Method of microencapsulating an agricultural active having a high melting point and uses for such materials
申请人:Monsanto Technology, L.L.C.
公开号:US20030022791A1
公开(公告)日:2003-01-30
A method of producing a controlled release form of an agricultural active material includes the provision of an organic liquid composition in which the active is present, but where the liquid composition is free from aromatic solvents and is maintained below the normal melting point of the active. The liquid composition is formed into small droplets and the droplets are enclosed by a non-water soluble shell to provide microcapsules, the shell of which is designed to release the agricultural active at a pre-selected controlled rate when the microcapsule is exposed to natural environmental conditions. Controlled release forms of agricultural actives are also provided.
一种生产农用活性物质控释形式的方法包括提供一种有机液体组合物,其中含有活性物质,但液体组合物不含芳香族溶剂,并保持低于活性物质的正常熔点。液体组合物形成小液滴,小液滴被非水溶性外壳包裹,形成微胶囊,当微胶囊暴露在自然环境条件下时,微胶囊外壳可按预先选择的可控速率释放农用活性物质。此外,还提供了农业活性物质的控释形式。