MODIFIZIERTE ZNO-NANOPARTIKEL
    27.
    发明公开
    MODIFIZIERTE ZNO-NANOPARTIKEL 审中-公开
    改性ZNO-NANOPARTIKEL

    公开(公告)号:EP2445974A1

    公开(公告)日:2012-05-02

    申请号:EP10725770.1

    申请日:2010-06-22

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing modified zinc oxide nanoparticles, characterized in that the zinc oxide nanoparticles, which are dissolved in a solvent, are reacted in the presence of ammonia or amines with a tetraalkyl-orthosilicate, and optionally with an organosilane, under the proviso that the reaction takes place at a content of less than 5% by weight water, relative to the total quantity of solvent and water. Said production method can be used to obtain modified zinc oxide nanoparticles, which comprise Si-O-alkyl groups and can be solved in organic solvents. In addition, liquid or solid formulations containing modified ZnO nanoparticles can be obtained. Inanimate organic materials, such as plastics or paints, containing modified ZnO nanoparticles may also be obtained. The invention further relates to a method for stabilizing inanimate organic materials against the effects of light, radicals or heat, wherein modified ZnO nanoparticles, which optionally comprise UV absorbers and/or stabilizers as further additives, are added to the materials.

    Abstract translation: 制备改性氧化锌纳米颗粒的方法,其包括将溶于溶剂的氧化锌纳米颗粒在氨或胺与原硅酸四烷基酯和任选的有机硅烷的存在下反应,条件是反应发生在 基于溶剂和水的总量小于5重量%的水的含量。 具有Si-O-烷基且可溶于有机溶剂的改性氧化锌纳米颗粒,可通过该制备方法获得。 包含改性ZnO纳米颗粒的液体或固体制剂。 无生命的有机材料,例如塑料或涂层,其包含改性的ZnO纳米颗粒。 对于光,自由基或热的影响稳定无生命有机材料的方法,其中任选地包含UV吸收剂和/或稳定剂作为其它添加剂的改性ZnO纳米颗粒被加入到材料中。

    MODIFIZIERTE ZINKOXID-TEILCHEN
    28.
    发明公开
    MODIFIZIERTE ZINKOXID-TEILCHEN 有权
    改性的氧化锌粒子

    公开(公告)号:EP2313345A1

    公开(公告)日:2011-04-27

    申请号:EP09780531.1

    申请日:2009-07-14

    Applicant: BASF SE

    CPC classification number: C09C1/043 C01G9/02 C01P2002/84

    Abstract: The invention relates to a method for producing modified ZnO particles in which a zinc salt and a base are mixed in a polar solvent and the polar solvent is optionally removed after precipitation of a precipitation product, resulting in a residue, wherein the residue is absorbed in a non-polar solvent, surface active substances are added, other active substances are optionally added and then the modified ZnO particles are separated from other byproducts. The invention also relates to materials such as plastics, varnishes or paints containing modified ZnO particles. The invention also relates to a method for incorporating modified ZnO particles into materials, wherein the modified ZnO particles are incorporated into the materials in the form of dispersions or suspensions, and to the use of modified ZnO particles for protecting materials against the effects of light, heat, oxygen or radicals, as catalysts, for semiconducting layers or for cosmetic uses.

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