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US 4,788,102 AGranted
Data-carrying card, method for producing such a card, and device for carrying out said method
AssigneePapier-Plastic-Coating Groningen B.V.
InventorsAnthony A. Koning, Wim Dijkhuizen
Life of this patent
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Abstract
Data-carrying card comprising multiple layers which have been connected to each other with use of an adhesive and excluding the application of heat and pressure. In particular the invention relates to a card as described which incorporates an integrated electronic circuit. The invention also relates to a method for producing a card as described and to a device for carrying out said method.
Claims9
A data-carrying card comprising:
- at least three layers comprising a first outer cover layer, a second inner layer, and a third outer cover layer, said at least three layers being laminated to each other, said second layer including an integrated circuit;
- and
- adhesive means, coating at least one of each pair of adjacent surfaces of said layers, for bonding said pairs of adjacent surfaces at ambient temperature without high pressure to form the lamination.
A method for producing a data-carrying card, comprising the steps of:
- registering a first outer cover layer, a second inner circuit layer, and a third outer cover layer, at least one of said layers having a non-uniform thickness, said second layer comprising an integrated circuit and an outlet protruding from a surface of said second layer, and said third layer being adjacent to said outlet and defining an aperture registered with said outlet to receive said outlet;
- applying a coat of adhesive which cures at ambient temperature without high pressure to at least one of each pair of adjacent surfaces of said layers, the application of adhesive to said non-uniformly thick layer being complementally non-uniform in thickness such that the resultant thickness of said card is uniform;
- uniting the coated layers together into a laminate;
- and
- curing said adhesive at or less than ambient temperature without high pressure.
2 more elements
Dependencies are inferred from the claim text.