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US 10,456,629 B1Granted
Graphene and carbon nanotube reinforced golf ball
AssigneeCallaway Golf Company
InventorsVijay Chavan, David Bartels
Life of this patent
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Abstract
A golf ball comprising an inner core comprising polybutadiene, and an outer core comprising a polybutadiene material, a graphene material and a carbon nanotube material (CNT) is disclosed herein. Improved durability of the core by using a mixture of graphene and CNT can result in higher mean time to fail (MTTF) upon repeated impact in a high speed testing device, or with a golf club in normal play.
Claims10
A golf ball comprising:
- an inner core comprising a polybutadiene material;
- an outer core comprising a polybutadiene material in an amount ranging from 40 to 90 weight percent, zinc diacrylate in an amount ranging from 10 to 50 weight percent, zinc oxide in an amount ranging from 1 to 30 weight percent, peroxide initiator in an amount ranging from 0.1 to 10 weight percent, a graphene material in an amount ranging from 0.01 to 6.0 weight percent of the outer core, and a carbon nanotube (CNT) material in an amount ranging from 0.01 to 6.0 weight percent of the outer core, wherein the graphene material has a surface area ranging from 150 m2/g to 1000 m2/g;
- and
- a cover layer disposed over the outer core;
- wherein the inner core has a deflection of more than 0.230 under a load of 200 pounds, and wherein the outer core over the inner core has a deflection of more than 0.080 under a load of 200 pounds.
2 more elements
A golf ball comprising:
- an inner core comprising a polybutadiene material;
- an outer core comprising a polybutadiene material, a graphene material in an amount ranging from 0.01 to 6.0 weight percent of the outer core, and a carbon nanotube (CNT) material in an amount ranging from 0.01 to 6.0 weight percent of the outer core, wherein the graphene material has a surface area ranging from 150 m2/g to 1000 m2/g;
- a mantle layer;
- and
- a cover;
- wherein the inner core has a deflection of more than 0.230 under a load of 200 pounds, and wherein the outer core over the inner core has a deflection of more than 0.080 under a load of 200 pounds.
3 more elements
Dependencies are inferred from the claim text.