Agrium Advanced Technologies (u.s.) Inc.

Koch Agronomic Services, LLC

Agrium U.S. Inc.

Sriramakrishna Maruvada

Garrard Lee Hargrove

Baozhong Xing

Nick Peter Wynnyk

Leslie L Carstens

Robert Scott Wilson

Romem Avdala

Romen Avdala

A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition. The controlled release fertilizer composition includes a fertilizer core that is coated with a polymeric layer, such as polyurethane, that includes an organic carbonate additive.

Fertilizer granules having polymeric coating with organic carbonate

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 polyhydroxyl 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.

Cross-linked modified waxes for controlled release fertilizers

A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating which is the reaction product of a mixture including a cross-linked polyol, an isocyanate and a wax is described. The cross-linked polyol is a reaction product of a polyhydroxyl compound, such as glycerol, and a triglyceride and the monoglyceride and/or diglyceride products are cross-linked with sulfur, oxygen and/or a peroxide cross-linking moiety, or are directly cross-linked at unsaturated sites in the monoglycerides and/or diglycerides.

Controlled release fertilizers made from cross-linked glyceride mixtures

Growing community of inventors

Birmingham, AL, United States of America

Sriramakrishna Maruvada