Water-dispersible granular agricultural compositions made by...

A - Human Necessities – 01 – N

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A01N 43/66 (2006.01) A01N 25/14 (2006.01)

Patent

CA 2172399

Rapidly disintegrating water-dispersible granular agricultural compositions comprising by weight based on the total weight of the composition (a) 0.01-80 % of one or more active ingredients, (b) 0-60 % of a base, (c) 5-95 % of urea, (d) 1-30 % of one or more urea modifiers, (e) optionally one or more additives selected from the group consisting of wetting agents, dispersants, lubricants, anti-caking agents, chemical stabilizers, and inert diluents. Another embodiments of the invention is a process for preparing the composition comprising (a) extruding a dry premix through a die or a screen at elevated temperatures, preferably below 115 °C, said premix comprising the composition described above, and (b) cutting, breaking, or sieving the extruded strands to form granules.

L'invention concerne des compositions de granulés destinées à l'agriculture, se dispersant dans l'eau comprenant, en poids de la composition totale: (a) 0,01-80 % d'un ou de plusieurs ingrédients actifs, (b) 0-60 % d'une base, (c) 5-95 % d'urée, (d) 1-30 % d'un ou de plusieurs modificateurs d'urée, (e) éventuellement un ou plusieurs additifs choisis parmi les agents mouillants, les dispersants, les lubrifiants, les agents anti-agglutination, les stabilisants chimiques et les diluants inertes. Selon un autre aspect, l'invention concerne un procédé pour préparer une composition, consistant à (a) extruder un prémélange sec, par une filière, ou un écran à température élevée, de préférence inférieure à 115 DEG C, ledit prémélange comprenant la composition décrite ci-dessus et à (b) couper, casser ou tamiser les filaments extrudés, pour former des granulés.

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