Patent ID: 7378483

Claim:
A golf ball comprising a core, an inner cover layer, and an outer cover layer, the outer cover layer being formed from a polyurea comprising: a prepolymer comprising: an aliphatic isocyanate mixture comprising dimerized uretdione of HDI and trimerized isocyanurate of HDI; a first amount of modified polyoxypropylene diamine having a formula: where x=1-70; R 1 and R 2 each independently=a C 1-20 alkyl group, phenyl, or a mixture thereof; and R 3 =CH 3 ; and a caprolactone; and a curative comprising a mixture of 3,5-diethyl-2,4-toluenediamine and 3,5-diethyl-2,6-toluenediamine.