Multi-layer core golf ball
Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises at least one intermediate core layer formed from a metallic, composite, or inorganic/organic hybrid composition.
1. A golf ball comprising:
a multilayer inner core having a diameter of from 1.000 inches to 1.580 inches, a center hardness of from 40 Shore C to 70 Shore C, an outer surface hardness of from 50 Shore C to 95 Shore C, and comprising a center formed from a first thermoset composition and an additional inner core layer formed from a thermoplastic composition;
an intermediate core layer having a thickness of from 0.010 inches to 0.070 inches, an outer surface hardness of from 65 Shore D to 95 Shore D, and formed from a composition selected from the group consisting of metallic, composite, and inorganic/organic hybrid compositions;
an outer core layer having a thickness of from 0.010 inches to 0.075 inches, an outer surface hardness of from 45 Shore C to 90 Shore C, and formed from a second thermoset composition; 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.
2. The golf ball of claim 1 , wherein the diameter of the inner core is from 1.400 inches to 1.490 inches.
3. The golf ball of claim 1 , wherein the center hardness of the inner core is from 50 Shore C to 70 Shore C.
4. The golf ball of claim 1 , wherein the outer surface hardness of the inner core is from 70 Shore C to 95 Shore C.
5. The golf ball of claim 1 , wherein the outer surface hardness of the intermediate core layer is from 75 Shore D to 95 Shore D.
6. The golf ball of claim 1 , wherein the outer surface hardness of the outer core layer is from 60 Shore C to 90 Shore C.