Laminated identity card having separation-resistant laminae and method of manufacturing same
First Claim
1. An identity card comprising at least one outer transparent thermoplastic cover layer formed of thermoplastic polymeric material laminated to a thermoplastic polymeric material core;
- said card carrying at suitable points information serving to identity the cardholder and security markings for protecting against forgeries;
said core further comprising a perforated reinforcing support layer which is dimensionally stable under the conditions used to laminate the thermoplastic polymeric material and permeable to the thermoplastic polymer of the core, wherein marginal areas of the support layer are more heavily perforated than a central area of the support layer.
1 Assignment
0 Petitions
Accused Products
Abstract
Identity card comprising top and bottom outer transparent thermoplastic cover layers laminated to a thermoplastic core comprising a pair of core layers having interposed therebetween a reinforcing support layer which is dimensionally stable under the temperature and pressure conditions utilized to laminate the layers to each other; the cover layers and core layers being formed of thermoplastic polymeric material such as polyvinyl chloride; the support layer being permeable to the thermoplastic material of the surrounding core layers such that the core layers are firmly bonded to each other through the support layer when the layers are laminated to each other; the card carrying at suitable points on at least one layer information serving to identify the cardholder and further carrying security markings, such as guilloche figures, for protection against forgeries.
-
Citations
13 Claims
-
1. An identity card comprising at least one outer transparent thermoplastic cover layer formed of thermoplastic polymeric material laminated to a thermoplastic polymeric material core;
- said card carrying at suitable points information serving to identity the cardholder and security markings for protecting against forgeries;
said core further comprising a perforated reinforcing support layer which is dimensionally stable under the conditions used to laminate the thermoplastic polymeric material and permeable to the thermoplastic polymer of the core, wherein marginal areas of the support layer are more heavily perforated than a central area of the support layer. - View Dependent Claims (2, 7, 8, 9, 10, 11)
- said card carrying at suitable points information serving to identity the cardholder and security markings for protecting against forgeries;
-
3. An identity card comprising at least one outer transparent thermoplastic cover layer formed of thermoplastic polymeric material laminated to a thermoplastic polymeric material core;
- said card carrying at suitable points information serving to identify the cardholder and security markings for protecting against forgeries;
said core further comprising a reinforcing support layer which is dimensionally stable under the conditions used to laminate the thermoplastic polymeric materials and permeable to the thermoplastic polymer of the core, said support layer being provided with holes having varying diameters ranging from about 0.5 to about 2 mm, and the average distance between the centers of adjacent holes being equal to three times the mean value of the radii of the holes. - View Dependent Claims (4, 5, 6)
- said card carrying at suitable points information serving to identify the cardholder and security markings for protecting against forgeries;
-
12. An identity card comprising at least one outer transparent cover layer formed of thermoplastic polymeric material laminated to a thermoplastic polymeric material core;
- said card carrying at suitable points information serving to identify the cardholder and security markings for protecting against forgeries;
said core comprising two thermoplastic core layers laminated to each other with a reinforcing support layer interposed therebetween, said support layer being dimensionally stable under the conditions used to laminate the thermoplastic polymeric materials and permeable to the thermoplastic polymer material of the core layers, the thermoplastic polymer material of said core layers permeating said support layer and producing a firm bond therethrough between the respective core layers. - View Dependent Claims (13)
- said card carrying at suitable points information serving to identify the cardholder and security markings for protecting against forgeries;
Specification