| 摘要 |
A golf ball including a polyurethane cover layer, a solid core, and one or more intermediate layers, and wherein the ball has a Sound Pressure Level, S, of less than 81.5 dB. In a further embodiment there is a golf ball including a polyurethane cover layer, a solid core, and one or more intermediate layers, and wherein the ball has a Sound Pressure Level, S, of less than 81.5 dB and wherein S meets the following inequality; <?in-line-formulae description="In-line Formulae" end="lead"?>S<-0.032143F+189.5;<?in-line-formulae description="In-line Formulae" end="tail"?> where F is the golf ball frequency in Hz. In an additional embodiment disclosed is a golf ball including a polyurethane cover layer, a solid core, and one or more intermediate layers, and wherein the ball has a Sound Pressure Level, S, of less than 81.5 dB and wherein S meets the following inequality; <?in-line-formulae description="In-line Formulae" end="lead"?>S<-0.01F+112;<?in-line-formulae description="In-line Formulae" end="tail"?> where F is the golf ball frequency in Hz. In another embodiment disclosed is a golf ball including a polyurethane cover layer, a solid core, and one or more intermediate layers, and wherein the ball has a Sound Pressure Level, S, of less than 81.5 dB and wherein S meets the following inequality; <?in-line-formulae description="In-line Formulae" end="lead"?>S<-0.01F+112;<?in-line-formulae description="In-line Formulae" end="tail"?> where F is the golf ball frequency in Hz, and wherein the polyurethane cover includes a thermoset polyurethane. |
