EP3475099A1 - Verfahren zur herstellung eines sicherheits- oder wertprodukts mit einem diffraktiven sicherheitselement - Google Patents
Verfahren zur herstellung eines sicherheits- oder wertprodukts mit einem diffraktiven sicherheitselementInfo
- Publication number
- EP3475099A1 EP3475099A1 EP17777503.8A EP17777503A EP3475099A1 EP 3475099 A1 EP3475099 A1 EP 3475099A1 EP 17777503 A EP17777503 A EP 17777503A EP 3475099 A1 EP3475099 A1 EP 3475099A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesive
- latent
- security
- reactive
- hot melt
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 5
- 239000004823 Reactive adhesive Substances 0.000 claims abstract description 50
- 239000004831 Hot glue Substances 0.000 claims abstract description 47
- 239000000758 substrate Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000012790 adhesive layer Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 19
- 229920001228 polyisocyanate Polymers 0.000 claims description 5
- 239000005056 polyisocyanate Substances 0.000 claims description 5
- 229920013730 reactive polymer Polymers 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920013640 amorphous poly alpha olefin Polymers 0.000 claims description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920005601 base polymer Polymers 0.000 claims description 3
- 229920006147 copolyamide elastomer Polymers 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 2
- 238000007650 screen-printing Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 description 20
- 239000010410 layer Substances 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 239000007787 solid Substances 0.000 description 6
- 239000012792 core layer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000012943 hotmelt Substances 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000004822 Hot adhesive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 231100000219 mutagenic Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
- B42D25/465—Associating two or more layers using chemicals or adhesives
- B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/006—Patterns of chemical products used for a specific purpose, e.g. pesticides, perfumes, adhesive patterns; use of microencapsulated material; Printing on smoking articles
-
- 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
- B42D25/328—Diffraction gratings; Holograms
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
- G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
- G09F3/0294—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
Definitions
- the invention relates to a method for producing a security or value product with a carrier substrate made of paper and a diffractive security element, which is connected via an adhesive layer directly to the carrier substrate. Furthermore, the invention relates to a safety or value product produced by the method.
- Security or value products such as personal documents, access control cards, motor vehicle documents, banknotes, stamps, tax stamps, VISA, tickets or bank cards, usually have defined security features that make it difficult to counterfeit or even impossible.
- the human-recognizable security features can be divided into visual, haptic and acoustic security features.
- the security or value documents relevant in connection with the present invention have an optical security feature. Specifically, the security or value documents carry diffractive security elements.
- the microstructures include gratings, mostly in the form of surface reliefs which diffract incident light by diffraction. This produces various effects such as two-dimensional or three-dimensional images, kinematic effects or color changes.
- the different types of DOVID differ by their image resolution, brightness, and animation properties. Examples include holograms and kinegrams.
- diffractive security elements such as holograms, kinegrams and alphagrams
- a hot melt adhesive on a carrier substrate made of paper.
- an indicator can be incorporated into the adhesive (for example rhodamine), which triggers a color reaction when manipulated with solvents, such as ethanol and acetone. This chemical reaction produces a colored reaction product which penetrates into the carrier substrate, usually paper, and / or discolors the security element.
- solvents such as ethanol and acetone
- DE 10 2008 052 572 A1 describes a security or value document with a core layer which contains electronic components or diffractive security elements embedded in a polymer matrix. Laminated layers of polymer are applied to the top and bottom of the security or value document. In order to prevent damage to the functional elements of the core layer during lamination, a protective layer of a polymeric material is provided between the polymer layers and the core layer. The core layer, the protective layers and the outer polymer layers are adhesively bonded together using a latent reactive adhesive which enables a material bond between the respective polymeric materials of the layers.
- a security or value product in particular a security or value document
- a substrate preferably of paper
- a diffractive security element which by means of an adhesive layer directly connected to the substrate, remedy or at least reduce.
- the invention is based on the finding that a connection of security element and substrate by means of a latent-reactive adhesive can prevent manipulation by detachment of the security element.
- the latent-reactive adhesive is introduced into the hot-melt adhesive matrix or is present in sections separately therefrom.
- the latent-reactive adhesive is activated during the application process and creates an insoluble chemical bond between the substrate and the security element. A full-surface detachment is made difficult or completely prevented, since manipulation of the security element, a cohesive destruction of paper and security element is caused, which makes a reconstruction of the security feature almost impossible.
- the process sequence according to the invention is in principle designed such that the joining process is subject to a differentiated temperature regime, in which temperatures prevail in a first phase, which only allow dedicated processing of the hotmelt adhesive. Only when the security element is fixed in the intended area of the substrate with the aid of the hotmelt adhesive, the temperature is increased in a second phase so that the latent-reactive adhesive activated and the desired (additional) chemical connection takes place.
- the temperature in the second phase must always be set in such a way that the hot melt adhesive actually used in the application is not thermally damaged.
- application temperature is understood to mean the processing temperature of the adhesive recommended by the manufacturer. If the manufacturer specifies a temperature range, the lower limit is decisive.
- the application temperature is the lowest temperature specification. If there is no indication of the processing temperatures of the hot melt adhesive, the application temperature for hot melt adhesive is the glass transition temperature of the base polymer. If there is no indication of the processing temperatures of the latent-reactive adhesives, the application temperature for latent-reactive adhesives, the temperature at which at least 90% of the functionalities required for curing the adhesive are consumed within a time window of 15 minutes. In the case of a latent-reactive adhesive based on a surface-deactivated di- or polyisocyanate and at least one isocyanate-reactive polymer, for example, the degradation of the isocyanate functionality would be decisive.
- the application temperature T a1 of the hot melt adhesive is in the range of 45 to 245 ° C, in particular in the range of 55 to 145 ° C, and the application temperature T a2 of the latent-reactive adhesive in the range of 50 to 250 ° C. , in particular in the range of 60 to 150 ° C. If the application temperatures T a i and T a 2 are within the stated range, it is ensured that neither the substrate material nor the diffractive security element are thermally damaged during the joining step. Independently or in combination thereof, it is preferred if the application temperature T a2 of the latent-reactive adhesive is at least 5 ° C. above the application temperature T a1 of the hotmelt adhesive.
- the application temperature T a2 of the latent-reactive adhesive is 5 ° C. to 40 ° C., more preferably 10 to 20 ° C. above the application temperature T a1 of the hot-melt adhesive. This ensures that a material-locking connection between the carrier substrate and security element by the latent-reactive adhesive takes place only after placement and the adhesive properties of the latent-reactive adhesive previously did not hinder the processing process.
- Latent-reactive adhesives for the purposes of the invention are adhesive compositions which are storable at room temperature and cure at higher temperatures on their own by the formation of covalent bonds.
- an adhesive composition based on a combination of a surface-deactivated di- or polyisocyanate and at least one isocyanate-reactive polymer is preferably used as the latent-reactive adhesive. It may also be a latent-reactive hot-melt adhesive, especially when a mixture with the (not latently reactive) hot melt adhesive is used. Examples of latent-reactive adhesives suitable for the purposes of the invention can be found in EP 2 712 879 A1.
- the latent-reactive hotmelt adhesive composition described therein comprises a mixture of polymers which differ in the melting temperature and in the number of functionalities present, which in principle can react with an isocyanate group. Further, the composition contains a surface-deactivated di- or polyisocyanate.
- EP 0 598 973 B1 describes a process for the preparation of reactive hotmelts. These consist of room temperature solid but fusible polymer with isocyanate-reactive groups and a premix of a solid isocyanate and a deactivator. The melt is coated on carrier materials in layers so that the deactivated isocyanate and polymer layers are not mixed. Above 40 ° C, these layers can be liquefied and reshaped. They harden between 100 and 120 ° C.
- EP 1 231 232 B1 describes a reactive one-component hot melt adhesive which is solid at room temperature and comprises an isocyanate which is liquid or solid at room temperature, an isocyanate-reactive polymer which is solid at room temperature and a polymer which is inert toward isocyanate groups.
- This adhesive is included Room temperature non-sticking before and is only when heated to temperatures between 60 ° C and 160 ° C adheres.
- a suitable latent-reactive adhesive can be found in EP 0 922 720 A1. It describes the use of an aqueous dispersion containing at least one surface-deactivated polyisocyanate and at least one isocyanate-reactive polymer for the preparation of storage-stable, latent-reactive layers or powders.
- Hotmelt adhesives also known as hotmelt adhesives, hotmelt or hotmelt, are solvent-free and more or less solid at room temperature, which are applied to the adhesive surface when hot and produce a firm bond on cooling. Hot melt adhesives are purely physically setting adhesives, that is, the already finished adhesive is introduced into the adhesive joint, which was converted by heating into a processable form and solidifies again on cooling.
- a hot melt adhesive is preferably an adhesive composition comprising a base polymer selected from the group comprising polyamides (PA), polyethylene (PE), amorphous polyalphaolefins (APAO), ethylene-vinyl acetate copolymers (EVAC), polyester elastomers (TPE-E), polyurethane elastomers ( TPE-U), copolyamide elastomers (TPE-A) and vinylpyrrolidone / vinyl acetate copolymers, especially when a mixture with the latent-reactive adhesive is used.
- PA polyamides
- PE polyethylene
- APAO amorphous polyalphaolefins
- EVAC ethylene-vinyl acetate copolymers
- TPE-E polyester elastomers
- TPE-U polyurethane elastomers
- TPE-A copolyamide elastomers
- vinylpyrrolidone / vinyl acetate copolymers especially when a mixture
- hot melt adhesive and latent-reactive adhesive preferably 100 parts by weight of the hot melt adhesive is mixed with 5 to 50 parts by weight of the latent-reactive adhesive.
- the hot-melt adhesive and the latent-reactive adhesive are present separately in sections and sections with the latent-reactive adhesive are applied before sections with the hot-melt adhesive. Since the application temperature of the hot melt adhesive is lower than the application temperature of the latent-reactive adhesive, the subsequent application of the hot melt adhesive does not activate the adhesion of the latent-reactive adhesive. As a result, more functionalities for the subsequent covalent attachment to the substrate and the security element are available.
- the ratio of the total area of all portions of the hotmelt adhesive to the total area of all portions of the latent-reactive adhesive is 20: 1 to 2: 1.
- the application of the latent-reactive adhesive is preferably carried out by screen printing.
- a further aspect of the invention is the provision of a security or value product, in particular a security or value document, with a substrate, preferably of paper, and a diffractive security element, which is connected directly to the carrier substrate by means of an adhesive layer, wherein the security device or desired product is prepared by the method described above. Accordingly, the latent-reactive adhesive is cured and covalently bonded to the substrate and security element.
- Value and / or security products in the sense of the invention include, for example, passports, identity cards, driving licenses, access control cards or other ID cards, vehicle registration documents, vehicle registration documents, visas, checks, means of payment, in particular banknotes, company identity cards, credentials, membership cards, gift or shopping vouchers, consignment notes, Tax stamps, postage stamps, tickets, tokens, certificates or adhesive labels (for example for product security).
- Figure 1 is a schematic sectional view through a security or
- Figure 2 is a schematic sectional view through a security or
- FIG. 1 shows-very schematically-a sectional view through an inventive security or value product 100, for example a banknote, according to a first variant.
- the security product or valuable product 100 comprises a carrier substrate 10 made of paper.
- a diffractive security element 20, for example a kinegram is applied by means of an adhesive layer 30.
- the security or value product 100 can be manufactured as follows:
- a mixture of the following components is applied: a) 100 parts by weight of a hot melt adhesive with an application temperature of about 60 ° C; and b) 20 parts by weight of a latent-reactive adhesive having an application temperature of about 80 ° C.
- the application of the mixture takes place at a temperature which corresponds to the application temperature of the hotmelt adhesive.
- a kinegram applied on the back of aluminum foil is quickly placed on the hot adhesive mixture in the adhesive joint, and then the temperature is raised to the application temperature of the latent-reactive adhesive.
- FIG. 2 also represents a highly sectional view of a further variant of the security product 100 of the invention.
- a diffractive security element 20, for example a kinegram is fastened to the carrier substrate 10 made of paper by means of an adhesive layer 30.
- the security or value product 100 can be manufactured as follows:
- first sections 34 of the joining area are screen-printed with a latent-reactive adhesive having an application temperature of about 80 ° C. In this case, about 15% of the total surface of the adhesive joint is coated.
- the remaining second sections 32 are filled with a hot-melt adhesive having an application temperature of about 60 ° C, the temperature corresponding to the manufacturer's recommended processing temperature.
- a kinegram applied on the back of aluminum foil is applied quickly and the temperature is raised to the application temperature of the latent-reactive adhesive.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pest Control & Pesticides (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Manufacturing & Machinery (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Credit Cards Or The Like (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016117674.5A DE102016117674A1 (de) | 2016-09-20 | 2016-09-20 | Verfahren zur Herstellung eines Sicherheits- oder Wertprodukts mit einem diffraktiven Sicherheitselement |
PCT/EP2017/073237 WO2018054765A1 (de) | 2016-09-20 | 2017-09-15 | Verfahren zur herstellung eines sicherheits- oder wertprodukts mit einem diffraktiven sicherheitselement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3475099A1 true EP3475099A1 (de) | 2019-05-01 |
EP3475099B1 EP3475099B1 (de) | 2021-12-15 |
Family
ID=59997317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17777503.8A Active EP3475099B1 (de) | 2016-09-20 | 2017-09-15 | Verfahren zur herstellung eines sicherheits- oder wertprodukts mit einem diffraktiven sicherheitselement |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3475099B1 (de) |
DE (1) | DE102016117674A1 (de) |
WO (1) | WO2018054765A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019120049A1 (de) * | 2019-07-24 | 2021-01-28 | Bundesdruckerei Gmbh | Verfahren und Schmelzklebstoff zur Herstellung eines aus mehreren Schichten bestehenden Wert- oder Sicherheitsdokumentes sowie Wert- oder Sicherheitsdokument |
DE102021000890A1 (de) | 2021-02-19 | 2022-08-25 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement und Verfahren zu seiner Herstellung |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4022584A1 (de) | 1990-07-16 | 1992-01-23 | Kurz Leonhard Fa | Verfahren zur festlegung einer dekorschicht auf einem substrat sowie hierzu geeignete praegefolie |
WO1993025599A1 (de) | 1992-06-15 | 1993-12-23 | Abend Thomas P | Verfahren und stoffmischung zur herstellung reaktiver schmelzmassen |
EP0598973A1 (de) | 1992-11-26 | 1994-06-01 | The Procter & Gamble Company | Flüssige Mehrzweckreinigungszusammensetzung |
EP1029879B1 (de) | 1997-12-11 | 2004-04-14 | Bayer MaterialScience AG | Wässrige Dispersion enthaltend ein oberflächendesaktiviertes Polyisocyanat |
DE10106630A1 (de) | 2001-02-12 | 2002-08-22 | Jowat Lobers U Frank Gmbh & Co | Selbsttragendes reaktives Schmelzklebeelement und seine Verwendung |
DE102007044482A1 (de) | 2007-09-18 | 2009-03-19 | Giesecke & Devrient Gmbh | Sicherheitselement mit Tamper Evident-Effekt |
DE102007054046A1 (de) * | 2007-11-13 | 2009-06-18 | Bayer Materialscience Ag | Latentreaktive Klebstoffe für Identifikations-Dokumente |
DE102008052572A1 (de) | 2008-10-21 | 2010-04-29 | Bayer Materialscience Ag | Latent-reaktiv verklebte TPU/PC-Schichtstoffe |
DE102008062149B3 (de) * | 2008-12-16 | 2010-04-29 | Ovd Kinegram Ag | Verfahren zur Herstellung eines Sicherheitselements sowie Transferfolie |
DE102009031877A1 (de) * | 2008-12-23 | 2010-07-01 | Giesecke & Devrient Gmbh | Sicherheitselement mit verbessertem Heißsiegelklebstoff |
DE102010035889B4 (de) * | 2010-08-30 | 2021-11-11 | Bundesdruckerei Gmbh | Wert- und/oder Sicherheitsdokument und Verfahren zu dessen Herstellung |
EP2455228A1 (de) * | 2010-11-18 | 2012-05-23 | Bayer Material Science AG | Sicherheits- und/oder Wertdokument enthaltend einen elektromechanischen Wandler |
EP2712879B1 (de) | 2012-09-28 | 2018-02-14 | Collano Adhesives AG | Latent reaktive Schmelzklebstoffzusammensetzung |
-
2016
- 2016-09-20 DE DE102016117674.5A patent/DE102016117674A1/de not_active Withdrawn
-
2017
- 2017-09-15 WO PCT/EP2017/073237 patent/WO2018054765A1/de unknown
- 2017-09-15 EP EP17777503.8A patent/EP3475099B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
WO2018054765A1 (de) | 2018-03-29 |
EP3475099B1 (de) | 2021-12-15 |
DE102016117674A1 (de) | 2018-03-22 |
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