Acushnet Company

Edmund A Herbert

Derek A Ladd

Michael J Sullivan

Jeffrey L Dalton

Douglas E Jones

Donald A Serino

Golf ball having at least three layers comprising ionomeric and/or HNP compositions, wherein for each two adjacent layers, a relationship is established between a ratio of the volumes of the two adjacent layers and a ratio of the percent neutralizations of those two layers such that the volumes and % neutralizations of all layers are interrelated and interdependent to produce unique and desirable playing characteristics. In one embodiment, a golf ball of the invention has T layers, wherein T&#x2265;3 and each of T layers has a different volume 'V' and comprises an ionomeric and/or HNP composition having a different % neutralization 'N'; and wherein each of n inner layers of the T layers (n&#x3c;T) has an adjacent surrounding layer n+1 such that a volume Vand a % neutralization Nof each inner layer and a volume Vand % neutralization Nof each adjacent surrounding layer n+1 satisfy the relationship (V&#x2212;V)/V&#x2264;(N&#x2212;N)/N.

Golf ball incorporating at least three adjacent ionomeric and/or HNP-based layers having multiple related property gradients there between

A golf ball with a controlled moment of inertia and controlled spin rate is disclosed. In one embodiment, the golf ball comprises a core, an intermediate layer and a cover, wherein the intermediate layer comprises a foamed highly neutralized polymer, has its specific gravity reduced to less than about 1.05, wherein the reduction in the specific gravity of the intermediate layer is less than about 25% to minimize the reduction in the coefficient of restitution of the golf ball to about 6% or less.

Foam-core golf balls

Golf ball having a surface texture defined by fractal geometry and golf ball having indents whose orientation is defined by fractal geometry. The surface textures are defined by two-dimensional fractal shapes, partial two-dimensional fractal shapes, non-contiguous fractal shapes, three-dimensional fractal objects, and partial three-dimensional fractal objects. The indents have varying depths and are bordered by other indents or smooth portions of the golf ball surface.

Growing community of inventors

Mattapoisett, MA, United States of America

Edmund A Herbert