Golf balls comprising highly-neutralized acid polymers

A golf ball comprising:

• an inner core of a thermoset rubber and comprising:
• a spherical central portion having an outer surface;
• and
• a plurality of projections extending radially outward from the central portion, said projections having a base adjacent the outer surface, a free end, and each projection tapers from the base toward the free end, and each base being circular or conical, and each base having a diameter greater than the height of the projection;
• a non-wound outer core comprised of polymer neutralized with an organic acid or a salt thereof, the organic acid or salt thereof being present in an amount greater than about 10 weight percent such that the polymer is fully neutralized, and being disposed around the inner core to form a core so that the outer surface of the outer core has a compression of less than or equal to about 90 and a diameter of about 1.53 inches or greater;
• and
• a cover surrounding the inner core and the outer core, the cover comprising a castable reactive liquid material.

A golf ball comprising:

• an inner core comprised of a polymer neutralized with an organic acid or a salt thereof, the organic acid or salt thereof being present in an amount greater than about 10 weight percent such that the polymer is fully neutralized and including a substantially spherical outer surface that includes a plurality of projections formed so that gaps are formed surrounding each projection, and the projections having a maximum length greater than the maximum width;
• an outer core formed of a second material and being disposed around the inner core to form a core;
• and
• a cover surrounding the outer core.

A golf ball comprising:

• an inner core comprised of a polymer neutralized with an organic acid or a salt thereof, the organic acid or salt thereof being present in an amount greater than about 10 weight percent such that the polymer is fully neutralized and including a substantially spherical outer surface that includes a plurality of projections formed so that gaps are formed surrounding each projection, and the projections having a maximum length greater than the maximum width;
• an outer core formed of a second material and being disposed around the inner core to form a core;
• and
• a cover surrounding the outer core;
• wherein the core has an effective compression constant less than a sum of an inner core effective compression constant and an outer core effective compression constant.