Patent ID: 6676866
Filing Date: 2004-01-13
Classification: A63B

Abstract:
A method of adjusting at least one material property or weight distribution of a golf ball comprising:at least partially melting a polymeric material; saturating the melted polymeric material with a gas at a first pressure sufficient to substantially uniformly distribute the gas through the melted polymeric material; shaping the gas-saturated polymeric material at an elevated pressure to prevent substantial cell nucleation within the material; sufficiently reducing the first pressure, in the absence of sonic vibration, and supersaturating the shaped polymer material with a gas so that the polymer material is modified to form a substantially uniformly nucleated shaped microcellular polymeric material having closed-cell, microcellular voids having a diameter of no greater than about 100 microns; solidifying the microcellular polymer material sufficiently to inhibit formation of additional voids; and incorporating the microcellular polymeric material into a golf ball.