Acrylate dispersion adhesive for producing self-adhesive transparent tags, method of producing said adhesive and use thereof

FIELD: chemistry.

SUBSTANCE: acrylate dispersion adhesive contains at least one UV absorber selected from a group consisting of benzoate and benzoate derivatives, cinnamate and cinnamate derivatives, benzophenone and camphor derivatives. The laminate for transparent tags contains a film substrate or a paper substrate, a radiation-cured anti-adhesion separating coating, an adhesive layer and a transparent printed material. The separating coating contains epoxy siloxanes cured via a cationic mechanism or silicone acrylates cured via a radical mechanism. To obtain the laminate, the separating coating is applied on the film substrate or paper substrate. The adhesive layer is then deposited on the separating film or separating paper and cured if necessary. The transparent printed material is laminated onto the deposited adhesive layer.

EFFECT: invention reduces undesirable increase in peeling off when making transparent tags.

7 cl, 2 tbl, 1 ex

 

The present invention relates to the field of production of self-adhesive No-Label-Look labels ("absence"), especially acrylate dispersion glue for obtaining No-Label-Look labels, self-adhesive laminate for No-Label-Look labels, method of its production and to its use.

Self-adhesive labels find wide and varied application. They serve, for example, for marking and characteristics of the goods, commodities or containers.

Typically, before applying a label coated with a contact adhesive paste on the so-called separation film, respectively, on the separating paper. In both cases we are talking about a flat substrate, which includes a release coating which reduces the adhesion tendency of the contact adhesive against the substrate. It is important to choose the adhesion between the label and the substrate so that the label can be pulled from the substrate, respectively, to remove from it. The adhesion of self-adhesive labels with liner must be strong enough, for example, when the engine labeling was not premature peeling of labels during their passage through the guide rollers. However, on the other hand, labels must allow their tipanie from the coated film substrate, is relevant to the military covered paper substrate so that if this were not significantly worsened their adhesive power for later use. Various contact adhesives require separating coatings with different selected antiadhesive properties. Integral design labels and separating film, respectively, separating the paper is called a laminate.

The power required for off label with the separation of paper, respectively, of the release film, referred to as the rate of exfoliation, which is usually specified in CH/2,5 see

Paper, respectively, of the film substrate supply separating coating by applying to the substrate a layer of so-called anti-adhesive composition and curing of the composition.

According to the prior art to obtain a separating coatings, among other things, the use of reactive siloxanes, which are sewn under the influence of temperature, ultraviolet radiation or electron beam exposure. As a rule, add a suitable catalyst or initiator, which is activated under the influence of temperature, ultraviolet radiation or electron beam exposure and, thus, triggers a chemical reaction leading to cure.

Radiation cured adhesive compositions for coating, curing which flows through radically the th mechanism, described in US-A 4421904, US-A 4547431, US-A 4952657, US-A 5217805, US-And 5279860, US-A 5340898, US-A 5360833, US-A 5650453, US-A 5866261 and US-A 5973020 and US-A 4201808, US-A 4568566, US-A 4678846, US-A 5494979, US-A 5510190, US-And 5552506, US-A 5804301, US-A 5891530 and US-A 5977282. Mixtures of several such compounds with different lengths of chains for coating and/or modification methods mentioned in US-B 6548568 and US-B 6268404, and publishing company Goldschmidt "TEGO® RC Silicones, Application Guide". Usually in such systems curable groups are acrylate groups.

Radiation cured release coating compounds, the curing of which flows through a cationic mechanism, described for example in US-A 5057549, US-A 5231157, US-A 4421904, US-A 4547431, US-A 4952657, US-A 5217805, US-A 5279860, US-A 5340898, US-A 5360833, US-A 5650453, US-A 5866261 and US-A 5973020. Usually in such systems curable groups are epoxy groups.

In the case of crosslinking by ultraviolet irradiation to organosilicon compounds add photoinitiator. Appropriate photoinitiator called, inter alia, in the following documents: "J.P.Foussier, Polymerization photoinitiators: Excited state process and kinetic aspects, Progress in Organic Coating, 18 (1990), 229-252"; "J.P.Foussier, Photochemical reactivity of UV radical photoinitiators of polymerization: A general discussion, Recent Res. Devel. Photoche. & Photobiol., 4 (2000), 51-74"; "D.Ruhlmann et al., Relations structure-dans les proprietes photoamorceurs de polymerization-2. Derive de Phenyle Acetophenone, Eur. Polym. J. Vol.28, No.3, pp.287-292, 1992" and "K.K.Dietiker, Chemistry &Technology of UV &EB Formulation for Coatings, Inks &Paints, Volume 3, Sita Technoogy Ltd., UK", as well as the application DE-A 10248111 and US-A 4347111.

Usually the process of manufacturing self-adhesive labels provides that the first substrate is applied separating the coating, resulting in a gain separating paper, respectively, the separating film. Then separating the paper, respectively separating film put glue and, if necessary, utverjdayut. The next phase is produced by laminating printed material (face stock) and thus receive the finished laminate. To obtain labels, ready for use, printed material, as a rule, still sealed and, if necessary, provide additional decoration. Finally, the label cut down on the punching press and Packed with obtaining the finished product.

The paints used for sealing, otverzhdajutsja in General by ultraviolet irradiation. Usually for one printing use up to 12 colors. Therefore, the label is subjected to repeated UV radiation.

For some time the trend of manufacturing a so-called No-Label-Look labels (with the effect of absence), which are distinguished by the fact that the printed material is a transparent film. Usually, this film is made from polyethylene or polypropylene. No-Label-Look labels, in particular, are used in the cosmetic industry for Ukraine is to be placed and labeling of personal care products. As glues are often used acrylate dispersion adhesive, but are used also and the hot-melt adhesive and UV glue. Typical aqueous acrylate dispersion adhesive contains from about 40 to 60 wt.% solid substances. Of those, about 10 to 60 wt.% accounts for the variance of the polymer such as acrylic polymer, from about 0 to 50 wt.% the so - called dispersion of a substance that increases the stickiness introduced to control the stickiness, from about 0.5 to 1.5 wt.% on cross-linking agents, and from about 0.1 to 1.5 wt.% - on the non. In addition, the adhesive also contains a thickener and ammonia. For film labels, usually applied dispersion adhesives without substance that increases the stickiness.

While manufacturing these No-Label-Look labels could be observed that the force required for peeling labels from separating paper, respectively, of the separating film (the rate of exfoliation), after printing increases considerably in comparison with the unsealed condition. This effect can be expressed so strongly, resulting in deteriorated mechanical Assembly or the issuance of labels.

Therefore, the present invention was based on the objective of reducing the undesirable increase in the rate of exfoliation in the manufacture of No-Label-Look labels.

Unexpected education is installed, which is above the growth rate of exfoliation in the manufacture of No-Label-Look labels can be significantly reduced if you apply acrylate dispersion adhesive, which added a minor amount of a suitable ultraviolet absorber.

The object of the present invention is therefore acrylate dispersion adhesive for the manufacture of laminates for No-Label-Look labels containing at least one ultraviolet absorber selected from the group consisting of an ester of benzoic acid and ether derivatives of benzoic acid, ester of cinnamic acid and ether derivatives of cinnamic acid, of benzophenone and benzophenone derivatives, octocrylene, avobenzone and derivatives of camphor.

Examples of preferred ether derivatives of benzoic acid include 4-tert-butylanisole, fenilsalitsilat, antifederalist, dibenzoylresorcinol, bis-(4-tert-butylbenzoyl)resorcinol, benzoylation, 2,4-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate, hexadecanoate, isononylphenol, octadecyl-3,5-di-tert-butyl-4-hydroxybenzoate, 2-methyl-4,6-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate or ethyl ester of 4-aminobenzoic acid.

Examples of preferred ether derivatives of cinnamic acid include ethyl ester 4-methoxycatechol acid, oktilovom ether 4-metatstatic the Oh of the acid, isoamyl ester of cinnamic acid or (2-ethyl)hexyl ester of cinnamic acid.

Preferred UV absorbers are also benzophenone and substituted derivatives of benzophenone, such as oxybenzone ((2-hydroxy-4-methoxyphenyl)-phenylmethanone) or dioxybenzone ((2-hydroxy-4-methoxyphenyl)-(2-hydroxyphenyl)-methanon). Further suitable are octocrylene or avobenzone manufactured under the trade name Parsol®1789, Eusolex®9020 or Escalol®517, but also camphor derivatives such as 4-methylbenzylidene.

Proposed in the invention acrylate dispersion adhesive contains mainly from 0.05 to 2 wt.%, preferably up to 1 wt.%, ultraviolet absorber. Thus, from 0.05 to 2 wt.% ultraviolet absorber, in terms of cured adhesive (concentration of dry matter), sufficient to provide a noticeable reduction in the growth rate of the delamination. In many cases, already enough concentrations up to 1 wt.%. The ultraviolet absorber may be added to the adhesive in pure form or in the form of an emulsion, respectively, of the variance.

According to the invention can be applied to all commercially available acrylate dispersion adhesive. Preferred are aqueous acrylate dispersion adhesive with a solids content from about 40 to 60 wt.%. Of no is from about 10 to 60 wt.% accounts for the variance of the polymer, for example, acrylate polymer, from about 0 to 50 wt.% the so - called dispersion of the substance (i.e. the variance of substances that increase the stickiness), introduced for the regulation of adhesiveness, from about 0.5 to 1.5 wt.% on wetting agents and from about 0.1 to 1.5 wt.% - on the non. In addition, the adhesive also contains a thickener and ammonia. Examples of standard acrylate dispersion adhesives, are preferred according to the invention are, for example, products CR 62, CR 23 and 220 BASF.

Another object of the present invention are laminates for No-Label-Look labels, including a film substrate or paper substrate, radiation utverjdenie antiadhesive separating the coating, the adhesive layer and the transparent printed material, the adhesive layer which contains proposed in the invention acrylate dispersion adhesive.

In one preferred embodiment, the present invention separates the coating contains epoxysilane, cured by a cationic mechanism, such as those available under the trademarks of G® RC 1402, RC 1403, RC 1406 and RC 1411 company Goldschmidt GmbH.

In another preferred embodiment of the present invention divisive floor contains siliconalley, hardened by radical mechanism, such that it is possible to purchase the tee under the trademarks of G® RC 902, RC 726, RC 711, RC 708, RC 709, RC and RC 715 706 of the company Goldschmidt GmbH.

The object of the present invention is, in addition, the method of obtaining the proposed in the invention laminates, comprising the following stages:

a) applying a separating coating on a film substrate or paper substrate,

b) applying the adhesive layer obtained in stage a) separating film, respectively separating paper and, if necessary, its cure,

c) laminating a transparent printed material deposited on a stage b) of the adhesive layer,

and the use of laminates according to the invention to obtain self-adhesive No-Label-Look labels.

Examples of carrying out the invention

To verify operational properties of a mixture of 70 parts TEGO®RC 902, 30 parts of TEGO®RC 711 and 2 parts TEGO®photoinitiator And 17 wore flat substrate (biaxially oriented polypropylene film, poly-M 514) and utverjdali the ultraviolet radiation generated by the mercury lamp, medium pressure, the corresponding lamps of the prior art, with a capacity of UV-irradiation 50 W/cm in an inert atmosphere of nitrogen with controlled residual oxygen content of less than 50 parts per million when the blade speed from 20 m/min. and the Amount deposited in each case was approximately 1 g/m2.

TEGO®RC 902, TEGO® RC 711 are standard siliconalley company Goldschmidt GmbH. Photoinitiator TEGO®17 is a standard photoinitiators company Goldschmidt GmbH. Film Poli-M 514 was obtained from the company Polinas (Turkey).

Received divisive film was covered with various dispersion adhesives coated with the dry mass (weight after drying) of about 20 g/m2. As glues were used CR 62, CR 23, as well As 220 BASF AG. Dispersion adhesives were applied as with the addition of the ultraviolet absorber according to the invention and without UV absorber. Then the glue was dried in a drying oven at a temperature of about 100°C and kasaravalli polyethylene film (Groflex 85 µm PE, transparent). The resulting laminate was then irradiated once, and eight laboratory UV lamp (80 W/cm), which was equipped with a conveyor system so that the lamp is moved with a speed of 10 m/min

Of the treated laminates was determined in the following figure divisive efforts.

Determination of the rate of exfoliation

To determine the rate of exfoliation used a strip of laminate width of 25 mm To measure antiadhesives this band recorded and then measured the force required to separate the corresponding laminate at a speed of 30 cm/min at an angle of exfoliation 180°. This force is designated as the section is the one power or the rate of exfoliation. The General procedure of the test corresponds to the test method No. 10 of the International Union of manufacturers and converters of self-adhesive products (FINAT).

The results are summarized in the following tables.

A 220 (BASF)
Table 1
The dependence of the result from the applied ultraviolet absorber
Apply glueUV absorber1The rate of exfoliation without UV irradiation (SN/2.5 cm)The rate of exfoliation after UV-irradiation (SN/2.5 cm)The rate of exfoliation after 8 times of UV irradiation (SN/2.5 cm)
CR 62 (BASF)-4815
CR 62 (BASF)(2-ethyl)-hexyl ester of 4-
methoxycatechol acid
4412
CR 62 (BASF)isoamyl ester of cinnamic acid448
-3921
A 220 (BASF)(2-ethyl)-hexyl ester of 4-methoxycatechol acid4817
CR23 (BASF)-4920
CR23 (BASF)(2-ethyl)-hexyl ester of 4-methoxycatechol acid3717
1The dry matter concentration of the ultraviolet absorber in glue = 0.6 wt.%

Table 2
The dependence of the concentration of the applied ultraviolet absorber
The concentration of the ultraviolet absorber1,2, % (wt.)The rate of exfoliation without UV irradiation (SN/2.5 cm)The rate of exfoliation after UV-irradiation (SN/2.5 cm) The rate of exfoliation after 8 times of UV irradiation (SN/2.5 cm)
04815
0,24512
0,4449
0,6448
1Apply glue: CR 62 (BASF)
2The concentration of solids in the glue used ultraviolet absorber: isoamyl ester of cinnamic acid

The results show that the addition of the adhesive of the ultraviolet absorber significantly reduces the growth rate divisive efforts.

1. Acrylate dispersion adhesives for laminates of transparent labels, containing from 0.05 to 2 wt.%, in terms of cured adhesive, at least one ultraviolet absorber selected from the group consisting of an ester of benzoic acid and ether derivatives of benzoic acid, ester of cinnamic acid and ether derivatives of cinnamic acid, benzo is none and derivatives of benzophenone, octocrylene, avobenzone and derivatives of camphor, and
derived ester of benzoic acid is selected from the group consisting of 4-tert-butylanisole, fenilsalitsilata, octyltrichlorosilane, dibenzoylresorcinol, bis-(4-tert-butylbenzoyl)resorcinol, benzoimidazole, 2,4-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate, hexadecanoate, isononanoate, octadecyl-3,5-di-tert-butyl-4-hydroxybenzoate, 2-methyl-4,6-di-tert-butylphenyl-3,5-di-tert-butyl-4-hydroxybenzoate and ethyl ester of 4-aminobenzoic acid;
derivative ester cinnamic acid selected from the group consisting of ethyl ester of 4-methoxycatechol acid, oktilovom ether 4-methoxycatechol acid, isoamyl ester of cinnamic acid or (2-ethyl)hexyl ester cinnamic acid;
derivatives of benzophenone selected from the group consisting of (2-hydroxy-4-methoxyphenyl)phenylmethanone, (2-hydroxy-4-methoxyphenyl)-(2-hydroxyphenyl)methanone,
and as camphor derivatives using 4-methylbenzylidene.

2. Acrylate dispersion adhesive according to claim 1, characterized in that the number contained in the ultraviolet absorber is up to 1 wt.%, in terms of cured glue.

3. Laminate for transparent labels containing film substrate or paper substrate, the radiation-utverjdenie antiadhesion the separating floor, the adhesive layer and the transparent printed material, characterized in that the adhesive layer contains an acrylic dispersion adhesive according to one of claims 1 to 6.

4. The laminate according to claim 7, characterized in that the separating floor contains epoxysilane, cured by a cationic mechanism.

5. The laminate according to claim 7, wherein the release coating contains siliconalley, hardened by radical mechanism.

6. The method of producing laminates to obtain self-adhesive transparent label that includes the following stages:
a) applying a separating coating on a film substrate or paper substrate,
b) applying the adhesive layer obtained in stage a) separating film, respectively separating paper and, if necessary, its cure,
c) caching transparent printed material deposited on a stage b) of the adhesive layer,
characterized in that for the application of the adhesive layer applied acrylate dispersion adhesive according to claim 1.

7. The use of laminates by one of p-5 to obtain self-adhesive transparent label.



 

Same patents:

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: physics, alarm.

SUBSTANCE: invention is related to the field of technical means of surveillance and alarm in different objects and may be used to monitor access to premises. Device comprises platform, which is immovable relative to premise door, end pusher and jacket, door closer, mechanical converter of figure-number into n-digit symbol code, unit of program installation and panel of n-digit symbol code presentation, connected to n outlets of mechanical converter of figure-number into n-digit symbol code, besides its control inlet is connected to outlet of program installation unit, end pusher is installed on fixed platform and is kinematically connected to complementing inlet of mechanical converter figure-number into n-digit symbol code, which is installed on internal side of premise door and is closed with jacket.

EFFECT: invention makes it possible to increase reliability and to expand temperature range.

1 dwg

FIELD: chemistry.

SUBSTANCE: present invention relates to heat resistant labels, which can be attached at temperature from 300°C to 1100°C and methods of making these labels. Proposed is a label which includes a main layer, a substrate and an adhesive layer, where the main layer of the label is a hardened coating film, obtained by depositing on the working surface of the substrate, a composition and heating the composition. The composition contains silicon resin (A), polymetalocarbosilane resin (B-1) and a solvent (C), in which the weight ratio (A) : (B-1) lies between 1:9 and approximately 9:1. The substrate is a metal foil. The adhesive layer contains a hardened coating film, which contains silicon resin (A) and at least one compound, chosen from a group comprising polymetalocarbosilane resin, zinc powder, tin powder and aluminium powder (B). The polymetalocarbosilane resin contains at least one metal, chosen from a group consisting of titanium, zirconium, molybdenum and chrome. Proposed also is a method of making the proposed label and versions of the label, thermally stable at 670-1100°C.

EFFECT: design of heat resistant labels for attaching to metal at high temperature.

21 cl, 23 tbl, 59 ex

FIELD: chemistry.

SUBSTANCE: invention relates to the binding agent for the adhesive composition which is a block-copolymer derived by means of controlled radical polymerisation that has specific composition, structure and is used to ensure adhesion in moist environment and contains at least one hydrophylic block and can be added into the adhesive composition meant for using in moist environment. The binding agent can be used in the adhesive compositions for a number of medical applications (protective, prosthetic devices) as well as for paramedical applications (protective, bandages) which should not unglue even under the influence of water. The binding agent for the adhesive composition insuring adhesion in moist environment is a block copolymer which has at least one hard hydrophylic block (B) that is non-operating phase, dispersed as nanodomain and at least one hydrophobus block (A) of elastomeric nature that is the main phase characterised with water absorbing capacity w(A), less 20%.

EFFECT: binding agent of the adhesive compositions for usage in dry and moist environment was prepared.

18 cl, 1 tbl, 11 ex

FIELD: mechanics.

SUBSTANCE: device (10) with protected information (16), for example, a code, an identifier, a personal identifying number (PIN -code) or another similar information, consists of item (20) with protected information (16) applied thereto, of opaque protecting sticker (14), concealing protected information (16) and of additional layer (30,32,42,46) applied between item (20) and protected information (16) and containing paint or lacquer layer (30,34,40) applied directly on item (20), at that an area of protecting sticker (14) is less than item area (20), while an adhesion property of additional layer (30, 32, 42, 46) with protecting sticker (14) at least at separate areas exceeds adhesion property of this layer with item (20). Also a method of the said item fabrication is presented.

EFFECT: increase of information protecting level.

36 cl, 5 dwg

FIELD: measuring technique.

SUBSTANCE: method intends for finding leading edge of spare labels roll. Location of first and then of the second label from multiplicity of labels is found, which labels are printed onto backside of spare labels roll. Then location of one of multiplicity of labels of beginning of form is found, which labels are printed onto backside of spare labels roll. Moreover, according to the method it is possible to determine if first label of multiplicity of labels has to be integral one on base of leading edge of spare labels roll. Location of first of multiplicity of labels is fund, location of the second label of multiplicity of labels is found and location of one of multiple labels is found as well. Method can be also applied to labels printing devices and to cassette containing g label roll. Method provides correct installation of first label in printer.

EFFECT: improved reliability; higher precision.

24 cl, 9 dwg

Infusion bag // 2281235

FIELD: packaging of substances, for instance, tea, which are intended to be infused in the package.

SUBSTANCE: infusion bag comprises shell filled with product and connected to plate-like gripping tag by means of flexible tie, as well as outer package. One side of gripping tag is provided with adhesive layer and is located from inner side of outer package to fix the package in collapsed position.

EFFECT: increased performance due to possibility of gripping tag securing to outer vessel wall, improved package fixation reliability and bag usage convenience.

2 cl, 2 dwg

The invention relates to means for monitoring the integrity of protected sites

The invention relates to information security, in particular to the identification of protective signs, intended for the protection of goods, securities and other products from fakes

FIELD: chemistry.

SUBSTANCE: resin contains a main component and a modifier. The main component contains at least one colophony-based resinous substance, having circular and spherical softening temperature of about 85-125°C. The modifier contains at least one colophony-based resinous substance having low softening temperature. The resin is characterised by circular and spherical softening temperature, with mean softening temperature of about 35-60°C. The resin is part of the composition of the pressure-sensitive hot-melt adhesive, which has a first component which is at least one styrene-butadiene block-copolymer and a second component which is at least one styrene-isoprene-styrene block-copolymer or a mixture of styrene-isoprene-styrene and styrene-isoprene block-copolymers. The pressure-sensitive hot-melt adhesive composition is used for an adhesive article having a front surface made from paper and cardboard materials and materials made from polymer films.

EFFECT: pressure-sensitive hot-melt adhesive composition has good tackiness, high cohesion strength and good rheological properties.

10 cl

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: chemistry.

SUBSTANCE: invention relates to an adhesive film for road surface. The adhesive film contains a carrier substrate which is a polymer film, a surface layer on the substrate surface made from a polymer film and a layer of pressure-sensitive hot-melt adhesive. The polymer film is based on polyvinyl chloride, polyamide, acrylic resins, high-density polyethylene, polypropylene and polyethylene vinyl acetate. The surface layer contains resinous non-asphalt material or material which contains about 50% or more resinous non-asphalt component and about 50% or less asphalt component. The surface layer can form a bond with the adjoining layer of asphalt road material when the surface layer is heated to about 120°C or higher at pressure which is applied to the material of the adhesive film on the side of superimposed layer of asphalt road material. The layer of asphalt road material has thickness of about 3.8 cm or more. The surface layer is not adhesive at temperature of about 20°C and pressure of about 1 atm. The adhesive film for road surface can be used particularly for repairing old road surfaces without tack coat.

EFFECT: improved technical properties of the adhesive film for road surface.

2 tbl, 3 ex, 15 dwg

FIELD: chemistry.

SUBSTANCE: self-adhesive material has a base - aluminium foil and an adhesive composition applied on said base, having permanent stickiness, containing the following in pts.wt: isoprene-styrene thermoplastic elastomer with 5-7% styrene content 100, an adhesive agent - terpene phenol resin, terpene styrene resin or mixture thereof with perchlorovinyl resin 10-15, plasticiser - epoxidated vegetable oil 7-10 and an organic solvent - ethyl acetate or mixture thereof with benzine and methylene chloride 250-550. The adhesive composition can additionally contain chlorinated polyisoprene rubber in amount of 2-5 pts.wt. The ratio of the thickness of layers the base: adhesive composition is equal to 1:(0.25-1). The self-adhesive material is meant for repair and use at temperatures ranging from -60 to +80°C in aviation, in motorcar and shipbuilding and other engineering fields.

EFFECT: high adhesion strength, cohesive strength of the self-adhesive material, high resistance to static shearing at high temperatures, low labour input and power consumption when carrying out repair works on the surface of aircraft frames and other structures.

3 cl, 2 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: disclosed is a method of producing a coated adhesive layer with improved optical characteristics, in which a curable composition containing curable organopolysiloxane is applied onto the surface of a substrate, and improved optical purity is achieved owing to that the composition contains a group of silicon dioxide particles having average size ranging from approximately 1 to approximately 7 micrometres. The invention also discloses a method of producing a multilayer article with improved inter-layer adhesion characteristics owing to reduction of the air space between layers, where the adhesive layer is obtained using the disclosed method, and the corresponding multilayer article.

EFFECT: higher optical purity of the coating adhesive layer and adhesion between layers in multilayer articles owing to virtually no air trapping when applying the adhesive layer.

20 cl, 6 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention discloses versions of water resistant, pressure sensitive adhesive acrylic polymers having volume-average particle size of at least 250 nm, formed during polymerisation in the presence of a surfactant in an emulsion of a mixture of monomers. Disclosed also are versions of labels having a frontal base and a pressure sensitive adhesive, which is one of the versions of the disclosed water resistant acrylic polymers.

EFFECT: disclosed polymers enable to obtain pressure sensitive acrylic based adhesives, which during coating and drying in form of a film become transparent and resistance to whitening when exposed to water.

44 cl, 1 dwg, 2 tbl, 16 ex

FIELD: chemistry.

SUBSTANCE: sheet contains base material and a pressure-sensitive layer. End-to-end holes which run from the front surface of the base material to the working surface of the adhesive layer are made in the pressure-sensitive adhesive sheet through laser thermal treatment. The base material used is material which, when heated at a rate of temperature increase of 20°C/min in a nitrogen atmosphere, temperature at peak thermal decomposition where thermal decomposition of this material is maximum does not exceed 450°C, and the difference between the peak thermal decomposition temperature of the base material and the melting peak temperature does not exceed 250°C. The base material is a film based on a synthetic resin, a foamed film or a laminated film.

EFFECT: prevention of capture of air and therefore prevention of formation of bubbles after gluing the sheet.

5 cl, 6 ex, 3 tbl, 10 dwg

FIELD: textile industry.

SUBSTANCE: tape includes film base and woven cloth that is arranged as a layer on one side of this film base and sticky layer arranged as a layer on the other side of this film base, besides total fill coefficient (CFtotal) calculated from fill ratios of both weft and warp that compose woven cloth makes from 500 to 1400, and one of warp fill ratios and weft fill ratios is in the range from 200 to 800. Also textile product is described, in which part of sewn part is treated with application of specified sealing tape. At the same time textile product is produced by means of sewing or fusing of laminated product from cloth.

EFFECT: improved water impermeability of sealed part, appearance, reduction of weight.

23 cl, 9 dwg, 4 tbl, 25 ex

Tape glue // 2381249

FIELD: oil-and-gas industry.

SUBSTANCE: invention related to manufacturing of gluing compositions, used for sticky polyvinylchloride (PVC) tapes, assigned for oil-gas pipelines cover as an insulating protection cover. Described tape glue, containing perchlorvinyl resin, plasticisers- diactil phthalate and chlorinated paraffin or chlorated α-olefins, received from ethylene oligomerisation waists, colophony, polyethyleneamines and chalk or zeolite fractions or granular limestone as a filling agent.

EFFECT: increase of sticky polyvinylchloride tapes adhesion to steal, cost saving.

2 cl, 1 tbl, 17 ex

FIELD: chemistry.

SUBSTANCE: sheet has a base and a pressure sensitive adhesive layer. Material of the base has the following characteristics: surface roughness (Ra) not less than 0.03 mcm, lightness value (L*) in colour scheme L*a*b* not greater than 60 if the colour index (C*) is not greater than 60, lightness value (L*) not greater than 85 if colour index (C*) is not greater than 60, and contrast coefficient not less than 90%. The pressure sensitive adhesive layer has several through-openings passing from one surface to the other surface of the pressure sensitive adhesive sheet. The openings are made using a laser beam with distribution density ranging from 30 to 50000 openings per 100 cm2. The fused parts formed when processing with the laser have outer diametre of not greater than 50 mcm. Thermally deformed parts around the fused parts have outer diametre of not greater than 180 mcm.

EFFECT: obtained adhesive sheet prevents formation of air bubbles and swelling when stuck on various surfaces.

3 cl, 17 ex, 5 dwg

FIELD: chemistry.

SUBSTANCE: acrylic copolymer, consisting of a plurality of copolymerisable monomers comprising at least one ethylenically unsaturated carboxylic acid with ethylene bonds is obtained via free-radical emulsion copolymerisation. The pressure sensitive adhesive acrylic polymer is neutralised with at least one hydroxy-functional amine to pH higher than 4.5. The pressure sensitive adhesive composition can be removed under the action of an aqueous caustic solution at temperature of at least 50°C. The pressure sensitive adhesive composition is suitable for high-speed deposition on a polymer film in form of a coating. A label with an adhesive layer from the pressure sensitive adhesive composition is capable of sticking to the cylindrical curved surface of an article. The removable polymer label is used on reusable containers.

EFFECT: as a result of using the pressure sensitive adhesive composition, polymer film-type labels can be quickly and completely removed from a surface by washing, while preserving their excellent aesthetic and mechanical properties.

26 cl, 5 tbl, 19 ex, 8 dwg

Up!