发明名称 |
Agrochemical nanoparticulate active ingredient formulations |
摘要 |
The present invention comprises aqueous dispersions comprising a nanoparticulate formulation of crop protection agents in which the nanoparticles have core-shell structures having a mean particle diameter of 0.05 to 2.0 mum and the crop protection agent is present in the core X-ray amorphous together with one or more polymers, where the polymer is not or only partially soluble in water or aqueous solutions or water/solvent mixtures and the shell consists of a stabilizing coating matrix, preparable by a process which comprises (a) preparing a solution of the crop protection agent in a water-immiscible organic solvent, (b) dissolving the core polymer in a water-immiscible organic solvent; and (c) emulsifying the mixture resulting from (a) and (b) with an aqueous solution comprising components of the coating matrix by injecting the corresponding solutions into a mixing chamber and removing the organic solvent after emulsification. |
申请公布号 |
ZA200804477(B) |
申请公布日期 |
2009.08.26 |
申请号 |
ZA20080004477 |
申请日期 |
2008.05.23 |
申请人 |
BASF SE |
发明人 |
GOEDEL, WERNER A.;AUWETER, HELMUT;KOLTZENBURG, SEBASTIAN;SCHAEFER, ANSGAR;PFLUEGER, PETER;BLANZ, BIRGIT;MARTIN, INGRID |
分类号 |
A01N;A01P |
主分类号 |
A01N |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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