Laminated stretched and unstretched polyester card for IC card
First Claim
1. A plastic card prepared by laminating unstretched polyester sheets to both sides of a single sheet or a laminate of a plurality of sheets of stretched polyester film, cutting the obtained laminate to a shape of a card, and forming a cavity for embedding a chip module by milling process in the laminate cut to the shape of a card.
1 Assignment
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Accused Products
Abstract
A plastic card prepared by laminating unstretched polyester sheets to both sides of a single sheet or a laminate of a plurality of sheets of a stretched polyester film, cutting the obtained laminate to a shape of a card, and forming a cavity for embedding a chip module by milling in the laminate cut to the shape of a card. The plastic card is excellent in mechanical strength, dimensional stability, heat resistance, and property for printing, contains no hazardous halogen elements, and has a cavity for embedding a chip module which is formed without formation of burr by milling.
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Citations
3 Claims
- 1. A plastic card prepared by laminating unstretched polyester sheets to both sides of a single sheet or a laminate of a plurality of sheets of stretched polyester film, cutting the obtained laminate to a shape of a card, and forming a cavity for embedding a chip module by milling process in the laminate cut to the shape of a card.
Specification
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- Resources
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Current AssigneeNagase & Company Limited, Watada Printing Co. Ltd.
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Original AssigneeNagase & Company Limited, Watada Printing Co. Ltd.
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InventorsWatada, Hisataro
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Primary Examiner(s)Gross, Anita Pellman
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Assistant Examiner(s)Rodriguez, Douglas X.
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Application NumberUS08/753,780Time in Patent Office1,135 DaysField of Search235/488, 235/487, 235/492US Class Current235/488CPC Class CodesG06K 19/041 Constructional details G06K...
