Ultra-high loading glyphosate concentrate

A - Human Necessities – 01 – N

Patent

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A01N 57/20 (2006.01) A01N 25/30 (2006.01) A01P 13/00 (2006.01)

Patent

CA 2727924

This invention relates to a storage stable, aqueous, herbicidal formulation containing an ultra-high concentration of glyphosate in the isopropylamine, potassium or mixed salt form in combination with a surfactant system, to a method of making the formulation, and to a method of treating unwanted vegetation employing the formulation. The surfactant system employed in the concentrate comprises dialkoxylated alkylamine, water miscible solubilizer and amine oxide. The surfactant system unexpectedly permits the formulation of storage stable, ultra-high loaded aqueous glyphosate salt concentrates possessing high or no cloud points.

La présente invention concerne une formulation désherbante aqueuse et stable au stockage contenant une concentration très élevée de glyphosate dans la forme isopropylamine, potassium ou saline mélangée en combinaison avec un système tensio-actif. L'invention concerne également un procédé permettant de fabriquer la formulation, ainsi qu'un procédé permettant de traiter une végétation non souhaitée au moyen de la formulation. Le système tensio-actif utilisé dans le concentré comprend une alkylamine dialkoxylatée, un agent solubilisant miscible dans l'eau et un oxyde d'amine hydro-miscible. Le système tensio-actif permet, d'une manière inattendue, la formulation de concentrés de sels glyphosate aqueux à très forte concentration et stables au stockage présentant une taux de points troubles élevé ou inexistant.

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