NANOSTRUCTURED PHOSPHORESCENT PIGMENT AND USES THEREOF
    5.
    发明申请
    NANOSTRUCTURED PHOSPHORESCENT PIGMENT AND USES THEREOF 审中-公开
    纳米结构的磷光体颜料及其用途

    公开(公告)号:WO2016202979A1

    公开(公告)日:2016-12-22

    申请号:PCT/EP2016/064004

    申请日:2016-06-17

    CPC classification number: C09K11/7792 B42D25/29 B42D25/378 C09D5/22 C09K11/02

    Abstract: The present invention relates to a nanostructured phosphorescent pigment comprising an Al 2 O 3 substrate; MAl 2 O 4 :X nanocrystals, where M is a cation selected from Ca 2+ , Sr 2+ , Ba 2+ , Mg 2+ , Zn 2+ and combinations thereof and where X is a cation selected from Eu 2+ , Dy 3+ , Nd 3+ , Er 3+ , La 3+ , Lu 3+ , Ce 3+ , Y 3+ , Sm 3+ , Gd 3+ , Tb 3+ , Tm 3+ , Yb 3+ and combinations thereof, disposed on the Al 2 O 3 substrate; and nanocrystals of molten salt disposed on the MAl 2 O 4 :X nanocrystals. Additionally, the invention relates to a method for preparing the nanostructured phosphorescent pigment of the invention comprising the steps of i) mixing starting materials comprising a cation M precursor, a cation X precursor, Al 2 O 3 and a molten salt; ii) heating the mixture resulting from step (i) in reducing atmosphere. The invention also relates to the use of the nanostructured phosphorescent pigment of the invention for signaling, illumination, decoration or authentication and to a security article comprising the nanostructured phosphorescent pigment of the invention.

    Abstract translation: 本发明涉及包含Al2O3底物的纳米结构磷光颜料; MAl 2 O 4:X纳米晶体,其中M是选自Ca2 +,Sr2 +,Ba2 +,Mg2 +,Zn2 +的阳离子及其组合,其中X是选自Eu2 +,Dy3 +,Nd3 +,Er3 +,La3 +,Lu3 +,Ce3 +,Y3 +,Sm3 + Gd3 +,Tb3 +,Tm3 +,Yb3 +及其组合; 和设置在MAl2O4:X纳米晶体上的熔融盐的纳米晶体。 另外,本发明涉及一种制备本发明的纳米结构磷光颜料的方法,包括以下步骤:i)将包含阳离子M前体,阳离子X前体,Al 2 O 3和熔融盐的原料混合; ii)在还原气氛中加热由步骤(i)产生的混合物。 本发明还涉及本发明的纳米结构磷光颜料用于信号,照明,装饰或认证以及包含本发明的纳米结构磷光颜料的安全制品的用途。

    OBJECT COMPRISING A REGION OF ITS SURFACE SUITABLE FOR SHOWING A PLURALITY OF IMAGES
    10.
    发明申请
    OBJECT COMPRISING A REGION OF ITS SURFACE SUITABLE FOR SHOWING A PLURALITY OF IMAGES 审中-公开
    包含其适用于显示大量图像的表面区域的对象

    公开(公告)号:WO2013072449A1

    公开(公告)日:2013-05-23

    申请号:PCT/EP2012/072809

    申请日:2012-11-16

    Abstract: The present invention relates to an object comprising a region of its surface suitable for showing a plurality of images. Each of these images is observable from a different direction such that upon observing one of the images the other images stop being observable and do not interfere in the viewing of the observed image. The configuration which allows generating the region of surfaces suitable for showing the plurality of images allows for mass production by means of stamping or minting techniques and complicates the reproduction by unauthorized manufacturers. A method which allows obtaining the object having a region suitable for showing a plurality of images is also an object of the present invention.

    Abstract translation: 本发明涉及一种包括其表面的适于显示多个图像的区域的物体。 这些图像中的每一个可以从不同的方向观察,使得在观察其中一个图像时,其它图像停止可观察,并且不干扰观察到的图像的观看。 允许产生适于显示多个图像的表面区域的配置允许通过冲压或铸造技术进行批量生产,并使未经授权的制造商的再现变得复杂。 允许获得具有适于显示多个图像的区域的对象的方法也是本发明的目的。

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