- 专利标题: USE OF RADIOFREQUENCY WAVE ABSORBING MARKETS FOR THE AUTHENTICATION OF SECURITY DOCUMENTS
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申请号: US15405036申请日: 2017-01-12
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公开(公告)号: US20170122881A1公开(公告)日: 2017-05-04
- 发明人: Vicente Garcia JUEZ , Jose Francisco Fernandez LOZANO , Javier Gamo ARANDA , Miguel Angel Rodriguez BARBERO , Juan Jose Romero FANEGO
- 申请人: Fabrica Nacional De Moneda Y Timbre - Real Casa De La Moneda , Consejo Superior De lnvestigaciones Cientificas, C.S.l.C.
- 优先权: EP11382093.0 20110401
- 主分类号: G01N22/00
- IPC分类号: G01N22/00 ; B42D25/333 ; B42D25/355 ; B42D25/328 ; G06K19/14 ; B42D25/23 ; G07D7/10 ; B41M3/14 ; C09D5/32 ; B42D25/29 ; B42D25/378
摘要:
The present invention relates to the use of non-deactivatable security compositions comprising the combination of at least two types of particles of oxide materials, where said particles have a different size and/or morphology, and where the inorganic oxide materials have at least one transition metal or one lanthanide element, and radiofrequency wave absorption properties. The invention also relates to security articles, documents or elements incorporating these compositions, as well as to a method and to a system for detection thereof.