专利名称：SECURITY ELEMENT COMPRISING A
MAGNETIC FLUID
发明人：BORNSCHLEGL, ALEXANDER,MENGEL,
CHRISTOPH
申请号：EP10724294.3申请日：20100528公开号：EP2437945A1公开日：20120411
摘要：The invention relates to a security element (30) that provides a visual impressionwhich can be modified using an external magnetic field. The security element (30) containsa plurality of core-shell particles (40). According to the invention, the core of the core-shell particles (40) contains a magnetic fluid (44) and a non-magnetic phase (46) which ismovably arranged within the magnetic fluid (44) and can be visually distinguished fromthe magnetic fluid (44).
申请人：GIESECKE & DEVRIENT GMBH
地址：Prinzregentenstrasse 159 81677 München DE
国籍：DE
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