Patent ID: 7276570

Claim:
A golf ball comprising a core and a layer about the core, wherein the layer comprises a material formed from a composition comprising at least one polymer having a plurality of amide linkages and a plurality of anionic moieties attached thereto, wherein the anionic moieties are selected from the group consisting of —COO ⊖ , SO 2 O ⊖ , and ═POO ⊖ , wherein the polymer is a reaction product of at least one isocyanate-containing prepolymer and at least one isocyanate-reactive curative, and wherein the prepolymer has at least one of the following structures: where A and B arc independently chosen from linear, branched, and cyclic moieties having 2-60 carbon atoms; Z is chosen from anionic moieties and precursor moieties thereof; and n is a number of 1 or greater.