Description     Claims  

US4062647A   [0004] 
GB2138037A   [0004] 
US4885101A   [0004] 
EP0299575A   [0005] 
US4585563A   [0006] 
US5277968A   [0006] 
US4419250A   [0007] 
US4421657A   [0007] 
US4482477A   [0007] 
EP0163352A   [0007] 
EP0381487A   [0007] 
US2005170995A   [0008] 
US2005170996A   [0008] 
US2005170997A   [0008] 
WO9207927A   [0009] 
US6656901B2   [0010] 
WO02092748A   [0010] 
WO03055966A   [0010] 
GB2357523A   [0035] 
WO0144425A   [0035] 
EP150872A   [0040] 
WO9201773A   [0040] 
US4800026A   [0040] 
US4448810A   [0040] 
EP459821A   [0040] 
WO0071806A   [0040] 
WO0071807A   [0040] 
US5668102A   [0040] 

The Chemistry and Physics of Clays   [0036]