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WO2016173696A1 - Élément de sécurité à structure multicouche - Google Patents

Élément de sécurité à structure multicouche Download PDF

Info

Publication number
WO2016173696A1
WO2016173696A1 PCT/EP2016/000597 EP2016000597W WO2016173696A1 WO 2016173696 A1 WO2016173696 A1 WO 2016173696A1 EP 2016000597 W EP2016000597 W EP 2016000597W WO 2016173696 A1 WO2016173696 A1 WO 2016173696A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
security element
interference
color
security
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2016/000597
Other languages
German (de)
English (en)
Inventor
Giselher Dorff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient GmbH
Original Assignee
Giesecke and Devrient GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=55755558&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2016173696(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Priority to EP16716825.1A priority Critical patent/EP3288770B2/fr
Priority to CN201680022487.0A priority patent/CN107531082B/zh
Publication of WO2016173696A1 publication Critical patent/WO2016173696A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • 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
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • 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
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • 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
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • 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
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • 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
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • 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
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives

Definitions

  • the invention relates to a security element for security papers, valuable documents or the like, which consists of an interference-capable, multilayer construction, wherein the interference-capable, multi-layered structure comprises a reflection layer, a dielectric layer and a partially transparent layer, wherein the dielectric layer between the reflective layer and the partially permeable layer is arranged.
  • a generic security element is for example from the
  • the viewer perceives a certain color, which changes as the viewing angle changes.
  • the cause of the color shift is an interference effect between the light rays reflected from the surface of the outer partially transmissive layer and the light rays which pass through the outer partially transmissive and middle dielectric layers and are reflected back from the reflection layer to the partially transmissive layer.
  • the light beams are then either transmitted to the outside or reflected again, so that in this case the light beams are repeatedly reflected back and forth between the reflection layer and the partially transparent layer.
  • Thin film layer have passed, a longer path than the reflected on the surface of the thin-film layer light beams, so that they are out of phase with them, if they interfere with them. If the light rays incident on the thin film layer encounter the thin film layer at different angles of incidence, the light beam is in the Thin-film layer traveled path of light rays of different lengths. This difference results from the path difference of the beams reflected multiple times within the thin film layer due to the angle of incidence. Therefore, the phase angle of the interfering light beams is different depending on the angle of incidence, so that depending on the angle of incidence different colors or hues of the resulting, perceived by the observer light beam result, a so-called color shift effect.
  • such a generic security element is also referred to as a thin film layer interference layer structure or as a color shift element.
  • the invention is therefore the object of developing a generic security element such that the disadvantages of the prior art is eliminated and the protection against counterfeiting is further increased.
  • the reflection layer of the interference-capable, multilayer structure is formed by a color layer or a further multilayer structure, wherein the color layer and the multilayer structure are configured such that they show a metallic hue in reflected light and a colorful hue in transmitted light.
  • a color layer with a metallic hue a color layer is referred to in the context of this invention, which has a metallic reflective surface with a metal-colored hue, which preferably golden or
  • a color layer with a colored hue is a color layer which has a single- or multi-colored surface, preferably a monochrome blue, a monochrome green or a red one.
  • Transmitted light is present when the illumination of an object takes place from one side and the viewing from the other side.
  • Incident light is when the illumination and viewing are from the same side of an object.
  • the dielectric spacer layer with a thickness h and a refractive index v satisfies the relation 120 nm ⁇ h v ⁇ 190 nm or
  • the invention thus replaces the reflection layer of a color shift element known from the prior art by a color layer with platelet color.
  • incident light both the color layer with platelet-shaped metallic particles and the further multi-layered structure show a golden hue, thus reflecting the incident light and acting like a reflection layer.
  • the security element according to the invention in reflected light shows the color-shifting effect known from the prior art.
  • transmitted light on the other hand, both the color layer with platelet-shaped metallic particles and the further multi-layered structure show a blue hue and do not reflect the incident light at all or only insignificantly.
  • the security element according to the invention thus shows a blue hue and no color shift effect.
  • at least one of the dielectric layers of the interference-capable multilayer structure consists of silicon dioxide (S1O2).
  • the partially transparent layer of the interference-capable, multilayer structure preferably consists at least of chromium and / or nickel.
  • a dielectric layer may consist of a transparent printing layer having a constant thickness.
  • the invention further relates to a see-through security element for security papers, documents of value and the like, with a carrier and a security element according to the invention applied to the carrier.
  • a carrier is in particular a transparent or translucent plastic film.
  • a lacquer layer can be arranged between the security element and the carrier, which preferably consists of an embossing lacquer.
  • an embossing lacquer may be, for example, a UV lacquer, ie a lacquer which cures under the action of ultraviolet light, or a thermoplastic embossing lacquer.
  • embossing lacquer preferably diffractive structures, holograms or micromirrors are embossed.
  • the thickness of this paint layer is 1 ⁇ to 12 ⁇ , preferably 2 ⁇ to 7 ⁇ .
  • Translucency in the sense of this invention means that an object, such as the substrate or the plastic film, can transmit incident light in a certain proportion. If light strikes one side of the object, a certain portion of the light is transmitted to the other side of the object and exits there again. The greater the percentage of transmitted light, with respect to the incident light, the more translucent the object is. If the percentage is at least 90%, i. If the object allows the incident light to pass through almost unattenuated, as in the case of a window, the object is called transparent.
  • the simplified term value document includes all the above materials, documents and product safeguards.
  • the terms "front side” or “back side” of a substrate, security paper or value document are relative terms, which may also be referred to as “the one” and “the opposite” side and which represent the overwhelming portion of the overall surface of the substrate, security paper or value document form. Specifically, these terms do not include the side surfaces of a substrate, security paper or value document that are negligibly small and usually not included in the thickness of a substrate or value document, which is only about a millimeter in the case of card bodies or fractions of a millimeter for banknotes Security elements or coatings are or can be provided. In particular, no see-through effects can be achieved with the side surfaces.
  • the security element according to the invention shows an observer in incident light and in transmitted light information.
  • Information in the sense of this invention is a pattern-shaped and visually perceptible coating. This can, for example, form a graphic image, an image, a number, a letter, a text or other characters.
  • the information consists of positive and / or negative motives.
  • a positive motif in this case a motif element is itself applied to the substrate, whereas in the case of a negative motif the area surrounding the motif element is applied to the substrate.
  • a positive subject is a letter printed in dark color on the light substrate.
  • a negative motif is, for example, a surface applied in a dark color to the substrate, which has an unprinted area in the form of a letter within the area.
  • each in side view schematically show:
  • FIG. 1 shows a security element according to the invention whose reflection layer consists of a color layer
  • Fig. 2 shows a security element according to the invention whose reflection layer consists of a further multilayer structure
  • Fig. 3 shows the security element according to the invention of Fig. 1, which is fixed with a lacquer layer on a support.
  • the reflection layer 1 shows a side view of a security element according to the invention with a partially transparent layer 3 and a reflection layer 1, between which a dielectric layer 2 is arranged. These three layers together form a thin film layer interference layer structure.
  • the reflection layer 1 consists of a color layer which contains platelet-shaped metallic particles whose longest edge length is 15 nm to 1000 nm and whose thickness is 2 nm to 100 nm, so that this color layer shows a golden hue in light and a blue hue in transmitted light.
  • the viewer 9 sees in incident light, i. with a lighting 11 from the front side 7, a color-tilting effect, in which the color of the security element, for example, changes from purple to green when the security element is tilted.
  • transmitted light i. E.
  • the color-shift effect disappears and the viewer 9 sees the security element in a blue color.
  • FIG. 2 shows a side view of a security element according to the invention, in which the reflection layer 1, in contrast to the security element from FIG. 1, consists of a further multilayer structure comprising two semitransparent mirror layers 4 and 6 and at least one dielectric layer 5 arranged between the two mirror layers ,
  • the two semitransparent mirror layers 4 and 6 preferably each consist of a thin layer of aluminum and the dielectric layer 5 of S1O2.
  • the incident and reflected light result in the same effect on both the front side 7 and the rear side 8 as for the observer from FIG. 1.
  • FIG. 3 shows the security element according to the invention from FIG. 1, which is fastened with a lacquer layer 15 on a carrier 16.
  • the lacquer layer 15 here preferably consists of a UV lacquer, the support 16 preferably made of a plastic film.
  • the security element with the reflection layer 1 is fixed on the carrier 16 via the lacquer layer 15 and, according to FIG. 3 b, with the partially permeable layer 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Optical Filters (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un élément de sécurité pour papiers de sécurité, documents de valeur ou analogues, qui est constitué d'une structure multicouche apte à générer un phénomène d'interférence, la structure multicouche apte à générer un phénomène d'interférence comprenant une couche réfléchissante, une couche diélectrique et une couche semi-transparente, la couche diélectrique étant disposée entre la couche réfléchissante et la couche semi-transparente. Selon l'invention, la couche réfléchissante de la structure multicouche apte à générer un phénomène d'interférence est formée par une couche de couleur ou une autre structure multicouche, la couche de couleur et cette structure multicouche étant réalisées de sorte à prendre une teinte métallique vues par réflexion et une teinte colorée vues par transparence.
PCT/EP2016/000597 2015-04-28 2016-04-11 Élément de sécurité à structure multicouche Ceased WO2016173696A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16716825.1A EP3288770B2 (fr) 2015-04-28 2016-04-11 Élément de sécurité à structure multicouche
CN201680022487.0A CN107531082B (zh) 2015-04-28 2016-04-11 具有多层结构的安全元件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015005446.5 2015-04-28
DE102015005446.5A DE102015005446A1 (de) 2015-04-28 2015-04-28 Sicherheitselement mit Mehrschichtstruktur

Publications (1)

Publication Number Publication Date
WO2016173696A1 true WO2016173696A1 (fr) 2016-11-03

Family

ID=55755558

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/000597 Ceased WO2016173696A1 (fr) 2015-04-28 2016-04-11 Élément de sécurité à structure multicouche

Country Status (4)

Country Link
EP (1) EP3288770B2 (fr)
CN (1) CN107531082B (fr)
DE (1) DE102015005446A1 (fr)
WO (1) WO2016173696A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018210597A1 (fr) 2017-05-15 2018-11-22 Basf Se Procédé pour la préparation de couches de nanoparticules métalliques et leur utilisation pour des éléments décoratifs ou de sécurité
WO2019016136A1 (fr) 2017-07-20 2019-01-24 Basf Se Nanoparticules de dioxyde de titane fonctionnalisées en surface par phosphonate
WO2019020682A1 (fr) 2017-07-28 2019-01-31 Basf Se Procédé de préparation de couches de nanoparticules métalliques et leur utilisation pour des éléments décoratifs ou de sécurité
WO2020083794A1 (fr) 2018-10-25 2020-04-30 Basf Se Compositions comprenant des nanoplaquettes d'argent
WO2020152021A1 (fr) 2019-01-21 2020-07-30 Basf Se Élément de sécurité
WO2020156858A1 (fr) 2019-01-29 2020-08-06 Basf Se Élément de sécurité
WO2020224982A1 (fr) 2019-05-06 2020-11-12 Basf Se Compositions comprenant des nanoplaquettes d'argent
WO2021052907A1 (fr) 2019-09-17 2021-03-25 Basf Se Nanoparticules d'oxyde métallique
WO2021213942A1 (fr) 2020-04-23 2021-10-28 Basf Se Compositions comprenant des particules de métal de transition en forme de plaquettes
WO2022038161A1 (fr) 2020-08-21 2022-02-24 Basf Se Revêtements durcissables aux uv ayant un indice de réfraction élevé
WO2022167377A1 (fr) 2021-02-03 2022-08-11 Basf Se Compositions comprenant des nanoplaquettes d'argent
WO2022238468A1 (fr) 2021-05-12 2022-11-17 Basf Se Compositions comprenant des particules de métal de transition en forme de plaquettes
WO2023072740A1 (fr) 2021-10-26 2023-05-04 Basf Se Procédé pour la production d'éléments d'interférence
EP4234641A1 (fr) 2022-02-25 2023-08-30 Basf Se Compositions comprenant des nanoparticules de dioxyde de titane modifiées et leurs utilisations
WO2024012962A1 (fr) 2022-07-11 2024-01-18 Basf Se Revêtements durcissables aux uv ayant un indice de réfraction élevé
EP4331840A4 (fr) * 2021-04-25 2024-07-24 Zhongchao Special Security Technology Co., Ltd Élément en film mince, élément transparent anti-contrefaçon et support de données
WO2024231418A1 (fr) 2023-05-08 2024-11-14 Basf Se Compositions comprenant des nanoplaquettes d'argent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020007728A1 (de) 2020-12-17 2022-06-23 Giesecke+Devrient Currency Technology Gmbh Datenträger mit Verbundsubstrat mit einem in einem Durchsichtsbereich angeordneten Sicherheitselement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005038136A1 (fr) * 2003-10-17 2005-04-28 Giesecke & Devrient Gmbh Element de securite a effet de derive chromatique
WO2009050448A1 (fr) * 2007-10-19 2009-04-23 De La Rue International Limited Dispositif de sécurité à cristaux photoniques et procédé
EP2708371A1 (fr) * 2012-09-18 2014-03-19 Giesecke & Devrient GmbH Elément de sécurité optique variable avec effet visuel supplémentaire de réflexion/transmission

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6761959B1 (en) 1999-07-08 2004-07-13 Flex Products, Inc. Diffractive surfaces with color shifting backgrounds
EP1849620B1 (fr) 2000-01-21 2016-03-23 Viavi Solutions Inc. Dispositifs de sécurité optiquement variables
DE10243653A1 (de) 2002-09-19 2004-04-01 Giesecke & Devrient Gmbh Sicherheitspapier
US7161738B2 (en) 2003-08-07 2007-01-09 Agra Vadeko Inc. Secure document of value and method of manufacturing same
DE102004022080A1 (de) 2004-05-05 2005-11-24 Giesecke & Devrient Gmbh Wertdokument mit visuell erkennbaren Kennzeichnungen
DE602006017644D1 (de) * 2005-01-14 2010-12-02 Cabot Corp Sicherheitseinrichtungen sowie verwendung und herstellungsverfahren davon
AU2006202315B2 (en) 2005-06-17 2011-01-27 Viavi Solutions Inc. Covert security coating
DE102008028187A1 (de) 2008-06-12 2009-12-17 Giesecke & Devrient Gmbh Sicherheitselement mit optisch variablem Element.
DE102009041583A1 (de) 2009-09-15 2011-03-17 Giesecke & Devrient Gmbh Dünnschichtelement mit Interferenzschichtaufbau
KR101830991B1 (ko) 2009-11-27 2018-02-21 바스프 에스이 보안 부재 및 홀로그램을 위한 코팅 조성물
DE102009058243A1 (de) 2009-12-14 2011-06-16 Giesecke & Devrient Gmbh Dünnschichtelement mit Mehrschichtstruktur
EP2999756B1 (fr) 2013-05-21 2017-07-26 Basf Se Éléments de sécurité et leur procédé de fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005038136A1 (fr) * 2003-10-17 2005-04-28 Giesecke & Devrient Gmbh Element de securite a effet de derive chromatique
WO2009050448A1 (fr) * 2007-10-19 2009-04-23 De La Rue International Limited Dispositif de sécurité à cristaux photoniques et procédé
EP2708371A1 (fr) * 2012-09-18 2014-03-19 Giesecke & Devrient GmbH Elément de sécurité optique variable avec effet visuel supplémentaire de réflexion/transmission

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018210597A1 (fr) 2017-05-15 2018-11-22 Basf Se Procédé pour la préparation de couches de nanoparticules métalliques et leur utilisation pour des éléments décoratifs ou de sécurité
US11274219B2 (en) 2017-07-20 2022-03-15 Basf Se Surface functionalized titanium dioxide nanoparticles
WO2019016136A1 (fr) 2017-07-20 2019-01-24 Basf Se Nanoparticules de dioxyde de titane fonctionnalisées en surface par phosphonate
WO2019020682A1 (fr) 2017-07-28 2019-01-31 Basf Se Procédé de préparation de couches de nanoparticules métalliques et leur utilisation pour des éléments décoratifs ou de sécurité
US11643561B2 (en) 2017-07-28 2023-05-09 Basf Se Process for the preparation of metallic nano-particle layers and their use for decorative or security elements
WO2020083794A1 (fr) 2018-10-25 2020-04-30 Basf Se Compositions comprenant des nanoplaquettes d'argent
US12208447B2 (en) 2018-10-25 2025-01-28 Basf Se Compositions, comprising silver nanoplatelets
WO2020152021A1 (fr) 2019-01-21 2020-07-30 Basf Se Élément de sécurité
US11945254B2 (en) 2019-01-21 2024-04-02 Basf Se Security element
WO2020156858A1 (fr) 2019-01-29 2020-08-06 Basf Se Élément de sécurité
US12296391B2 (en) 2019-01-29 2025-05-13 Basf Se Security element
WO2020224982A1 (fr) 2019-05-06 2020-11-12 Basf Se Compositions comprenant des nanoplaquettes d'argent
WO2021052907A1 (fr) 2019-09-17 2021-03-25 Basf Se Nanoparticules d'oxyde métallique
WO2021213942A1 (fr) 2020-04-23 2021-10-28 Basf Se Compositions comprenant des particules de métal de transition en forme de plaquettes
WO2022038161A1 (fr) 2020-08-21 2022-02-24 Basf Se Revêtements durcissables aux uv ayant un indice de réfraction élevé
WO2022167377A1 (fr) 2021-02-03 2022-08-11 Basf Se Compositions comprenant des nanoplaquettes d'argent
EP4331840A4 (fr) * 2021-04-25 2024-07-24 Zhongchao Special Security Technology Co., Ltd Élément en film mince, élément transparent anti-contrefaçon et support de données
WO2022238468A1 (fr) 2021-05-12 2022-11-17 Basf Se Compositions comprenant des particules de métal de transition en forme de plaquettes
WO2023072740A1 (fr) 2021-10-26 2023-05-04 Basf Se Procédé pour la production d'éléments d'interférence
EP4234641A1 (fr) 2022-02-25 2023-08-30 Basf Se Compositions comprenant des nanoparticules de dioxyde de titane modifiées et leurs utilisations
WO2024012962A1 (fr) 2022-07-11 2024-01-18 Basf Se Revêtements durcissables aux uv ayant un indice de réfraction élevé
WO2024231418A1 (fr) 2023-05-08 2024-11-14 Basf Se Compositions comprenant des nanoplaquettes d'argent

Also Published As

Publication number Publication date
EP3288770B1 (fr) 2019-06-26
DE102015005446A1 (de) 2016-11-03
EP3288770B2 (fr) 2024-08-21
CN107531082A (zh) 2018-01-02
EP3288770A1 (fr) 2018-03-07
CN107531082B (zh) 2019-06-25

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