Multi-layer golf ball
First Claim
Patent Images
1. A golf ball, comprising:
- a molded core comprising a high cis-polybutadiene having a Mooney viscosity of from about 20 to about 70 and an Instron compression of greater than 0.0880;
an inner mantle comprising an ionomer neutralized to 80% or more and having a Shore D hardness of from about 30 to about 85, the inner mantle molded on the molded core;
an outer mantle comprising an ionomer having a Shore D hardness of from about 30 to about 85, the outer mantle molded on the inner mantle, the outer mantle having a thickness ranging from 0.025 inch to 0.065 inch;
and a thermoset polyurethane/polyurea cover formed over the outer mantle, the thermoset polyurethane/polyurea cover having a thickness ranging from 0.015 inch to 0.040 inch.
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Abstract
A golf ball comprises a molded core, one or more ionomer mantles, and a thermoset polyurethane cover. The core is a high cis-polybutadiene crosslinked with zinc diacrylate and may also comprise a halogenated thiophenol and metal thiosulfate. One or more of the ionomer mantles comprises an ionomer neutralized to 80% or greater.
165 Citations
23 Claims
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1. A golf ball, comprising:
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a molded core comprising a high cis-polybutadiene having a Mooney viscosity of from about 20 to about 70 and an Instron compression of greater than 0.0880; an inner mantle comprising an ionomer neutralized to 80% or more and having a Shore D hardness of from about 30 to about 85, the inner mantle molded on the molded core; an outer mantle comprising an ionomer having a Shore D hardness of from about 30 to about 85, the outer mantle molded on the inner mantle, the outer mantle having a thickness ranging from 0.025 inch to 0.065 inch; and a thermoset polyurethane/polyurea cover formed over the outer mantle, the thermoset polyurethane/polyurea cover having a thickness ranging from 0.015 inch to 0.040 inch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A golf ball, comprising:
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a molded core comprising a high cis-polybutadiene having a Mooney viscosity of from about 20 to about 70 and an Instron compression of greater than 0.0880; an inner mantle comprising an ionomer having a Shore D hardness of from about 30 to about 85, the inner mantle molded on the molded core; an outer mantle comprising an ionomer neutralized to 80% or more and having a Shore D hardness of from about 30 to about 85, the outer mantle molded on the inner mantle, the outer mantle having a thickness ranging from 0.025 inch to 0.065 inch; and a therinoset polyurethane/polyurea cover fonned over the outer mantle, the thermoset polyurethane/polyurea cover having a thickness ranging from 0.015 inch to 0.040 inch. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A golf ball, comprising:
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a molded core comprising a high cis-polybutadiene, pentachlorothiophenol or a metallic salt thereof and an optional disodium hexamethylene thiosulfate dehydrate; an inner mantle including an ionomer resin comprising a copolymer of ethylene and ethylene acrylate neutralized to 80% or greater; an ionomer skin having a flex modulus of from about 0.5 to about 310 kpsi, the ionomer skin molded on the inner mantle, the ionomer skin having a thickness ranging from 0.025 inch to 0.065 inch; and a thermoset polyurethane/polyurea cover produced by reaction-injection molding formed over the ionomer skin, the thermoset polyurethane/polyurea cover having a thickness ranging from 0.015 inch to 0.040 inch.
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Specification