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US 12,715,820 B2Granted
Coated granular fertilizers and methods of making coated granular fertilizers
AssigneeAqua Yield Operations, Inc.
InventorsGarrett Olsen, Mark Slavens
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Abstract
A method of coating granular fertilizers for improved mechanical rigidity and delayed release of fertilizer compounds. The method includes preparing a solution that includes a first polymer that is water soluble and a second polymer comprising a copolymer. The method also includes adding a plurality of fertilizer granules to the solution and blending the solution until at least a portion of the plurality of fertilizer granules are coated with the first polymer and the second polymer.
Claims21
A method comprising:
- preparing a solution comprising:
- a first polymer that is water soluble;
- a second polymer comprising a copolymer;
- and
- a plurality of fertilizer granules;
- and
- blending the solution until at least a portion of the plurality of fertilizer granules are coated with the first polymer and the second polymer.
4 more elements
A method comprising:
- preparing a solution comprising:
- a first polymer that is water soluble;
- a second polymer comprising a copolymer;
- and
- a plurality of fertilizer granules;
- and
- blending the solution until at least a portion of the plurality of fertilizer granules are coated with the first polymer and the second polymer;
- wherein the solution comprises equal parts by weight of the first polymer and the second polymer, within a margin of error of about 10%.
5 more elements
Dependencies are inferred from the claim text.