CROSS-LINKED MODIFIED WAXES FOR CONTROLLED RELEASE FERTILIZERS

CROSS-LINKED MODIFIED WAXES FOR CONTROLLED RELEASE FERTILIZERS

A controlled release fertilizer material comprising a particulate plant nutrient surrounded by, a coating of a mixture including an isocyanate and a polyol, and further comprising a modified wax that may include a polyhydroxyt compound in which the wax and/or the polyhydroxyl compound are cross-link...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MARUVADA SRIRAMAKRISHNA, WILSON ROBERT SCOTT, XING BAOZHONG, HARGROVE GARRARD LEE, WYNNYK NICK PETER
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
FERTILISERS
FERTILISERS PRODUCING CARBON DIOXIDE
INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C
MANUFACTURE THEREOF
METALLURGY
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Beschreibung
Zusammenfassung:A controlled release fertilizer material comprising a particulate plant nutrient surrounded by, a coating of a mixture including an isocyanate and a polyol, and further comprising a modified wax that may include a polyhydroxyt compound in which the wax and/or the polyhydroxyl compound are cross-linked with a sulfur or oxygen or a peroxide cross-linking moiety. In certain embodiments, the wax and polyhydroxyl compound are cross-linked at unsaturated sites in the wax or polyhydroxyl compound using heat, UV or ionizing radiation.