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US 10,865,159 B2Granted
Methods of manufacture for coated granular fertilizers
AssigneeSabic Global Technologies B.V.
InventorsGanesh Kannan, Christina Posada, James Haigh, Sabeshan Kanagalingam, Travis Harper
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Abstract
A process of manufacturing a coated fertilizer comprising: providing at least partially coated fertilizer granules having an at least partial coating comprising a polymer and a wax; and conditioning the at least partially coated fertilizer granules at a temperature of 40 to 130° C. for a time of 1 minute to 4 hours, to form a coating comprising interpenetrating domains comprising polymer domains and wax domains.
Claims19
A process of manufacturing a coated fertilizer comprising:
- pre-treating a fertilizer granule with conditions effective to improve surface adherence properties to a coating by heating the fertilizer granule to a temperature greater than or equal to 90° C. for a time period of greater than or equal to 1 hour, to obtain a pre-treated fertilizer granule;
- at least partially coating the pre-treated fertilizer granule to obtain an at least partially coated fertilizer granule, wherein the coating comprises a polymer and a wax;
- and
- conditioning the at least partially coated fertilizer granule at a temperature of 40 to 130° C. for a time of 1 minute to 4 hours, to form a conditioned coating comprising interpenetrating domains comprising polymer domains and wax domains.
1 more element
Dependencies are inferred from the claim text.