Description  Claims  Drawing  Cited references 

US6326453B2   [0009] 
EP1108734A1   [0009] 
JP11349655A   [0010] 
US7488784B2   [0012] 
US4167540A   [0013] 
EP0501227B1   [0073] 

Phenolic Resins - A Century of Progress   [0002] 
Polymer   [0004] 
Mining and Metallurgy   [0011]