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US 10,870,039 B1Granted
Golf ball core
AssigneeCallaway Golf Company
InventorHong G. Jeon
Life of this patent
Estimating the term…
Abstract
A golf ball with a center core comprising 1,4 polybutadiene with a cis content more than 50% and containing a metal salt of acrylate, wherein the 1,4 polybutadiene has 5 to 60 weight percent of a metal salt of acrylate, is disclosed herein. The metal salt of acrylate is preferably selected from zinc, magnesium, sodium, and calcium.
Claims11
A golf ball comprising:
- a center core formed from a mixture comprising 1,4 polybutadiene with a cis content more than 50% and containing a metal salt of acrylate, wherein the 1,4 polybutadiene has 5 to 60 weight percent of a metal salt of acrylate chemically attached to a main chain of the 1,4 polybutadiene, 0.4 to 2.5 weight percent graphene material, 1-30 weight percent polyisoprene, 10-50 weight percent zinc diacrylate, 1-30 weight percent zinc oxide, 1-20 weight percent zinc stearate, and 0.1-10 weight percent peroxide initiator;
- and
- a cover layer disposed over the center core.
A method for forming a core for a golf ball, the method comprising:
- mixing a core material comprising 1,4 polybutadiene with a cis content more than 50% and a metal salt of acrylate, wherein the 1,4 polybutadiene has 5 to 60 weight percent of metal salt of acrylate chemically attached to a main chain of the 1,4 polybutadiene;
- and
- compression molding a core from the core material;
- wherein the core material comprises 0.4 to 2.5 weight percent graphene material further, 10-50 weight percent zinc diacrylate, 1-30 weight percent zinc oxide, 1-20 weight percent zinc stearate, and 0.1-10 weight percent peroxide initiator.
1 more element
A golf ball comprising:
- an inner core formed from a mixture comprising 1,4 polybutadiene with a cis content more than 50% and containing a metal salt of acrylate, wherein the 1,4 polybutadiene has 5 to 60 weight percent of a metal salt of acrylate chemically attached to a main chain of the 1,4 polybutadiene, 0.4 to 2.5 weight percent graphene material, 1-30 weight percent polyisoprene, 10-50 weight percent zinc diacrylate, 1-30 weight percent zinc oxide, 1-20 weight percent zinc stearate, and 0.1-10 weight percent peroxide initiator;
- an outer core comprising 1,4 polybutadiene with a cis content more than 50% and containing a metal salt of acrylate, wherein the 1,4 polybutadiene has 5 to 60 weight percent of metal salt of acrylate;
- a mantle layer;
- a cover.
1 more element
Dependencies are inferred from the claim text.