Patent ID: 7060777

Claim:
A golf ball comprising: a core; and a cover formed over the core, the cover composed of a thermosetting polyurethane material formed from reactants comprising a single polyurethane prepolymer and a curative blend, the single polyurethane prepolymer consisting of a polytetramethylene ether glycol terminated 4,4′-dicyclohexyl methane diisocyanate polyurethane prepolymer having a nitrogen-carbon-oxygen group content ranging from 7.35% to 7.65% and a curative blend comprising 4,4′-methylenebis-(2,6-diethyl)-aniline and a second curing agent, wherein the thermosetting polyurethane material has a Shore D hardness ranging from 30 to 60; wherein the cover has an aerodynamic surface geometry thereon.