Golf ball compositions and method of making same
First Claim
1. A golf ball comprising a core, at least one intermediate layer, and at least one cover layer, wherein the core comprises a base rubber, a crosslinking agent and a filler, and wherein the at least one intermediate layer is formed of a saponified polymer/oxa acid blend, comprising from about 65 to about 99 parts of at least one saponified polymer and from about 35 to 1 parts of at least one oxa acid, based on 100 parts by weight of the saponified polymer/oxa acid blend.
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Abstract
The present invention is directed to a golf ball and to a process for forming a golf ball having at least one layer, where the layer is formed of a saponified polymer/oxa acid blend, having from about 65 to about 99 parts of at least one saponified polymer and from about 35 to 1 parts of at least one oxa acid, based on 100 parts by weight of the saponified polymer/oxa acid blend. The layer may be foamed or unfoamed, and may form at least a portion of any of the cover, the core, or a mantle layer situated between the cover and the core.
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Citations
38 Claims
- 1. A golf ball comprising a core, at least one intermediate layer, and at least one cover layer, wherein the core comprises a base rubber, a crosslinking agent and a filler, and wherein the at least one intermediate layer is formed of a saponified polymer/oxa acid blend, comprising from about 65 to about 99 parts of at least one saponified polymer and from about 35 to 1 parts of at least one oxa acid, based on 100 parts by weight of the saponified polymer/oxa acid blend.
- 29. A golf ball comprising a cover and a core and a mantle situated between the cover and the core, wherein at least the core comprises at least one layer formed of a saponified polymer/oxa acid blend comprising from about 65 to about 99 parts of at least one saponified polymer and from about 35 to 1 parts of at least one oxa acid, based on 100 parts of the saponified polymer/oxa acid blend.
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35. A process for forming a golf ball having a cover, a core, and an intermediate layer situated between the cover and the core comprising the steps of:
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blending a saponified polymer with at least one oxa acid to form a saponified polymer/oxa acid blend; and
forming at least one layer of the intermediate layer from the saponified polymer/oxa acid blend. - View Dependent Claims (36, 37, 38)
forming a polymer comprising a first olefinic monomeric component having from 2 to 8 carbon atoms and a second monomeric component comprising an unsaturated carboxylic acid based acrylate class ester having from 4 to 22 carbon atoms;
applying a sufficient amount of heat to the polymer to convert the polymer to a substantially molten state;
forming a mixture by adding an inorganic metal base to the molten polymer; and
saponifying the mixture to form a saponified polymer, wherein a sufficient amount of the inorganic metal base is added to the molten polymer in forming the mixture to obtain a degree of saponification of the polymer ranging between about 1 and 50 percent.
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37. The process according to claim 36, further comprising forming the mixture of the inorganic metal base and the molten polymer at a temperature such that the mixture has a viscosity that remains substantially unchanged from that of the molten polymer.
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38. The process according to claim 36, further comprising forming the polymer with a third monomeric component, selected from the group consisting of carbon monoxide, sulfur dioxide, an anhydride monomer, an unsaturated monocarboxylic acid, an olefin having from 2 to 8 carbon atoms, and a vinyl ester or a vinyl ether of an alkyl acid having from 4 to 21 carbon atoms.
Specification