Patent ID: 6849006
Filing Date: 2005-02-01
Classification: A63B,B29C,B29D,B29L,C08G,C08L,C09D

Abstract:
1. A golf ball comprising a core and a cover disposed about the core, wherein the core comprises a center and an outer core layer, and the cover comprises an inner cover layer and an outer cover layer; and wherein the center has an outer diameter from about 0.375 inches to about 1.4 inches, a deflection of greater than about 4.5 mm under a load of 100 Kg, and comprises polybutadiene having a polydispersity of about 2 or less; the outer core layer has an outer diameter of from about 1.4 inches to about 1.62 inches; the inner cover layer is harder than both the outer core layer and the center, having an outer diameter of greater than about 1.58 inches and a material hardness of between about 60 and about 72 Shore D; and the outer cover layer has a hardness of greater than about 50 Shore D and a material hardness of less than about 50 Shore D and comprises a thermosetting polyurethane composition comprising a polyisocyanate having less than about 7.0% unreacted NCO groups.