An absorbent compacted composition is disclosed. The absorbent compacted composition of the present invention consists essentially of clay, a finely divided cellulosic material, such as fir, and finely divided pine. The amount of finely divided cellulosic material and finely divided pine is enough to...http://www.google.es/patents/US6401662?utm_source=gb-gplus-sharePatente US6401662 - Absorbent compacted composition