PRECIPITATING NANOPARTICLES IN MONOMERS FOR PRODUCING HYBRID PARTICLES
    2.
    发明申请
    PRECIPITATING NANOPARTICLES IN MONOMERS FOR PRODUCING HYBRID PARTICLES 审中-公开
    在生产混合颗粒的单体中预处理纳米颗粒

    公开(公告)号:US20150225532A1

    公开(公告)日:2015-08-13

    申请号:US14427177

    申请日:2013-09-09

    Applicant: BASF SE

    Abstract: The present invention relates to a process for producing hybrid nanoparticles comprising at least one inorganic material and at least one polymeric organic material, comprising at least the steps of (A) providing an emulsion comprising a disperse phase (I) comprising at least one pre-cursor compound of the at least one polymeric organic material and at least one compound which brings about the precipitation of the at least one inorganic material, a continuous aqueous phase (II), and optionally at least one compound which brings about the polymerization of the at least one precursor compound, this being present in the disperse phase (I), in the continuous aqueous phase (II) or in both phases (I) and (II), (B) adding at least one precursor compound of the at least one inorganic material to the emulsion from step (A), so as to form the at least one inorganic material by precipitation in the disperse phase, (C) optionally adding at least one compound which brings about the polymerization of the at least one precursor compound of the at least one polymeric organic material if this has not been done in step (A), and (D) polymerizing the at least one precursor compound of the at least one polymeric organic material. The present invention additionally relates to nanoparticles producible by the process according to the invention, and to the use of inventive nanoparticles in optical, electronic, chemical, agro-chemical, medical, pharmaceutical and/or biotechnological systems or for the administration of at least one active ingredient.

    Abstract translation: 本发明涉及一种制备包含至少一种无机材料和至少一种聚合物有机材料的混合纳米颗粒的方法,至少包括以下步骤:(A)提供包含分散相(I)的乳液,所述分散相(I) 所述至少一种聚合物有机材料的光标化合物和至少一种导致至少一种无机材料沉淀的化合物,连续的水相(II)和任选的至少一种导致在 至少一种前体化合物,其存在于分散相(I)中,连续水相(II)或两相(I)和(II)中,(B)加入至少一种前体化合物 无机材料加入到步骤(A)的乳液中,以通过在分散相中沉淀形成至少一种无机材料,(C)任选地加入至少一种导致聚合的化合物o f至少一种聚合有机材料的前体化合物,如果在步骤(A)中还没有进行,和(D)使至少一种聚合物有机材料的至少一种前体化合物聚合。 本发明还涉及通过本发明的方法生产的纳米颗粒,以及本发明的纳米颗粒在光学,电子,化学,农业化学,医学,制药和/或生物技术系统中的用途,或者用于至少一种 有效成分。

    Finely divided particles of core-shell structure
    3.
    发明申请
    Finely divided particles of core-shell structure 审中-公开
    核 - 壳结构微细颗粒

    公开(公告)号:US20140061026A1

    公开(公告)日:2014-03-06

    申请号:US14013749

    申请日:2013-08-29

    CPC classification number: C08K5/05 C08K3/08 C08K3/22 C08K3/36

    Abstract: The invention provides a process for producing finely divided particles of core-shell structure where the shell comprises at least one polymer, said process comprising the steps of: i. providing a first aerosol stream of droplets in a carrier gas stream wherein the droplets comprise at least one monomer and charging droplets of the first aerosol with electric charge; ii. providing a second aerosol stream of solid particles in a carrier gas stream and charging the solid particles of the aerosol with an electric charge opposite to the electric charge on the droplets of the first aerosol stream; iii. mixing the first aerosol stream with the second aerosol stream to form a mixed aerosol stream; iv. initiating a polymerization of the monomers by irradiating this mixed aerosol stream with electromagnetic radiation. The invention also provides the finely divided particles of core-shell structure which are obtainable by this process.

    Abstract translation: 本发明提供了一种生产核 - 壳结构细碎颗粒的方法,其中壳包含至少一种聚合物,所述方法包括以下步骤: 在载气流中提供第一气溶胶流,其中所述液滴包含至少一个单体,并且用电荷充入第一气溶胶的液滴; ii。 在载气流中提供固体颗粒的第二气溶胶流,并以与第一气溶胶流的液滴上的电荷相反的电荷装入气溶胶的固体颗粒; iii。 将第一气溶胶流与第二气溶胶流混合以形成混合的气溶胶流; iv。 通过用电磁辐射照射该混合气溶胶流来引发单体的聚合反应。 本发明还提供了可通过该方法获得的细碎的核 - 壳结构颗粒。

    A PROCESS FOR PREPARING AN AQUEOUS DISPERSION OF MICROPARTICLES

    公开(公告)号:US20180297001A1

    公开(公告)日:2018-10-18

    申请号:US15769158

    申请日:2016-10-20

    Applicant: BASF SE

    Abstract: Provided herein is a process for preparing an aqueous dispersion of microparticles containing a water-insoluble, solid, non-polymeric, organic active or functional material (M) and an aminoplast resin (A) which surrounds or embeds material (M). The process includes the following steps: i) providing an aqueous slurry of the material (M) in the form of coarse particles; ii) subjecting the aqueous slurry to shear forces such that the coarse particles of the material (M) are comminuted and an aqueous suspension of fine particles of the material (M) is obtained; and iii) performing a polycondensation of an aminoplast pre-condensate during step (ii) or in the aqueous suspension of the fine particles of the material (M) obtained in step (ii); wherein step (ii) is performed in the presence of at least one protective colloid and in the presence of at least a portion of the aminoplast pre-condensate subjected to the polycondensation of step (iii).

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