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    SPHERICAL MICROPARTICLES
    2.
    发明申请
    SPHERICAL MICROPARTICLES 有权

    公开(公告)号：US20210024715A1

    公开(公告)日：2021-01-28

    申请号：US17045691

    申请日：2019-04-04

    Applicant: BASF SE

    Inventor： Bernd Dieter OSCHMANN ,  Wolfgang KRAUSE ,  Patrick LEIBACH ,  Kerstin MUELHEIMS ,  Ralf PELZER ,  Ewelina BURAKOWSKA-MEISE

    IPC: C08J9/00 ,  A61K8/11 ,  A61K8/02 ,  A61K8/85 ,  A61K9/16 ,  C11D3/50 ,  C11D3/37

    Abstract: The present invention relates to a composition of spherical microparticles composed of a wall material and at least one cavity that comprises a gas and/or a liquid, which have pores on the surface thereof, wherein the spherical microparticles have a mean particle diameter of 10-600 μm and wherein at least 80% of those microparticles, the particle diameter of which does not deviate from the mean particle diameter of the microparticles of the composition by more than 20%, each have on average at least 10 pores, the diameter of which is in the range from 1/5000 to 1/5 of the mean particle diameter, and, furthermore, the diameter of each of these pores is at least 20 nm, wherein the wall material consists of a composition comprising at least one aliphatic-aromatic polyester and at least one additional polymer, wherein the additional polymer is selected from the group consisting of polyhydroxy fatty acids, poly(p-dioxanones), polyanhydrides, polyesteramides, polysaccharides and proteins, to a method for the preparation thereof and use thereof.

    ANIONIC POLYVINYL ALCOHOL COPOLYMER AS PROTECTIVE COLLOID FOR PESTICIDAL POLYUREA MICROCAPSULES
    6.
    发明申请
    ANIONIC POLYVINYL ALCOHOL COPOLYMER AS PROTECTIVE COLLOID FOR PESTICIDAL POLYUREA MICROCAPSULES 审中-公开
    阴离子聚乙烯醇共聚物作为防腐胶囊用于农药聚氨酯微球

    公开(公告)号：US20170042143A1

    公开(公告)日：2017-02-16

    申请号：US15307143

    申请日：2015-04-27

    Applicant: BASF SE

    Inventor： Ewelina BURAKOWSKA-MEISE ,  Joanna MECFEL-MARCZEWSKI ,  Matthias BRATZ ,  Wolfgang DENUELL ,  Steven BOWE ,  Ronald REPAGE ,  John FRIHAUF

    IPC: A01N25/28 ,  B01J13/18 ,  A01N43/56 ,  A01N43/90 ,  A01N43/10 ,  A01N37/22

    CPC classification number: B01J13/14 ,  A01N25/28 ,  A01N37/22 ,  A01N43/10 ,  A01N43/56 ,  A01N43/90 ,  A61K8/11 ,  A61K9/5026 ,  A61K9/5089 ,  A61Q19/00 ,  B01J13/16 ,  B01J13/18 ,  C11D3/3753 ,  C11D17/0039

    Abstract: The present invention relates to a process for producing microcapsules which contain a shell and a core of a liquid water-insoluble material, where (a) a premix (I) is prepared from water and a protective colloid; (b) a further premix (II) is prepared from the water-insoluble material and at least bifunctional isocyanate (A) or a mixture of two or more different isocyanates containing (A); (c) the two premixes (I) and (II) are mixed together until an emulsion is formed; (d) at least a bifunctional amine is then poured into the emulsion from step (c); and (e) the emulsion is then heated until the microcapsules are formed, and where the liquid water-insoluble material comprises a pesticide, where the protective colloid is a polyvinyl alcohol copolymer having hydrolysis degrees from 60 to 99.9%, and where the polyvinyl alcohol copolymer contains comonomers with anionic groups. Further subject matter are microcapsules obtainable by said process. The present invention also relates to a method of controlling phytopathogenic fungi and/or undesired plant growth and/or undesired insect or mite attack and/or for regulating the growth of plants, wherein the microcapsules are allowed to act on the respective pests, their environment or the crop plants to be protected from the respective pest, on the soil and/or on undesired plants and/or on the crop plants and/or on their environment.

    Abstract translation: 本申请描述了一种生产微胶囊的方法，其中包含在聚乙烯醇共聚物存在下获得的由聚脲制成的壳。

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