Golf ball with cover having at least three layers
AssigneeSpalding Sports Worldwide, Inc.
InventorMichael J. Sullivan
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a golf ball with a multi-layer cover. The golf ball has a core, and a multi-layer cover having at least three layers. The multi-layer cover includes an inner cover layer, an intermediate cover layer, and an outer cover layer, each cover layer having a different hardness than each adjacent cover. In a preferred structure the intermediate cover layer has a Shore D hardness softer than at least one of the other two layers. The sum of the thickness of the inner cover layer, intermediate cover layer and outer cover layer is 0.05-0.50 inch. A method for making the golf ball also is disclosed.
Claims21
A golf ball, comprising:
- a solid or wound core,
- and a multi-layer cover having at least three separate and distinct layers, said multi-layer cover comprising
- an inner cover formed around the core,
- and intermediate cover layer formed around the inner cover layer, and
- an outer cover layer formed around the intermediate cover layer, each cover layer having a different Shore D hardness than each adjacent cover layer, the intermediate layer having a Shore D hardness softer than at least one of the inner cover layer and outer cover layer.
A golf ball according to claim 19, wherein the non-ionomeric polyolefin material comprises a metallocene-catalyzed polyolefin.
A golf ball, comprising:
- a solid or wound core,
- and a multi-layer cover having at least three separate and distinct layers, said multi-layer cover comprising
- an inner cover layer formed around the core, the inner cover layer having a Shore D hardness of at least 62,
- an intermediate cover layer formed around the inner cover layer, and
- an outer cover layer formed around the intermediate cover layer, each cover layer having a different Shore D hardness than each adjacent cover layer, the intermediate layer having a Shore D harness softer than at least one of the inner cover layer and the outer cover layer.
A golf ball, comprising:
- a solid core,
- and a multi-layer cover having at least three separate and distinct layers, said multi-layer cover comprising
- an inner cover layer comprising at least one member selected from the group consisting of ionomers, thermoplastic elastomers and non-ionomeric poyolefins,
- an intermediate cover layer comprising at least one member selected from the group consisting of ionomers, thermoplastic elastomers and non-ionomeric polyolefins, and
- an outer cover layer comprising at least one member selected from the group consisting of ionomers, thermoplastic elastomers and non-ionomeric polyolefins,
- wherein each of the inner cover layer, intermediate cover layer and outer cover layer is a separate layer and the intermediate layer has a Shore D hardness softer than at least one of the inner cover layer and outer cover layer.
Dependencies are inferred from the claim text.