Golf ball

Abstract

The present invention provides a golf ball having excellent flight performance. The present invention relates to a golf ball comprising a core and a cover covering the core, wherein the cover has many fine open voids formed by foaming on the surface thereof.

What is claimed is:  
     
         1 . A golf ball comprising a core and a cover covering the core, wherein the cover has many fine open cells formed by foaming on the surface thereof.  
     
     
         2 . The golf ball according to  claim 1 , wherein the open cell has a depth of 0.05 to 0.5 mm, an opening area of 0.005 to 5.0 mm 2  and a number of 200 to 10,000 per 1 cm 2 .  
     
     
         3 . A method of making a golf ball comprising a core and a cover covering the core comprising the steps of 
 (a) forming the core,    (b) providing a foamable cover composition, and    (c) covering the cover formed from the cover composition on the core to form the golf ball, wherein the cover has many fine open cells formed by foaming on the surface thereof.    
     
     
         4 . The method according to  claim 3  further comprising the step of 
 (d) removing the surface of the cover to form many fine open cells on the surface of the golf ball, after the step (c).