Patent ID: 7999054
Filing Date: 2011-08-16
Classification: A63B,C08G

Abstract:
1. A golf ball comprising a core and a cover covering the core, wherein the cover is formed from a cover composition containing a thermoplastic polyurethane containing a polybutadiene polyol having an unsaturated carbon-carbon bond as a constituent and a crosslinking agent, the content of the polybutadiene polyol having the unsaturated carbon-carbon bond is from 5% to 60% by mole based on a total amount of polyol components constituting the thermoplastic polyurethane, and the number of the unsaturated carbon-carbon bonds per unit mass in the thermoplastic polyurethane before crosslinking with the crosslinking agent is 0.3×10 −3 mol/g or more and less than 7.9×10 −3 mol/g.