Solid microspheres for agriculturally active compounds and...

Details Solid microspheres for agriculturally active compounds and... Solid microspheres for agriculturally active compounds and...

A - Human Necessities

01

N

A01N 53/08 (2006.01) A01N 25/28 (2006.01) A01N 53/00 (2006.01) A01N 57/00 (2006.01)

Patent

CA 2194389

Microspheres containing an agriculturally active material are produced by mixing a liquid phase containing the agriculturally active material and optionally an emulsifying agent and an aqueous phase containing polyvinyl alcohol and adding a material selected from clays, silicas, starch, and starch derivatives, followed by spray drying.

On obtient des microbilles renfermant un matériau actif utile dans l'agriculture en mélangeant une phase liquide contenant le matériau actif dans l'agriculture, et éventuellement un agent émulsifiant et une phase aqueuse contenant de l'alcool polyvinylique, et en ajoutant un matériau sélectionné parmi les argiles, les silices, l'amidon et les dérivés d'amidon, puis en séchant par pulvérisation.

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