Golf ball with an outer core having a high coefficient of restitution

Patent metadata

Field	Value
Publication number	US-8992340-B2
Application number	US-201213731537-A
Country	US
Kind code	B2
Filing date	Dec 31, 2012
Priority date	Jan 3, 2012
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of highly neutralized polymer, and may include a blend of different highly neutralized polymers. The cover is a two layer cover, with a hard inner cover and a thermoplastic polyurethane outer cover. The ball as a whole has properties to maximize performance and aesthetic properties, such as feel and sound.

First claim

What is claimed is:

1. A golf ball comprising:
an inner core layer;
the inner core layer having a first coefficient of restitution, wherein the first coefficient of restitution is approximately 0.8 when the initial velocity is 131 ft/s;
an outer core layer enclosing the inner core layer, wherein the outer core layer comprises polybutadiene rubber;
the outer core layer having a second coefficient of restitution;
the outer core layer having a thickness of at least 4.8 mm;…

Assignees

• Nike Inc

Inventors

• Ishii Hideyuki
• Ichikawa Yasushi
• Molinari Arthur
• Ichinose Jun
• Liu Chen-Tai

Classifications

• A63B37/0078 Primary

  Human Necessities · mapped topic

• A63B37/0046

  Human Necessities · mapped topic

• A63B37/0051

  Human Necessities · mapped topic

• A63B37/0041

  Human Necessities · mapped topic

• A63B37/0061

  Human Necessities · mapped topic