Coextruded Foil Composite Material and Its Use in Card Bodies
First Claim
1. A method for manufacturing a foil composite material in the form of 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:
- merging all the plastic materials in a molten state, and extruding them through an extruder nozzle that extrudes a foil, to thereby obtain an extruded foil composite material, in which an inner plastic layer is covered on both sides by a first and a second outer plastic layer,wherein the composition of at least one first outer layer plastic material is a polyethylene terephthalate glycol copolymer (PETG) or contains a PETG,the at least one second outer layer plastic material has a composition comprising a thermoplastic copolyester elastomer (TPC) or contains a TPC,the at least one inner layer plastic material has a composition comprising a PETG or contains a PETG.
2 Assignments
0 Petitions
Accused Products
Abstract
A composite film material usable in a data carrier card body includes a first outer plastic layer, an inner plastic layer and a second outer plastic layer, all the layers together forming a coextruded composite. The plastic material of the first outer layer is a polyethylene terephthalate glycol copolymer (PETG) or contains a PETG, the plastic material of the inner layer is a thermoplastic elastomer (TPC) or contains a TPC, and the plastic material of the second outer layer is a PETG or contains a PETG.
19 Citations
7 Claims
-
1. A method for manufacturing a foil composite material in the form of 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:
-
merging all the plastic materials in a molten state, and extruding them through an extruder nozzle that extrudes a foil, to thereby obtain an extruded foil composite material, in which an inner plastic layer is covered on both sides by a first and a second outer plastic layer, wherein the composition of at least one first outer layer plastic material is a polyethylene terephthalate glycol copolymer (PETG) or contains a PETG, the at least one second outer layer plastic material has a composition comprising a thermoplastic copolyester elastomer (TPC) or contains a TPC, the at least one inner layer plastic material has a composition comprising a PETG or contains a PETG. - View Dependent Claims (2, 3, 7)
-
-
4. A method for manufacturing a card body having a plurality of plastic layers, comprising:
-
a card core made of at least one core layer, at least two cover layers for covering both surfaces of the card core, and wherein the plastic layers are laminated to each other in one work operation or in several work operations, wherein there is used as at least one of the cover layers and/or as at least one intermediate layer the foil composite material. - View Dependent Claims (5, 6)
-
Specification