Protective film and protective label with manipulation detection system

FIELD: process engineering.

SUBSTANCE: invention relates to production of protective films applied on valuable documents or data carriers. This film features the following structure: a) first carrier substrate; b) first lacquer layer hardened by radiation and including active optical structure; c) first metal layer; d) protective lacquer layer; e) gluing layer; f) second carrier substrate; g) second lacquer layer hardened by radiation; h) second metal layer. If necessary, this film comprises protective lacquer layer (i) and glue coat (k). Note here that adhesion between g) and h) or f) and g) is notably higher than that between the other layers.

EFFECT: detection of manipulation at protected object.

9 cl, 6 dwg

 

The invention relates to a protective film, which can be applied to the value document or the data carrier and can detect manipulation.

Security labels or protective films are known and generally include a layer that allows to detect the manipulation, that is, a layer that includes a region with different adhesion and adhesive coating, and optionally one or more protective features. Particularly suitable protective features are, for example, y security features, which can be produced cost-effectively, but provide relatively good protection against forgery.

Object of the invention is to provide a protective film that can be applied to a securable object, such as a valuable document, a data medium, package or the like.

Therefore, the object of the invention is a protective film consisting of two or more substrate carriers, which include at least one optically active structure and at least two metal layers, wherein the protective film has the following construction:

a) a first substrate carrier;

b) a first radiation-curable lacquer layer, which introduced the optically active structure;

c) a first metal layer;

(d) required the spine of the protective layer of varnish;

e) an adhesive layer;

f) a second substrate carrier;

g) a second curable by irradiation of the layer of varnish;

h) a second metal layer;

i) optionally, a layer of protective lacquer;

k) optionally, adhesive coating,

thus the adhesion between the layers (g) and (h), or (f) and (g) are much smaller than the adhesion between other layers.

As the substrate carrier (a) possible, for example, film media, preferably a flexible polymer film, for example, PI, PP, MOPP, PE, PPS, PEEK, PEK, PEI, PSU, PAEK, LCP, PEN, PBT, PET, PA, PC, COC, POM, ABS, PVC, fluoropolymers, such as Teflon, and the like. Film carriers preferably have a thickness equal 5-700 μm, preferably 5-200 μm, particularly preferably 5-100 μm.

Under optically active structure here refers, in particular, diffractive optical active structures such as holograms, the surface relief diffractive structure, the diffraction grating, Kinegram and the like.

On the first substrate carrier is applied to a radiation-curable layer (b) varnish.

Curing irradiation lacquer may, for example, be a radiation-curable lacquer system based on closepreview, epoxy or polyurethane systems, which contains two or more different, well-known specialist photoinitiators that at different wavelengths can the INIC is activated curing lacquer systems to varying degrees. For example, one photoinitiator can be activated at a wavelength of from 200 to 400 nm, then another photoinitiator can be activated at a wavelength of from 370 to 600 nm. Between activation wavelengths of the two photoinitiators should be sufficient difference that was not too strong excitation of the second photoinitiator, while the activated first photoinitiator. The range in which excited the second photoinitiator must be within the range of noise wavelengths of the applied substrate carrier.

For the main curing (activation of the second photoinitiator) can also be applied to electron irradiation.

As the radiation-curable varnish may also be used with water-dilutable lacquer. Preferred are lacquer systems based on complex polyester.

Matriciana surface structure, that is, diffraction, difraktsionnoe or embossed patterns, occurs, for example, at a controlled temperature by means of a matrix or mold for stamping in curing by irradiation of the layer of varnish, which by activating the first photoinitiator was previously overiden to the point of gelation, and by the time matriciana is in this stage.

If used with water-dilutable radiation-curable varnish, if necessary, in the possible additional preliminary drying, for example, using an infrared irradiator.

The thickness of the deposited radiation-curable varnish may vary depending on the requirements for the final product and the thickness of the substrate and is in General from 0.5 to 50 μm, preferably from 2 to 10 μm, particularly preferably from 2 to 5 microns.

Then made thus optically active structure is applied to cover the surface completely or preferably partially metal layer (c).

For this purpose, preferably the first stage is applied soluble in the solvent layer of paint, at the second stage, this layer is processed through ongoing in-line plasma, corona or flame process and at the third stage, a layer of metal, metal compounds, alloys, and then in the fourth stage paint layer is removed by a solvent, if necessary in combination with mechanical action.

Apply paint or apply colored nail Polish is soluble in a solvent, preferably in water, but can also be used in paints, soluble in any solvent, such as alcohol, ethers and the like. Paint or color the varnish can be a conventional compositions based on natural or synthetic macromolecules. Dissolve is ima paint can be pigmented or non-pigmented. As pigments can be used all known pigments. Especially suitable are TiO2, ZnS, kaolin and the like.

Then equipped with a printing substrate carrier, if necessary, to improve the adhesion of the next applied layer is processed through ongoing in-line plasma (plasma low pressure or atmospheric plasma, corona or flame process. Through the intense energy of the plasma, such as Ar or Ar/O2-plasma, the surface is cleaned of the residual toners printing inks. Simultaneously, the surface is activated. Thus formed on the surface of polar end groups. This improves the adhesion of metals and the like to the surface.

If necessary, simultaneously with the application of plasma or corona or flame treatment can be applied as an adhesive, a thin layer of metal or metal oxide, for example, by sputtering or evaporation deposition. Particularly suitable are Cr, Al, Ag, Ti, Cu, TiO2the Si oxides or chromium oxides. This adhesive layer in General has a thickness of 0.1 nm to 5 nm, preferably 0.2 nm to 2 nm, particularly preferably 0.2 nm to 1 nm.

This is required for optimal adhesion between the two layers (b) and (c).

Partial metal layer (c) as the second metal layer (h), can be applied in the form of letters, numbers, symbols, lines, gelosa, logos and the like. In addition, these letters, numbers, symbols, lines, gelosi, logos and the like can be set by the recesses in the metal layer.

As the metal layers are possible, for example, layers of Al, Cu, Au, Ag, Pd, Pt, Ni, Zn, Sn and the like. In addition, as the metal layers possible alloys or metal oxides, such as oxides of Cu, TiO2, SiOx.

Then this design is optionally supplied with a protective layer of varnish and applying an adhesive layer for laminating connects with another substrate carrier f), which is also provided with a radiation-curable layer (g) varnish.

To achieve strong adhesion between the second substrate carrier f) and second radiation-curable layer (g) of the lacquer is preferably applied, for example, equipped with acrylate coating polymer film or film with adhesive, so that the adhesion of the radiation-curable varnish layer with a film much better than with the metal layer.

If you want to get the lowest adhesion in design between the layers (f) and (g), the substrate carrier f) possible materials provided for the substrate carrier (a).

This second radiation-curable lacquer layer may include other optical active structure.

When is neobhodimosti radiation-curable lacquer layer can be provided with another coating, for example partially opaque coating, which has recesses in the form of numbers, letters, figures, symbols, lines, kilosa and the like.

Then, on this layer is applied to the other partial metal layer (h), however, during fabrication of this layer described above stages of pre-treatment and adhesive application are not carried out, because the adhesion structure between layers (g) and (h) must be the smallest.

This is a weaker adhesion metal layer located underneath layer, here the connection is formed by a weakening of the so-called place of the alleged destruction.

The function of the protective element is provided by two layers of metal that overlap so that only the top metal layer (including the first optically active structure) is visible and only after manipulation becomes visible second layer of metal (possibly including other optically active structure).

Partial metal layers (c) and (g) are preferably the same, but they can also be placed partially overlapping each other with each other or complement each other, so as to manipulate the impression of a continuous metal layer. In respect of optically active structures (optically active structures) layers can be location is in coinciding, but also partially overlapping each other.

Then the design can be provided with a layer of protective lacquer and/or adhesive coating designed for application to a substrate.

The adhesive coating may be a self-adhesive coating, coating, designed for cold or hot stamping.

In one of the embodiments (figs.1) equipped with two metal layer region are identical and overlap with exact registration. In addition, between the first and second metal layer has a hidden lettering, which becomes visible only after the manipulation. On the substrate remains lower metal layer with hologram "fake". The first hologram is removed.

In another embodiment (Fig.2) under the first partial metal layer (c) (including embossing) is hidden another partial layer (for example, in the form of letters or letters that are defined in the form of grooves, which becomes visible only when there is manipulation. After removal of the substrate remain covered with metal letters "fake". The basic hologram is removed.

If each of the layers (b) and (g) is added to an optically active structure, they can be entered with precise registration relative to each other or at least partially overlapping each other.

Optically active structure can optionally additionally contain the th information so the confirmation of authenticity is possible even after manipulation. As an additional information data can be, for example, introduced product codes, lot numbers, and the like.

In addition, the proposed invention, the protective film may include other security features, such as electrically conductive layers, the layers of magnetic and optical characteristics (for example, y the characteristics of thermosensitive color signs, pearl gloss layers, and the like).

The figures indicated:

A - protected data carrier or package,

B and C are alternative region of strong adhesion,

D - place of the alleged destruction,

1 - the first substrate carrier,

2 - the first radiation-curable lacquer layer, which introduced the optically active structure

3 - the first (partial) metal layer,

4 - a layer of protective lacquer,

5 is an adhesive layer,

6 - the second substrate carrier,

7 - the second radiation-curable lacquer,

8 - the second (partial) metal layer,

9 is a layer of protective lacquer,

10 - adhesive coating,

11 is a partial opaque layer.

By the invention, the protective film can be used as a protective element on data carriers or packages, as security labels, intended to protect the subject is s or packaging, or as vignettes.

1. Protective film for use as a protective element on data carriers or packages, as security labels, designed to protect items or packages, or as vignettes, consisting of two or more substrate carriers, which include at least one optically active structure and at least two metal layers, wherein the protective film has the following construction:
a) a first substrate carrier;
b) a first curable by irradiation of the layer of lacquer on the basis of closepreview, epoxy or polyurethane systems or with water-dilutable lacquer based on a complex polyester, which introduced the optically active structure in the form of a hologram, the surface relief diffractive structure, the diffraction grating or Kinegram, and where the varnish layer optionally contains a thin layer of metal or metal oxide as a promoter of adhesion;
c) a first metal layer;
d) a layer of protective lacquer;
e) an adhesive layer;
f) a second substrate carrier in the form of a synthetic film of polyimide, polypropylene, oriented polypropylene, polyethylene, polyster, simple polyetherketoneketone, simple polyetherketone, polyetherimide, polysulfone, polyaryletherketones, zhidkokristallicheskogo p is limera, polyethylenterephtalate, polybutylene terephthalate, polyethylene terephthalate, polyamide, polycarbonate, a copolymer of cycloolefin, Polyoxymethylene, copolymer of Acrylonitrile-butadiene-styrene, polyvinyl chloride, fluoropolymers, such as Teflon, or a synthetic film with acrylate coating or film with adhesion promoter;
g) a second curable by irradiation of the layer of lacquer on the basis of closepreview, epoxy or polyurethane systems or with water-dilutable lacquer based on a complex polyester, where the varnish layer optionally contains a thin layer of metal or metal oxide as a promoter of adhesion;
h) a second metal layer;
i) optionally, a layer of protective lacquer;
k) if necessary, the adhesive coating;
thus the adhesion between the layers (g) and (h), or (f) and (g) are much smaller than between other layers;
and if the adhesion between the layers (g) and (h) are considerably lower than the adhesion between other layers, as the second substrate carrier (f) applies synthetic film with acrylate coating or film with adhesion promoter,
and if the adhesion between the layers (f) and (g) are considerably lower than the adhesion between other layers, the layer (g) includes a thin layer of metal or metal oxide as a promoter of adhesion.

2. Protective film on p. 1, characterized in that the layer (g) including the AET in themselves optically active structure.

3. The protective film under item 1 or 2, characterized in that the optically active structure is a hologram, the surface relief diffractive structure, the diffraction grating or Kinegram.

4. The protective film under item 1 or 2, characterized in that between the layer (g) and (h) may be another partial opaque layer.

5. The protective film under item 1 or 2, characterized in that the layers (C) and (h) are covering the entire surface or partial layers.

6. Protective film on p. 5, characterized in that the partial layers (C) and (h) are, coinciding with accurate wiring or at least partial overlapping relation to each other and/or relative to the optically active structures (optically active structures).

7. The protective film under item 1 or 2, characterized in that they are introduced in layers (b) and (g) an optically active structure introduced with precise registration relative to each other or at least partially overlap.

8. The protective film under item 1 or 2, characterized in that the protective film includes other covering the entire surface or partial layers with signs of electrical conductivity, magnetic or optical characteristics.

9. The application of a protective film on one of the PP.1-8 as a protective element on data carriers or packages, as security labels, the designation is authorized for sewn items or packages or as vignettes.



 

Same patents:

FIELD: physics.

SUBSTANCE: invention relates to a security element having the following layers: a) a substrate, b) a first lacquer layer having a diffraction-optically active structure containing a hologram, a surface relief, a diffraction structure, a diffraction grating or kinegram, c) a second lacquer layer, e) an adhesive coating. In case of an attempt at tempering with the security element, the first lacquer layer (b) separates from the second lacquer layer (c) and the optically active structure entering the first lacquer layer (b) in both the separated first lacquer layer and the second lacquer layer remaining on the protected object becomes visible as a negative.

EFFECT: disclosed security element provides unambiguous determination of tempering with the security element.

14 cl

FIELD: printing.

SUBSTANCE: invention relates to a security element, in particular to security labels or adhesive tapes. The security element comprises the following layers: a) a substrate-carrier; b) a reflecting layer or layer with a high refractive index; c) a partial separation layer of varnish; d) the adhesive intermediate coating applied to the entire surface; e) the adhesive layer applied on the entire surface where the adhesive coating d) is in those places where there is no separation layer of varnish c), adhesion of the layer b) with the substrate-carrier a) is disturbed, and in case of attempt to manipulate due to separation of the layer b) it is separated from the substrate-carrier a) in those areas where there is no separation layer of varnish c).

EFFECT: proposed security element provides ease of detection of manipulation with it.

11 cl

FIELD: chemistry.

SUBSTANCE: method of making a label consists of adjacent bottom layer of magnetic vinyl, middle layer of sheet material with a pattern on the outer surface and an adhesive coating on its bottom surface, and a top polymer layer. The first layer of the label is connected by adhesive forces to the second layer of the label, on top of which a transparent liquid polymer is deposited. During the polymerisation process, the label is held on a flat horizontal ferromagnetic base. Boundaries of the middle layer of the label are displaced inside the boundaries of its bottom layer. At least one closed region is formed on the solid surface of the transparent polymer, the region being bounded by a layer of hydrophobic substance, inside of which at least one layer of liquid polymer is deposited. The label is held during the process of polymerising each layer of the liquid polymer.

EFFECT: high strength, longevity and moisture protection of the label, wider range of labels owing to higher prominence of structural layers.

8 cl, 5 dwg

FIELD: process engineering.

SUBSTANCE: proposed invention relates to method of fabricating laminar material for labels. Proposed method comprises producing transparent polymer film 2a with first and second surfaces. Printing is made on second surface of said transparent polymer film. Method includes introducing substrate 6 including separation surface 6a and sole layer of dry adhesive 2c on said separation surface. Then, dry adhesive surface is activated to make it sticky. Thereafter, sticky adhesive on separation surface is attached to second surface of transparent polymer film.

EFFECT: simplified procedure, excluding one layer of transparent film and one layer of laminating adhesive.

5 cl, 3 dwg

FIELD: transport.

SUBSTANCE: proposed labeling machine auxiliary comprises label feed device and thermal label data printer. Said auxiliary includes also foundation to be attached to labeling machine to support device to feed coats secured to tape and may be detached therefrom. Besides it comprises tape drive to feed toward device intended for detaching said coats from tape and apply them onto labels, as well as dispenser to feed substance charges onto separate label.

EFFECT: ease of mounting, possibility to incorporate thermal monitoring function with labels.

6 cl, 6 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to production of shrinkable polymer labels, particularly to preparation of a film composition. The composition contains (a) a high-impact polystyrene component (HIPS) with a block-copolymer grafted to the polystyrene, (b) 10-50 wt % general purpose polystyrene (GPPS) and (c) approximately 2-80 wt % styrene block-copolymer. Component (a) contains a grafted rubber component which is a styrene block-copolymer and a rubber-like diene with conjugated double bonds from 1 to 7 wt % of the weight of the HIPS; less than 10 wt % concentration of gel, defined by extraction of the methylethylketone/methanol mixture. The average particle size of the rubber is less than 1 mcm and 0.01 mcm or more. Approximately 40-90 vol % of the rubber particles have diametre approximately less than 0.4 mcm and approximately 10-60 vol % of the rubber particles have diametre of approximately 0.4-2.5 mcm. Most of the rubber particles have a nucleus-shell morphology and said particles are in concentration of 10-70 wt % of the total weight of the polymer composition, and 1-5 wt % of the rubber-like diene of the total weight of the polymer composition.

EFFECT: film made from said composition has ratio of directed length to non-directed length in the direction of the greatest drawing at least equal to 3:1 and enable increase in size by 20% in the direction of less stretching at 110°C.

10 cl, 3 tbl, 7 ex

FIELD: physics; signaling.

SUBSTANCE: invention relates to a method of making carrier material with at least one hidden identification mark. The method of making packaging aluminium foil with at least one hidden identification mark which is deposited and then closed in at least one area of the surface of the package aluminium foil involves closing one or more identification marks by stamping.

EFFECT: possibility of authentication of an object not only by a specialist but by an ordinary user.

13 cl, 2 dwg

FIELD: packaging industry.

SUBSTANCE: cover in the form of tubing is capable of tight fitting at least part of the item or a group of items. The tubing is made by placing one upon another at least two walls joined together with the help of a gluing agent, which is applied on the whole surface of the cover, and with the capability of separation. Walls have basically identical shrinkage characteristics to ensure uniform shrinking of the tubing on the item. The outer wall of the tubing additionally contains at least one cut, which partially restricts the detachable circular band. On the circular band a picture which is visible from both sides of the band is printed. The other side(s) also has printed pictures, in particular behind the detachable circular band, in such a way that the corresponding printed picture is readable after separating the detachable circular band.

EFFECT: proposed invention provides the creation of improved covers, which ensure the placement of a large amount of information on their surface, even if the packed items have a small diameter.

20 cl, 18 dwg

FIELD: information technologies.

SUBSTANCE: machine-readable record carrier with the mixed code written down on it is offered; it includes: area of the first code image where the first code image received by coding of the first information contains, with use of colour, a shade or their combination, and area of the second code image in which the second code image received by coding of the second information contains, with use of colour, a shade or their combination. The first code image and-or the second code image include results of the information of interpretation of coding, the information of construction, the control information over errors and information of a direction of a code. The mixed code is received by difference regulation in colour and brightness between images of the first and second codes to the set level and a combination of these images. The first and second code images can be decoded effectively by decoding of the information of interpretation, the information of construction, the control information over errors and information of a direction of the code, the saved in first and-or second code images.

EFFECT: increase in data quantity which can be contained in the mixed code, by change or addition of the additional information to the code.

39 cl, 28 dwg, 6 tbl

Protective device // 2338267

FIELD: protective device.

SUBSTANCE: protective sticker contains a film-carrier, and also first layer consisting of non-attaching polymeric coating printed on the film, which has UV printing ink for rotary printing and determines attaching points, which form first pattern and principally do not have non-attaching polymeric coating. The protective sticker also contains second layer made of attaching material having several attaching pigmented polymeric coatings to lay the second pattern on the sticker. The second layer is stuck to the carrying film through attaching points of the first layer, and the protective sticker additionally contains a glue for sticking to the supporting element.

EFFECT: production of sticker, which makes interference in documents to which sticker is attached evident.

36 cl, 6 dwg

FIELD: medicine.

SUBSTANCE: there are described various systems, methods and materials, which provide the effective introduction of a substance into an adhered product, wherein the given substance has a desired effect as it and when necessary. Notwithstanding its general nature, the given approach is described more specifically with regard to pain relief and injury-free removal of the products attached to mammalian tissues, including skin and hair by introducing the agent or a similar fluid. There are also described other methods and device, which promote using or removing the above adhesive products.

EFFECT: provided effective introduction of the substance into the adhered product.

21 cl, 29 dwg, 3 tbl

FIELD: package.

SUBSTANCE: invention refers to package, particularly to adhesive clamp for bag sealing. Adhesive clamp includes continuous band covered with adhesive material at one side, clamping strip in the form of thin plank out of flexible non-elastic material with rounded ends, attached to adhesive side of the band. Adhesive side of clamp enables attaching the clamp to a roll so that clamping strip is positioned between the adhesive side of band and roll, the band is wider and longer than the clamping strip, and all parts of the clamping strip are covered.

EFFECT: reliable device for elastic bags, enabling repeated closing.

25 cl, 48 dwg

FIELD: chemistry.

SUBSTANCE: adhesive composition includes perchlorovinyl resin, plasticiser and adhesiveness-increasing additive. Composition additionally contains epoxidated 1,2-polybutadiene or epoxidated syndiotactic 1,2-polybutadiene in quantity from 1 to 15 wt.p.; epoxidated 1,2-polybutadiene with average weight molecular weight from 8000 to 12000 being applied. Degree of epoxidation in epoxidated 1,2-polybutadiene consistitutes from 4 to 33%.

EFFECT: increased adhesion of sticky PVC-tape to metal surface.

3 cl, 11 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: glue composition includes perchlorovinyl resin, plasticiser and adhesion-increasing additive. Composition additionally contains hydroxylated 1,2-polybutadiene or hydroxylated syndiotactic 1,2-polybutadiene in quantity from 1 to 15 wt.p.; hydroxylated 1,2-polybutadiene with average weight molecular weight from 8000 to 12000 being applied. Degree of hydroxylation in hydroxylated 1,2-polybutadiene consistitutes from 2 to 27%.

EFFECT: increased adhesion of sticky PVC-tape to metal surface.

3 cl, 11 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to adhesive materials and can be used in light industry, including sewing, and for making special-purpose and medical articles. The multilayer adhesive material is obtained in form of a film which is smooth on one side and sticky on the other side. The layers are formed successively from compositions with the same chemical make-up which are an aqueous dispersion of a copolymer of butyl acrylate, methacrylic acid and acrylonitrile. Components of the composition of the adhesive layer are in ratio of (92:5:3)-(97:2:1). Components of the reinforcing layer are in ratio of (70:20:10)-(77:17:6). If there is need for one or more intermediate layers, the components are in ratio of (80:15:5)-(85:13:7). Depending on the purpose of the article, the reinforcing layer can be an intermediate layer. Sections of the sides of the material have a shaped configuration. One or more layers can contain chemical additives, such as a dye, an adhesive property enhancer in form of aqueous solutions or powder.

EFFECT: invention broadens technical capabilities of the multilayer adhesive material, improves the quality of the article, reduces the rigidity of joints, lowers energy, material and labour costs and also increases the reliability of articles in accordance with properties of the material and conditions of use.

2 cl, 5 dwg, 2 tbl

FIELD: packaging industry.

SUBSTANCE: label is made with the ability to cover the said surface without complete wrapping the product and comprising a heat shrinkable tape with inner and outer surfaces and with the machine and transverse directions and a continuous adhesive layer of pressure-sensitive adhesive with the inner and outer surfaces covering substantially the entire inner surface of the heat shrinkable tape. At that the inner surface of the adhesive layer is adhered to the inner surface of the tape and the outer surface of the layer is made with the ability of adhesion with surface with at least one complex curvature. At that the tape is made with an ultimate shrinkage S measured by the method ASTM D1204 in at least one direction of at least 10 % at 90°C, and in another direction S±20%. The invention also relates to the product with the label.

EFFECT: label can be applied to containers and products with a complex shape and curvature, using less material and less expense than using for a label of sleeves of shrinkage material or wrapping with such material.

14 cl, 9 ex, 1 tbl, 18 dwg

FIELD: chemistry.

SUBSTANCE: adhesive composition contains the following components: A) a mixture consisting of 20-85% polyurethane and 15-80% adhesion enhancing resin with number-average molecular weight of 200-5000 Da, B) 0.01-3% cross-linking catalyst. The polyurethane contains 2 hydrolysable alkoxysilane end groups and has the following formula: , where: R1 is a divalent hydrocarbon radical containing 5-15 carbon atoms; R2 is a divalent alkylene radical containing 1-4 carbon atoms; R3 is a divalent linear alkylene radical containing 1-3 carbon atoms; R4 and R5 is an alkyl radical containing 1-4 carbon atoms; n is an integer which is such that the number-average molecular weight of the polyether block of formula -[OR2]n- ranges from 300 Da to 30 kDa; m is an integer which is such that the number-average molecular weight of polyurethane ranges from 600 Da to 60 kDa; p equals 0, 1 or 2. A self-adhesive base is obtained by heating the adhesive composition at temperature in the range of 50 to 130°C, depositing the composition on a base layer and cross-linking the composition by heating the coated base at temperature of 50 to 150°C.

EFFECT: invention increases adhesive power of the composition which can be stored in a wide temperature range.

10 cl, 1 tbl, 8 ex

FIELD: chemistry.

SUBSTANCE: method is realised by applying a heat shrink multilayer adhesive tape, having a protective layer made from polyethylene tape, electron-chemically modified and aligned in the common direction by 25-75%, and an adhesive layer made from a tape which is electron-chemically modified with accelerated ions with absorbed dose of 0.1 MGy, made from a composition which contains an ethylene and vinyl acetate copolymer with content of vinyl acetate groups of 10-14%, melt fluidity of 5.0-10.0 g/10 min and breaking strength of 9.8 MPa or an ethylene and vinyl acetate copolymer with content of vinyl acetate groups of 10-15%, melt fluidity of 2.0-6.0 g/10 min and breaking strength of 9.0 MPa, mineral filler, modifier - polyisocyante and sulphur-containing polyhydroquinone disulphide stabiliser in concentration of 0.1-0.3 wt %.

EFFECT: improved adhesion strength of the insulation material.

9 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: method of making heat shrink tape for a gasket from polyethylene and an ethylene and vinyl acetate copolymer by mixing polyethylene and an ethylene and vinyl acetate copolymer with a sulphur-containing polyhydroquinone disulphide stabiliser with concentration of 0.1-0.3 wt %, irradiating the obtained tape with accelerated electrons with absorbed dose of 0.07-0.1 MGy and subsequent duplication at temperature of 145-150°C. The heat shrink tape is stretched by 15-70% at temperature of 140-150°C and cooled under a load to room temperature.

EFFECT: technologically improved process of making heat shrink tape.

5 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a hot-melt pressure-sensitive adhesive (HMPSA) composition used for self-adhesive labels. The HMPSA composition contains a styrene block-copolymer which is compatible with a tackifying resin, as well as one or more carboxylic acids whose hydrocarbon chain contains 6-54 carbon atoms. The softening temperature of the tackifying resin ranges from 80 to 150°C and its acid number is less than 20. A multilayer system, having a layer of the HMPSA composition, contains a printable base layer and an adjoining protective layer. The self-adhesive label is obtained by converting the multilayer system. An article coated with the self-adhesive label is a storage container, a container made from glass or plastic, preferably a glass bottle. The article with the label is recycled by removing the label by immersing the article in hot aqueous alkaline solution.

EFFECT: high efficiency of the hot-melt pressure-sensitive adhesive composition.

17 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a multilayer film composite, an identification smart card, an identification document, a personal data medium etc, having a multilayer film composite, use of said multilayer film composite, production thereof and a polycarbonate or copolycarbonate composition. The multilayer film composite has at least one layer of polycarbonate or copolycarbonate and is characterised by that the polycarbonate or copolycarbonate further contains one or more additives selected from a group comprising petaerythritol tetrastearate, glycerol monostearate, propanediol stearate, stearyl stearate and mixtures of said compounds. Total concentration of the additives selected from said group ranges from 2.1 to 6% with respect to the weight of the composition.

EFFECT: obtaining a film for producing multilayer systems, having the necessary level of mechanical properties and characterised by a higher layering suitability compared to prior art, high layering adhesion and improved processing properties.

7 cl, 1 tbl, 1 dwg, 4 ex

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