Golf ball which includes fast-chemical-reaction-produced component and method of making same

Abstract

Disclosed herein is a golf ball comprising fast-chemical-reaction-produced component, such as a component which comprises a reaction injection molded polyurethane material. A process of making a golf ball by forming at least one core and/or cover component of the ball by mixing two or more reactants that react and form a reaction product with a flex modulus of 5-310 kpsi in a reaction time of about 5 minutes or less, the component having a thickness of at least 0.01 inches and a demold time of 10 minutes or less is disclosed. In one preferred form of the invention, excess polyurethane from forming golf ball covers is recycled by using it to form golf ball cores.

1 . A golf ball comprising: 
 a core comprising a composition comprising a polybutadiene material;    a mantle layer comprising a reaction injection molded polyurethane; and    a cover disposed over the mantle layer, the cover comprising a composition comprising an ionomer material.    
   
   
       2 . The golf ball according to  claim 1  wherein the mantle layer has a thickness of approximately 0.04 inch.  
   
   
       3 . The golfball according to claim  1 wherein the core has a diameter of approximately 1.49 inches.  
   
   
       4 . The golf ball according to  claim 1  wherein the cover has a thickness of approximately 0.055 inch.  
   
   
       5 . The golf ball according to  claim 1  wherein the mantle layer is thinner than the cover.  
   
   
       6 . A golf ball comprising: 
 a core comprising a composition comprising a polybutadiene material;    a mantle layer comprising a composition formed from reaction injection molding a polyol component and a diisocyanate component; and    a cover disposed over the mantle layer, the cover comprising a composition comprising an ionomer material.    
   
   
       7 . A golf ball comprising: 
 a core comprising a composition comprising a polybutadiene material, the core having a diameter of approximately 1.49 inches;    a mantle layer comprising a composition formed from reaction injection molding a polyol component and a diisocyanate component; and    a cover disposed over the mantle layer, the cover comprising a composition comprising an ionomer material, the cover having a Shore D hardness of approximately 57.