GOLF BALL COMPOSITIONS
Disclosed herein are multilayer golf balls having a layer with a higher hardness and a lower flexural modulus than another layer.
1 . A golf ball comprising:
a first layer formed from a first composition and a second layer formed from a second composition,
wherein the Shore C hardness of the first composition is greater than the Shore C hardness of the second composition, and
wherein the flexural modulus of the first composition is less than the flexural modulus of the second composition.
2 . The golf ball of claim 1 , wherein the first composition has a Shore C hardness of 86 or greater.
3 . The golf ball of claim 1 , wherein the first composition has a flexural modulus of 40 ksi or less.
4 . The golf ball of claim 1 , wherein the second composition has a Shore C hardness of 86 or less.
5 . The golf ball of claim 1 , wherein the second composition has a flexural modulus of 41 ksi or greater.
6 . A golf ball comprising:
a solid, single layer core formed from a first composition,
an inner cover layer formed from a second composition, and
an outer cover layer,
wherein the first composition has a higher Shore C hardness than the second composition, and
wherein the first composition has a lower flexural modulus than the second composition.
7 . The golf ball of claim 6 , wherein the first composition has a Shore C hardness of 86 or greater.
8 . The golf ball of claim 6 , wherein the first composition has a flexural modulus of 40 ksi or less.
9 . The golf ball of claim 6 , wherein the second composition has a Shore C hardness of 86 or less.
10 . The golf ball of claim 6 , wherein the second composition has a flexural modulus of 41 ksi or greater.
11 . A golf ball comprising:
an inner core layer,
an outer core layer,
an inner cover layer, and
an outer cover layer;
wherein the composition used to form the outer core layer has a higher Shore C hardness than the composition used to form the inner cover layer; and
wherein the composition used to form the outer core layer has a lower flexural modulus than the composition used to form the inner cover layer.
12 . The golf ball of claim 11 , wherein the outer core layer composition has a Shore C hardness of 86 or greater.
13 . The golf ball of claim 11 , wherein the outer core layer composition has a flexural modulus of 46 ksi or less.
14 . The golf ball of claim 11 , wherein the inner cover layer composition has a Shore C hardness of 86 or less.
15 . The golf ball of claim 11 , wherein the inner cover layer composition has a flexural modulus of 48 ksi or greater.
16 . A golf ball comprising:
a solid, single layer core formed from a first composition,
an inner cover layer formed from a second composition, and
an outer cover layer,
wherein the second composition has a higher Shore C hardness than the first composition, and
wherein the second composition has a lower flexural modulus than the first composition.
17 . The golf ball of claim 16 , wherein the first composition has a Shore C hardness of 86 or less.
18 . The golf ball of claim 16 , wherein the first composition has a flexural modulus of 41 ksi or greater.
19 . The golf ball of claim 16 , wherein the second composition has a Shore C hardness of 86 or greater.
20 . The golf ball of claim 16 , wherein the second composition has a flexural modulus of 40 ksi or less.