Description     Claims  

US4794166A   [0009] 
US6004583A   [0010] 
US5969090A   [0050] 
US5900475A   [0050] 

Superabsorbent Polymers: Science and Technology   [0001] 
Superabsorbent Polymers: Science and Technology   [0003] 
Chemistry and Industry   [0007] 
Journal of Controlled Release   [0007] 
J. Biomed. Mater. Res.   [0007] 
Introduction to Physical Polymer Science   [0007]