Patent ID: 7160210

Claim:
A golf ball comprising: a core comprising a polybutadiene mixture, the core having a diameter ranging from 1.35 inches to 1.64 inches and having a PGA compression ranging from 40 to 100; a boundary layer formed over the core, the boundary layer composed of a blend of ionomer materials, the boundary layer having a thickness ranging from 0.020 inch to 0.075 inch, the blend of ionomer materials having a Shore D hardness ranging from 50 to 75 as measured according to ASTM-D2240; a cover formed over the boundary layer, the cover composed of a fast chemical reaction aliphatic polyurethane material formed from reactants comprising a polytetramethylene ether glycol terminated 4,4′-diphenylmethane diisocyanate polyurethane prepolymer and a polyol, wherein the aliphatic polyurethane material has a Shore D hardness ranging from 30 to 60 as measured according to ASTM-D2240, a thickness ranging from 0.015 inch to 0.044 inch, an aerodynamic surface geometry thereon, and wherein the cover material is transparent to visible light; and an indicia disposed on a surface of the boundary layer and visible through the cover material.