Golf club head with high specific-gravity materials

Abstract

Golf club heads comprising weighted materials that can be added, removed, and moved in order to change the weight and center of gravity of the club. In some instances, the weighted material is a polymer composition comprising metal and having a specific gravity greater than about 4. Also disclosed are methods of modifying the center of gravity of a golf club head and methods of manufacturing golf club heads.

1 . A golf club head comprising:
 a body comprising a face, a back, a heel, a toe, a sole, and a crown that together form a hollow, interior volume of the club head, the body including a removable portion providing access to the interior volume of the club head; and   a polymer composition comprising a metal and having a specific gravity greater than about 4.   
     
     
         2 . The golf club head of  claim 1 , wherein the polymer composition comprises a polymer selected from the group consisting of epoxides, urethanes, dimethylsiloxanes, polysiloxanes, chloroprenes, acrylics, and acetates. 
     
     
         3 . The golf club head of  claim 1 , wherein the metal is selected from tungsten, nickel, copper, iron, gold, platinum, lead, silver, molybdenum, silver, and uranium. 
     
     
         4 . The golf club head of  claim 1 , wherein the golf club head additionally comprises a port providing access to the interior of the club head. 
     
     
         5 . The golf club head of  claim 1 , wherein the polymer composition contacts a portion of the interior volume of the club head. 
     
     
         6 . The golf club of  claim 5 , wherein the interior of the club head comprises a depression for receiving the polymer composition. 
     
     
         7 . The golf club head of  claim 1 , wherein the polymer composition contacts the exterior of the club head. 
     
     
         8 . The golf club head of  claim 1 , wherein the polymer composition contacts the sole of the club head. 
     
     
         9 . The golf club head of  claim 1 , wherein the polymer composition is a coating. 
     
     
         10 . The golf club head of  claim 1 , wherein the polymer composition is a putty. 
     
     
         11 . The golf club head of  claim 1 , wherein the polymer composition is a solid. 
     
     
         12 . The golf club head of  claim 1 , wherein the polymer composition is removable. 
     
     
         13 . A golf club head comprising:
 a body comprising a face, a back, a heel, a toe, a sole, and a crown that together form a hollow, interior volume of the club head, the body including a port providing access to the interior volume of the club head; and   a polymer composition comprising a metal and having a specific gravity greater than about 4.   
     
     
         14 . The golf club head of  claim 13 , wherein the metal is selected from tungsten, nickel, copper, iron, gold, platinum, lead, silver, molybdenum, silver, and uranium. 
     
     
         15 .- 22 . (canceled) 
     
     
         23 . A golf club head comprising:
 a body comprising a face, a back, a heel, a toe, a sole, and a crown that together form a hollow, interior volume of the club head, the body including a movable portion providing access to the interior volume of the club head; and   a polymer composition comprising a metal and having a specific gravity greater than about 4.   
     
     
         24 . The golf club head of  claim 23 , wherein the polymer composition comprises a polymer selected from the group consisting of epoxides, urethanes, dimethylsiloxanes, polysiloxanes, chloroprenes, acrylics, and acetates and the metal is selected from tungsten, nickel, copper, iron, gold, platinum, lead, silver, molybdenum, silver, and uranium. 
     
     
         25 . The golf club head of  claim 23 , wherein the polymer composition contacts a portion of an interior surface of the interior volume of the club head. 
     
     
         26 . The golf club head of  claim 25 , wherein the polymer composition contacts an interior surface of the sole of the club head. 
     
     
         27 . The golf club head of  claim 23 , wherein the polymer composition is adjustable. 
     
     
         28 . The golf club head of  claim 23 , wherein the polymer composition is removable from the interior volume of the club head.