Thick Outer Cover Layer Golf Ball
A golf ball including a low compression core having an outer surface and a geometric center and being formed from a substantially homogenous composition throughout, the core having a diameter of 1.18 inches to 1.40 inches, an Atti compression of 42 or less, and a coefficient of restitution of 0.750 to 0.790. An outer cover having a thickness of 0.14 inches to 0.16 inches and a Shore D hardness of 60 to 70 is disposed about the core. The outer surface has a first hardness and the geometric center has a second hardness, the first hardness being substantially the same as or lower than the second hardness to define a “negative” hardness gradient.
1 . A golf ball comprising:
a low compression core having an outer surface and a geometric center and being formed from a substantially homogenous composition throughout, the core having a diameter of 1.18 inches to 1.40 inches, an Atti compression of 42 or less, and a coefficient of restitution of 0.750 to 0.790; and
an outer cover having a thickness of 0.14 inches to 0.16 inches and having a Shore D hardness of 60 to 70;
wherein the outer surface has a first hardness and the geometric center has a second hardness, the first hardness being substantially the same as or lower than the second hardness.
2 . The golf ball of claim 1 , wherein the core compression is 20 or less.
3 . The golf ball of claim 1 , wherein the second hardness is about 0 Shore C to about 5 Shore C higher than the first hardness.
4 . The golf ball of claim 1 , wherein the core has a maximum hardness value and the second hardness is less than about 10 Shore C from the maximum hardness value.
5 . The golf ball of claim 4 , wherein the second hardness is less than about 5 Shore C from the maximum hardness value.
6 . A golf ball comprising:
a low compression core having a substantially homogenous composition throughout, an outer surface, and a geometric center, the core having a diameter of 1.20 inches to 1.36 inches, a compression of 30 or less, and a coefficient of restitution of 0.750 to 0.790 when measured at an incoming velocity of 125 ft/s; and
an outer cover having a thickness of 0.125 inches to 0.200 inches;
wherein the geometric center has a first hardness, the outer surface has a second hardness, and the core has a maximum hardness, the first hardness being substantially the same as or higher than the second hardness and is less than about 10 Shore C lower than the maximum hardness.
7 . The golf ball of claim 6 , wherein the first hardness is less than about 5 Shore C lower than the maximum hardness.
8 . The golf ball of claim 6 , wherein the second hardness is about 0 Shore C to about 10 Shore C lower than the first hardness.
9 . The golf ball of claim 8 , wherein the second hardness is about 0 Shore C to about 5 Shore C lower than the first hardness.
10 . The golf ball of claim 6 , wherein the core has a compression of 20 or less.
11 . The golf ball of claim 10 , wherein the core has a compression of 10 or less.
12 . The golf ball of claim 6 , wherein the composition further comprises a soft and fast agent
13 . A golf ball comprising:
a low compression core having a substantially homogenous thermoset rubber composition throughout, an outer surface having a first hardness, and a center having a second hardness, the first hardness being substantially the same as or lower than the second hardness to define a negative hardness gradient; and
an outer cover having a thickness of 0.125 inches to 0.200 inches;
wherein the core comprises a diene rubber composition, has an outer diameter of 1.18 inches to 1.40 inches, a compression of 30 or less, and a coefficient of restitution of 0.750 to 0.790 when measured at an incoming velocity of 125 ft/s, and wherein the golf ball has a compression of 75 to 110 and a coefficient of restitution of 0.810 or greater when measured at an incoming velocity of 125 ft/s.
14 . The golf ball of claim 13 , wherein the core has a diameter of 1.2 inches to 1.36 inches and a compression of 20 or less.
15 . The golf ball of claim 14 , wherein the core compression is 10 or less.
16 . The golf ball of claim 13 , wherein the core has a maximum hardness and the second hardness is less than about 5 Shore C lower than the maximum hardness.
17 . The golf ball of claim 13 , wherein the second hardness is about 0 Shore C to about 10 Shore C lower than the first hardness.
18 . The golf ball of claim 17 , wherein the second hardness is about 0 Shore C to about 5 Shore C lower than the first hardness.
19 . The golf ball of claim 13 , wherein the cover has a hardness of 70 Shore D or less.
20 . The golf ball of claim 13 , wherein the cover thickness is 0.14 inches to 0.16 inches.