# US 2018/0322378 A1 · Process for manufacturing a non-opaque layer for a multilayer structure comprising a window, and a multilayer with such a non-opaque layer

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- Number: US 2018/0322378 A1
- Document ID: US20180322378A1
- Status: Published application
- Kind: A1
- Application number: 15/775,866
- Filed: 2015-11-13
- Published: 2018-11-08
- Earliest claimed: 2015-11-13
- Applicants: Linxens Holding; Hid Global Cid SAS
- Inventors: Jessy Khairallah; Kreangsak Saeingthong; Alice Vermeulin; Anthony Rouch-Paulin
- Web page: https://patentgrep.com/patent/US20180322378A1

## CPC

- G06K 19/07773: {Antenna details (antennas for wireless devices, e.g. RFID tags, in general H01Q1/22)}
- B32B 3/085: {spaced apart pieces on the surface of a layer}
- B32B 3/263: {characterised by a layer having non-uniform thickness}
- B32B 3/266: {characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12}
- B32B 27/08: of synthetic resin
- B32B 27/304: {comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 27/36: comprising polyesters
- B32B 27/365: {comprising polycarbonates}
- B42D 25/305: Associated digital information (record carriers for use with machines and with at least a part designed to carry digital markings G06K19/00)
- B42D 25/355: Security threads
- B42D 25/373: Metallic materials
- G06K 19/07722: {the record carrier being multilayered, e.g. laminated sheets (flat articles in general, see B32B37/00)}
- B32B 2307/412: Transparent
- B32B 2425/00: Cards, e.g. identity cards, credit cards
- B32B 2554/00: Paper of special types, e.g. banknotes
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B42D: BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS

## Abstract

A process includes providing a first layer, which is made of a non-opaque plastic material having an initial thickness, covering an area of the first layer with a patterned plate, pressing the patterned plate against a first surface of the first layer so as to form first and second regions thereon, with the second region being thicker than the first region, and removing the patterned plate from the first surface. The patterned plate comprises a cavity having a size of that corresponds to a window

## Claims

### Claim at position 1

1-27. (canceled)

### Claim 28

A process comprising covering an area of a first layer with a patterned plate, pressing said patterned plate against a first surface of said first layer so as to form a first region and a second region in said first layer, and removing said patterned plate from said first surface, wherein said first layer is made of a non-opaque plastic material having an initial thickness, wherein said patterned plate forms a cavity having a size of that corresponds to a window, and wherein said second region is thicker than said first region by an extra thickness.

### Claim 29 (depends on 28)

The method of claim 28, wherein said cavity is formed at least in part by an opening through a thickness of said patterned plate.

### Claim 30 (depends on 28)

The method of claim 28, further comprising covering said opening with a covering plate when pressing said patterned plate against said first surface and removing both said patterned plate and said covering plate once said second region has been formed, wherein, as a result of having provided said covering plate, said patterned plate is arranged between said covering plate and said first layer.

### Claim 31 (depends on 28)

The method of claim 28, wherein said cavity is a hollow in said patterned plate.

### Claim 32 (depends on 28)

The method of claim 28, wherein said first layer comprises thermoplastic selected from the group consisting of polycarbonate, poly(vinyl-chloride), polyethylene terephthalate, polyethylene terephthalate glycol modified, polyethylene terephthalate film, polylactic acid, polyethylene and polyestercarbonate.

### Claim 33 (depends on 28)

The method of claim 28, further comprising executing a hot-pressing cycle.

### Claim 34 (depends on 28)

The method of claim 28, further comprising executing a hot-pressing cycle of said first layer and said patterned plate with a temperature in a range from 120° C. to 195° C., at a pressure in a range from 17 to 110 newtons per square centimeter, and for a duration of between 15 minutes and 45 minutes.

### Claim 35 (depends on 28)

The method of claim 28, further comprising executing a cool-pressing cycle after having executed a hot-pressing cycle.

### Claim 36 (depends on 28)

The method of claim 28, further comprising executing a cool-pressing cycle after having executed a hot-pressing cycle, wherein said cool-pressing cycle is executed at a temperature in a range from 15° C. to 25° C., a pressure in a range from 50 to 220 newtons per square centimeter, and for a duration of between 13 and 45 minutes.

### Claim 37 (depends on 28)

The method of claim 28, wherein providing said first layer comprises providing a first layer that comprises a material selected from the group consisting of a thermoplastic polymer and a thermally reticulated polymer, wherein said material has a glass-transition temperature between 50° C. and 190° C.

### Claim 38 (depends on 28)

The method of claim 28, further comprising providing a second layer, laying said second layer over at least a part of said first region, and laminating said first layer and said second layer to form a multilayer structure, wherein said second layer is a compensation layer having a window cut-out that passes through an entire thickness thereof, and wherein said window coincides with said second region.

### Claim 39 (depends on 38)

The method of claim 38, further comprising cutting out at least a portion of a security document from said multilayer structure.

### Claim 40 (depends on 28)

The method of claim 28, further comprising laminating two layers of non-opaque plastic material to form said first layer.

### Claim 41 (depends on 28)

The method of claim 28, further comprising inserting an element between two layers of non-opaque plastic material and laminating said two layers to form said first layer, wherein said element is selected from the group consisting of an antenna and a chip, and wherein said chip is configured for contactless communication.

### Claim 42 (depends on 28)

The method of claim 28, wherein providing a first layer comprises injecting around an element selected from the group consisting of an antenna and a chip, wherein said chip is a chip for contactless communication.

### Claim 43

A manufacture comprising a first layer, wherein said first layer comprises non-opaque plastic material, wherein said first layer comprises a first region and a second region, wherein said second region is integrally formed with said first region, wherein said second region has a thickness that exceeds a thickness of said first region by an extra thickness, wherein said second region forms a single and homogeneous layer over said thickness thereof.

### Claim 44 (depends on 43)

The manufacture of claim 43, further comprising an element selected from the group consisting of an antenna and a chip, wherein said chip is configured for contactless communication, and wherein said element is inserted into said first layer.

### Claim 45 (depends on 43)

The manufacture of claim 43, wherein said first layer comprises thermoplastic.

### Claim 46 (depends on 43)

The manufacture of claim 43, wherein said first layer is a constituent of a multilayer structure that further comprises a second layer, wherein said second layer is a compensation layer for compensating for said extra thickness, wherein said second layer comprises a window cut through an entire thickness thereof, wherein said second layer is disposed over at least part of said first region, and wherein said second region and said window are coincident.

### Claim 47 (depends on 46)

The manufacture of claim 46, wherein said multilayer structure further comprises a third layer, wherein said third layer is a finishing layer that overlaps at least a part of said second layer and said second region.

### Claim 48 (depends on 46)

The manufacture of claim 46, wherein said multilayer structure comprises a third layer, wherein said third layer is a compensation layer, wherein said second and third layers are on either side of said first layer, wherein said third layer comprises a window that has been cut through an entire thickness of said third layer, and wherein said window is coincident with said second region.

### Claim 49 (depends on 46)

The manufacture of claim 46, wherein said multilayer structure comprises an element selected from the group consisting of a chip for contactless communication, a chip for contact communication, a chip for a dual interface, and and an antenna.

### Claim 50 (depends on 49)

The manufacture of claim 49, wherein said element is at least partly embedded in said first layer.

### Claim 51 (depends on 46)

The manufacture of claim 46, further comprising a security article, wherein said security article comprises said multilayer structure, wherein said security article is selected from the group consisting a passport, a page of a passport, an identification card, a driver's license, a transportation card, an access card, a coin, a casino coin, a casino plaquette, a credit card, a payment card, a banknote, a voucher, and a secured label.

### Claim 52 (depends on 51)

The manufacture of claim 51, further comprising a security element embedded in or applied to said first layer.

### Claim 53 (depends on 43)

The manufacture of claim 43, further comprising a security element, wherein said first layer is a constituent of a multilayer structure that further comprises a second layer, wherein said security element is one of inserted between said first and second layers and applied on one of said first and second layers.

### Claim 54 (depends on 53)

The manufacture of claim 53, wherein said security element is selected from the group consisting of a security thread, a foil, a patch, a printing, a metallization, and a demetallization.