Use of an impact modifier in a low compression golf ball

1. A golf ball comprising:

a center core comprising a polybutadiene material and a methyl methacrylate, butadiene, styrene (MBS) with a weight percentage of MBS ranging from 0.5 to 5 weight percent of the center core;

an outer core disposed over the center core;

an inner mantle layer disposed over the outer core, the inner mantle layer having a thickness ranging from 0.030 inch to 0.090 inch, the inner mantle layer material having a plaque Shore D hardness ranging from 30 to 50;

a mantle layer disposed over the inner mantle layer, the mantle layer having a thickness ranging from 0.025 inch to 0.070 inch; and

a cover layer disposed over the mantle layer;

wherein the cover layer has a thickness ranging from 0.025 inch to 0.050 inch, wherein the cover layer has a Shore D hardness less than the hardness of the mantle layer, the mantle layer has a higher Shore D hardness than the inner mantle layer, the outer core has a higher Shore D hardness than the inner mantle layer and the center core.

2. A golf ball comprising:

a center core comprising a polybutadiene material and a methyl methacrylate, butadiene, styrene (MBS) with a weight percentage of MBS ranging from 0.5 to 5 weight percent of the center core;

an outer core disposed over the center core;

an inner mantle layer disposed over the outer core, the inner mantle layer having a thickness ranging from 0.070 inch to 0.090 inch, the inner mantle layer composed of an ionomer material, the inner mantle layer material having a plaque Shore D hardness ranging from 36 to 44;

a mantle layer disposed over the inner mantle layer; and

a cover layer disposed over the mantle layer;

wherein the cover layer has a lower Shore D hardness than the mantle layer, the mantle layer has a higher Shore D hardness than the inner mantle layer, the outer core has a higher Shore D hardness than the inner mantle layer and the center core.