Agrochemical nanoparticulate active ingredient formulations

    公开(公告)号:ZA200804477B

    公开(公告)日:2009-08-26

    申请号:ZA200804477

    申请日:2008-05-23

    Applicant: BASF SE

    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.

    processo para preparar compostos de imidazólio iônicos, poliméricos

    公开(公告)号:BRPI0923389B8

    公开(公告)日:2019-07-02

    申请号:BRPI0923389

    申请日:2009-12-10

    Applicant: BASF SE

    Abstract: processo para preparar compostos de imidazólio iônicos, poliméricos a invenção diz respeito a um processo para produzir compostos de imidazólio iônicos, poliméricos, caracterizado pelo fato de que - um composto de alfa -dicarbonila, - um aldeído, - pelo menos um composto de amino tendo pelo menos dois grupos amino primário, - opcionalmente um composto de amino tendo apenas um grupo amino primário, e - um hidrácido são reagidos entre si, em que opcionalmente os grupos carbonila do composto de alfa-dicarbonila e do aldeído também podem estar presentes como hemiacetais, acetais, hemicetais, ou cetais.

    Method for producing random radical copolymers and corresponding active ingredient compositions obtainable therefrom

    公开(公告)号:AU2009324248A1

    公开(公告)日:2011-06-23

    申请号:AU2009324248

    申请日:2009-11-30

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing random radical copolymers, characterized by the following steps: a) dissolving by heating a) at least one olefinically unsaturated sulfonic acid of formula (I); wherein n is 0 to 10; X represents O or NR; R represents hydrogen or methyl; R, R independently represent hydrogen or C to C alkyl and R represents hydrogen, alkyl, aryl, alkylaryl, arylalkyl, alkoxyalkyl, aryloxyalkyl, alkoxyaryl, hydroxyalkyl, (di)alkylaminoalkyl, (di)alkylaminoaryl, (di)arylaminoalkyl, alkylarylaminoalkyl or alkylarylaminoaryl, wherein the aryl groups can be mono- or polysubstituted, the salts thereof or mixtures of acid and salts and b) at least two structurally distinct olefinically unsaturated monomers of formula (II), wherein Y represents O or NR; R represents hydrogen or methyl; R represents alkyl, hydroxyalkyl, (di)alkylaminoalkyl or (di)alkylaminoaryl and R represents hydrogen, alkyl, aryl, alkylaryl, arylalkyl, alkoxyalkyl, aryloxyalkyl, alkoxyaryl, hydroxyalkyl, (di)alkylaminoalkyl, (di)alkylaminoaryl, (di)arylaminoalkyl, alkylarylaminoalkyl or alkylarylaminoaryl, and c) optionally one or more olefinically unsaturated monomers which can be structurally distinct from components (a) and (b), and at least one initiator, either (i) in a solvent mixture which contains water and a solvent having a boiling point below 140°C and being soluble in water, or (ii) in one or more pure alcohols, and polymerizing said mixture in solution, the copolymer formed also remaining dissolved. The copolymers obtainable according to the above method are suitable as formulation adjuvants in agrochemical active ingredient compositions.

    Nanoparticulate active ingredient formulations

    公开(公告)号:ZA200804427B

    公开(公告)日:2009-08-26

    申请号:ZA200804427

    申请日:2008-05-22

    Applicant: BASF SE

    Abstract: The present invention relates to 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 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-miscible organic solvent, (b) mixing the solution obtained in step (a) with the core polymer or a solution of the core polymer in a water-miscible organic solvent, where the polymer is not or only partially soluble in water or aqueous solutions or water/solvent mixtures, and (c) bringing the mixture resulting from (b) into contact with an aqueous solution comprising components of the coating matrix.

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