Pearl polymerizate formulations

A - Human Necessities – 01 – N

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A01N 25/10 (2006.01)

Patent

CA 2321440

The invention relates to novel pearl polymerizate formulations, comprising I) a particle-shaped solid phase and II) an optional liquid phase. The solid phase contains: A) a copolymerizate consisting of a) 40 to 95 wt. % of a water- insoluble monomer; b) 5 to 35 wt. % of a water-soluble monomer and c) 0 to 25 wt. % of a cross-linking agent; B) at least one agrochemical active agent and C) optionally additives. The agrochemical active agent content ranges from 5 to 75 wt. % and the solid phase has a mean particle size ranging between 1 and 100 µm. The invention also relates to a method for the production of the novel formulations and their use in the application of agrochemical active agents.

L'invention concerne de nouvelles formulations de polymères en perles, constituées I) d'une phase solide à particules et II) éventuellement d'une phase liquide. La phase solide contient A) un copolymère composé a) de 40 à 95 % en poids d'un monomère non soluble dans l'eau, b) de 5 à 35 % en poids d'un monomère soluble dans l'eau et c) de 0 à 25 % en poids d'un agent de réticulation, B) au moins un agent agrochimique et C) éventuellement des additifs. La teneur en agent agrochimique est comprise entre 5 et 75 % en poids et la phase solide présente une taille moyenne de particule comprise entre 1 et 100 µm. L'invention concerne également un procédé pour la production de ces nouvelles formulations et leur utilisation pour l'application d'agents agrochimiques.

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