Treated non-hydrated super absorbent polymers
AssigneeDryject Inc. Acquisition Corp.
InventorJohn F. Paddock
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Abstract
Super absorbent polymers (SAP) generally exhibit adhesive and cohesive properties in the presence of moisture. To prevent unwanted absorption of moisture from the atmosphere, and in order to increase shelf life and handling life of SAPs; dried spent coffee ground powders may be mixed with the SAPs to prevent unwanted hydration of the SAP mixture. The natural oils in the grounds are responsible for providing a hydrophobic coating on the SAP particles.
Claims31
A method of treating and maintaining turf, comprising:
- producing successive high-pressure jets of pressurized liquid;
- directing said successive jets of pressurized liquid toward the ground creating a distribution pattern greater than 30 inches in width and at least 1 inch in depth along a path of travel, wherein said successive jets of pressurized liquid are at spaced intervals along said path of travel, and wherein the jets' depth of penetration into the soil is a function of the jets' pulse duration;
- producing successive charges of at least one additive material, the at least one additive material including at least a filler;
- maintaining each charge of said at least one additive material isolated from the liquid until a corresponding jet has been produced, the additive material isolated in a hopper that receives the additive material after passing through a plurality of sifters;
- and
- introducing a charge of said at least one additive material into said corresponding jet as said corresponding jet is directed toward the ground.
The method of claim 13 wherein the filler increases the water absorbency of the polymer.
A soil additive, the additive comprising:
- a superabsorbent polymer (SAP);
- and
- a powdered coffee filler coupled with the SAP.
Dependencies are inferred from the claim text.