The product that is reusable substrates, providing signs of unauthorized exposure to


C09F3/02 - as a by-product in the paper-pulping process

 

The product is especially useful for applications with valuable, reusable substrates are not damaged when removing them from the product. The product that is reusable substrates, providing signs of tampering on it, contains (a) the film is effective in short-term pressing of glue or tape, covered effective at short-term pressing of the adhesive to be removed without taking the cohesive fracture from the surface of the substrate, for example with a car windscreen, by stretching the film or tape, and (b) at least one damageable layer, in which you try to remove the product from the surface of the substrate is manifested cohesive or interlayer destruction. 3 S. and 11 C.p. f-crystals, 1 tab., 3 Il.

The technical field to which the invention relates the Present invention relates to indicate unauthorized exposure to products with a coating of glue, effective at short-term pressure.

The background to the invention For visual evidence of tampering have been developed a variety of products with a coating of glue, bonding with pressure, such as etiketi in the form of tightly bonded to the substrate surface residue products. Such products and their residues can be removed only with the aid of solvents and / or mechanical scraping devices that may cause damage to the substrate surface.

Thus, for valuable substrates (i.e., not only once, but repeatedly used substrates, including automotive windshields) it is desirable to develop a product that long-term would indicate unauthorized exposure, when an attempt is made to remove the product from the substrate, but the removal of which would not remain any residue or remained a residue that can be removed without the use of solvents or mechanical devices. This product should have a sufficiently good adhesion to the substrate to firmly hold it in normal conditions of use, and fairly good ability to provide signs of tampering on it, so that the product cannot be moved (e.g., another vehicle).

Summary of the invention Briefly speaking, on the one hand, this invention is a product, providing signs of tampering at him, and for ispolzovalsya film or tape covered with glue, effective at short-term pressure to be removed without taking the cohesive fracture from the surface of the substrate (for example, with a car windscreen) through its extension, and (b) at least one damageable layer, in which you try to remove the product from the surface of the substrate is manifested cohesive or nutricline destruction. Preferably component (b) contains trademarks and / or holographic layer, and the component (a) is a self-adhesive film or tape, covered effective at short-term pressing of the adhesive, which can be removed by pulling it at an angle of 45oto the surface of the substrate. In addition, the product preferably includes the additional reflective layer.

The characteristics of the product according to the invention, indicating the unauthorized impacts are provided by the inclusion of the damaged layer, in particular a layer, destroy completely or partially or permanently deformable. Cohesive strength of this layer (component (b)) is less than the bond strength between the component and the substrate, and the strength of adhesive joints is less than the cohesive strength of the component (a). Thus, the product remains on removal of the product from the substrate leads to cohesive or vnutrisloinogo destruction of the component (b), followed by separation of the component (b) from the component (a). Component (a) remains virtually intact and bonded to the surface of the substrate. As a result, the product provides a sufficient indication of tampering on it that does not allow you to move the product to another substrate.

Although the product of the present invention, providing signs of tampering on it, you can use on a variety of substrates, it is particularly suitable for use with substrates that are not disposable and are often interchangeable, but are repeatedly or for a long time used precious substrates. The attempt to remove a product from the substrate activates its pointing to unauthorized impact signs, and part of the product remaining on the substrate (after activation), can be easily and completely removed without the use of chemicals (in particular, organic solvents) and mechanical devices (in particular, knives or scrapers). The result eliminates this a known issue, as damage to the substrate. Thus, the product is particularly useful as a protective sticker for the windscreen, bumper or nomemo the e as protective stickers for identity cards and other documents.

On the other hand, the present invention also provides a substrate that carries the product, signs of tampering on him.

A brief description of the drawings the above features, aspects and advantages of the present invention may best be understood, after reading the following description and appended claims and drawings.

In Fig.1 and 2 show cross sections of two embodiments of the product according to the present invention.

In Fig.3 shows the cross-section shown in Fig.2 embodiment, after attaching it to the substrate and subsequent manifestations of his points to unauthorized impact properties when you try removing it from the substrate.

These are not within the scope idealized drawings are intended for illustration only and are not restrictive.

Detailed description of the invention item Numbers: 10 - product, providing signs of tampering on him, 20, 40 - efficient(e) in case of a short pressing of the adhesive(s), 30, 50, 55 - damageable layers
60 - remove the cover with a picture,
70 - primer,
80 - reflective layer,
90 - substrate interface.

Component (a): film or tape with the living signs of tampering on it, it is best to imagine referring to the accompanying graphic material, where Fig.1 and 2 show examples of the implementation of articles 10 according to the present invention, in these examples, the component (a) is a ribbon with double coating. Tape with double coating includes a base 30, at least a portion of the first main surface to which applied is effective for short-term pressing of the adhesive 20 and at least part of the second main surface which caused effective at short-term pressing of the adhesive 40. Depending on the properties of the substrate and the component (b) is effective in short-term pressing of the adhesives 20 and 40 can be the same or different in composition. In at least some embodiments of the invention are effective in the short-term pressing of the adhesives are preferably chosen so that the adhesion to the substrate is greater than the adhesion strength was greater adhesion between the components (a) and (b). In another case, the film is effective in short-term pressing of glue or even tape with one layer of coating is effective in the short-term pressing of the adhesive with the substrate which can stick to the component (b)) can be used instead of tape with double p what with the corresponding values of adhesion strength for a particular application of the product.

For use in the manufacture of products according to the present invention suitable tape or film coating is effective for short-term pressing of the adhesive, which can by stretching to remove without cohesive fracture from the surface of the substrate. Useful for the present invention adhesives, effective at short-term pressure, are those of acrylic, block-copolymer, rubber, poly(alpha-olefin) glues and adhesives based on silicone polymers, which have a sufficiently good adhesion to the substrate to provide adhesion, which under normal conditions of use, and sufficient elongation and cohesive strength (by themselves and/or in combination with base) that allows you to completely remove the adhesive to the substrate by stretching. Generally preferred are acrylic glues and adhesives based on silicone polymers due to their light transmission characteristics (and in a more preferred embodiment, the transparency), of which more preferred are acrylic adhesives, effective at short-term pressure.

The layer(s) is effective for short-term pressing of the adhesive may optionally contain one or more additives, t and, the composition of which depends on the specific application.

Suitable bases for effective during short-term pressing of the adhesive include both elastic and inelastic polymer film (preferably translucent film, and more preferably a transparent film with good compliance (with the corresponding young's modulus that allows you to stretch them manually) and the tensile strength, allowing you to remove the tape from the surface of the substrate by stretching manually and without damaging the basis for removal. Examples of suitable polymeric films are polyolefins, such as polyethylene, polypropylene and polybutylene; vinyl polymers, such as polyvinyl chloride and polyvinyl acetate; acrylic polymers; silicone polymers; natural or synthetic rubbers; polyurethanes and mixtures of the listed compounds. Can also be used such copolymers as a copolymer of ethylene and methacrylate, a copolymer of ethylene and vinyl acetate, a copolymer of Acrylonitrile, butadiene and styrene, a copolymer of ethylene and propylene and copolymers (such as styrene-isoprene-styrene (SIS) or styrene-ethylene-butylene-styrene (SEBS)). Preferred are polyolefins, especially polyeste, low-density polyethylene and copolymers SIS and SEBS. Most preferred is a linear low density polyethylene.

If necessary, the base can be processed or the composition of the base can be modified to improve its adhesion to effective in the short-term pressing of the adhesives. For example, the base may be either processed by corona discharge or electron beam, or covered improving the adhesion composition, or, alternatively, may contain added compounds or chemical groups, improving the adhesion. The base may also contain other additives such as fillers, substances to improve adhesiveness or plasticizers.

Preferred for use as component (a) are those tapes or film coating is effective for short-term pressing of the adhesive, which can be cleanly removed from the substrate by pulling them in the direction essentially parallel to the surface of the substrate. Such tapes and films are described in particular in DE 3331016 (Beiersdorf AG), U.S. patent 4024312 (Karpman) and U.S. patent 5516581 (Krekel and others). In DE 3331016 described adhesive film containing effective at short-term pressing of the adhesive from blockcopolymer with a substance to improve the adhesive strength, decreasing tensile, and attitude strength tear strength tear 1:2 or greater. In U.S. patent 4024312 described tape containing effective at short-term pressing of rubber glue or effective for short-term pressing of the adhesive from blockcopolymer with a substance that increases the stickiness, and the basis of vysokochetkogo and elastic blockcopolymer different relative elongation at rupture of at least about 200% and a modulus of viscoelasticity at 50% elongation of not more than approximately 2000 pounds-per square inch (13,8 N/mm2).

Especially preferred for use as component (a) is a disposable adhesive tape described in U.S. patent 5516581. This tape contains visakorttini and practically non-resilient base and the layer is effective for short-term pressing of the adhesive. The Foundation has a tensile strength that is high so that the base is not destroyed when you remove the tape from the surface of the substrate (in particular, the tensile strength is preferably equal to at least about 4300 pounds-per square inch (29,6 N/mm2), more preferably at least about 5300 pounds-per square inch (36,5 N/mm2), and most preferably about 6,300 pounds-per square inch (43,4 N/mm2). The basis and the lo 350-700%), when the elastic recovery after stretching is less than about 50% (preferably less than about 30%, more preferably less than about 20%) and young's modulus of at least about 2500 lbs/sq. inch (17,2 N/mm2) (preferably at least about 3000 pounds-per square inch (20.7 N/mm2), but less than approximately 72500 pounds-per square inch (500 N/mm2) (preferably, less than approximately 50,000 pounds-per square inch (345 N/mm2), more preferably about 5,000 to 30,000 pounds-per square inch (34,5-207 N/mm2)). Effective at short-term pressing of the adhesive is preferably visokoetazhni, is not separated from the base when the stretch and has more cohesion than adhesion to any suitable substrate. After attachment to the substrate adhesive tape tightly grips with it, but can easily be removed without damaging the substrate by simply stretching it preferably at an angle of approximately 45oto the surface of the substrate, more preferably in the direction almost parallel to the surface of the substrate, for example an angle of less than approximately 35o(preferably less than about 30oand more preferably less than about 10o).

Component (b): susceptible(s) layer(of him, best understood by referring to the accompanying graphic material, Fig.1 and 2 which show examples of the implementation of articles 10 according to the present invention, in these examples, the component (b) containing at least one damageable layer, bonded to the component (a) using effective when short pressing of the adhesive 40. In the example shown in Fig.1, component (b) is damaged layer 50 (paper layer, which can be further provided with the put a picture of the removed coating). In Fig.2 shows a preferred embodiment of the product 10 of the present invention, in which component (b) consists of damageable layers 50 (marks containing paint) and 55 (holographic foil).

Typically, the damaged layer has limited cohesive strength and is the weakest layer in the multilayer structure of the product. Therefore, this layer is a fixed place of destruction of the product when you try to remove the product from the substrate. Damageable layer may contain fragile material, destroyed in an unauthorized impact on the product (for example, such a metallic or non-plated holographic film, as the film described in EP 253089 is relat, optionally containing ceramic microspheres); paper (for example, as shown in Fig.1), inner strength and sheet thickness are selected so that upon removal of the product is disturbed interlayer integrity of the paper layer; signs (for example, containing the paint, as shown in Fig.2) introduced into the inner layer by any known method, for example by transfer or direct printing, such as printing by thermal transfer, Crassostrea printing, laser printing, flexography, gravure and screen printing, and the layers of any other type, which can break down (fully or partially) or permanently deform when attempting to uninstall the product. Such layers may, for example, include hot melt adhesives, effective at short-term pressing of the adhesive and(or) irreversibly deformable polymer film. The preferred translucent (preferably transparent) damageable layers.

Preferably, the product according to the present invention includes a holographic film (as damageable layer), for example, a film containing structured sublayer and an optional reflective sublayer. Structured sublayer can be obtained in several hot to be made of such materials, as polymethylmethacrylate (emission spectra obtained for pure), nitrocellulose or polystyrene. Structured sublayer may include a microstructured relief pattern constituting the holographic image or an image obtained using a diffraction grating in the form of logos or images that reflect light. In one example implementation embossed microstructured sublayer can be performed by bringing the material from which made the sublayer in contact with the non-stamp for stamping having a microstructured relief pattern, in conditions of heat and pressure. In another case, a structured sublayer may be fabricated using other suitable way, such as radiation curing of materials such as urethane, epoxy, complex polyester and acrylic monomers and oligomers, which include photoinitiator through the fill shape snap with microstructured relief pattern and subsequent radiation curing.

Optional reflective sublayer can be applied to structured sublayer or stamping, or after. Preferably the indicator predominatley reflective sublayer essentially transparent and colorless. Illustrative examples of suitable for the manufacture of the reflective layer materials are, inter alia, bismuth trioxide, zinc sulfide, titanium dioxide and zirconium oxide described in U.S. patent 4856857 (Takeuchi and others). Can also be used less transparent material such as thin aluminum or silver reflectors or reflectors with a picture. Reflective sublayer increases the reflection of light through a structured sublayer due to the difference of refractive indices between structured and reflective sublayer. Thus, if structured sublayer deposited reflective sublayer, structured holographic image is better visible to the naked eye, and if necessary, glue or improving the adhesion of the coating can be applied directly on the structured sublayer without affecting the visibility of a structured pattern.

The product of the present invention may contain more than one damageable layer, as shown in Fig.2, which are used as signs, and holographic film, and effective in the short-term pressing of the adhesive 40 can also be used as a damaged layer, if it is selected to provide low Koenig, is quite complicated and depends on various parameters, in particular the elasticity or the fragility of the different layers, the tensile strength of the materials used, the adhesion between adjacent layers, thickness of layers and drawing all choppy layers, and the direction of removal, angle, magnitude of force, speed and temperature during removal of the product. Thus, in some cases, removal of the product from the substrate can lead to tearing in places other than the pre-selected damageable layer (or layers) of the product, or gaps not only in the damaged layer, but in other places.

However, in the General case is destroyed damaged layer (s) of the product, thus ensuring a fatal sign of tampering on it. The process of breaking up can be better understood by referring to Fig.3, which is shown in the cross section a preferred embodiment of the product shown in Fig.2, after application to the substrate 90 and the subsequent manifestations signs tampers with, when you try to remove the product from the substrate.

Additional components
In addition to the damageable layers 50 (marks) and 55 (holographic foil) example implementation sodalime floor 60, primer coating 70 and the reflective layer 80. Applied in the form of the figure removed the cover 60 (which may be made of any known materials, such as compositions based on organosilicon compounds, fluorinated chemical compounds, waxes and polyvinyl alcohol, and to have one of the famous drawings) and a primer coating 70 (which may be selected from known primer and caused one of the known methods, such as described above for application to the base) intended to create areas of greater and lesser adhesion holographic film 55 (50 marks) to the underlying reflective layer 80. Thus, when you try to remove the product from the substrate of the holographic layer with signs destroyed in such a way that part of the film and characters remain linked with the component (a) (glued to effective in the short-term pressing of glue 40), and other parts of the film and characters remain coupled with the reflective layer 80. The relative sizes and gaps between parts, respectively, with the remaining component (a) and with retroreflective layer may vary with the nature of the figure (the coating to be removed with a picture) and the amount of cover is the product of the present invention contain light reflective layer 80, preferably containing microparticles or cube corner elements. For example, reflective layer, as described in U.S. patent 2407680 (Palmquist and others ), may contain a closed monolayer of glass microspheres inside their separating polymer, such as polyvinyl butyral or a complex of the polyester. Thus, separating the polymer attached to the microspheres. Under this separating polymer posted by reflective sublayer, which may include an opaque material, such as silver, aluminum, chromium, Nickel or magnesium, or transparent reflective materials with high refractive index, such as zinc sulfide, or a multilayer reflectors, such as those described in U.S. patent 3700305 (Bingham). Thus, the light that enters the reflective layer, focuses glass microspheres passing through separating the polymer and is reflected by reflective sublayer back through separating the polymer and glass microspheres in the direction of the observer. Retroreflective layer may further comprise a sublayer in the form of a substrate on which may be printed, but not necessarily, a thermally activated or effective for short-term pressing of the adhesive to improve the adhesion of the spheres. In this embodiment, glass microspheres can be plotted on this link sublayer, and then on the glass microspheres may be applied between their polymer. Link sublayer for the microspheres may contain a dye (including black), which makes retroreflective layer color in normal lighting and gives it a different color, in particular silver, in the reflected backward light. This is described in detail in U.S. patent 2407680 (Palmquist and others). The reverse side of the microspheres may be secured in any suitable protective material or sealant.

In another case, a reflective layer 80 instead of glass microspheres and polymer contains a lot of retroreflective cube corner elements. Embossed cube corner elements can be made from materials such as vinyl, polycarbonate or acrylate, and radiation-cured cube corner elements are made of materials such as urethane, epoxy, complex polyester and acrylic oligomers and monomers. Usually cube corner elements have three mutually perpendicular surfaces with an area of 1.910-3mm2- 0.1 mm2. Retroreflective kubiri appropriate temperature and pressure. Items can also be obtained by applying a radiation curable polymer on the original shape, and coating film with sufficient pressure and radiation curing polymer.

Retroreflective cube corner elements may further comprise a reflective coating, which may be made of the same materials as described above are used for the manufacture of retroreflective material containing microspheres. This coating is usually applied to the back surface of the cube corner elements. The reflective coating can be applied film of sealant or adhesive layer that does not violate svetovozvrascheniya. In addition, the retroreflective cube corner elements may be used without the reflective coating.

Holographic film and the light reflective layer can be bonded together using a binder layer. The materials suitable for the manufacture of the binder layer, apply primer materials (for example, a primer coating 70, shown in Fig.2 and 3) or in the form of coatings or films of adhesive materials, such as urethanes, olefins, vinyls, and acrylics. To connect these layers together binder Radiusy layer, and on film, and the reflective layer to their connection.

The binder layer may be made of heat-shrinkable material providing protection from unauthorized exposure to heat, because when exposed to heat sufficient heat-shrinkable material is deformed. The preferred material for the manufacture of heat-shrinkable binder layer is a polyolefin film.

At the interface between the holographic and retroreflective layers can be placed additional coating layer with a pattern (for example, applied in the form of the figure removed the cover 60 shown in Fig.2 and 3) improving or deteriorating adhesion. Particularly useful is the use of such a layer is patterned, whereby this layer is used next to the layer having the printed characters or a set of one or more holographic emblems (for example, holographic film 55 shown in Fig.2 and 3). When stratified by cover layer is patterned, a portion of the marks or logos(s) remains linked with each detached part.

In some places, particularly in the top layer with a pattern or patterns, may be applied to additional comingthrough inks or paints, visible in ultraviolet rays, or are using toners or dyes in the form of a drawing. These colorful characters are particularly preferred when printing in any location above the front surface of the retroreflective layer containing the colored binder microspheres sublayer. Under normal light colored (preferably black) binding microspheres sublayer hides colored signs, and is generally only visible hologram as the hologram lessen the visibility of color marks. However, in terms of svetovozvrascheniya color marks clearly visible on the background (preferably silver), and the hologram becomes invisible. Wide or narrow angular marks can also be performed in the retroreflective layer containing microspheres, for example, by laser processing, in General, are described in U.S. patents 4688894 (Hocart) and 4200875 (Galanos). Usually, when this method is used to form images in retroreflective materials with closed microspheres having an opaque reflectors, signs can be observed as in the ordinary illumination and the reflected backward light. The present invention includes the use of containing secret normal lighting but become visible only when the reflectivity. Thus, the signs are hidden until you have provided the conditions of observation in reflected backward light.

When developing a product attached for example, to the inner surface of automobile windshield, the preferred components used in addition to components (a) and (b) will be translucent materials (more preferably transparent components), especially when they are used in combination with the damage then retroreflective layer and a layer containing characters that should be visible outside the car. If this product uses a heat-sensitive, for example a thermoplastic, components, these components are preferably used in combination with a removable cover with a picture and a non-removable coating improving the adhesion primer.

The product of the present invention, providing signs of tampering may contain, optionally, at least one spacer (for example, the protection layer is effective for short-term pressing of the adhesive 20). This pad may be made of known materials, such as paper or polymer prisoners with short-term pressing of the adhesive can be separated from the strip). The product of the present invention can be produced by such conventional techniques as coating, laminating and / or transfer. The thickness of different layers may vary within a wide range depending on the number and nature of specific components, the particular application and the desired characteristics of the product.

Objectives and advantages of the present invention is illustrated below by examples, but it should be remembered that the invention is not limited to specific materials, quantitative characteristics, conditions and details provided in these examples.

Examples
Testing methods
Tests for adhesion when the peeling angle 180o
Adhesion when peeling, the force required for removal of the flexible sheet material with an adhesive coating on the test panel. Adhesion when the peeling is measured at a certain angle and at a certain speed removal. In the following examples, this force is expressed in Newtons per cm of width (N/cm) of the coated sheet. If not defined otherwise, the measured adhesion forces at the delamination represent the initial strength when peeling force within ODI extracts forces, which can be obtained by measurements.

Bond breaking (angle 180o) was measured according to the method PSTC-1 (Methods of test tape with effective at short-term pressing of glue, 9th edition, 1989, Deerfield, Illinois, USA). Strip (width of 1.27 cm) sheet material with an adhesive coating stuck to the horizontal surface of a clean test plate stainless steel, ensuring intimate contact of the two surfaces along the length of at least 12,7 see a Band stuck in a single pass of a dense rubber roller weighing 2 kg of the Free end of the strip with the adhesive coating was almost touching bent in the opposite direction for the formation of a two-layer strip, so the angle of removal of the strip was 180o. The free end of the strip was attached to the test dynamometer for measuring adhesion. The test plate of stainless steel secured in the grips of the testing machine for tensile, able to move the plate from the dynamometer at a constant speed of 30.5 cm/min readings of the dynamometer was recorded in Newtons as peeling of the tape from the glass surface. In the test report included data averaged over the range of readings at ispytanijami adhesion when the peeling was measured, as described above, except that the hardware configuration has been changed so that existing when the peeling force can be measured at different angles of separation. Glass test plate secured in the lower grips of the testing machine tensile in different configurations so that when the end of the strip with the adhesive coating was drawn using the second grip, placed opposite to the first band was cut out from the plate at different angles besides 90oand 180omost often used in the tests. The force required to separate the strips with adhesive coating from the plate, registered in the process tear strip along with elongation. The measurements were performed at angles of separation 0o, 45o, 90o, 145oand 180o.

Example 1.

On a sheet of photocopy paper size is 5 x 7 cm embossed dealt with drawing a checkerboard configuration removed the coating composition containing the copolymer organopolysiloxane and polyurea. The copolymer organopolysiloxane and polyureas obtained as the reaction product of the condensation of organopolysiloxanes with the diisocyanate and the extension Daminova chain and prepared as described in patents school who would separate the elements of drawing in the form of a checkerboard configuration had a size of 5 mm on each side. The coated paper in a drawing for 1 minute and dried at a temperature of 70oC.

Made of sheet material of a thickness of 1.5 mil (38 μm) and treated by corona discharge film of linear low density polyethylene (LLDPE), manufactured under the trade name of HMO 312,0 LLDPE Packaging, Scunthorpe, UK, coated on both sides is effective for short-term pressing of the adhesive, and then cut to the above paper sizes (5 x 7 cm). On one side of the film caused effective at short-term pressing of acrylic based adhesive solvent containing ternary copolymer itachinaruto (70 wt%), of methyl acrylate (22.5 wt.%) and acrylic acid (7.5 wt%). This adhesive having a characteristic viscosity of 0.7, contains thermoactivation crosslinker based bisimide. (Estimated adhesion when peeling the glue from the film made of polyethylene terephthalate with a thickness of 2 mils (50 microns) and for adhesion when the peeling angle 180oreceived a value of 5.6 N/cm). Using a knife device, the adhesive applied to the film of linear low density polyethylene and dried in an oven with forced convection to produce the final adhesive coating density of 40 g/m2. Then the floor.

The reverse side of a film of linear low density polyethylene coated organic solution is effective for short-term pressing of acrylic glue. The adhesive was prepared by combining two adhesive composition in the following weight ratio: 11.9 parts of adhesive composition And 30 parts of solid components), and 88.1 parts of the adhesive composition In 70 parts of solid components of the composition). (This adhesive using a knife device also covered with a film thickness of 2 mils (50 μm) made of polyethylene terephthalate to obtain after drying in an oven with forced convection final coating with a density of 10 g/m2and the amount of adhesion when the peeling angle 180o1.4 N/cm).

Adhesive composition And consisted effective at short-term pressing of acrylic glue, water-based, containing isooctadecyl and acrylic acid in a weight ratio of 95,5:4,5, which was prepared by the method of polymerization of the emulsion described in example 5 of U.S. patent 24906 (Ulrich). After polymerization, the final, effective at short-term pressing of acrylic adhesive recovered from the emulsion and dissolved in a mixture of heptane and propyl alcohol (80/20) to obtain a solution with a concentration of 2 is anomo in U.S. patent 3691140 (silver), using 98% of itachinaruto and 2% of ammonium acrylate. The microspheres were isolated from the final suspension, and then dispersed in heptane to form a dispersion of microspheres at a concentration of 8 wt.%.

Then, the surface of the above coated paper in the form of a pattern layered on the surface of the final film of linear low density polyethylene with a double coating, the carrier containing microspheres adhesive, to form a simple example of the implementation of the products of the present invention, indicating an unauthorized impact on him. The gasket of the complex polyester was removed from the product, and the final outdoor adhesive layer applied to the sheet double layer tempered shatterproof glass and tightly pressed manually. After 15 minutes attempted to remove the product from the glass substrate. The end product is slightly lifted and pulled at an angle of approximately 90oto the surface of the substrate. When this product was divided into two parts. One part remained attached to the substrate, and the other completely disconnected from it.

Remaining on the substrate part contained the first adhesive layer, a film, a second adhesive layer and arranged in a checkerboard pattern plots containing the coating. Completely separated part contained plotted in figure removed the coating and the remainder of the paper. In the survey it was established that the paper is separated on the one hand applied in a checkerboard pattern covering.

Remaining on the substrate portion removed entirely, taking her over the edge and pulling at an angle of 45oto the surface of the substrate. Part of stretching in the removal process, did not explode. Effective at short-term pressing of the adhesive, coupled with the substrate, gradually completely destroyed, and after remove any adhesive residue on the substrate were not found.

The set of the films of linear low density polyethylene with a double coating prepared as described above, and attached to a glass test plate. Obtained for different angles of the magnitude of adhesion when the peeling is shown in the table.

Example 2.

Rear, non-reflective, flexible retroreflective sheet material containing as reflective elements glass microspheres (manufactured under the trade name ScotchliteTMVP5500 Reflective Sheeting 3M company, St. Paul, Minnesota, USA), thermoluminiscence layered on opaque white film of al is osphradium the surface of the sheet coated solid polyurethane binder layer (manufactured under the trade name NeorezTMR960 company Zeneca Resins, Waalwijk, the Netherlands). The polymer composition is water-based inflicted grooved roller in the form of a coating and dried for 1 minute at a temperature of 80oTo obtain a thickness of approximately 4 μm. Then on the final binder layer embossed as described in example 1 caused plotted in figure remove the coating in the form of a chessboard described in example 1.

Then put in a picture of the removed coating method, screen printing struck a transparent paint solvent-based (manufactured under the trade name ScotchliteTMTransparent Ink 1900 (blue-violet) by 3M company, St. Paul, Minnesota, USA). The final paint coat has dried for 40 seconds at a temperature of 60oTo obtain a thickness of approximately 10 microns.

Then a film of linear low density polyethylene double coated as described in example 1, was glued to the laminate containing the reflective sheet, the binder layer is applied in the form of the figure removed the cover and the paint layer. The surface of the film carrier containing microspheres glue, glued to a layer of paint using a manual laminator at a temperature of 23oTo obtain the evaluation of polyethylene terephthalate was removed from the product, and the final outdoor adhesive layer applied to the sheet double layer tempered shatterproof glass and tightly pressed manually. After 15 minutes attempted to remove the product from the glass substrate. The end product is slightly lifted and pulled at an angle of approximately 90oto the surface of the substrate. The product could not be removed entirely. When this happened the gap interlayer structure, the resulting product was divided into two parts. One part remained attached to the substrate, and the other completely disconnected from it.

Remaining on the substrate part contained a film of linear low density polyethylene double coated and readily identifiable part of the ink layer corresponding to the areas of the removed coating. Completely separated from the substrate part contained the reflective sheet, the binder layer is applied in the form of the figure removed the floor and part of the ink layer corresponding to the areas where there was the coating to be removed. As a result, damaged layer of paint has provided a visual indication of tampering.

Part of the product, remaining glued to the glass substrate, and then removed entirely, taking her over the edge and pulling at an angle of 45the temporary pressing the adhesive, coupled with the substrate, gradually completely destroyed, and after remove any adhesive residue on the substrate were not found.

Example 3.

The front reflective surface of the sheet described in example 2, was coated solid polyurethane binder layer and the removed coating is patterned, as described in example 2. Then a thin transparent holographic film (manufactured by Crown Roll Leaf, Peterson, new Jersey, USA) was layered on the put a picture of the removed coating using a laminator (manufactured by the company Sallmetal, Rault, the Netherlands) at a temperature of 100oC. Holographic film contains remove the gasket from the complicated polyester, a structured layer on the basis of polymethylmethacrylate, reflector made of zinc sulfide with a high refractive index and a thin adhesive layer. After laminating a strip of a tough polyester deleted. Then on a thin transparent holographic layer by screen printing caused a continuous layer of transparent paint solvent-based (manufactured under the trade name ScotchliteTMTransparent Ink 1900 (blue-violet) by 3M company, St. Paul, Minnesota, USA). The final paint coat wysu the ku linear low density polyethylene double coated, described in example 1, was glued to the laminate containing the reflective sheet, the binder layer, remove the coating with a pattern, holographic film and the layer of paint. The surface of the film carrier containing microspheres glue, glued to a layer of paint using a manual laminator at a temperature of 23oWith to get products that provide signs of tampering on it. A protective film made of polyethylene terephthalate was removed from the product, and the final outdoor adhesive layer applied to the sheet double layer tempered shatterproof glass and tightly pressed manually. After 15 minutes attempted to remove the product from the glass substrate. The end product is slightly lifted and pulled at an angle of approximately 90oto the surface of the substrate. The product could not be removed entirely. When this happened the gap interlayer structure, the resulting product was divided into two parts. One part remained attached to the glass substrate, and the other completely disconnected from it.

Remaining on the glass substrate part contained a film of linear low density polyethylene double coated and readily identifiable part of a layer of paint and holographic film,trogatelnyi sheet, the binder layer is applied in the form of the figure removed the floor and part of the ink layer and the holographic film corresponding to areas where there was the coating to be removed. As a result, damaged layer of paint has provided a visual indication of tampering.

Part of the product, remaining glued to the glass substrate, and then removed entirely, taking her over the edge and pulling at an angle of 45oto the surface of the substrate. Part of stretching in the removal process, did not explode. Effective at short-term pressing of the adhesive, coupled with a glass substrate, is gradually destroyed, and after remove any adhesive residue on the substrate were not found.

The second product, providing signs of tampering at him, prepared as described above in example 3, was glued to a glass substrate and left therein at a temperature of 70oWith for a period of 40 days to simulate long-term exposure to heat on the windshield of the car. Attempts to remove the product has led to the destruction of the interlayer structure and stratification of the product, as described above. Tampers can be easily detected visually, as when removing damaged and holographers film of linear low density polyethylene with a double coating caused the same effective in the short-term pressing of acrylic adhesive. Glue contained a copolymer itachinaruto and acrylic acid in a weight ratio of 95,5: 4,5. To improve the adhesiveness to 100 wt. hours of copolymer added 25 wt. including highly stable polymer modified esterified rosin (manufactured under the trade name ForalTM85 Hercules, Rijswijk, the Netherlands). One surface of the film, which caused the adhesive coating is heavier, had a higher adhesion than the other. Coating on one surface (attached to the substrate) had a thickness of 100 μm. (For this adhesive coating deposited on a film of polyethylene terephthalate with a thickness of 2 mils (50 μm) determined the value of the adhesion when the peeling angle 180o7,5 N/cm). The adhesive coating on the opposite side of the film had a thickness of 50 μm. (For this adhesive coating deposited on a film of polyethylene terephthalate with a thickness of 2 mils (50 μm) determined the value of the adhesion when the peeling angle 180oto 4.0 N/cm).

Then finally formed film of a linear polymer of low density with a double coating stuck to the procedure described in example 3, the laminate containing the reflective sheet, the binder layer, remove the coating with a pattern, holographic film from the laminator at a temperature of 23oWith to get products that provide signs of tampering on it. The product was attached to a glass substrate. The process when you try to remove the product from the substrate was similar to the process described in example 3. Part of the product remaining on the substrate was removed, taking her over the edge and pulling at an angle of approximately 90oto the surface of the substrate. In the removal process was stretching remove parts of the product, but the gap was not observed. After removal of adhering to the substrate adhesive no adhesive residue on the substrate were not found.

Example 5.

Sheet with a thickness of 220 μm from blockcopolymer styrene, ethylene and a copolymer of butylene and styrene (SEBS), manufactured under the trade name KratonTMG-1657 Shell Chemicals, obtained by standard methods using a twin screw extruder. Finally shaped elastic sheet coated on both sides is effective for short-term pressing of rubber adhesive containing 100 wt. including synthetic blockcopolymer styrene, isoprene and styrene (manufactured under the trade name KratonTM1107 by Shell Chemicals), 129 mass. including increasing the stickiness of aliphatic polymer C5 (manufactured under the trade names trade the m ZonarezTMA25 company Arizona Chemicals) and 3 wt. including antioxidant (manufactured under the trade name IrganoxTM1076 by Ciba Geigy, Basel, Switzerland). On one surface of the sheet of blockcopolymer SEBS caused the glue layer thickness of 35 μm, and the other with the adhesive layer of a thickness of 19 μm. On a thicker layer of glue layered strip of a tough polyester with a silicone coating. Measured adhesion when peeling the adhesive coating on a substrate of stainless steel amounted to 6.8 N/cm (for a layer thickness of 19 μm) and 8.5 N/cm (for a layer thickness of 35 μm).

The final product in the form of a sheet with a double coating was subjected to lamination to obtain products that provide signs of tampering on it. For this purpose, the surface of the sheet with a thinner adhesive coating stuck to a layer of paint retroreflective laminate described in example 3. The laminate contained (in order) retroreflective sheet material, a solid bonding layer, the removed coating is patterned, thin holographic film and a continuous layer of paint. The gasket of the complex polyester was removed and the product is pressed against a clean glass plate. When you try to remove from the substrate product stratified so idelia, remaining glued to the substrate consisted of a sheet of blockcopolymer SEBS are double coated and placed in staggered sections of the layer of paint with a holographic film corresponding to areas where there was a deleted coating. Part of the product, completely separated from the substrate, contained retroreflective sheet material, a binder layer is applied in the form of the figure removed the floor and part of the ink layer and the holographic film corresponding to areas where there was the coating to be removed. Part of the product, remaining glued to the substrate, has been completely removed from the substrate, taking her by one edge and pulling it until it is fully separated from the substrate surface.

Example 6.

Repeated operation of example 5 except that as the basis for applying the adhesive layers used other elastomeric sheet. The sheet thickness of 50 μm made of translucent anisotropic elastic film containing 60 wt. including triple blockcopolymer styrene, isoprene and styrene (manufactured under the trade name VectorTM4111D company Deutsche Exxon Chemicals GmbH) and 40 wt. including polypropylene (density 0,905 g/cm3manufactured under the trade name PPH 7060S company Fina Chemicals, Belgium), proceratiinae polypropylene fibers, elongated in the plane of the sheet down to the canvas. Anisotropic elastic sheet is stretchable in the transverse direction of the fabric, but less tensile and elastic in the direction down the canvas.

Both the surface of the elastic sheet covered effective at short-term pressing of rubber adhesive described in example 5, and layered to that described in example 3 retroreflective laminate containing retroreflective sheet, a continuous bonding layer, the removed coating is patterned, thin holographic film and a continuous layer of paint. The layer is effective for short-term pressing of glue smaller thickness, deposited on a flexible basis, paid on a layer of paint retroreflective laminate. The resulting product, providing signs of tampering on it, attached to a glass substrate. When trying to remove the product from the substrate product was stratified. Part of the product, remaining glued to the substrate, has been completely removed from the substrate, taking her by one edge and pulling it until it is fully separated from the substrate surface.

Example 7.

In the manufacture of products, providing signs of tampering on it, instead of the film or sheet is sovremennom pressing glue (without adhesive). Applied opaque tape with synthetic rubber adhesive (manufactured under the trade name Power StripsTMBeiersdorf AG, Hamburg, Germany). The film is effective in short-term pressing of the adhesive differed homogeneity, and both the adhesive surfaces were applied protective strip. One of the strips were removed from the film, and on the resulting adhesive surface of the layered reflective laminate described in example 3, containing (in this order) retroreflective sheet, a continuous bonding layer, the removed coating is patterned, thin holographic film and a continuous layer of transparent paint.

The second protective strip removed from the resulting product, providing signs of tampering on it, and the product was attached to a glass substrate. After 15 minutes attempted to remove the product from the glass substrate. When this was broken interlayer integrity, and the product was divided into two parts. One part remained attached to the substrate, and the other completely disconnected from it. Remaining on the substrate part contained the film is effective in short-term pressing of the layer, a continuous layer of paint and holographic film, made in sahmat the second film in the form of a chessboard was visible, when the light reflected from the surface (completely separated parts of the product) at right angles. Separated from the substrate part of the product consisted of a retroreflective sheet material, a solid binder layer removed, coated in a checkerboard pattern, and holographic film, made in a checkerboard pattern in accordance with the areas where there was the coating to be removed. Remaining on the substrate part could be removed entirely, taking her by the special bench, made on one edge of the film is effective in short-term pressing of the adhesive, and pulling it at an angle 30oto the surface of the substrate.

Example 8.

Repeating the operations described in example 3, except that a film of linear low density polyethylene with a double coating is produced, causing the both sides of the film is effective in short-term pressing of the acrylic adhesive of the same composition. Glue contained processed to improve the adhesiveness of the copolymer itachinaruto and acrylic acid in a weight ratio of 95,5:4,5. To improve the adhesiveness to 100 wt. hours of copolymer added 25 wt. including highly stable polymer modified esterified rosin (manufactured under Tongli adhesive coating of the greater mass, had a higher adhesion than the other.

The product, providing signs of tampering on it, made, naslov finally formed film with double coating described in example 3 retroreflective laminate containing retroreflective sheet material, a solid bonding layer, the removed coating is patterned, thin holographic film and a continuous layer of transparent paint. To do this, the paint layer of the laminate was glued to the surface of the film with a double floor, which caused the adhesive layer is smaller mass. The final product was attached to a glass substrate. When you try to remove the product stratified. Part of the product, remaining glued to the substrate consisted of a film with a double coating and fragments of the layer of paint and holographic film. This part could be removed, taking her over the edge and pulling her to break the adhesive bond with the surface of the substrate.

Example 9.

Repeating the operations described in example 8, except that instead used as the base film of linear low density polyethylene used a sheet of low density polyethylene of a thickness of 28 μm and a density of 0.92 g/cm3(says Michael K. the substrate. When you try to remove the product stratified. Part of the product, remaining glued to the substrate consisted of a film with a double coating and fragments of the layer of paint and holographic film. This part could be removed, taking her over the edge and pulling her to break the adhesive bond with the surface of the substrate.

Example 10.

Repeating the operations described in example 3, except that instead of a flexible retroreflective sheet material applied film thickness of 2 mils (50 microns) polyethylene without additives. This film struck a solid bonding layer, the removed coating is patterned, thin holographic film and a continuous layer of paint described in example 3. The final product, providing signs of tampering on him, after attaching to the glass substrate is transparent. When you try to remove the product stratified. Part of the product, remaining glued to the substrate could be removed entirely by tension.

Example 11.

Repeating the operations described in example 3, except that instead of a flexible retroreflective sheet material containing as reflective elements, glass microspheres, primeramente (manufactured under the trade name Flexible Diamond GradeTMReflective Sheeting 973 3M company, St. Paul, Minnesota, USA). The resulting product was attached to a glass substrate. When you try to remove the product stratified. Part of the product, remaining glued to the substrate consisted of a film with a double coating and fragments of the layer of paint and holographic film. This part could be removed, taking her over the edge and pulling her to break the adhesive bond with the surface of the substrate.

Skilled in the art specialists will be apparent various modifications and changes of the invention, is not beyond the scope and essence of the invention.


Claims

1. The product that is reusable substrates, providing signs of tampering on it, containing (a) a film made effective in the short-term pressing of glue or tape, covered effective at short-term pressing of the adhesive to be removed without taking the cohesive fracture from the surface of the substrate by stretching the film or tape, and (b) at least one damageable layer exhibiting cohesive failure at trying to remove the product from the surface of the substrate, and an attempt odalities with the surface of the substrate.

2. The product under item 1, characterized in that the specified film or tape can be removed from the substrate surface by pulling the film or tape at an angle of approximately 45to the surface of the substrate.

3. The product under item 1, characterized in that the film or tape contains effective at short-term pressing of the adhesive is selected from the group effective for short-term pressing of adhesives consisting of acrylic, block-copolymer, rubber poly-alpha-olefin adhesives and glues from silicone polymers, with this tape contains a base selected from the group consisting of films of organic polymers, film of polyurethanes, films of polymers containing polymerized elementary units derived from one or more olefinic monomers, of one or more vinyl monomers and mixtures of olefins and vinyl monomers and films from mixtures of the above polymers.

4. The product under item 3, characterized in that it is effective for short-term pressing of the adhesive is selected from the group effective for short-term pressing of adhesives consisting of acrylic adhesives and glues from silicone polymers, and these polymers bases selected from the group costasera elongation at break of approximately 50 - 1200%, the young's modulus is at least about 17.2 N/mm2but less than approximately 500 N/mm2and the tensile strength, high enough that the base was destroyed when removing the tape from the surface of the substrate, and (b) is effective in short-term pressing of the adhesive applied on at least part of at least one main surface of the substrate, and the tape can be tightly attached to the surface of the substrate and remove it by pulling the tape at an angle of approximately 45to the surface of the substrate.

6. The product under item 1, wherein the damaged layer is selected from the group consisting of brittle materials, paper, signs, hot melt adhesives, effective at short-term pressing of adhesives and irreversibly deformable polymer films.

7. The product under item 1, characterized in that it further comprises a second damaged layer, while the second damaged layer contains a holographic film.

8. The product under item 1, characterized in that it is effective for short-term pressing of the adhesive is acrylic.

9. The product that is reusable substrates, providing signs of tampering on it, including (a) a ribbon covered effective when krotkine elongation at break of approximately 50 - 1200%, the young's modulus is at least about 17.2 N/mm2but less than approximately 500 N/mm2and the tensile strength, high enough that the base was destroyed when removing the tape from the surface of the substrate, and (ii) effective for short-term pressing of the adhesive applied on at least part of the first and second main surfaces, and the tape can be tightly attached to the surface of the substrate and remove it by pulling the tape at an angle of approximately 45to the surface of the substrate; (b) damaged layer exhibiting cohesive failure at trying to remove the product from the surface of the substrate, and the damaged layer contains characters; (C) is applied in the form of the figure removed the coating and (d) retroreflective layer.

10. The product under item 9, characterized in that it is effective for short-term pressing of the adhesive is acrylic.

11. The product under item 9, characterized in that it further comprises a second damaged layer, while the second damaged layer contains a holographic film.

12. The article on p. 11, characterized in that it further comprises a primer coating.

13. The product under item 9, characterized in that the film or tape contains effective in short ilovyh block-copolymer, rubber, poly-alpha-olefin adhesives and glues from silicone polymers, with this tape contains a base selected from the group consisting of films of organic polymers, film of polyurethanes, films of polymers containing polymerized elementary units derived from one or more olefinic monomers, of one or more vinyl monomers and mixtures of olefins and vinyl monomers and films from mixtures of the above polymers.

14. The substrate containing support product under item 1 or 9.

 

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FIELD: carpet securing facilities.

SUBSTANCE: apparatus has continuous layer of foamed material including continuous lower layer of foamed material with non-sliding and non-adhesive lower surface contacting directly with floor surface, and continuous upper layer of foamed material with upper surface for contacting with lower side of covering. Apparatus is further provided with continuous thin woven layer intermediate lower layer of foamed material and upper layer of foamed material, and adhesive layer on upper surface of layer of foamed material. Adhesive layer may be layer of acrylic adhesive. According to second version, adhesive layer may be pressure-sensitive adhesive layer. According to third version, apparatus has layer of detachable paper coated with silicone, said paper layer covering said adhesive layer. Method involves providing carpet holding apparatus consisting of non-sliding and non-adhesive separate non-bound and continuous sheet with upper surface adapted for engagement with carpet lower side, and lower side adapted for preventing carpet from displacement relative to floor surface without utilization of adhesive; applying adhesive means onto upper surface of said sheet; placing said sheet between carpet and floor surface so that said adhesive means cooperates with carpet and said lower surface of said sheet cooperates with floor for preventing carpet from displacement relative to floor.

EFFECT: simplified method for operation of repositionable carpet holding apparatus, reduced production costs and increased efficiency in preventing carpet from sliding relative to floor.

6 cl, 5 dwg

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