Document laminate formed from different polyester materials

• US 20050084693A1
• Filed: 10/21/2003
• Published: 04/21/2005
• Est. Priority Date: 10/21/2003
• Status: Active Grant

• Current Assignee: L-1 Secure Credentialing, LLC (Advent International Corporation)
• Original Assignee: L-1 Secure Credentialing, LLC (Advent International Corporation)
• Inventors: LaBrec, Brian
• Granted Patent: US 7,422,794 B2
• Time in Patent Office: Days
• US Class Current: 428/480
• CPC Class Codes: B32B 2037/0092 in which absence of adhesives is explicitly presented as an advantage
• CPC Class Codes: B32B 2310/0831 using UV radiation
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2425/00 Cards, e.g. identity cards, credit cards
• CPC Class Codes: B32B 2429/00 Carriers for sound or information
• CPC Class Codes: B32B 2519/02 RFID tags
• CPC Class Codes: B32B 2554/00 Paper of special types, e.g. banknotes
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: B32B 37/04 characterised by the partial melting of at least one layer
• CPC Class Codes: B32B 37/153 at least one layer is extruded and immediately laminated while in semi-molten state
• CPC Class Codes: B32B 38/004 by physically contacting the layers, e.g. by the use of heated platens or rollers
• CPC Class Codes: B32B 38/145 Printing
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: B42D 2033/30 Plastic material
• CPC Class Codes: B42D 25/23 Identity cards
• CPC Class Codes: B42D 25/309 Photographs
• CPC Class Codes: B42D 25/313 Fingerprints
• CPC Class Codes: B42D 25/45 Associating two or more layers
• CPC Class Codes: B42D 25/455 using heat
• CPC Class Codes: B42D 25/46 : using pressure
• CPC Class Codes: Y10T 428/24802 : Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
• CPC Class Codes: Y10T 428/31786 : Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31797 : Next to addition polymer from unsaturated monomers

Abstract

A polyester laminate for an identification document is formed from different polyester materials. One of the polyester materials, such as PCTA, provides a durability property. Another of the polyester materials, such as PETG, provides a layer having a surface with a bonding property for bonding directly to a core without adhesive. The polyester material with the bonding property is selected to enable direct bonding to a printed core layer of TESLIN or polyester through a roll to roll or platen press process.

Claims

1. A laminate for a document comprising:

a polyester laminate formed from different polyester materials, one of the polyester materials providing a durability property, and another of the polyester materials providing a layer having a surface with bonding property for bonding directly to a core without adhesive.

2. The laminate of claim 1 wherein the durability property includes a chemical or mechanical resistance property.

3. The laminate of claim 1 wherein the bonding property comprises a property for facilitating bonding directly to TESLIN.

4. The laminate of claim 1 wherein the material providing the durability property comprises PCTA.

5. The laminate of claim 4 wherein the material providing the durability property comprises A150 PCTA material.

6. The laminate of claim 1 wherein the material providing the surface with the bonding property comprises PETG.

7. The laminate of claim 6 wherein the PETG comprises PETG 5011.

8. The laminate of claim 6 wherein the PETG comprises PETG 6763.

9. The laminate of claim 1 wherein material providing the durability property comprises PCTA and the material providing the surface with the bonding property comprises PETG.

10. The laminate of claim 1 wherein the bonding property comprises a property for facilitating bonding directly to a polyester core to enable formation of a polyester document structure without a discemable interface between the polyester laminate and polyester core.

11. A laminate for a document comprising:

a polyester composite material formed from different polyester materials, one of the materials providing an outer surface comprising PCTA, and another of the materials providing an inner surface comprising PETG.

12. The laminate of claim 11 wherein the PCTA forms a durable outer layer on the PETG.

13. The laminate of claim 11 wherein the PETG forms a bonding layer for bonding directly to a document core without adhesive.

14. The laminate of claim 13 wherein the PCTA forms a durable outer layer on the PETG, and the PETG forms a bonding layer for bonding directly to a document core without adhesive.

15. The laminate of claim 13 wherein the PETG is operable to be bonded directly to a core using a roll to roll or platen press process.

16. The laminate of claim 15 wherein the core is TESLIN or polyester.

17. A method of making a laminate comprising:

melting a first polyester material in a first melt stream;

melting a second polyester material different from the first in a second melt stream;

joining the first and second melt streams; and

cooling the joined streams to form a polyester laminate in which the first polymer material provides a chemical or mechanical resistance property and the second polymer provides a bonding property for bonding directly to a core.

18. The method of claim 17 wherein the first polyester comprises PCTA.

19. The method of claim 17 wherein the second polyester comprises PETG.

20. A method of making a laminate comprising:

providing a first polyester material comprising PCTA;

providing a second polyester material comprising PETG;

joining the first and second polyester materials to form a polyester laminate including PCTA and PETG.

21. The method of claim 20 wherein the joining comprises a roll to roll process.

22. The method of claim 20 wherein the joining comprises an extrusion coating process.

23. The method of claim 20 wherein the joining comprises a coextrusion process.

24. The method of claim 20 wherein the joining comprises a platen press process.

25. The method of claim 20 wherein the joining comprises an injection molding process.

26. The method of claim 20 wherein the joining comprises an extrusion molding process.

27. A method of making a laminated document comprising:

providing a first polyester material comprising PCTA;

providing a second polyester material comprising PETG;

joining the first and second polyester materials to form a polyester laminate including PCTA and PETG;

printing information on a core layer; and

joining the polyester laminate to the core layer directly using the PETG to bond the laminate to the core.

28. The method of claim 27 wherein the joining of the laminate to the core layer comprises a roll to roll process.

29. The method of claim 27 wherein the joining of the laminate to the core layer comprises a platen press process.

30. An laminated document comprising:

a laminate including a first polyester material comprising PCTA and a second polyester material comprising PETG;

a core layer bonded directly to the laminate using a bonding property of the PETG.

31. The document of claim 30 wherein the core layer comprises TESLIN.

32. The document of claim 30 wherein the core layer comprises polyester, such that when the laminate is bonded directly to the laminate, there is no discemable interface between the laminate and the core.