A golf ball comprising a core and at least one layer formed about the core
is disclosed. The layer may be composed of a material formed from
reactants comprising at least one polyisocyanate and at least one
polyaspartic ester, such as
N,N'-di(ethylmaleate-amino)-dicyclohexylmethane,
N,N'-di(ethylmaleate-amino)-dimethyl-dicyclohexylmethane,
N,N'-diethylmaleate-2-methyl-pentamethylene diamine, or a blend thereof.
The layer may be an intermediate layer, an outer cover layer, or a
coating layer.