Granted Patent B2

US 7,878,927 · App. 12/642,511 · Granted Feb 1, 2011

Assignee: Acushnet Company

Abstract

Claims (8)

1. A golf ball comprising:

a hollow core;

a foamed intermediate layer surrounding the core, the foamed intermediate layer being formed from a moisture resistant composition having a moisture vapor transmission rate (MVTR) of 12.5 g·mil/100 in 2 /day or less and comprising a highly neutralized acid polymer;

a cover; and

an unfoamed intermediate layer disposed between the foamed intermediate layer and the cover, the unfoamed intermediate layer having a specific gravity of 1.2 or greater;

wherein the ball has a moment of inertia of 85 g·cm 2 or greater.

2. The golf ball of claim 1 , wherein the unfoamed intermediate layer is unfilled.

3. The golf ball of claim 1 , wherein the unfoamed intermediate layer is formed from a composition comprising a high density filler.

Assignments (5)

Continuity (8)