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US 10,376,743 B1Granted
Graphene core for a golf ball with a soft cover
AssigneeCallaway Golf Company
InventorsPetra Petrich, David Bartels, Hong G. Jeon, Carl Brown
Life of this patent
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Abstract
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.
Claims18
A golf ball comprising:
- an inner core comprising a polybutadiene material;
- an outer core comprising polybutadiene material and a graphene material;
- and
- a cover layer disposed over the outer core, the cover layer comprising 30 to 40 wt % of a highly neutralized polymer, 10 to 20 wt % of a first ionomer, 10 to 20 wt % of a second ionomer, 15 to 25 wt % of a masterbatch comprising from 20 to 50 wt % of a paraloid impact modifier, and 5 to 15 wt % of a color masterbatch;
- 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 more elements
A golf ball comprising:
- an inner core comprising a polybutadiene and a graphene material;
- an outer core comprising a polybutadiene and a graphene material;
- and
- a cover layer disposed over the outer core, the cover layer comprising 30 to 45 wt % of a highly neutralized polymer, 10 to 20 wt % of a first ionomer, 10 to 20 wt % of a second ionomer, and 15 to 25 wt % of a masterbatch comprising from 20 to 50 wt % of a paraloid impact modifier;
- 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 more elements
A golf ball comprising:
- an inner core comprising a polybutadiene and a graphene material;
- an outer core comprising a polybutadiene and a graphene material;
- a mantle layer;
- and
- a cover layer disposed over the mantle layer, the cover layer comprising 30 to 40 wt % of a highly neutralized polymer, 10 to 20 wt % of a first ionomer, 10 to 20 wt % of a second ionomer, 3- to 20 wt % of a paraloid impact modifier;
- wherein the cover layer has a thickness ranging from 0.025 inch to 0.055 inch;
- 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.
5 more elements
Dependencies are inferred from the claim text.