Foaming granule and method for making same

Details Foaming granule and method for making same Foaming granule and method for making same

B - Operations, Transporting

01

F

B01F 17/00 (2006.01) A01N 25/16 (2006.01) A01P 7/04 (2006.01) A01P 21/00 (2006.01) C09K 3/18 (2006.01)

Patent

CA 2656829

A foaming granule is provided that includes an acid, a gas-evolving acid neutralizing agent, a surfactant foaming agent, and an active agent that is a plant growth enhancer, pest control agent, de-icer or anti-icer. Upon wetting a granule, the acid and neutralizing agent are brought into contact releasing gas that is trapped in the surfactant to form a foam that disperses the active agent to a greater area and more uniformly than a conventional nonfoaming granule containing a like amount of active agent. Dispersal of granules followed by sufficient time for foaming to occur represents a typical use methodology.

La présente invention concerne un granule expansible comprenant un acide, un agent de neutralisation d~acide dégageant un gaz, un agent d~expansion tensioactif et un agent actif qui est un composé favorisant la croissance des plantes, un agent anti-parasite, un agent dégivrant ou un agent antigivre. Lorsque l~on mouille un granule, l'acide et l'agent de neutralisation sont mis en contact libérant ainsi un gaz qui est piégé dans l'agent tensioactif afin de former une mousse qui disperse l'agent actif sur une plus grande zone et de manière plus uniforme qu'un granule non expansible classique contenant une quantité équivalente d~un agent actif. La dispersion des granules suivie d~une durée suffisante pour réaliser l~expansion représente une méthodologie d'utilisation typique.

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