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US 7,338,391 B2Granted
Golf ball which includes fast-chemical-reaction-produced component and method of making same
AssigneeCallaway Golf Company
InventorsDavid M. Melanson, Vincent J. Simonds, Thomas J. Kennedy, III, John L. Nealon, Michael J. Tzivanis, Viktor Keller
Life of this patent
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Abstract
Disclosed herein is a golf ball having a cover composed of a transparent reaction injection molded polyurethane material. The cover is transparent to visible light and allows for viewing of a core or boundary layer. The core or boundary layer may have a visually appealing color. Further, an indicia may be printed on a surface of the core or boundary layer, and the indicia is visible through the cover material.
Claims1
A golf ball comprising:
- a core comprising a polybutadiene mixture;
- a boundary layer formed over the core, the boundary layer having an indicia printed on a surface of the boundary layer;
- and
- a cover formed over the boundary layer, the cover having a thickness ranging from 0.015 inch to 0.044 inch, a Shore B hardness ranging from 20 to 95 and a flex modulus ranging from 5 kpsi to 100 kpsi, the cover composed of a fast chemical reaction aliphatic polyurethane material formed from reactants comprising 1,6, hexamethylene-diisocyanate and a polytetramethylene ether glycol;
- wherein the cover material is transparent to visible light and the indicia printed on the surface of the boundary layer is visible.
2 more elements
Dependencies are inferred from the claim text.