# US 2014/0197626 A1 · Multilayer structure incorporating at least one security element > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197626 A1 - Document ID: US20140197626A1 - Status: Published application - Kind: A1 - Application number: 14/212,867 - Filed: 2014-03-14 - Published: 2014-07-17 - Earliest claimed: 2011-09-14 - Assignees: Arjowiggins Security - Applicants: Arjowiggins Security - Inventors: Thibault Le Loarer; Alice Genet; Jean-Yves Leroy - Web page: https://patentgrep.com/patent/US20140197626A1 ## CPC - B42D 25/45: Associating two or more layers - B42D 25/00: Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof (printing processes to produce identification or security features B41M3/14) - B42D 25/29: Securities; Bank notes - B42D 25/328: Diffraction gratings; Holograms - B42D 25/333: Watermarks - B42D 25/342: Moiré effects - B42D 25/346: Perforations - B42D 25/351: Translucent or partly translucent parts, e.g. windows - B42D 25/36: comprising special materials - B42D 25/364: Liquid crystals - B42D 25/369: Magnetised or magnetisable materials - B42D 25/373: Metallic materials - B42D 25/391: absorbing or reflecting polarised light - B42D 25/41: using electromagnetic radiation (B42D25/435 takes precedence) - B44F 1/10: Changing, amusing, or secret pictures - B42D 25/455: using heat - B42D 25/46: using pressure - B42D 25/47: using adhesives - B42D 25/475: Cutting cards - Y10T 428/24331: including nonapertured component - Y10T 428/24562: Interlaminar spaces - Y10T 428/2481: including layer of mechanically interengaged strands, strand-portions or strand-like strips - Y10T 428/24851: Intermediate layer is discontinuous or differential - 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 - B44F: SPECIAL DESIGNS OR PICTURES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A multilayer structure incorporating at least one security element. The multilayer structure includes a substrate made of a thermoplastic material with at least one non-opaque region. The multilayer structure further includes an external layer. An internal layer is disposed between the substrate and the external layer. The external and internal layers are made of a thermoplastic material. An opening in the internal layer defines a security region. An insert having a non-opaque security element is at least partially disposed within the security region. The security element and the non-opaque region of the substrate at least partially overlap. ## Claims ### Claim 1 A multilayer structure, comprising: a substrate comprising a thermoplastic material, having at least one non-opaque region; a first external layer comprising a thermoplastic material; between the substrate and the first external layer, a first internal layer of thermoplastic material, defining a first security region; and a first insert disposed at least partially within the first security region, comprising a first security element which is non-opaque and other than defined by the shape of the contour of the insert, the first security element and the non-opaque region of the substrate being at least partially superposed. ### Claim 2 (depends on 1) The structure as claimed in claim 1, comprising: a second external layer, comprising a thermoplastic material, between the substrate and the second external layer, a second internal layer of thermoplastic material, defining a second security region, a second insert disposed at least partially within the second security region, the second insert preferably comprising a second, security element, the first and second inserts being at least partially superposed. ### Claim 3 (depends on 2) The structure as claimed in claim 2, the second security element being non-opaque. ### Claim 4 (depends on 2) The structure as claimed in claim 2, the second insert being non-opaque. ### Claim 5 (depends on 1) The structure as claimed in claim 1, the first security region being bounded by a first opening or recess whose bottom is transparent or translucent, of the first internal layer. ### Claim 6 (depends on 2) The structure as claimed in claim 2, the second security region being bounded by a second opening or recess whose bottom is transparent or translucent, of the second internal layer. ### Claim 7 (depends on 5) The structure as claimed in claim 5, the first insert being more extended than the first opening. ### Claim 8 (depends on 6) The structure as claimed in claim 6, the first and second openings being superposed. ### Claim 9 (depends on 8) The structure as claimed in claim 8, the first and second opening each having a circular shape. ### Claim 10 (depends on 9) The structure as claimed in claim 9, the first and second opening being exactly superposed. ### Claim 11 (depends on 1) The structure as claimed in claim 1, the first insert or the second insert taking the form of a patch or patches. ### Claim 12 (depends on 1) The structure as claimed in claim 1 the first or second inserts comprising a fibrous material. ### Claim 13 (depends on 9) The structure as claimed in claim 9, the first and second inserts comprising respectively a first and a second watermarks or pseudo-watermarks. ### Claim 14 (depends on 1) The structure as claimed in claim 1, the first security element being observable only from one side of the structure. ### Claim 15 (depends on 1) The structure as claimed in claim 1, comprising a first printing support layer, comprising a thermoplastic material, under the first external layer. ### Claim 16 (depends on 2) The structure as claimed in claim 2, comprising a second printing support layer comprising a thermoplastic material, under the second external layer. ### Claim 17 (depends on 2) The structure as claimed in claim 2, the first and second security elements cooperating in transmitted light. ### Claim 18 (depends on 17) The structure as claimed in claim 17, the security elements being watermarks or pseudo-watermarks. ### Claim 19 (depends on 17) The structure as claimed in claim 17, the first and second security elements respectively comprising a set of elementary patterns or a coded image, and an optical structure giving an image of at least a part of the elementary patterns or of the coded image. ### Claim 20 (depends on 1) The structure as claimed in claim 1, the thermoplastic material of the substrate or of the first or second external layer being transparent or translucent. ### Claim 21 (depends on 1) The structure as claimed in claim 1, the substrate comprising an electronic device. ### Claim 22 (depends on 1) The structure as claimed in claim 1, complying with the dimensional specifications of the standard ISO10373. ### Claim 23 (depends on 1) The structure as claimed in claim 1, the first or the second internal layers being opaque. ### Claim 24 (depends on 1) The structure as claimed in claim 1, the substrate comprising polycarbonate. ### Claim 25 (depends on 1) The structure as claimed in claim 1, comprising at least one layer of adhesive on the first insert. ### Claim 26 (depends on 1) The structure as claimed in claim 1, the substrate accommodating a wired antenna. ### Claim 27 (depends on 1) The structure as claimed in claim 1, the first insert comprising elementary patterns or a coded image, which may be observed through a revelation screen or a lens array carried by the structure. ### Claim 28 (depends on 2, 27) The structure as claimed in claim 27 dependent on claim 2, the revelation screen or the lens array being carried by the second insert. ### Claim 29 (depends on 1) The structure as claimed in claim 1, the substrate being translucent and diffusing light. ### Claim 30 (depends on 29) The structure as claimed in claim 29, the first insert carrying a watermark or pseudo-watermark that is only observable from one face of the structure. ### Claim 31 (depends on 1) The structure as claimed in claim 1, comprising printing on the first external layer or on a layer adjacent to this first external layer. ### Claim 32 (depends on 1) An article, comprising the structure as claimed in claim 1. ### Claim 33 (depends on 32) An article as claimed in claim 32, being a security document, chosen from amongst an access or identification card, a page of a passport, a page of data relating to the carrier of the document. ### Claim 34 (depends on 32) A method for authenticating an article as claimed in claim 32, in which information relating to the authenticity of the article or of the structure is extracted from an observation through the first security element and the non-opaque region. ### Claim 35 (depends on 34) The method as claimed in the claim 34, in which each security element is observed from a corresponding face of the structure and information relating to the authenticity of the article or of the structure is extracted from this observation.