| 发明名称 |
PIGMENTS HAVING A VIEWING ANGLE DEPENDENT SHIFT OF COLOR, METHOD OF MAKING, USE AND COATING COMPOSITION COMPRISING OF SAID PIGMENTS AND DETECTING DEVICE |
| 摘要 |
<p>The invention describes luminescent optically variable pigments (OVP), metho ds for obtaining such pigments, as well as the use of such pigments as security elements in inks, coatings and articles. The luminescence centers are preferably incorporated into the dielectric material of the OVP's optical Fabry-Perot resonance cavity, allowing for the machine-discrimination of luminescent OVP from simple mixtures of luminescents and non-luminescent OVP .</p> |
| 申请公布号 |
CA2399759(A1) |
申请公布日期 |
2001.08.23 |
| 申请号 |
CA20012399759 |
申请日期 |
2001.02.14 |
| 申请人 |
SICPA HOLDING S.A. |
发明人 |
ROZUMEK, OLIVIER;MULLER, EDGAR |
| 分类号 |
B42D15/10;B32B15/04;C09B1/00;C09B67/00;C09C1/00;C09C3/04;C09D5/29;C09D5/36;C09D7/12;C09D11/00;C09D11/02;C09D201/00;G07D7/12;(IPC1-7):C09C1/00;C09K19/00 |
主分类号 |
B42D15/10 |
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