Golf balls with improved feel

Abstract

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; S <−0.032143 F +189.5; 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; S <−0.01 F +112; 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; S <−0.01 F +112; where F is the golf ball frequency in Hz, and wherein the polyurethane cover includes a thermoset polyurethane.

1 . A golf ball comprising a cover layer, a core, and one or more intermediate layers, and wherein the ball has;
 1) a solid core;   2) a cover comprising polyurethane, polyurea or a combination thereof; and   3) a Sound Pressure Level, S, of less than 81 dB.   
   
   
       2 . The golf ball of  claim 1  wherein S meets the following inequality;
     S<− 0.032143 F +189.5;   where F is the golf ball frequency in Hz.   
   
   
       3 . The golf ball of  claim 1  wherein S meets the following inequality;
     S <−0.01 F +112;   where F is the golf ball frequency in Hz.   
   
   
       4 . The golf ball of  claim 3  wherein the cover comprises a thermoset polyurethane. 
   
   
       5 . The golf ball of  claim 1  wherein the cover comprises a polyurethane made from a polypropylene glycol-terminated toluene diisocyanate prepolymer. 
   
   
       6 . The golf ball of  claim 1  wherein the cover comprises a polyurethane made from the reaction product of a polypropylene glycol-terminated toluene diisocyanate prepolymer with a diamine. 
   
   
       7 . The golf ball of  claim 1 , wherein the golf ball has a S of less than 80.5 dB. 
   
   
       8 . The golf ball of  claim 1 , wherein the cover does not include an ionomer. 
   
   
       9 . The golf ball of  claim 1 , wherein the cover consists essentially of a polyurethane. 
   
   
       10 . The golf ball of  claim 1 , wherein the core includes at least one nanocomposite or nanofiller, the intermediate layer includes a polyalkenamer, and the cover layer includes a polyurethane. 
   
   
       11 . A golf ball comprising a cover layer, a core, and one or more intermediate layers, and wherein the ball has;
 1) a solid core;   2) a polyurethane cover or polyurea cover; and
 3) a Sound Pressure Level, S, of less than 81.5 dB, wherein S meets the following inequality;
     S< −0.032143 F +189.5; 
 
   where F is the golf ball frequency in Hz.   
   
   
       12 . The golf ball of  claim 11 , wherein the polyurethane cover comprises a thermoset polyurethane. 
   
   
       13 . The golf ball of  claim 11 , wherein the golf ball includes a polyurethane cover. 
   
   
       14 . The golf ball of  claim 12 , wherein the cover comprises a polyurethane made from a polypropylene glycol-terminated toluene diisocyanate prepolymer. 
   
   
       15 . The golf ball of  claim 11 , wherein the core includes at least one nanocomposite or nanofiller, the intermediate layer includes a polyalkenamer, and the cover is a polyurethane cover layer. 
   
   
       16 . A golf ball comprising a cover layer, a core, and one or more intermediate layers, and wherein the ball has;
 1) a solid core;   2) a polyurethane cover or polyurea cover; and   3) a Sound Pressure Level, S, of less than 81.5 dB, wherein S meets the following inequality;
     S< −0.01 F +112; 
   where F is the golf ball frequency in Hz.   
   
   
       17 . The golf ball of  claim 16 , wherein the polyurethane cover comprises a thermoset polyurethane. 
   
   
       18 . The golf ball of  claim 16 , wherein the golf ball includes a polyurethane cover. 
   
   
       19 . The golf ball of  claim 16 , wherein the core includes at least one nanocomposite or nanofiller, the intermediate layer includes a polyalkenamer, and the cover is a polyurethane cover layer. 
   
   
       20 . A golf ball comprising a cover layer, a core, and one or more intermediate layers, and wherein the ball has;
 1) a solid core; and   2) a thermoset polyurethane cover;   wherein the golf ball has a golf ball frequency of ≦3360 Hz.   
   
   
       21 . The golf ball of  claim 20 , wherein the golf ball has a golf ball frequency of <3360 Hz. 
   
   
       22 . The golf ball of  claim 20 , wherein the cover comprises a polyurethane made from a polypropylene glycol-terminated toluene diisocyanate prepolymer. 
   
   
       23 . The golf ball of  claim 20 , wherein the core includes at least one nanocomposite or nanofiller, and the intermediate layer includes a polyalkenamer. 
   
   
       24 . A golf ball comprising a cover layer, a core, and one or more intermediate layers, and wherein the ball has
 1) a solid core; and   2) a polyurethane cover or polyurea cover;   
     wherein the golf ball has a golf ball frequency of <3360 Hz.