Patent ID: 7208562
Filing Date: 2007-04-24
Classification: A63B,C08G

Abstract:
1. A golf ball comprising: a layer comprising a polyurethane/polyurea material, the polyurethane/polyurea material formed from reaction injection molding a polyol component and an isocyanate component, the polyol component comprising polytetramethylene ether glycol and a 3,5-diethyl-2,4 toluenediamine, the isocyanate component comprising a quasi-polyurethane prepolymer comprising methylene-4,4′-diphenyldiisocyanate and a glycol, wherein the polyol component comprises 55 to 70 weight percent of the polyurethane/polyurea material and the isocyanate component comprises 30 to 45 weight percent of the polyurethane/polyurea material and having a free isocyanate content of greater than 15 weight percent of the isocyanate component; wherein the layer is selected from the group consisting of core, boundary layer and cover layer.