发明名称 |
Coating composition, use of particles, method for tagging and identifying a security document comprising said coating composition |
摘要 |
<p>The present invention relates to inorganic particles comprising at least two chemical elements in a predefined and analytically identifiable ratio. These particles are used as a marking means incorporated into or applied onto any desired article. They provide a high security potential against counterfeiting since the analysis depend on a combination of spatial as well as of chemical information. In a first step the information containing particle has to be localized by scanning electron microscopy and in a second step the ratio of elements is analysed using energy - or wavelength-dispersive X-ray analysis (SEM/EDX).</p> |
申请公布号 |
EP0927749(B1) |
申请公布日期 |
2003.02.26 |
申请号 |
EP19970811029 |
申请日期 |
1997.12.29 |
申请人 |
SICPA HOLDING S.A. |
发明人 |
BLEIKOLM, ANTON;MUELLER, EDGAR;ROZUMEK, OLIVIER |
分类号 |
B42D15/10;B41M3/14;B42D15/00;C09C1/00;C09D7/12;C09D11/00;C09D201/00;D21H21/40;G06K1/12;G06K7/00;G06K19/06;(IPC1-7):C09D11/00 |
主分类号 |
B42D15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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