Description  Claims  Drawing  Cited references 

US2356128A   [0003] 
US4591617A   [0012] 
US4128510A   [0012]  [0013] 
US4288576A   [0012]  [0013] 
US4357446A   [0014] 
WO2012075573A   [0020] 
CA2578583   [0040] 
CA2418884   [0040] 

Ullmanns Encyclopedia of Industrial Chemistry   [0003] 
Ullmann's Encyclopedia of Industrial Chemistry   [0004] 
Rubber Technology   [0004] 
Polymer   [0019] 
Rubber Technology   [0033]