Patent ID: 7699720
Filing Date: 2010-04-20
Classification: A63B

Abstract:
1. A golf ball comprising: a core having a compression of 50 or less and a coefficient of restitution of 0.800 or greater; an outer cover comprising a crosslinked diene rubber composition, the cover having a hardness of 64 Shore D or less and a thickness of 0.02 inches to 0.1 inches; and an intermediate layer disposed between the core and the cover, the intermediate layer having a thickness of 0.11 inches or greater and comprising a partially- or fully-neutralized ionomer; wherein the crosslinked diene rubber composition comprises a polybutadiene rubber having a cis-structure of at least 95%, a molecular weight of greater than about 400,000, a Mooney viscosity of greater than 50, and a polydispersity of no greater than about 2, and a combination of the core and the intermediate layer has a compression of about 60 or greater and the golf ball has a coefficient of restitution of 0.805 or greater when measured at an incoming velocity of 125 ft/s and greater than 0.75 when measured at an incoming velocity of 160 ft/s.