Golf ball having high surface friction

Abstract

A golf ball comprising a core and a cover, wherein an outermost surface of the golf ball has a coefficient of friction of greater than 0.6.

1 . A golf ball comprising a core and a cover, wherein an outermost surface of the golf ball has a high coefficient of friction of greater than 0.6, wherein the outermost surface is formed of a coating layer comprising a two-component system including a polymer having at least one isocyanate-reactive functionality and an isocyanate and wherein the coating layer has a Sward hardness of less than about 20.  
     
     
         2 . The golf ball of  claim 1 , wherein the coefficient of friction is about 0.8 to about 1.5.  
     
     
         3 . The golf ball of  claim 1 , wherein the outermost surface has a 60° gloss of at least about 3.  
     
     
         4 . The golf ball of  claim 1 , wherein the outermost surface has a 60° gloss of about 80 to about 95.  
     
     
         5 . The golf ball of  claim 1 , wherein the outermost surface is hydrophobic.  
     
     
         6 . The golf ball of  claim 1 , wherein the coating layer has a thickness of about 0.0001 inches to about 0.01 inches.  
     
     
         7 . The golf ball of  claim 6 , wherein the coating layer is translucent, transparent, or pigmented.  
     
     
         8 . (Cancelled).  
     
     
         9 . The golf ball of  claim 6 , wherein the coating layer has a Sward hardness of less than about 10.  
     
     
         10 . The golf ball of  claim 6 , wherein the coating layer has a Sward hardness of less than about 5.  
     
     
         11 . A golf ball comprising a core and a cover, wherein an outermost surface of the golf ball has a high coefficient of friction of greater than 0.6 wherein the outermost surface is formed of a coating layer having a thickness of about 0.0001 inches to about 0.01 inches and wherein the coating layer is formed from a two-component thermoset polyurethane.  
     
     
         12 . The golf ball of  claim 11 , wherein the polyurethane is substantially saturated.  
     
     
         13 . The golf ball of  claim 11 , wherein the polyurethane comprises a UV absorber, a hindered amine light stabilizer, an antioxidant, an optical brightener, a coupling agent, or a combination thereof.  
     
     
         14 . The golf ball of  claim 6 , wherein the coating layer has a solid content by weight of at least about 40%.  
     
     
         15 . The golf ball of  claim 6 , wherein the coating layer has a cross hatch adhesion of about 90% to about 100%.  
     
     
         16 . (Cancelled).  
     
     
         17 . The golf ball of  claim 1 , wherein the cover comprises at least one of a metallocene-catalyzed polymer, an ethylene/acid ionomer, a thermoplastic or thermoset polyurethane, or a thermoplastic or thermoset polyurea.  
     
     
         18 . A golf ball comprising a core and a cover, wherein an outermost surface of the golf ball has a high coefficient of friction of greater than 0.6 and wherein the golf ball does not have a coating layer such that the outermost surface of the golf ball is an outer surface of the cover.  
     
     
         19 . A golf ball comprising a core, a cover, and a first coating layer with a high coefficient of friction of at least about 0.7 disposed about the cover, wherein the golf ball exhibits, in comparison to a second golf ball comprising a second coating layer with a second coefficient of friction of 0.6, a spin rate change of less than about 15% when struck with a standard driver at a speed of about 160 ft/sec.  
     
     
         20 . The golf ball of  claim 19 , wherein the coefficient of friction of the coating layer is about 0.8 to about 1.5.  
     
     
         21 . The golf ball of  claim 19 , wherein the coating layer has a 60° gloss of at least about 50.  
     
     
         22 . The golf ball of  claim 19 , wherein the coating layer has a 60° gloss of about 80 to about 95.  
     
     
         23 . The golf ball of  claim 19 , wherein the golf ball, when struck with a full wedge at a speed of about 95 ft/sec, has an elevated launch angle and a spin rate reduction of at least about 5% in comparison to the second golf ball.  
     
     
         24 . The golf ball of  claim 19 , wherein the golf ball has an elevated launch angle and a spin rate reduction of at least about 10% when struck with a half wedge at a speed of about 53 ft/sec, in comparison to the second golf ball.  
     
     
         25 - 27 . (Cancelled).