Patent ID: 8987405
Filing Date: 2015-03-24
Classification: A63B,C08F,C08G,C08L,C09D

Abstract:
1. A golf ball comprising: a golf ball precursor comprising: an outer cover layer substantially surrounding the golf ball precursor and having a second 100% modulus of less than about 150 kg/cm the golf ball having a coefficient of restitution of less than 0.81; wherein the outer cover layer comprises a cross-linked thermoplastic polyurethane elastomer including cross-links formed from allyl ether side groups, and the cross-linked thermoplastic polyurethane elastomer being the reaction product formed from reacting an organic isocyanate with a mixture of the following reactants: (a) an unsaturated diol of the formula in which R is alkyl group, and x and y are integers of 1 to 4; (b) a chain extender, having at least two reaction sites with isocyanates and having a molecular weight of less than about 450; (c) a long chain polyol having a molecular weight of between about 500 and about 4,000; and (d) free radical initiator.