WO2009149702A2 - Mehrschichtiges abbaubares polymersystem als sicherheitselement - Google Patents
Mehrschichtiges abbaubares polymersystem als sicherheitselement Download PDFInfo
- Publication number
- WO2009149702A2 WO2009149702A2 PCT/DE2009/000818 DE2009000818W WO2009149702A2 WO 2009149702 A2 WO2009149702 A2 WO 2009149702A2 DE 2009000818 W DE2009000818 W DE 2009000818W WO 2009149702 A2 WO2009149702 A2 WO 2009149702A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- security element
- layers
- element according
- layer
- degradation
- Prior art date
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Classifications
-
- 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
Definitions
- the invention relates to the use of a multilayer polymer system as a security element that can be degraded selectively in layers and appears in chronological order for a viewer in different colors.
- the invention furthermore relates to a security element suitable for this use, to the production thereof, and to products which comprise such a security element.
- GPHF-Minilab® offers the Global Pharma Health Fund registered association (GPHF) a mobile compact laboratory, which within a short time the quality of Review medicines and thus close loopholes in drug surveillance.
- GPHF Global Pharma Health Fund registered association
- the disadvantage of the known security systems is that either a complex equipment is needed to distinguish original from forgery or that the security feature can be forged.
- the object of the invention was therefore to provide a security element that allows everyone to prove the originality of the product with little effort in a short time, which is also inexpensive to manufacture and can only be faked with extreme effort.
- This object could be achieved by a multi-layered layer-selectively degradable polymer system which is suitable to show a visually recognizable change during degradation.
- the security element is protected against counterfeiting because it has to be produced very thinly and with high precision multi-layered for the color change, which is only possible with very complex machines that are not available to a potential counterfeiter.
- the degradation can be triggered in the simplest case by adding a small amount of tap water and the associated change of different colors is visible to the naked eye.
- the invention therefore relates to the use of a polymer system as a security element, characterized in that it is a multilayer, layer-selectively degradable polymer system which is suitable for exhibiting a visually recognizable change, in particular different colors, during degradation ,
- a layer usually consists of a binder which ensures the mechanical stability of the layer and are embedded in the optionally further ingredients.
- the content of binder in a layer is preferably at least about 20 percent by weight (wt .-%), in particular at least about 50 wt .-%, each based on the dry matter of the layer.
- wt .-% percent by weight
- the different colors are produced in particular by dyes and / or pigments introduced into the respective layer, but can also be effected by the binder, for example a different opacity, or if the binder itself has a coloring.
- Color of individual or all layers can also be achieved by micro- or nano-structuring of one or more binder layers.
- the color effects are due to diffraction phenomena of the light at the structured phase boundaries, e.g. in International Patent Application WO2007 / 107235 A1, the disclosure of which is hereby fully incorporated by reference.
- any type of change of a layer whereby the relevant layer of substance loses and / or changes their opacity.
- this degradation takes place more rapidly in the degradable material (s) closest to the surface or surfaces of the material than in the layer (s) farther from the surface.
- the degradation preferably takes place essentially only at the surface or the surfaces.
- the security element of the invention comprises a support and layers applied thereto, wherein at least two of the layers and in particular three, four, five or more than five layers each comprise at least one degradable binder.
- the carrier which is preferably a carrier film, may be one-sided or two-sided with such degradable layers be provided. In this case, the same or different binders may be contained in the different layers. It has been found that two embodiments of the invention are particularly suitable for the material being degraded layer-selectively from the surface starting in deeper layers and not several layers or all layers are degraded simultaneously, as for example when using layers of equal solubility and use a suitable solvent would be the case.
- the polymer system comprises at least two layers which comprise at least one biologically, enzymatically or hydrolytically degradable material as binder, the layers not having to differ substantially or not at the rate of degradation , and wherein the binder is preferably water-insoluble and in particular comprises a material of biological origin (hereinafter also called biological material), such as at least one polysaccharide and / or at least one collagen and / or a protein and / or an optionally partially degraded polypeptide, in particular gelatin, but also synthetic and / or partially synthetic and / or genetically engineered polymers, in particular easily hydrolysable polymers, such as e.g. Polyester and / or polyetherester.
- biological material such as at least one polysaccharide and / or at least one collagen and / or a protein and / or an optionally partially degraded polypeptide, in particular gelatin, but also synthetic and / or partially synthetic and / or genetically engineered polymers, in particular easily hydrolysable polymers, such
- Such a polymer system is degraded in layers starting from the surface by the action of suitable solutions and thus releases the substances stored in the respective layer, preferably dyes and / or pigments, whereby the polymer system gives a clearly visually distinguishable impression over time and in particular in different colors appears.
- This degradation behavior thus differs significantly from other variants that would dissolve the multilayer material as a whole ("bulk"), as a result of which a change in color would not or at least would not be clearly recognizable.
- several adjacent layers are constructed correspondingly degradable.
- aqueous solutions are preferred for a layer with a biodegradable material, in particular those corresponding to physiological solutions, for enzymatically degradable
- enzyme-containing solutions and, for hydrolytically degradable layers in particular solutions having a suitable pH.
- enzymatically degradable layers have proven to be particularly selectively degradable in layers and therefore particularly visually recognizable. Therefore, a multilayered polymer system is particularly suitable for the invention as a security element, which is selectively degraded in layers by the action of enzymes and thereby appears in temporal sequence for a viewer in different colors.
- An aqueous solution or preparation according to the invention comprises any preparation containing at least about 30 weight percent, in particular at least about 50 weight percent water and in particular also tap water of any hardness or pure water.
- the polymer system comprises at least two layers which differ significantly with respect to the rate of degradation or solubility to a suitable solution or a suitable solvent, the faster degradable or more soluble Layer is arranged in each case closer to the surface of the polymer system.
- distinct distinctness is to be understood in particular as meaning that the degradation or dissolution of the layers under the intended conditions of use in the slower-reacting layer is at least about 20%, in particular at least about 50% and particularly preferably at least about 100 % more time than in the faster-acting layer.
- the layers are individually applied to a support and the time is determined within which, under the intended conditions of use of the security element, the visually detectable change of the respective layer is substantially completed.
- such layers may contain hydrolytically degradable polymers, in particular polyesters, at different rates or, for example, an acid-soluble polymer in one layer and an alkali-soluble polymer in another layer.
- hydrolytically degradable polymers in particular polyesters
- an acid-soluble polymer in one layer and an alkali-soluble polymer in another layer.
- suitable solutions or solvents with which such polymer systems are degraded in layers starting from the surface and thus release the substances stored in the respective layer, preferably dyes and / or pigments, whereby the material is time-dependent gives a clearly visually distinguishable impression and appears in particular in different colors.
- the binder of the film may be modified, for example by aqueous polymer latices or polymer dispersions, by water-soluble, optionally crosslinkable polymers or copolymers or protein derivatives. Examples are in Res. Discl. 38 957 (1996) on page 598, Chapter II A and Chapter II C described, for.
- polyacrylamide polyacrylic acid derivative, polyvinylpyrrolidone, polyvinyl alcohol, polyvinylimidazole, polyethylene oxide, polystyrene sulfonic acid or a cellulose sederivat included.
- the binder may further be cured to varying degrees, that is crosslinked, e.g.
- Example by crosslinking via amino groups by means of bisvinylsulfones, aldehydes, cyanuric chlorides or epoxides or by crosslinking via carboxyl and amino groups by means of carbodiimides or carbamoylpyridinium salts or by crosslinking via carboxyl groups by means of aziridine derivatives or metal ions.
- Other suitable curing agents are in Res. Discl. 38 957 (1996) on page 599, chapter ⁇ , B described.
- layer additives are, for example, stabilizers, plasticizers, UV absorbers, optical brighteners, metal salt latices known from DE 30 02 287, polynucleotides, cells, genes, DNA, RNA, microparticles, preferably homodispersed from about 0.5 to about 30 micrometers, nanoparticles Particle sizes from about 5 to about 500 nanometers, inorganic or organic crystals and diatoms with defined microscopic geometry.
- Layers of the polymer system as a binder substantially biological material in particular gelatin or modified gelatin, which has many advantages result.
- Such layers can be made, for example, particularly thin and with a uniform layer thickness, and many layers with different ingredients and predetermined properties can be arranged one above the other.
- the preparation of the security elements according to the invention is carried out in particular by the composition underlying the individual layers as a solution, in particular as an aqueous solution, by means of a suitable casting device on a support, in particular a flexible carrier film, preferably hardened by addition of a curing agent and then is dried.
- a suitable casting device on a support, in particular a flexible carrier film, preferably hardened by addition of a curing agent and then is dried.
- the hardening facilitates the use of the security element and allows its use, for example. even at higher temperatures.
- the dry layer thickness of the individual layers is preferably between about 0.1 and about 100 .mu.m, in particular between about 0.5 and about 50 .mu.m and more preferably between about 1 and about 10 microns.
- Length of about 1 cm of the security element is preferably not more than about 50%, more preferably not more than about 25%, and most preferably not more than 10% of the average dry film thickness in this section.
- a photographic material in particular a color photographic material, with a layer sequence other than the usual one and partially or completely exposed in color or white, to process suitable photographic and thus to use as a security element.
- any image information can be imprinted and when dismantling this image information then appears in changing colors.
- Suitable support materials for the security element of the invention are any materials which give the element sufficient stability on which the polymer system of the invention adheres sufficiently and to which the polymer system can be applied by suitable methods.
- Particularly suitable supports are films or papers, in particular cellulose triacetate film, barite paper and paper coated on both sides with polyethylene, which are also known as support materials for photographic materials.
- films made of polyester (PET or PEN), polycarbonate, polyethylene, polypropylene, polyvinyl chloride, polystyrene or polyamide are preferably suitable.
- composite materials, multilayer materials, printed or embossed materials, as well as multi-phase or pigmented materials can also be used as the support.
- the carriers may e.g. colorless, white, black or colored, reflective, opaque, transparent, clear or matt. As carriers are e.g. also in Res. Discl. 38 957 (1996) on p. 627 to p. 629.
- the thickness of the carrier is not of particular importance for the application according to the invention.
- the carrier of the invention is preferably a film and the layer thickness of the carrier film is in the range from approximately 1 to approximately 1000 ⁇ m, particularly preferably in the range from approximately 10 to approximately 500 ⁇ m.
- the carriers are preferably provided with substrate and / or adhesive layers which are intended to bind the subsequent cast-on layers to the carrier.
- Suitable substrate and / or Adhesive layers are also for example the Res. Discl. 38 957 (1996) on page 627 to page 629.
- aqueous solutions, aqueous preparations or solvent mixtures may be added to the casting solutions, e.g. as a finely divided solid, liquid, solution, emulsion, suspension or dispersion are added and thus introduced into the cast layers.
- the amount and color of the dyes and / or pigments is adjusted depending on their extinction so that when you break the security element is a clearly visually recognizable color change. In this case, an exact dosage is preferred.
- the dye and / or pigment may be e.g.
- soluble substances are, in particular, substances such as the above-mentioned dyes having a solubility of at least about 1 gram of dry matter in 1 liter of solvent (eg water, aqueous solutions, aqueous preparations or organic solvents or solvent mixtures) at 20 ° C, especially at least about 5 grams of dry matter in 1 liter of solvent at 20 ° C.
- solvent eg water, aqueous solutions, aqueous preparations or organic solvents or solvent mixtures
- Dyes can also be incorporated in the form of a loaded latex. This is a latex with a water-insoluble, organic soluble dye corresponding to that for photographic color couplers in Res. Discl. 38 957 (1996), p 623 impregnated or loaded. Dyes and / or pigments may also be incorporated in dispersed form. This method of incorporation is preferred when using insoluble dyes or pigments.
- dyes inorganic or organic dyes can be used from the known classes of dyes, such as synthetic and natural dyes, food dyes, indicator dyes, dyes from the field the photography, the printing process, the textile dyeing.
- dyes such as synthetic and natural dyes, food dyes, indicator dyes, dyes from the field the photography, the printing process, the textile dyeing.
- azo dyes nitro dyes, indigo dyes, metal complex dyes, phthalocyanine dyes, phthalic acid dyes, triphenylmethane dyes, anthraquinone dyes, azomethine dyes, oxonol dyes, polymethine dyes, cyanines, merocyanines, styryl dyes, photochromic and thermochromic dyes, fluorescent dyes, luminescent dyes, phosphorescent dyes, photographic color couplers Developers prepared by oxidation yellow, purple or cyan dyes. Color couplers are known from RD 37254, Part 4 (1995)
- one or more dyes are formed before, during or after degradation in the polymer system. This is e.g. possible with dye precursors which, under certain conditions, e.g. become colored or change color at a particular pH or oxidative or reductive milieu. There are e.g. Indicator dyes or leuco dyes are suitable. Contain one or more layers e.g. Color couplers, the dyes in the layer by digestion with, for example, a p-phenylenediamine derivative and an oxidizing agent such as ammonium or potassium peroxodisulfate can be produced. This process is known in color photography as color coupling.
- the films according to the invention can preferably be used. These methods are described, for example, in RD 36544 (1994), RD 37038 (1995) and RD 38957 (1996).
- the film according to the invention also preferably contains at least one colorless and / or pigment-free layer, for example all or in combination as cover layers), intermediate layers, adhesive layer or adhesive layer (s), the cover layer in particular as a protective layer, eg against Scratching and / or protecting against touching eg with wet fingers.
- additives to the protective layer are suitable spherical, hard polymer particles having particle diameters of about 1 to about 10 microns, so-called spacers, and metal oxide nanoparticles such as silica sols, especially in combination with silicone emulsions.
- Such layers in particular the cover layers and intermediate layers, are preferably likewise degradable in a layer-selective manner.
- a sequence of dye-containing and dye-free layers is advantageous in order to enable better recognition of the different colors during the degradation of the layers.
- the material contains one or more water-soluble intermediate layers, which may be colorless or colored.
- Such intermediate layers contain in particular water-soluble natural or synthetic film-forming high molecular weight products such as cellulose derivatives, polypeptides, polyvinyl alcohol, polyvinylpyrrolidone, polyacrylamide, polyacrylic acid, maleic acid copolymers, polystyrene sulfonic acid or salts of said acids.
- water-soluble materials are, in particular, layers or materials having a solubility of at least about 1 gram of dry matter in 1 liter of water at 20 ° C, in particular of at least about 5 grams of dry matter in 1 liter of water at 20 ° C.
- individual dye-free intermediate layers contain pigments, in particular white pigments or black pigments such as, for example, barium sulfate, titanium dioxide or carbon black.
- pigments in particular white pigments or black pigments such as, for example, barium sulfate, titanium dioxide or carbon black.
- the intermediate layers preferably dry film thicknesses of about 0.5 to about 25 .mu.m, preferably from about 1.5 to about 10 microns. Layer thicknesses of about 2 to about 5 ⁇ m are particularly preferred.
- the security element consists of a transparent, in particular clear carrier on which a Polymer system of the invention is preferably applied on one side and wherein this structure is applied to a further carrier and in particular so that the polymer system is disposed on the side facing away from the other carrier of the clear carrier.
- the further carrier is preferably reflective, for example white, and in particular carries any image information.
- the security element consists of a polymer system of the invention, which is applied on one side (on the front side) on a clear support, in particular a cellulose acetate film, and the back of the clear support on the front side (the image side) of a conventional image with reflective support, such as a paper image, is laminated.
- a clear support in particular a cellulose acetate film
- the image or the image information can be generated by hand, applied with conventional printing or made by photographic means.
- the adhesion of the clear on the other carrier can be achieved by known adhesive or adhesive layers, for example by a cyanoacrylate adhesive layer.
- the layer-selective degradation is preferably at least one degradation or accelerating chemical or biological substance (hereinafter also referred to as degradation substance), in particular an enzyme, used.
- the degradation substance is preferably soluble in an aqueous solution or can be prepared as an aqueous preparation and can be made available, for example, in solid form or as an arbitrary preparation for use. In a preferred form, it is provided as a ready-to-use liquid preparation, especially as an aqueous preparation, or so as to be ready for use simply by adding tap water or pure water.
- water-soluble films, water-soluble capsules, microcapsules or water-insoluble porous papers are used which contain the degradation substance. Upon contact with a suitable liquid, particularly tap water or pure water, these materials release the degradation substance for the stratified degradation of the polymer system of the invention.
- the degradation of the layers of biological material is preferably done using enzymes. It uses enzymes that are adapted to the biological material.
- enzymes that are adapted to the biological material.
- amylases or cellulases and, in the case of proteins, proteases such as pepsin, papain, trypsin, chymotrypsin, thrombin, subtilisin.
- the enzymes are preferably used in aqueous solution.
- the solution may additionally contain acids, bases or buffer substances in order to set a desired pH for the degradation. Depending on the pH, the rate of degradation can be adjusted.
- other additives such as solvents, surfactants or other surface-active compounds may be added to the solution.
- At least one degradation substance in particular an enzyme, is preferably applied together with at least one binder to the front and / or back of the polymer system according to the invention, whereby this degradation substance is also to be understood as meaning a substance mixture. or a precursor that can trigger or accelerate the degradation only after appropriate activation or modification.
- the binder used together with the degradation substance is preferably not or slowly degradable by this degradation substance, so that it does not interfere with the production and storage of the security element of the invention to a disturbing degradation.
- the binder and the degradation substance are usually dissolved together in an aqueous solution and applied to the material by a suitable application process or coating process. In an advantageous embodiment, they are also used with the above-described preferred for the other layers. applied coating method applied. If it is ensured that the layers do not or do not substantially intermix during the pouring and the material is dried quickly after the coating, the layer containing this substance can also be applied simultaneously with the faster degradable layers.
- the material is moistened or provided on the back with an adhesive layer and then applied at least one degradation substance, in particular an enzyme, in pulverized form on the surface of the material and optionally dried.
- at least one degradation substance in particular an enzyme, in pulverized form on the surface of the material and optionally dried.
- other substances may be included.
- the security element is on and / or in the security element, for example on and / or in the layers and / or on and / or in the carrier film image information and / or introduced, wherein it is in the context of the present invention can be any visual information, in particular image information that differs from a homogeneous color surface.
- image information particularly suitable within the scope of the invention are, alone or in any combination, at least one raster image, a drawing, a photographic image, a signature, a brand name, an image mark, a protected design or information protected by copyright, a font , a code, such as a bar code, a data matrix code, also referred to as 2-D code, an RFID code or a 3D code, a hologram or other optically readable information, in particular of a water-insoluble material, particularly preferably a water-insoluble Dye or pigment.
- the image information can be done manually and / or by any printing method such as inkjet printing, laser printing or screen printing, it is advantageous to use water-resistant imaging substances and inkjet printing is preferred.
- the information applied in this way is preferably retained after the degradation.
- the image information can be special also be colorless and transparent, or the same dyed as the not yet degraded security element and thus be visible only during the degradation.
- the pressure and / or the manual application are possible at any time of the production of the security element, for example on the untreated support, on the support with at least one substrate layer and / or after each casting process, in particular after drying.
- a color is used for the printed image, as it is also used for the degradable layer dressing.
- the printed image will only become recognizable or readable during dismantling.
- a yellow, a magenta and a cyan dye in the same optical densities can be used in the degradable part of the material in different layers to produce a black color impression and the layers are then provided with a black print image or code.
- the code is only readable in this embodiment after dismantling.
- the material can be provided with an unreadable coding.
- the code, or at least parts of it is readable even before dismantling, eg a barcode for logistical purposes or a code containing information about the security element of the invention.
- the printed image of the code is applied with a different color compared to the rest of the security element of the invention.
- the security element according to the invention contains further non-degradable layers or printed images between the carrier and the degradable layers. These layers are preferably colored and provided with ingredients. For example, between the carrier film and degradable layers further non-degradable layers can be incorporated with light-bleachable dyes, as described in German Patent Application DE 19951736 Al.
- the security element of the invention contains in a preferred embodiment further known security features, such as embossing, watermarks, use of special hard to access colors, introduced security thread, high pressure relief, microprint, microembossing, fine negative pressure, transparency register, numbering, Mstik, holograms, or other known security features.
- the material comprises at least 2 superimposed lattices at a suitable distance such that moire patterns result during bending, as described in European Patent EP 950 542 B1, the complete disclosure of which is hereby incorporated by reference, in particular paragraphs [0006] to [0012] and the claims.
- the invention further relates to products and in particular optionally printed or embossed packaging materials, security strips and stickers comprising a security element according to the invention.
- the material according to the invention can be used to authenticate products as such, as an element of packaging or as part of instructions, data sheets, leaflets and the like.
- the material according to the invention is glued or mechanically bonded to the packaging or directly to the sales product.
- pieces of film made of the material according to the invention can be blistered together with medicaments.
- adhesive films or adhesive tapes made of the material according to the invention can be used for packaging of sales products.
- the security element itself contains no degradation substance
- the security element and the degradation substance can be accommodated and sealed, for example, in the same or in separate cavities of the blister. In a particularly advantageous embodiment, they are housed in the same cavity and the cavity is large enough that just just the cover over it removed and water must be filled to the degradation and thus the color change of the safe cause material. The color change is particularly easy to recognize when it is slightly tilted and / or wiped with a suitable device or just a finger over the polymer system.
- the material After drying, the material is printed with an inkjet printer with water-insoluble black ink.
- XOF-3 polyesters of adipic acid, neopentyl glycol and isodecanol (viscosity 4000-5500 niPas, OH number ⁇ 15 mg KOWg, acid value ⁇ 2 mg KOH / g)
- a 1 cm 2 piece of the film 1 is digested in a 0.5 wt .-% aqueous trypsin solution at 25 ° C for 5 minutes.
- the colors appear black (before the digestion), red, purple and then white.
- the black, printed image is preserved and appears in chronological order on the red, purple and white background.
- a 1 cm 2 piece of the film 1 prepared according to Example 1 is coated on the back with 0.1 ml of a solution of 20 g of trypsin and 100 g of polyvinylpyrrolidone K 30 in 1 liter of water and then dried.
- the 1 cm 2 piece of film is digested in 0.5 ml of water at 25 ° C for 7 minutes.
- the colors appear black (before the digestion), red, purple and then white.
- the black printed image is preserved and appears in chronological order on the red, purple and white background.
- a film is prepared with reduced amounts of dye. Subsequently, a bar code is printed on a mkjet printer with waterproof black ink. The bar code can be recognized on a gray background.
- a 1 cm 2 piece of the film is digested in a 0.5% strength by weight aqueous trypsin solution at 25 ° C. for 5 minutes.
- the bar code appears successively on gray (before the digestion), red, purple and white background.
- a film material is produced as described in Example 1, with the difference that instead of the PE paper, a cellulose acetate film is used. Subsequently, the front side of a photographic print is laminated with the back side of the coated cellulose acetate film using a cyanoacrylate adhesive so as to obscure the image. functional test
- a 1 cm 2 piece of the laminate is digested in a 0.5% by weight aqueous trypsin solution at 25 ° C for 5 minutes.
- the picture appears first in time through a red, then a purple filter layer. After that it can be recognized unaltered on a white background.
- a color photographic recording material is produced, wherein the blue-sensitive layer (layer 2) is interchanged with the green-sensitive layer (layer 4). Exposure through a negative color photographic image and subsequent photographic processing produces different cyan, crimson and yellow numbers in the material.
- This material is then printed using an inkjet printer using water-based ink, further blue-green, purple and yellow numbers.
- Example 6 (with additional security feature) As described in Example 1, a film is prepared, which additionally contains as a further security feature in layer 7 30 mg of a commercially available homodisperse, spherical polymethyl methacrylate having a particle size of 3.5 microns. functional test
- Example 1 The functional test is carried out as described in Example 1. Then we examined the decomposition solution with the light microscope.
- the Polymethyhnethacrylat- particles are well recognized as spherical particles.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE112009002022T DE112009002022A5 (de) | 2008-06-14 | 2009-06-10 | Mehrschichtiges abbaubares Polymersystem als Sicherheitselement |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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DE102008028491 | 2008-06-14 | ||
DE102008028491.2 | 2008-06-14 | ||
DE102009004739A DE102009004739A1 (de) | 2008-06-14 | 2009-01-15 | Mehrschichtiges abbaubares Polymersystem als Sicherheitselement |
DE102009004739.5 | 2009-01-15 |
Publications (2)
Publication Number | Publication Date |
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WO2009149702A2 true WO2009149702A2 (de) | 2009-12-17 |
WO2009149702A3 WO2009149702A3 (de) | 2010-02-18 |
Family
ID=41317919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/DE2009/000818 WO2009149702A2 (de) | 2008-06-14 | 2009-06-10 | Mehrschichtiges abbaubares polymersystem als sicherheitselement |
Country Status (2)
Country | Link |
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DE (2) | DE102009004739A1 (de) |
WO (1) | WO2009149702A2 (de) |
Citations (4)
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US5290068A (en) * | 1989-07-05 | 1994-03-01 | Nocopi International Ltd. | Document security method and system |
GB2286044A (en) * | 1993-12-23 | 1995-08-02 | Marconi Gec Ltd | Plurality of labels |
WO2003097858A1 (de) * | 2002-05-17 | 2003-11-27 | Henkel Kommanditgesellschaft Auf Aktien | Identifizierungsverfahren zum produktschutz |
JP2006011050A (ja) * | 2004-06-25 | 2006-01-12 | Nec Tokin Corp | 浸水検知シールとそれを用いた電池パック及び携帯通信機器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3002287A1 (de) | 1980-01-23 | 1981-07-30 | Agfa-Gevaert Ag, 5090 Leverkusen | Mehrwertige metallkationen enthaltende anionische mischpolymerisate und ihre verwendung in fotografischen materialien |
FR2654445B1 (fr) * | 1989-11-14 | 1995-04-28 | Arjomari Prioux | Papier de securite comportant un nouveau fil de securite reagissant a la falsification. |
DE19804123A1 (de) | 1998-02-03 | 1999-08-05 | Agfa Gevaert Ag | Inkjet-Tinte |
DE19817105A1 (de) | 1998-04-17 | 1999-10-21 | Agfa Gevaert Ag | Fälschungssicheres Dokument |
DE19843057A1 (de) | 1998-09-19 | 2000-03-23 | Agfa Gevaert Ag | Farbfotografisches Material |
DE19951736A1 (de) | 1999-09-15 | 2001-03-22 | Agfa Gevaert Ag | Strahlungsdetektionsmaterial |
DE10232570A1 (de) * | 2002-07-18 | 2004-03-04 | Agfa-Gevaert Ag | Identitätskarte |
DE102006012732A1 (de) | 2006-03-17 | 2007-09-20 | Giesecke & Devrient Gmbh | Gitterbild |
-
2009
- 2009-01-15 DE DE102009004739A patent/DE102009004739A1/de not_active Withdrawn
- 2009-06-10 DE DE112009002022T patent/DE112009002022A5/de not_active Withdrawn
- 2009-06-10 WO PCT/DE2009/000818 patent/WO2009149702A2/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5290068A (en) * | 1989-07-05 | 1994-03-01 | Nocopi International Ltd. | Document security method and system |
GB2286044A (en) * | 1993-12-23 | 1995-08-02 | Marconi Gec Ltd | Plurality of labels |
WO2003097858A1 (de) * | 2002-05-17 | 2003-11-27 | Henkel Kommanditgesellschaft Auf Aktien | Identifizierungsverfahren zum produktschutz |
JP2006011050A (ja) * | 2004-06-25 | 2006-01-12 | Nec Tokin Corp | 浸水検知シールとそれを用いた電池パック及び携帯通信機器 |
Also Published As
Publication number | Publication date |
---|---|
DE112009002022A5 (de) | 2011-05-26 |
DE102009004739A1 (de) | 2009-12-17 |
WO2009149702A3 (de) | 2010-02-18 |
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