Patent ID: 8920264

Claim:
A golf ball comprising: a core, at least one intermediate layer, and a cover; wherein the cover comprises a thermoplastic resin; wherein the cover further comprises aan outer portion and an inner portion, the outer portion comprises an interpenetrating polymer network of the thermoplastic resin and a reaction product of an isocyanate compound comprising about 2% to about 5% of an isocyanate solution and a co-reactant compound having a non-active hydrogen group, wherein the isocyanate solution contacts the outer portion for a contacting time from about 1 to about 5 minutes, and wherein the isocyanate compound in the isocyanate solution reacts with the non-active hydrogen group of the co-reactant compound in the presence of a catalyst which catalyzes a reaction between the isocyanate compound and the nonactive hydrogen group of the co-reactant compound to form the reaction product, and wherein the reaction product comprises, an aromatic polyisocyanurate.