High CoR golf ball using zinc dimethacrylate
AssigneeAcushnet Company
InventorPeter R. Voorheis
Life of this patent
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Abstract
The present invention is directed to resilient golf balls and portions thereof including compositions containing zinc dimethacrylate and zinc pentachlorothiophenol, and methods for making same. In particular, the present invention is directed to a golf ball having at least one of a center, cover, or intermediate layer that includes a reaction product that includes a resilient polymer component, a free radical source, zinc dimethacrylate and at least one halogenated organosulfur compound having the following general formula I: where R1-R5 can be substituted or unsubstituted C1-C8 alkyl groups; halogen groups; thiol groups (—SH), carboxylated groups; sulfonated groups; and hydrogen; in any order.
Claims17
A golf ball comprising:
- a center;
- an outer core layer disposed about the center comprising:
- a resilient polymer component;
- a free radical source;
- zinc dimethacrylate;
- a co-crosslinking agent comprising an organic acid comprising more than one carboxylic acid group;
- an organosulfur compound or a metal salt of an organosulfur compound present in an amount of about 2 pph to about 5 pph having the following general formula I:
- wherein R1-R5 is selected from the group consisting of substituted or unsubstituted C1-C8 alkyl groups;
- halogen groups;
- thiol groups (—SH), carboxylated groups;
- sulfonated groups;
- and hydrogen;
- in any order;
- an inner cover layer disposed about the outer core layer;
- and
- an outer cover layer disposed about the inner cover layer.
A golf ball comprising a core, an intermediate layer, an inner cover layer, and an outer cover layer, wherein at least one layer formed from a composition that comprises a resilient polymer component, a free radical source, zinc dimethacrylate present in an amount of about 15 pph to about 25 pph, and zinc pentachlorothiophenol present in an amount of about 2 pph to about 5 pph;
- and a co-crosslinking agent present in an amount of about 25 pph to about 35 pph.
A golf ball comprising:
- a center;
- an outer core layer disposed about the center comprising:
- a resilient polymer component;
- a free radical source;
- zinc dimethacrylate present in an amount of about 15 pph to about 25 pph;
- a co-crosslinking agent present in an amount of about 25 pph to about 35 pph;
- an organosulfur compound or a metal salt of an organosulfur compound present in an amount of about 2 pph to about 5 pph having the following general formula I:
- wherein R1-R5 is selected from the group consisting of substituted or unsubstituted C1-C8 alkyl groups;
- halogen groups;
- thiol groups (—SH), carboxylated groups;
- sulfonated groups;
- and hydrogen;
- in any order;
- an inner cover layer disposed about the outer core layer;
- and
- an outer cover layer disposed about the inner cover layer.
Dependencies are inferred from the claim text.