Gødningsmidler med kontrolleret frigørelse, som har et grunderlag af epoxypolymer, og fremgangsmådertil fremstilling deraf

Controlled release, particulate fertilizer products having a water soluble fertilizer central mass encased in a plurality of water insoluble, abrasion resistant coatings plus coating compositions and methods for the production of such products are disclosed. At least one essential inner coating is a...

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Bibliographische Detailangaben
1. Verfasser:	HUDSON, ALICE P
Format:	Patent
Sprache:	dan
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON FERTILISERS FERTILISERS CHARACTERISED BY THEIR FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE THEREOF METALLURGY MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05 MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Controlled release, particulate fertilizer products having a water soluble fertilizer central mass encased in a plurality of water insoluble, abrasion resistant coatings plus coating compositions and methods for the production of such products are disclosed. At least one essential inner coating is an epoxide reaction product of A. at least one epoxide resin containing at least about 2 epoxide moieties per molecule, and B. at least one amine curing agent containing at least about two N-H moieties/molecule.