Patent ID: 6933336

Claim:
A golf ball having a polyurethane cover, wherein the polyurethane cover is formed by curing a polyurethane cover composition which comprises: an isocyanate group terminated polyurethane prepolymer comprising at least one diisocyanate selected from the group consisting of 4,4-dicyclohexylmethanediisocyanate, isophoronediisocyanate, and cyclohexanediisocyanate as a polyisocyanate, component; and a phenylenediamine derivative represented by the following formula (1): wherein R 1 to R 4 represent any one of an alkyl group having 1 to 3 carbons, or hydrogen atom, and each of R 1 to R 4 may be the same as or different from the other; and wherein the polyurethane cover further contain propylene carbonate.