公开(公告)号：EP1232226B1

公开(公告)日：2006-06-21

申请号：EP01976022.2

申请日：2001-09-07

申请人： Nanosolutions GmbH

发明人： HAUBOLD, Stephan ,  HAASE, Markus ,  RIWOTZKY, Carsten ,  WELLER, Horst ,  MEYSAMMY, Heike ,  IBARRA, Fernando

IPC分类号： C09K11/08 ,  G01N21/91 ,  G01N21/76 ,  G07D7/00 ,  C09D11/00 ,  A61B5/117

CPC分类号： G01N21/643 ,  C09D11/50 ,  C09K11/08 ,  C09K11/574 ,  C09K11/595 ,  C09K11/621 ,  C09K11/666 ,  C09K11/684 ,  C09K11/7727 ,  C09K11/7736 ,  C09K11/7738 ,  C09K11/7741 ,  C09K11/7755 ,  C09K11/7766 ,  C09K11/7769 ,  C09K11/7774 ,  C09K11/7776 ,  C09K11/7777 ,  C09K11/7792 ,  C09K11/7794 ,  C09K11/7797 ,  C09K11/7798 ,  G01N2021/6439

摘要： The invention relates to a method for producing fluorescent inorganic nanoparticles, whereby the nanoparticles are comprised of a host material containing at least one dopant. The inventive synthesis involving the use of organic solvents results in a significantly better yield than that achieved in prior art water synthesis. Articles of all types can be advantageously marked and, by using automated methods, can be reliably authenticated based on a characteristic emission. In addition, the size distribution of the produced nanoparticles is tighter thus rendering a subsequent separation according to size unnecessary.

公开(公告)号：EP1458836A1

公开(公告)日：2004-09-22

申请号：EP02804851.0

申请日：2002-12-16

申请人： Nanosolutions GmbH

发明人： HAUBOLD, Stephan ,  IBARRA, Fernando

IPC分类号： C09K11/08 ,  B41J2/00 ,  C09D11/00 ,  B41M3/14

CPC分类号： B42D25/373 ,  B41J2/01 ,  B41M3/14 ,  B41M3/144 ,  B42D2035/34 ,  C09D11/30

摘要： The invention relates to a printing method according to which, during the printing process, one or more narrow nozzles eject a printing liquid, and to a printing liquid suitable for such a method. The invention is particularly suitable for forgery-proof printing on papers or articles. According to the invention, the printing liquid contains nanoparticles that can be induced to fluoresce or phosphoresce. Said nanoparticles are small crystalline particles that can be induced to fluoresce or phosphoresce on their own or when mixed with dopants. Individual dots (10, 12) can be printed by means of a printing liquid that contains said nanoparticles. Due to their small size of from 1 to 1000 nanometers, preferably in the range of 300 nanometers or even much smaller depending on nozzle diameter, there is no risk of very narrow ink jet nozzles getting plugged. The induction and fluorescence emission frequency ranges are narrow-band so that for a security control of the print the respective wavelength-specific induction or detection is required, thereby increasing protection against forgery.

摘要翻译： 本发明涉及一种打印方法，其中在打印过程中，一个或多个窄喷嘴喷射印刷液体，以及喷射适用于这种方法的印刷液体。 本发明特别适用于纸张或物品上的防伪印刷。 根据本发明，印刷液体含有可被诱导发荧光或磷光的纳米颗粒。 所述纳米颗粒是可以在其自身或与掺杂剂混合时诱导荧光或磷酸化的小结晶颗粒。 可以通过包含所述纳米颗粒的印刷液体印刷单个点（10,12）。 由于其尺寸为1至1000纳米，优选在300纳米的范围内，甚至根据喷嘴直径要求更小，所以不会有非常窄的喷墨嘴堵塞的风险。 感应和荧光发射频率范围是窄带的，因此为了对印刷品进行安全控制，需要相应的波长特异性感应或检测，从而增加防伪的保护。

公开(公告)号：EP1562860A2

公开(公告)日：2005-08-17

申请号：EP03779709.9

申请日：2003-11-19

申请人： Nanosolutions GmbH

发明人： IBARRA, Fernando ,  MEYER, Christiane ,  HAUBOLD, Stephan ,  HEIDELBERG, Thorsten

IPC分类号： C01F11/46 ,  C01F5/40 ,  C09C1/02

CPC分类号： C09C1/02 ,  A61K49/0404 ,  A61K49/0423 ,  B82Y5/00 ,  B82Y30/00 ,  C01F5/40 ,  C01F11/46 ,  C01F11/462 ,  C01P2002/52 ,  C01P2002/84 ,  C01P2004/64 ,  C01P2006/22 ,  Y10S977/773 ,  Y10S977/775

摘要： The invention relates to synthesis of nanoparticles, in particular to methods for producing nanoparticles with a networks consisting of Z sulphate (Z = magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) or the binary mixtures thereof). The inventive method consists in synthesising the nanoparticles by crystal growth from an ion Z source and a sulphate ion source in a synthesis liquid phase mixture. The aim of said invention is to produce in a simple way barium sulphate nanoparticles having a small diameter, said particles being uniformly dispersed in water or other solvents. For this purpose, co-ordinating solvents like glycerine, glycol ethylene and other polyethylene glycols, polyalcohols or dimethylsulphoxide (DMSO) are used for the synthesis mixture. In the preferred embodiment, barium is used in the form of chloride and the sulphate source in the form of tetrabutylammonium hydrogen sulphate. Other metallic dopants can be eventually integrated in the nanoparticles network. When the synthesis is also used in the form of chloride.

公开(公告)号：EP1648392A1

公开(公告)日：2006-04-26

申请号：EP04741315.8

申请日：2004-07-29

申请人： Nanosolutions GmbH

发明人： IBARRA, Fernando

IPC分类号： A61K6/083

CPC分类号： A61K6/083 ,  A61K6/09 ,  C08L33/00 ,  C08L75/16

摘要： The invention relates to a dental material, which contains surface-modified nanoparticles with an average particle size of less than 25 nm in the form of a filler, said nanoparticles being selected from the salts of barium, strontium, rare-earth metals, scandium or yttrium, or from wolframates. The surface of said nanoparticles is modified by an organic compound that bonds with the nanoparticles by means of a functional group containing N, P, S and/or O. Said dental material exhibits an excellent X-ray opacity, in addition to important processing characteristics such as transparency or dispersion stability.

公开(公告)号：EP1232226A1

公开(公告)日：2002-08-21

申请号：EP01976022.2

申请日：2001-09-07

申请人： Nanosolutions GmbH

发明人： HAUBOLD, Stephan ,  HAASE, Markus ,  RIWOTZKY, Carsten ,  WELLER, Horst ,  MEYSAMY, Heike ,  IBARRA, Fernando

IPC分类号： C09K11/08 ,  G01N21/91 ,  G01N21/76 ,  G07D7/00 ,  C09D11/00 ,  A61B5/117

CPC分类号： G01N21/643 ,  C09D11/50 ,  C09K11/08 ,  C09K11/574 ,  C09K11/595 ,  C09K11/621 ,  C09K11/666 ,  C09K11/684 ,  C09K11/7727 ,  C09K11/7736 ,  C09K11/7738 ,  C09K11/7741 ,  C09K11/7755 ,  C09K11/7766 ,  C09K11/7769 ,  C09K11/7774 ,  C09K11/7776 ,  C09K11/7777 ,  C09K11/7792 ,  C09K11/7794 ,  C09K11/7797 ,  C09K11/7798 ,  G01N2021/6439

摘要： The invention relates to a method for producing fluorescent inorganic nanoparticles, whereby the nanoparticles are comprised of a host material containing at least one dopant. The inventive synthesis involving the use of organic solvents results in a significantly better yield than that achieved in prior art water synthesis. Articles of all types can be advantageously marked and, by using automated methods, can be reliably authenticated based on a characteristic emission. In addition, the size distribution of the produced nanoparticles is tighter thus rendering a subsequent separation according to size unnecessary.