A - Human Necessities – 01 – N
Patent
A - Human Necessities
01
N
A01N 25/26 (2006.01) C05F 3/02 (2006.01) C05F 5/00 (2006.01)
Patent
CA 2623740
A granular agrochemical composition is disclosed including a granular core material having a water soluble portion with a first coating layer applied on the surface of the core material and a second coating layer applied on the surface of the first coating layer. The first coating layer includes a wax composition having a biologically active ingredient incorporated therein and the second coating layer includes a polymeric composition. The granular agrochemical composition exhibits a controlled rate of release of the biologically active ingredient therefrom over a period greater than about 30 days from the date of initial exposure of the granular composition to moisture whereby essentially all of the biologically active ingredient incorporated in the wax material of the first coating layer is released from the granular composition before the water soluble portion of the granular core material is released from the granular composition.
L'invention porte sur une composition agrochimique granulaire comprenant un noyau présentant une fraction hydrosoluble, revêtu d'une première couche elle-même revêtue d'une deuxième couche. La première couche est une composition cireuse incluant un ingrédient biologiquement actif, et la deuxième couche est une composition de polymères. La composition agrochimique granulaire assure une vitesse de libération progressive de la quasi totalité de son ingrédient biologiquement actif présent dans la première couche pendant une période supérieure à 30 jours suivant son premier contact avec de l'humidité, et avant la libération de la fraction hydrosoluble de la composition granulaire.
Jacoba Van Boxtel-Verhoeven Lonneke
Lunde-Vannuys Petra Leonarda Henrica
Terlingen Johannes Gijsbertus Antonius
Oms Investments Inc.
Ridout & Maybee Llp
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