Pesticidal aqueous suspension composition

A - Human Necessities – 01 – N

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Details

A01N 25/30 (2006.01) A01N 25/04 (2006.01) A01N 43/50 (2006.01) A01P 3/00 (2006.01)

Patent

CA 2714994

When an organosilicone surface active agent is added to a pesticidal aqueous suspension composition containing an active ingredient compound of a sparingly water-soluble pesticide for the purpose of attaining activity enhancement and formulation, the following problems arise: such that (1) the viscosity of the composition increases; (2) a large amount of foams due to the organosilicone surface active agent tends to generate at the time of preparation of a spray solution; and the like. Thus, measuring the composition and preparation of a spray solution were difficult. The present invention provides a pesticidal aqueous suspension composition including (a) an active ingredient compound of a sparingly water-soluble pesticide, (b) an organosilicone surface active agent, (c) a viscosity-reducing agent, (d) an antifoaming agent, (e) a pH adjustor and (f) a dispersant, which is suppressed in increasing in the viscosity, is easy to measure, hardly generates foams at the time of dilution with water and is easy to prepare a spray solution.

Lorsque l'on ajoute un agent tensioactif d'organosilicium à une composition pesticide en suspension aqueuse contenant un composé à ingrédient actif d'un pesticide peu hydrosoluble dans le but d'en accroître l'effet et d'en améliorer la préparation, on se heurte notamment aux problème suivants: (1) la viscosité de la composition augmente;et (2) de la mousse due à la présence de l'agent tensioactif d'organosilicium tend à se former en grande quantité au moment de la préparation d'une solution de pulvérisation, tous phénomènes qui rendent difficiles le dosage de la composition et la préparation de la solution de pulvérisation. Avec la présente invention, la composition pesticide en suspension aqueuse obtenue comprend: (a) une composition à ingrédient actif d'un pesticide peu hydrosoluble; (b) un agent tensioactif aux d'organosilicium, (c) un agent réducteur de viscosité, un agent anti-moussant (d), (e) un ajusteur de pH et (f) un dispersant qui disparaît lorsque la viscosité augmente, est facile à mesurer, ne produit pratiquement pas de mousse au moment de la dilution à l'eau et est facile à préparer en solution de pulvérisation

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