发明名称 IDENTIFIKATIONSKARTE UND VERFAHREN ZU IHRER HERSTELLUNG
摘要 Identity card comprising top and bottom outer transparent thermoplastic cover layers laminated to a thermoplastic core comprising a pair of core layers having interposed therebetween a reinforcing support layer which is dimensionally stable under the temperature and pressure conditions utilized to laminate the layers to each other; the cover layers and core layers being formed of thermoplastic polymeric material such as polyvinyl chloride; the support layer being permeable to the thermoplastic material of the surrounding core layers such that the core layers are firmly bonded to each other through the support layer when the layers are laminated to each other; the card carrying at suitable points on at least one layer information serving to identify the cardholder and further carrying security markings, such as guilloche figures, for protection against forgeries.
申请公布号 DE2856833(A1) 申请公布日期 1980.07.17
申请号 DE19782856833 申请日期 1978.12.30
申请人 HOECHST AG 发明人 MORAW,ROLAND,DIPL.-PHYS.DR.;SCHAEDLICH,RENATE
分类号 B32B3/24;B32B27/00;B42D25/00 主分类号 B32B3/24
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