches to 1.60 inches and consists of:
a center having a diameter of from 0.50 inches to 1.50 inches and a center hardness (H) of from 20 Shore C to 70 Shore C;
an intermediate core layer having a surface hardness (I) of 70 Shore D to 80 Shore D; and
an outer core layer having a surface hardness (S) of from 20 Shore C to 70 Shore C; wherein S<H and H<I, and wherein H−S=D where D is an integer from 1 to 22.
18. The golf ball of claim 17 , wherein the center has a diameter of from 0.75 inches to 1.50 inches, and the outer core layer has a thickness of from 0.03 inches to 0.07 inches.
19. The golf ball of claim 17 , wherein center hardness (H) is from 45 Shore C to 70 Shore C, the intermediate core layer has a surface hardness (I) of from 70 Shore D to 80 Shore D, and the outer core layer has a surface hardness (S) of from 35 Shore C to 70 Shore C.
20. The golf ball of claim 17 , wherein the center hardness (H) is from 55 Shore C to 60 Shore C, the intermediate layer has a surface hardness (I) of from 70 Shore D to 80 Shore D, and the outer core layer has a surface hardness (S) of from 55 Shore C to 60 Shore C.
21. The golf ball of claim 17 , wherein the center is formed from a first rubber composition, the intermediate layer is formed from a second rubber composition, and the outer core layer is formed from a third rubber composition.
22. The golf ball of claim 11 , wherein the center, the intermediate layer, and the outer core layer each have a specific gravity of from 1.05 g/cc to 1.25 g/cc.
23. A golf ball comprising a core and a cover, wherein the core has an overall diameter of from 1.40 inches to 1.60 inches and consists of:
a center having a diameter of from 0.75 inches to 1.50 inches and a center hardness (H) of from 50 Shore C to 60 Shore C;
an intermediate core layer having a surface hardness (I) of from 70 Shore D to 80 Shore D; and
an outer core layer having a thickness of from 0.03 inches to 0.07 inches and a surface hardness (S) of from 50 Shore C to 60 Shore C.
24. The golf ball of claim 23 , wherein the center is formed from a first rubber composition, the intermediate layer is formed from a second rubber composition, and the outer core layer is formed from a third rubber composition.
25. The golf ball of claim 23 , wherein the center, the intermediate layer, and the outer core layer each have a specific gravity of from 1.05 g/cc to 1.25 g/cc.