Semiconductor nanoparticles, method for producing the same, and fluorescence reagent comprising semiconductor nanoparticles
    2.
    发明公开

    公开(公告)号:EP1384757A2

    公开(公告)日:2004-01-28

    申请号:EP03016442.0

    申请日:2003-07-21

    摘要: This invention provides semiconductor nanoparticles having fluorescence properties and comprising a modifying group represented by the following general formula bound to their surfaces, a method for producing the same, and a fluorescence reagent comprising semiconductor nanoparticles:
       -OY wherein Y is selected from a hydrogen atom, a metal atom, a semimetal atom, an organic group, or an organic group that is intermediated by a metal atom or a semimetal atom. In this method, the surfaces of the semiconductor nanoparticles were modified with a hydroxyl group or the like for stabilization. This realizes the production of semiconductor nanoparticles having fluorescence properties that significantly emit only the band gap fluorescence, the production of which at the industrial level was previously very difficult due to the necessity of many processes and from the viewpoint of technology and safety.

    摘要翻译: 本发明提供了具有荧光特性的半导体纳米粒子,其包含与其表面结合的下列通式表示的改性基团,其制造方法和包含半导体纳米粒子的荧光试剂:其中Y为 选自氢原子,金属原子,半金属原子,有机基团或由金属原子或半金属原子中间的有机基团。 在该方法中,用羟基等改性半导体纳米颗粒的表面以进行稳定化。 这实现了具有显着地仅发射带隙荧光的荧光特性的半导体纳米颗粒的生产,由于需要许多工艺以及从技术和安全性的观点来看,其工业级的生产以前是非常困难的。

    Opacifying pigment particle
    8.
    发明公开
    Opacifying pigment particle 审中-公开
    TrübenderPigmentpartikel

    公开(公告)号:EP2253676A1

    公开(公告)日:2010-11-24

    申请号:EP10162764.4

    申请日:2010-05-13

    摘要: A process for forming an opacifying pigment encapsulated in polymer including (a) dispersing a pigment particle having an average particle diameter of from 150 to 500 nm and an index of refraction of at least 1.8 such as, for example, TiO2 in a medium with from 0.1% to 10% by weight, based on the weight of said pigment particle, sulfur acid-functional first polymer whereby the zeta potential of the dispersed pigment particle is less than -28 mV between pH 5 and pH 8; and (b) performing an emulsion polymerization in the presence of the dispersed pigment particle to provide from 10% to 200%, by weight, based on the weight of the pigment particle, second polymer that at least partially encapsulates the dispersed pigment particle. Also provided are the encapsulated pigment particle so formed and compositions including the encapsulated pigment particle.

    摘要翻译: 一种形成包封在聚合物中的不透明颜料的方法,包括(a)将平均粒径为150-500nm,折射率至少为1.8的颜料颗粒,例如TiO 2在介质中分散, 基于所述颜料颗粒的重量,0.1重量%至10重量%的硫酸官能的第一聚合物,由此分散的颜料颗粒的ζ电位在pH5和pH8之间小于-28mV; 和(b)在分散的颜料颗粒的存在下进行乳液聚合,以基于颜料颗粒的重量计提供至少部分包封分散的颜料颗粒的第二聚合物的10重量%至200重量%。 还提供如此形成的包封的颜料颗粒和包含包封的颜料颗粒的组合物。

    COATING OF ORGANIC AND INORGANIC PIGMENTS WITH ACRYLIC RESINS
    9.
    发明公开
    COATING OF ORGANIC AND INORGANIC PIGMENTS WITH ACRYLIC RESINS 有权
    使用具有丙烯酸树脂的有机或无机颜料都涂

    公开(公告)号:EP1976939A1

    公开(公告)日:2008-10-08

    申请号:EP06711383.7

    申请日:2006-01-16

    摘要: Coating of organic and inorganic pigments with acrylic resins, comprising a chemical compound consisting of particles of solid organic and inorganic substances, both defined as pigments, in that they are substances which absorb a fraction of the light and reflect the complementary part thereof, coated with acrylic and, optionally, aldehyde and/or ketone resins. The latter are deposited on the surface of the pigment by means of a process which envisages melting of the resin, consequent wetting and coating of the entire surface of the pigment with the resin in the melted state, the consequent cooling and subsequent step of grinding by means of mechanical systems operating in temperature conditions lower than 20° C, by means of cryogenic processes or granulate by means of a wet method with a water jet cutting action and separation of the granulates by the water on a vibrating screen and then dried on a spiral elevator. The product resulting from this invention will be used as a semifinished product for the colouring and pigmentation of powder paints and plastics as a monochromatic colouring material and or will also be used, after dissolving in a solvent, or in water with basic pH, as a pigmented paste or directly in solvent or water based resins in the liquid paints industry.

    Neues Verfahren zur Herstellung von Bleimolybdatpigmenten sowie neue farbstarke Bleimolybdatpigmente
    10.
    发明公开
    Neues Verfahren zur Herstellung von Bleimolybdatpigmenten sowie neue farbstarke Bleimolybdatpigmente 失效
    生产Bleimolybdatpigmenten和新的强烈着色钼酸铅颜料的新工艺。

    公开(公告)号:EP0313017A1

    公开(公告)日:1989-04-26

    申请号:EP88117400.7

    申请日:1988-10-19

    申请人: CIBA-GEIGY AG

    IPC分类号: C09C1/14

    CPC分类号: C09C1/14 C01P2006/60

    摘要: Verfahren zur Herstellung von Bleimolybdatpigmenten, enthaltend Blei­chromat, Bleisulfat und Bleimolybdat, dadurch gekennzeichnet, dass die Bleimolybdatpigmente durch Reaktion einer wässrigen Lösung eines Blei­salzes mit einer wässrigen Lösung enthaltend Chromat-, Molybdat- und Sulfatsalze oder mit einer entsprechenden wässrigen Lösung jedes dieser Salze unter Verwendung von 2 bis 5 Mol-% Bleimolybdatimpfkristallen, bezogen auf die Gesamt-Molmenge Bleichromat, -sulfat und -molybdat, hergestellt werden. Die so erhaltenen Bleimolybdatpigmente sind farb­stark und eignen sich ausgezeichnet zum Färben von hochmolekularem organischem Material.

    摘要翻译: 用于制造钼酸铅的颜料含铬酸铅,硫酸铅和钼酸铅,DASS的钼酸铅的颜料过程中通过使在wässrige溶液到wässrige铅盐的溶液含铬酸盐,钼酸盐和硫酸盐或与相应的wässrige制备 各自使用的盐从2至5摩尔%的钼酸铅晶种合成的溶液,基于铬酸铅的总摩尔量,和钼酸硫酸盐。 所得钼酸铅的颜料是高色强度和非常适合于着色的高分子有机材料。 ... ...