Perimeter weighted golf ball
First Claim
1. A golf ball comprising a core, a thin layer having a thickness of about 0.025 mm to about 0.76 mm encasing the core, and a cover encasing the thin layer, wherein the thin layer comprises a diene polymer cross-linked with at least about 50 phr of a reactive co-agent and the thin layer has a specific gravity of greater than 1.8;
- wherein an elastomeric composition is disposed in the core wherein the composition comprises one or more materials selected from a group consisting thermoset polymers, thermoplastic polymers, highly neutralized polymers, metallocene or single-site catalyst catalyzed polymers, polybutadienes, ethylene-propylene-diene polymers, poly(styrene-butadiene-styrene), SEBS, SEPS block polymers, styrene-ethylene block copolymers, diene polymers, and any polar group grafted or copolymerized polymers;
wherein the elastomeric composition further comprises greater than about 50 phr of a second different reactive co-agent.
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Accused Products
Abstract
A perimeter weighted golf ball with a low compression core is provided. The core preferably comprises a diene polymer that has low cross-link density or not cross-linked with a reactive co-agent. This core has low compression and low specific gravity. The low specific gravity core is encased within a thin dense layer positioned outside of the centroid radius to provide the ball with a high moment of inertia. The same core can be encased within a plurality of intermediate layers having either increasing hardness or decreasing hardness to provide selective golf balls for either low swing speed players or advanced players. Alternatively, a thin layer of diene polymer highly cross-linked with reactive a co-agent may be incorporated into the ball to increase the hardness of the ball.
52 Citations
11 Claims
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1. A golf ball comprising a core, a thin layer having a thickness of about 0.025 mm to about 0.76 mm encasing the core, and a cover encasing the thin layer, wherein the thin layer comprises a diene polymer cross-linked with at least about 50 phr of a reactive co-agent and the thin layer has a specific gravity of greater than 1.8;
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wherein an elastomeric composition is disposed in the core wherein the composition comprises one or more materials selected from a group consisting thermoset polymers, thermoplastic polymers, highly neutralized polymers, metallocene or single-site catalyst catalyzed polymers, polybutadienes, ethylene-propylene-diene polymers, poly(styrene-butadiene-styrene), SEBS, SEPS block polymers, styrene-ethylene block copolymers, diene polymers, and any polar group grafted or copolymerized polymers; wherein the elastomeric composition further comprises greater than about 50 phr of a second different reactive co-agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification