Foamed inner tube

Abstract

A ball inner tube used as a ball bladder or sold individually as a ball with better resilience, improved airtight performance and longer service is comprised of an inner tube designated material given the primary heating process, bound with a mixture of a foaming agent and the same material designated for the inner tube, and put under the secondary heating process at a temperature of 165° C. for the foaming agent to be integrated with the inner tube.

1 . A ball inner tube essentially comprised of an inner tube designated material given the primary heating process, bound with a mixture of a foaming agent and the same material designated for the inner tube, and put under the secondary heating process for the foaming agent to be integrated with the inner tube.  
   
   
       2 . The ball inner tube of  claim 1 , wherein the designated material for the inner tube relates to rubber, TPU or PVC.  
   
   
       3 . The ball inner tube of  claim 1 , wherein the temperature of the secondary heating process for binding the foaming agent the inner tube is 165° C.  
   
   
       4 . The ball inner tube of  claim 1 , wherein the foaming agent is prepared in any color desired for the inner tube to be directly sold as a finished product of a ball.