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US 6,306,968 B1Granted
Multi-layer golf ball containing nylon and method of making same
AssigneeSpalding Sports Worldwide, Inc.
InventorsMichelle A. Bellinger, Michael J. Sullivan
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a golf ball with a cover formed from a polyamide composition and a method of making the same. More specifically, the golf ball has a cover which contains a combination of a polyamide component and an ionomeric component or a non-ionomeric terpolymer component. The cover composition has excellent durability and resistance to cracking, even at cold temperatures. The nylon-ionomer blend is a useful substitute for an ionomer golf ball cover, particularly when a low spin golf ball is desired.
Claims41
A golf ball comprising:
- a core having a diameter of about 1.545 inches;
- and
- a multi-layer cover layer disposed about said core, said multi-layer cover including an inner cover layer including a polyamide, wherein said inner cover layer exhibits a Shore D hardness of greater than 65.
A golf ball comprising:
- a core having a diameter of about 1.545 inches;
- an inner cover layer disposed about said core, said inner cover including a first resin composition comprising a polyamide;
- and
- an outer cover layer disposed on said inner cover layer and including a second resin composition which comprises a combination of a polyamide component and an ionomeric component.
1 more element
A golf ball, comprising:
- a core;
- an inner cover layer disposed about said core, said inner cover layer including a first resin composition comprising a polyamide;
- and
- an outer cover layer disposed on said inner cover layer and including a second resin composition which comprises a combination of a polyamide component, an ionomeric component, and an ester component.
1 more element
A golf ball, comprising:
- a core;
- an inner cover layer disposed about said core, said inner cover layer including a first resin composition comprising a polyamide, an ionomeric component, and an ester component;
- and
- an outer cover layer disposed on said inner cover layer and including a second resin composition which comprises a combination of a polyamide component and an ionomeric component, wherein said polyamide comprises a polyamide component.
1 more element
A golf ball comprising:
- a core having a diameter of about 1.545 inches;
- an inner cover layer disposed on said core, said inner cover including a first resin composition that comprises a polyamide component and an ionomeric component;
- and
- an outer cover layer disposed on said inner cover layer, said outer cover layer including a second resin composition that comprises a combination of a polyamide,
- wherein said polyamide in said second resin composition comprises a polyamide component, and said second resin composition further includes an ionomeric component,
- wherein at least a portion of said polyamide component and said ionomeric component of said second resin composition are part of the same copolymer.
3 more elements
A golf ball, comprising:
- a core;
- an inner cover layer disposed on said core, said inner cover layer including a first resin composition that comprises a polyamide component, an ionomeric component, and an ester component;
- and
- an outer cover layer disposed on said inner cover layer, said outer cover layer including a second resin composition that comprises a combination of a polyamide.
1 more element
A golf ball, comprising:
- a core;
- an inner cover layer disposed on said core, said inner cover layer including a first resin composition that comprises a polyamide component and an ionomeric component;
- and
- an outer cover layer disposed on said inner cover layer, said outer cover layer including a second resin composition that comprises a combination of a polyamide and an ester component, said polyamide in said second resin composition comprising a polyamide component.
1 more element
A method of forming a golf ball, said method comprising:
- providing a core having a diameter of about 1.545 inches;
- forming a multi-layer cover about said core, said multi-layer cover including an inner cover layer having a polyamide and formed such that said inner cover layer exhibits a Shore D hardness of greater than 65.
A method of making a golf ball, said method comprising the steps of:
- obtaining a golf ball core having a diameter of about 1.545 inches;
- forming an inner cover layer over said core, said inner cover layer being formed from a first resin composition comprising a polyamide, and forming an outer cover layer over said inner cover layer, said outer cover layer being formed from a second resin composition which comprises a combination of a polyamide component and an ionomeric component.
A method of forming a golf ball, said method comprising the steps of:
- obtaining a golf ball core having a diameter of about 1.545 inches;
- forming an inner cover layer over said core, said inner cover layer being formed from a first resin composition comprising a polyamide and an ionomeric component, and
- forming an outer cover layer over said inner cover layer, said outer cover layer being formed from a second resin composition which comprises a combination of a polyamide component and an ionomeric component.
Dependencies are inferred from the claim text.