Patent ID: 11470811

Abstract:
Extruded granular sorbent formed of sorbent granules each being or including an extruded pellet containing water soluble binder sufficient to self-clump when wetted producing clumps of granules each having a clump retention rate of at least 90% and which shrink after clump formation during drying producing a nonstick clump that condenses pulling away from any contacting solid surface minimizing adhesion therebetween. Such clumps preferably also have a crush strength of at least 15 PSI when dry. Pellets preferably contain cold water-soluble amylopectin binder that not only solubilizes when wetted to facilitate clumping but which also opens the interior of the pellet improving absorption capacity. Sorbent well suited for use as litter is formed of granules or pellets having sizes falling within a plurality of different size ranges with the smaller sized fines causing the clumps to form on top of the litter extending generally horizontally along the litter.