发明名称 |
Highly Flexible Foil Composite Material and Its Use in Card Bodies |
摘要 |
A foil composite material usable as a layer in a card body of a portable data carrier, that includes one outer plastic layer, one inner plastic layer and one second outer plastic layer. All the layers jointly form a coextruded composite, and the plastic of one outer layer is a thermoplastic polymer or a mixture thereof. The plastic of the one inner layer is a mixture of at least one thermoplastic elastomer and at least one thermoplastic polymer. The plastic of the second outer layer is a thermoplastic polymer or a mixture thereof. |
申请公布号 |
US2014151923(A1) |
申请公布日期 |
2014.06.05 |
申请号 |
US201414172551 |
申请日期 |
2014.02.04 |
申请人 |
GIESECKE & DEVRIENT GMBH |
发明人 |
RIEDL Josef;BRAUN Andreas |
分类号 |
B29D7/01 |
主分类号 |
B29D7/01 |
代理机构 |
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代理人 |
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主权项 |
1. A method for manufacturing a foil composite material comprising a coextrusion of at least one first outer layer plastic material, at least one second outer layer plastic material, and at least one inner layer plastic material, comprising the steps:
all the plastic materials are extruded and merged so as to form a foil composite material having an inner plastic layer covered on both sides by a first and a second outer plastic layer, the at least one first outer layer plastic material comprises a thermoplastic polymer or a mixture of thermoplastic polymers, the at least one second outer layer plastic material comprises a thermoplastic polymer or a mixture of thermoplastic polymers, and the at least one inner layer plastic material comprises a mixture of at least one thermoplastic elastomer and at least one thermoplastic polymer.
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地址 |
Munich DE |