Wound-core golf ball

摘要

A wound-core golf ball having a polyurethane cover is disclosed. The polyurethane cover is formed by curing a composition including an isocyanate group terminated polyurethane prepolymer containing a residual polyisocyanate monomer in an amount of not more than 0.1 mass %; and an aromatic polyamine compound. Use of this isocyanate group terminated polyurethane prepolymer enables the homogeneous curing reaction even at the low temperature, thus the golf ball which has the polyurethane cover exhibiting excellent performance is obtained.