A - Human Necessities – 01 – N
Patent
A - Human Necessities
01
N
A01N 25/04 (2006.01) A01N 25/28 (2006.01) A01N 53/00 (2006.01) A01N 59/20 (2006.01)
Patent
CA 2692544
The invention relates to a novel method for formulating any agrochemical active principle so as to protect the user, to protect this active principle from external attacks, and to control its release kinetics. It rests on the use of acrylic thickening emulsions having a pH above 5 and containing hydrophobic groups, in order to trap said active principle. The invention also relates to the various embodiments of the active principle thus formulated: a mixture in water of this active principle with these thickening emulsions, a dispersion of solid particles of these polymers and of this active principle after acidification, and the solid particles obtained in the dry state after removal of the water. The invention finally relates to the use of these various formulations with a view to protecting an active principle, protecting its user and slowing down its release kinetics.
L'invention concerne une nouvelle méthode pour formuler un principe actif agrochimique quelconque de manière à protéger l'utilisateur, à protéger ce principe actif des agressions extérieures, et à contrôler sa cinétique de libération. Elle repose sur l'utilisation d' emulsions acryliques et épaississantes a pH supérieur à 5 et contenant des groupements hydrophobes, afin de piéger ledit principe actif. L'invention concerne aussi les différents modes de réalisation du principe actif ainsi formulé : un mélange dans l'eau de ce principe actif avec ces. emulsions épaississantes, une dispersion de particules solides de ces polymères et de ce principe actif après acidification, et les particules solides obtenues a l'état sec après élimination de l'eau. L'invention concerne enfin l'utilisation de ces différentes formulations en vue de protéger un principe actif, de protéger son utilisateur et de ralentir sa cinétique de libération.
Guerret Olivier
Kensicher Yves
Suau Jean-Marc
Coatex S.a.s.
Robic
LandOfFree
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