Improved glyphosphate herbicide formulation

Details Improved glyphosphate herbicide formulation Improved glyphosphate herbicide formulation

A - Human Necessities

01

N

A01N 57/20 (2006.01) A01N 25/14 (2006.01) A01N 25/30 (2006.01)

Patent

CA 2101669

This invention relates to a novel dry free-flowing, non-dusty, non-sticky water-soluble granular composition most preferably prepared by extrusion which comprises (a) N-phosphonomethylglycine and/or one or more salts thereof or mixtures thereof, (b) one or more surfactants and (c) an extrusion aid which is solid at ambient temperature, the extrusion aid which further comprises a polyalkylene glycol in which the alkylene oxide units are ethylene oxide, propylene oxide, butylene oxide or a mixture of such oxides. This invention also relates to processes for preparing and to a herbicidal method of using compositions of the invention to kill or control unwanted vegetation by applying an aqueous solution of the composition of this invention to the plants to be killed or controlled.

L'invention concerne une nouvelle composition granulaire sèche, à écoulement fluide, non poussiéreuse, non collante et soluble dans l'eau préparée le plus préférablement par extrusion. La composition comprend a) de la N-phosphonométhylglycine et/ou un ou plusieurs sels ou mélanges correspondants, b) un ou plusieurs surfactants et c) une aide à l'extrusion qui est solide à la température ambiante, cette aide comprenant un polyalkylène glycol dans lequel les unités d'oxyde d'alkylène sont l'oxyde d'éthylène, l'oxyde de propylène, l'oxyde de butylène ou un mélange de ces oxydes. L'invention a aussi trait à des processus de préparation des compositions dévoilées et à une méthode herbicide où les compositions en question sont utilisées pour détruire ou combattre la végétation indésirable par application d'une solution aqueuse de la composition dévoilée sur les plantes à détruire ou à combattre.

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