Golf ball core composition having copper
AssigneeAcushnet Company
InventorMichael D. Jordan
Life of this patent
Estimating the term…
Abstract
A golf ball with core composition comprising polybutadiene, zinc oxide, copper and a metal salt of a material selected from the group consisting of diacrylates, dimethacrylates and monomethacrylates is described. The amount of the copper is sufficient to reduce the compression of a molded golf ball core by at least about 5 compression points compared to a molded core consisting of the same mixture wherein at least one other filler is substituted in place of the copper.
Claims25
A golf ball comprising a cover and a core, wherein the core comprises at least one layer of a material that is a mixture comprising:
- (1) polybutadiene, (2) zinc oxide, (3) a metal salt of a material selected from the group consisting of diacrylates, dimethacrylates, and monomethacrylates, and (4) elemental copper, wherein the amount of the elemental copper is sufficient to reduce the compression a molded golf ball core by at least about 5 compression points compared to a molded core consisting of the same mixture wherein at least one other filler is substituted in place of the elemental copper.
A golf ball core composition comprising:
- (1) polybutadiene, (2) a metal salt of a material selected from the group consisting of diacrylates, dimethacrylates, and monomethacrylates, (3) zinc oxide and (4) elemental copper in an amount of about 0.1 to 50 parts per 100 parts of said polybutadiene, wherein the amount of the elemental copper is sufficient to reduce the compression of a molded golf ball core by at least about 5 compression points compared to a molded core consisting of the same mixture wherein at least one other filler is substituted in place of the elemental copper.
A method of manufacturing a golf ball, which comprises:
- forming a first mixture comprising:
- (1) polybutadiene, (2) elemental copper in an amount of about 0.1 to 50 parts per 100 parts of polybutadiene;
- and (3) from about 10 to 50 parts per 100 parts of polybutadiene of a metal salt of a material selected from the group consisting of diacrylates, dimethacrylates, and monomethacrylates;
- combining at least one free radical initiator with the first mixture to form a golf ball core composition, wherein the amount of the elemental copper is sufficient to reduce the compression of a molded golf ball core by at least about 5 compression points compared to a molded core consisting of the same mixture wherein at least one other filler is substituted in place of the elemental copper;
- and
- forming a golf ball core from the composition.
Dependencies are inferred from the claim text.