Plastic layer for a smart card

Abstract

A plastic sheet for manufacturing of a plurality of smart cards which respectively include a plurality of electronic units, includes a first sheet formed of a first material having a first hardness or a first Vicat softening temperature, the first sheet including a plurality of apertures and/or cavities. The plastic sheet includes a second material having, when the first material has the first hardness, a second hardness lower than the first hardness, and when the first material has the first Vicat softening temperature, a second Vicat softening temperature lower than the first Vicat softening temperature, the second material being located inside the apertures and/or cavities in the first sheet. The apertures and/or cavities with the second material located inside the apertures and/or cavities are configured to respectively receive said electronic units via an at least partial penetration from the electronic units into the second material.

1 . A plastic sheet for manufacturing of a plurality of smart cards which respectively include a plurality of electronic units, comprising:
 a first sheet formed of a first material having a first hardness or a first Vicat softening temperature, the first sheet including a plurality of apertures and/or cavities; and   a second material having, when the first material has the first hardness, a second hardness lower than the first hardness, and when the first material has the first Vicat softening temperature, a second Vicat softening temperature lower than the first Vicat softening temperature, the second material being located inside the plurality of apertures and/or cavities in the first sheet, wherein   the plurality of apertures and/or cavities with the second material located inside the plurality of apertures and/or cavities are configured to respectively receive said plurality of electronic units via an at least partial penetration from the plurality of electronic units into the second material.   
     
     
         2 . The plastic sheet according to  claim 1 , wherein said second Vicat softening temperature under a load of 10 N is lower than fifty degrees. 
     
     
         3 . The plastic sheet according to  claim 1 , wherein said second hardness is less than 96 Shore A. 
     
     
         4 . The plastic sheet according  claim 1 , wherein said first Vicat softening temperature under a load of 10 N is lower than sixty-five degrees. 
     
     
         5 . The plastic sheet according to  claim 1 , wherein said first hardness is more than 60 Shore D. 
     
     
         6 . The plastic sheet according to  claim 1 , wherein said second material is formed by a thermoplastic polyurethane elastomer. 
     
     
         7 . The plastic sheet according to  claim 1 , wherein said first material forms the first sheet having the plurality of apertures at least partially filled by said second material. 
     
     
         8 . The plastic sheet according to  claim 1 , wherein said first material forms the first sheet having the plurality of cavities at least partially filled by said second material. 
     
     
         9 . The plastic sheet according to  claim 1 , wherein the second material that is located inside the plurality of apertures and/or cavities is substantially flush with a face of the plastic sheet in which the plurality of apertures and/or cavities are formed.