公开(公告)号：CA2625624A1

公开(公告)日：2007-08-23

申请号：CA2625624

申请日：2006-10-17

Applicant: BASF AG

Inventor： GOEDEL WERNER A ,  BLANZ BIRGIT ,  MARTIN INGRID ,  AUWETER HELMUT ,  PFLUGER PETER ,  KOLTZENBURG SEBASTIAN ,  SCHAFER ANSGAR

IPC: A01N25/04 ,  A01N25/28 ,  A01N43/40 ,  A01N43/653 ,  A01N47/24 ,  A01N47/34 ,  A01N53/00 ,  A01P3/00 ,  A01P7/00 ,  A01P13/00

Abstract: 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.

公开(公告)号：DE102005054692A1

公开(公告)日：2007-05-24

申请号：DE102005054692

申请日：2005-11-16

Applicant: BASF AG

Inventor： GOEDEL WERNER A ,  BLANZ BIRGIT ,  LEYRER REINHOLD J ,  AUWETER HELMUT ,  MARTIN INGRID

IPC: B01J13/04 ,  B01F3/08 ,  C08J3/20 ,  C09B67/46 ,  C09B69/10 ,  C09D5/02

Abstract: Method of loading a dispersion with at least an active- or effect material, which is insoluble in the coherent phase of the dispersion, comprises allocating and contacting the dispersion and a solution of the active- or effect material in a solvent, which is at least partially miscible with the coherent phase of the dispersion. An independent claim is included for the active- or effect material.