Graphene core for a golf ball with a soft cover
A golf ball with a core comprising polybutadiene and graphene, and a soft cover is disclosed herein. The golf ball has a dual core with an outer core comprising polybutadiene and graphene. The soft cover is preferably composed of a highly neutralized polymer, a first ionomer, a second ionomer, and a paraloid impact modifier.
1. A golf ball comprising:
an inner core comprising a polybutadiene material, wherein the inner core has a deflection of at least 0.23 under a load of 220 pounds;
an outer core comprising polybutadiene material; and
a cover layer disposed over the outer core, the cover layer consisting essentially of 10 to 30 wt % of a highly neutralized polymer, 10 to 90 wt % of a first ionomer, 0 to 30 wt % of a second ionomer, 0 to 30 wt % of a third ionomer, 15 to 25 wt % of a masterbatch comprising from 15 to 30 wt % of an impact modifier, and 1 to 10 wt % of a color masterbatch, wherein the impact modifier is at least one of methyl methacrylate-butadiene-styrene polymer (MBS) impact-property modifiers for poly(vinyl chloride) or acrylic/methacrylic core-shell modifiers for polycarbonate;
wherein the golf ball has a diameter of at least 1.68 inches, a mass lower than 45.93 grams, and a COR of at least 0.790.
2. The golf ball according to claim 1 wherein the cover layer has a Shore D hardness ranging from 35 to 60.
3. The golf ball according to claim 1 wherein the outer core has a tensile modulus ranging from 8 MPa to 10 MPa.
4. A golf ball comprising:
an inner core comprising a polybutadiene, wherein the inner core has a deflection of at least 0.23 under a load of 220 pounds;
an outer core comprising a polybutadiene; and
a cover layer disposed over the outer core, the cover layer consisting essentially of 10 to 30 wt % of a highly neutralized polymer, 10 to 30 wt % of a first ionomer, 10 to 30 wt % of a second ionomer, 10 to 30 wt % of a third ionomer, 15 to 25 wt % of a masterbatch comprising from 15 to 30 wt % of an impact modifier, and 1 to 10 wt % of a color masterbatch, wherein the impact modifier is at least one of methyl methacrylate-butadiene-styrene polymer (MBS) impact-property modifiers for poly(vinyl chloride), and acrylic/methacrylic core-shell modifiers for polycarbonate;
wherein the golf ball has a diameter of at least 1.68 inches, a mass lower than 45.93 grams, and a COR of at least 0.790.
5. The golf ball according to claim 4 wherein the outer core has a tensile modulus ranging from 8 MPa to 10 MPa.
6. A golf ball comprising:
an inner core comprising a polybutadiene, wherein the inner core has a deflection of at least 0.23 under a load of 220 pounds;
an outer core comprising a polybutadiene;
a mantle layer; and
a cover layer disposed over the outer core, the cover layer consisting essentially of 10 to 30 wt % of a highly neutralized polymer, 10 to 30 wt % of a first ionomer, 10 to 30 wt % of a second ionomer, 10 to 30 wt % of a third ionomer, 15 to 25 wt % of a masterbatch comprising from 15 to 30 wt % of an impact modifier, and 1 to 10 wt % of a color masterbatch; wherein the cover layer has a thickness ranging from 0.025 inch to 0.055 inch, wherein the impact modifier is at least one of methyl methacrylate-butadiene-styrene polymer (MBS) impact-property modifiers for poly(vinyl chloride), and acrylic/methacrylic core-shell modifiers for polycarbonate;
wherein the cover layer has a Shore D hardness ranging from 35 to 60;
wherein the golf ball has a diameter of at least 1.68 inches, a mass lower than 45.93 grams, and a COR of at least 0.790.