Layered products (B32)

B32            Layered products(4122)

Composite bullet-resistant uniform material and method of its manufacture // 2642797
FIELD: weapons and ammunition.SUBSTANCE: material is formed as an intersecting composition of N double-layered structured unit elements, where 1≤N≤8, an organic thin film attached to both sides thereof; wherein the intersection angle of each adjacent layer is 45-90°. The first layer is a fibrous bullet-resistant tape with a unidirectional fibre orientation coated with the first polymeric adhesive. The second layer is a fibrous bullet-resistant tape with a unidirectional fibre orientation coated with the second polymeric adhesive. The tension modulus of the first polymeric adhesive is less than 6 MPa, and the tension modulus of the second polymeric adhesive is greater than 6 MPa. The loss modulus of the first polymeric adhesive and the second polymeric adhesive under the same conditions is the same as the loss modulus of the bullet-resistant fibre.EFFECT: invention ensures creation of a soft composite bullet-resistant uniform material that has acceptable hardness and increased bullet resistance.16 cl, 2 tbl, 1 dwg
ethod of applying hydrophobic and oleophobic coating to textile material and textile material with hydrophobic and oleophobic coating // 2642775
FIELD: textile, paper.SUBSTANCE: method for applying a hydrophobic and oleophobic coating to a textile material includes holding the textile material in a copolymer solution in supercritical carbon dioxide in a high pressure reactor, characterized in that said solution contains a copolymer containing fluorinated (meth)acrylic hydrophobic units affine to CO2, and (meth)acrylic functional units containing a functional group, and a cross-linking agent containing at least two functional groups reactive with the functional groups of the copolymer, said cross-linking agent being not part of said copolymer. The invention also relates to a textile material with a hydrophobic and oleophobic coating, having a wetting angle with a drop of water ≥130°, the index in the water-repellent ability test ATCC 22 is above 90 points, the index in the oil resistance test AATSS 118 is 6 points or higher, the vapour permeability in the vapour permeability test according to the standard ATSM E 96 (Procedure B) after modification not less than 0.95 from the result of the unmodified material, retaining water-repellent and oil-repellent properties and vapour permeability after 10 or more washes in a washing machine, carried out according to the standard ISO 6330 procedure, procedure 6A, obtained by the method according to the invention.EFFECT: method according to the invention makes it possible to obtain a textile material with a hydrophobic and oleophobic coating resistant to repeated washing cycles in a washing machine.18 cl, 2 dwg
ultilayer protective element and method of its obtaining // 2642535
FIELD: physics.SUBSTANCE: multilayer protective element contains an optically transparent film, on one side of which a layer with a regulated adhesion is applied, a thermoplastic polymer composition for forming micro - and nano-relief elements of the flat optics by the embossment, and an embossed rainbow hologram, a layer with a high refractive index. In the thermoplastic layer, the embossing method forms a relief of the diffraction structure organized by the type of a reflective phase diffraction grating. On top of the layer with a high refractive index, an information layer with obvious and hidden elements is applied, then a photopolymeric layer with a bulk record of the interference structure is applied, on top of which a layer of the paint composition and an adhesive layer are consistently applied.EFFECT: increasing not less than twice the degree of identifiability, security, reliability of visual inspection of the authenticity and integrity, the essential difficulty of forgery, the high durability and efficiency of protective properties.10 cl
ultilayer aluminium sheet for flux-free high temperature brazing in controlled atmosphere // 2642245
FIELD: metallurgy.SUBSTANCE: multi-layer sheet for flux-free high temperature brazing comprises an aluminium alloy core coated with intermediate layer of aluminium alloy, and solder of aluminium alloy applied on the intermediate layer. The core is made of 3XXX aluminium alloy containing, wt %: Mn<2.0, Cu≤1.2, Fe≤1.0, Si≤1.0, Ti≤0.2, Mg≤2.5, Zr, Cr, V and/or Sc in total ≤0.2, the rest is Al and unavoidable impurities. The intermediate layer is made of aluminium alloy containing, wt %: Mg 0.2-2.5, Mn <2.0, Cu≤1.2, Fe≤1.0, Si≤1.0, Ti≤0.2, Zn≤6, Sn≤0.1, In≤0.1, Zr, Cr, V and/or Sc in total ≤0.2, the rest is Al and unavoidable impurities. The solder is made of an aluminium alloy containing, wt %: Si 5-14, Mg<0.02, Bi 0.05-0.2, Fe≤0.8, Zn≤6, Sn≤0.1, In≤0.1, Cu≤0.3, Mn≤0.15, Sr≤0.05, the rest is Al and unavoidable impurities. The core material and the intermediate layer have higher melting point than the solder, and the intermediate layer is protective relative to the core. The total thickness of the cladding layer consisting of the intermediate layer and solder layer with respect to total sheet thickness is 3-30%. Soldering can be carried out in inert or reducing atmosphere without necessity of for applying the flux.EFFECT: possibility for soldering complex designs with corrosion potential.16 cl, 2 tbl
ethod of producing high-strength corrosion-resistant plaque steel // 2642242
FIELD: metallurgy.SUBSTANCE: method of producing high-strength corrosion-resistant plaque steel plates includes hot rolling at a temperature of not more than 1250°C with its end at temperatures above 880°C, coiling a strip at a temperature of 570-660°C. The basic layer is made of low-carbon steel, micro-alloyed by molybdenum and titanium, facilitating interphase nanosized carbide and carbonitride precipitations, and the cladding layer is made of corrosion-resistant austenitic steel, the composition of which satisfies the condition for CrEq/NiEq≤1.6. The chromium equivalent is CrEq=%Cr+1.37%Mo+1.5%Si+2%Nb+3%Ti, and the nickel equivalent is NiEq=% Ni+0.31%Mn+22%C+14.2%N+%Cu.EFFECT: provision of stable high values of strength, plasticity, cold resistance, corrosion resistance, continuity of layer interconnection and weldability.2 cl, 2 tbl, 2 ex

High-quality fire resistant decorative finishing coating for inner panels // 2642217
FIELD: construction.SUBSTANCE: for finishing a panel, a filling material containing an agent for imparting fire resistance is applied to the panel surface to form a filled panel surface. Then the filled panel surface is smoothed. Thereinafter, a pattern or image is printed on one side of a polymer film containing a first polymeric material, and attach the other side of the polymer film to the smoothed filled panel surface by means of the binder. The polymer film is then coated with a coating material containing a second polymeric material.EFFECT: reducing labour intensity of manufacture, providing high-quality decorative fire-resistant finishing of inner panels.15 cl, 3 dwg

Composite hat-shaped stiffening cross-section, composite stiffened hat-shaped cross-section of pressure bulkheads and methods of their manufacture // 2641959
FIELD: technological processes.SUBSTANCE: composite hat-shaped stiffening cross-section comprises of a composite hat-shaped portion having the first side and the second side, a plurality of composite stiffening layers, a pair of noodle-shaped radius fillers connected to the composite hat-shaped portion and interposed between the plurality of composite stiffening layers and an outer layer connected to the second side of the composite hat-shaped portion. The plurality of layers includes a primary layer connected to the first side of the composite hat-shaped portion, a wrapping layer connected to the primary layer and a base layer connected to the primary layer and the wrapping layer.EFFECT: reduction of tearing load, increase of structural stability.15 cl, 14 dwg

ethod of manufacturing of tank for storage and transportation of oil, petroleum products and liquefied natural gas // 2641922
FIELD: oil and gas industry.SUBSTANCE: invention relates to the field of storage and transportation of oil, petroleum products (PP) and liquefied natural gas (LNG) and can be used in the production of LNG storage and transportation tanks. Method of manufacturing the tank for storing and transporting petroleum, PP and LNG consists in applying a reflective film to the outer surface of the tank, comprising three layers: an epoxy layer (primer), a hot-melt (adhesive) polymer sublayer, and a light-reflective layer.EFFECT: invention makes it possible to significantly reduce negative effect of solar energy on protected objects, including tanks for storage of liquefied natural gas.2 cl, 3 dwg

Glass products with anti-friction coatings // 2641817
FIELD: chemistry.SUBSTANCE: coated glass product is described comprising: a glass body comprising the first surface and the second surface opposite the first surface. The first surface is an outer surface of the glass products; and an anti-friction coating located in at least the first part of the surface of the glass body. The anti-friction coating includes a polymer chemical compound, the anti-friction coating has a thickness equal to or less than 1 micron, and a friction coefficient equal to or less than 0.7 compared to the same coated glass product. The polymer chemical compound is selected from the group consisting of polyimides, fluoropolymers, silsesquioxane-based polymers, silicon-organic polymers; the coated glass product retains its heat resistance after depirogenization at a temperature of at least 280°C for 30 minutes in air; the light transmission through the coated glass product is equal to or more than 55% of the light transmission through the uncoated glass product with the wavelength of 400 nm to 700 nm; and the anti-friction coating has a weight loss of less than 5% of its weight when heated from a temperature of 150°C to 350°C at a heating rate of 10°C/min. Other coated glass products are also described.EFFECT: glass products with a high resistance to mechanical damage are produced.18 cl, 1 tbl, 21 ex, 46 dwg
Compositions of glass and fibre produced therefrom // 2641808
FIELD: chemistry.SUBSTANCE: versions of the present invention relate to glass compositions, glass fibres moulded from such compositions and intended for the production of composites and fibreglass. In one version, the glass composition includes, wt %: 58-62 SiO2. 14-17 Al2O3, 14-17 Al2O3, 14-17.5 CaO and 6-9 MgO, where the amount of Na2O is 0.09 wt % or less, as well as, at least, one rare earth oxide in an amount of 0.1-0.3 wt %. The glass composition is substantially free of B2O3.EFFECT: improving the mechanical properties of fibres.22 cl, 2 tbl, 22 ex

Tube, obtained by extrusion blow moulding // 2641746
FIELD: technological processes.SUBSTANCE: tube is made by extrusion blow moulding and filled or can be filled through its rear end. The tube has a casing, an arm and a neck, which are made in one piece by means of extrusion blow moulding. The tube has a layer with a high LLDPE content of 50 to 95 wt %. The average thickness of the tube wall in the casing area is from 0.3 to 0.85 mm. The method for manufacturing a tube includes extruding a tubular blank and blowing it to form a bottle-like product.EFFECT: ensuring the production of a tube optimized for transparency and shape recovery effect.21 cl, 2 dwg
Layer hybrid composite material and the product made of it // 2641744
FIELD: construction.SUBSTANCE: composite material contains external and internal layers of Al-Li alloys and layers of fiberglass based on adhesive prepregs with reinforcing filler. As outer layers, Al-Li sheets of 1-2 mm. As internal layers, Al-Li sheets with a thickness of 0.3-0.5 mm in an amount not less than three. Layers of fiberglass, located under external Al-Li layers are made on the basis of glutinous prepreg on satin weave fiberglass reinforcing fillers content not more than 40 per cent of the bulk.EFFECT: increasing the resource, the bearing capacity for compression and the weight efficiency of products.7 cl, 1 dwg, 3 tbl, 1 ex

ixtures, methods and compositions related to conducting materials // 2641739
FIELD: chemistry.SUBSTANCE: compositions are materials having an electrically and/or a thermally conductive coating. Mixtures and methods can be used to produce transparent conductive films and other transparent conductive materials. The mixture for preparing the conductive layer comprises a) at least, one alcoholic solvent; b) at least, one ester solvent; c) at least, one cellulose ether solvated therein; and d) metallic nanowires uniformly dispersed in the said mixture, the said, at least, one alcoholic solvent being 60% or more by volume of the said mixture. Specified, at least, one ester solvent is not more than 30% by volume of this mixture, and the specified alcohol solvent selected from the group consisting of methyl alcohol, isopropyl alcohol and mixtures thereof, and the said ester solvent is selected from the group consisting of methyl acetate, ethyl acetate, butyl acetate, and isopropylacetate.EFFECT: improved composition properties.37 cl, 4 tbl

Lamination of ammonium octamolybdate (aom) // 2641735
FIELD: chemistry.SUBSTANCE: substrate is covered with ink composition comprising salt of transition metal oxyanion, and laminated at the top with the thermoplastic polymer layer through the melt extrusion or laminated with the pre-manufactured polymer film on the surface coated with the ink composition, where the ink composition is between the substrate and the thermoplastic polymer layer.EFFECT: effective activation of the ink composition and labelling of the substrate without damaging the thermoplastic polymer coating layer of the ink composition.22 cl, 1 dwg
ethod of gluing thin adhesive layers // 2641734
FIELD: technological processes.SUBSTANCE: method includes applying to the first substrate of an adhesive with a layer weight of less than 2 g/m2. The second substrate is a film of thermoplastic synthetic material. The surface of the second substrate is transferred to the softened state by heating up to a temperature in the range of +/-40°C from the softening point of the second substrate. Immediately after heating, the substrates are glued together by applying pressure.EFFECT: fast and reliable gluing when using a small amount of adhesive.11 cl, 1 tbl

Construction of composite material // 2641733
FIELD: human vital needs satisfaction.SUBSTANCE: invention relates to a construction of a composite material comprising: the first face plate and the second face plate arranged opposite each other, made of a composite material; and a corrugated core connected to the first and second face plates, wherein the corrugated core comprises at least one opening.EFFECT: creating construction of a composite material with a smaller number of components, but having sufficient rigidity.8 cl, 19 dwg

Fuel tank, main wings, aircraft body, flying vehicle and vehicle // 2641404
FIELD: aviation.SUBSTANCE: fuel tank comprises a structural element using carbon fibre reinforced plastic (CFRP) (15) including reinforcing material containing carbon fibre and matrix that contains plastic. The structural element is formed by rolling conducting sheets (17) between prepreg sheets from reinforced carbon fibre reinforced plastic (CFRP) (15) and formed with a fastening hole (22), in which the bolt is fixed.EFFECT: necessity for application of sealant is eliminated, reduced labour input and reduced costs associated with quality control, prevention of weight gain.6 cl, 8 dwg
Pregelatinised starch with average viscosity range, and product, suspension and methods related to specified starch // 2641350
FIELD: construction.SUBSTANCE: slab contains: a core of hardened gypsum, located between two covering sheets. The core is derived from a slurry containing a construction gypsum, water and at least one pregelatinized acid-modified starch. The said pregelatinised acid-modified starch has a viscosity of about 20 to about 500 cps. The viscosity is measured when the pregelatinised acid-modified starch is in the conditions according to the VMA method. The pregelatinised acid-modified starch is present in an amount of from about 0.5 to about 3% by weight of the construction gypsum. For suspension requires increased water consumption to maintain fluidity of suspensions at the same level, which would be without pregelatinised acid-modified starch. The increase was less than the increase in water consumption required for the otherwise identical suspension containing starch having viscosity higher than 500 centipoises depending on VMA, instead of pregelatinised acid-modified starch, and plate core has a hardness of at least 11 pounds (5 kg), measured according to ASTM standard with 473-10. The invention is developed in the dependent claims of the invention formula.EFFECT: improving the operational properties of the slab.18 cl, 2 dwg, 25 tbl, 15 ex

ethod of producing steel parts with high-productivity coating hardened in press // 2641279
FIELD: metallurgy.SUBSTANCE: invention relates to a pre-coated sheet or a workpiece comprising a steel substrate for heat treatment, which is overlapped by a preliminary coating over at least one section of at least one of its main surfaces. The pre-coating comprises at least one layer of aluminium or an aluminium alloy, covered over at least one section of above-mentioned pre-coating by a polymerized layer having thickness of 2-30 mcm. The polymerized layer consists of a polymer which contains no silicon and which nitrogen content does not exceed 1 wt % in terms of the weight of the above-mentioned layer. The above-mentioned polymerized layer contains carbon-containing pigments in an amount of 3-30 wt % in terms of weight of the said layer.EFFECT: enhancement of coating reliability.22 cl, 9 dwg, 9 tbl, 4 ex

Power stress boxes and methods to obtain them // 2641026
FIELD: airpower.SUBSTANCE: power stress box contains upper and lower composite complex sandwich panels. Panels include sheet casings forming a sandwich structure with one or more aggregates and adjacent dense packages oriented in the axial direction. The stress box additionally contains plenty spars. Each spar has a wall and wall fastening elements and the long side of the spar is located in the axial direction. Plenty spars are connected to the panels with wall fastening elements located near the dense packages. Sheet casings are made with the ability to withstand the main torsional and compressive loads under shear and inessential axial loading. Dense packages are designed to withstand the entire substantial bend of box under axial tensile and compressive loading. The air vehicle comprises a power stress box. The method is for producing bonded stress box for an air vehicle.EFFECT: improved composite bonded stress boxes for an air vehicle.25 cl, 13 dwg

Packing material and container, produced from such material // 2640981
FIELD: packaging industry.SUBSTANCE: packing material comprises of one or more layers of laminated plastic, the first side, the second side and a penetration zone (40). From the penetration zone (40), two attenuation lines (30, 30b) extend to form a space therebetween, thereby forming an opening in the packaging material. The packaging material comprises of a plastic opening device in which the first and second parts are attached to the first and second side respectively and through the penetration zone (40) passes the bridge (45) of the material. The second part covers at least partially the penetration zone and contains a guide segment (46), which runs from the penetration zone (40) over the space adjacent to the attenuation lines (30, 30b), to facilitate the gap, essentially, in at least one of the attenuation lines.EFFECT: increased strength.14 cl, 4 dwg

Selectly weakened expansion films // 2640758
FIELD: technological processes.SUBSTANCE: film contains a number of unweakened parts; at least one pair of weakened parts and at least one weakened area extending between the pair of weakened parts, wherein the weakened parts and said at least one weakened area have at least one characteristic that is worse than the characteristic of said plurality of unweakened parts.EFFECT: creation of a film for a composite product, which allows improving its ballistic characteristics.15 cl, 25 dwg

Fire-protective thermal insulation panel // 2640555
FIELD: construction.SUBSTANCE: fire-protective thermal insulation panel comprises an outer layer, thermal insulation layers and an inner layer located behind it, and is characterised in that the outer layer is made with lateral sides of inorganic glass fibre plastic with outer heat-resistant hydrophobic and inner heat-resistant metal-containing coatings; the inner thermal insulation layers are made in the form of packages of microspheres, between which an interlayer of copper foil is arranged; the inner layer is made of microspheroidal glass-cloth-base laminate and connected to the lateral sides of the outer layer; the outer heat resistant hydrophobic coating comprises heat resistant silicone putty, an enamel and a sublimating hydrophobic teflon varnish; the heat-resistant metal-containing coating is represented by silicone enamel with aluminium paste. The inner layer of microspheroidal glass-cloth-base laminate is joined to the lateral sides by means of a fluorosiloxane or silicone sealant.EFFECT: non-combustible reusable panel with high thermal insulation properties provides the temperature reduction from 1100 degrees on the outer surface up to 50 degrees on the inner surface.2 cl, 1 dwg

Composite reinforcing yarn, prepreg, tape for 3d printing and installation for their production // 2640553
FIELD: chemistry.SUBSTANCE: composite reinforcing yarn contains a roving of reinforcing fibers impregnated with a thermosetting binder, with a cross-section in the form of a circle with the diameter of 0.1-0.7 mm or ellipse with the ellipticity of 1 to 2 and the largest diameter of 0.1-0.7 mm. Impregnated roving is subjected to a temperature treatment until the thermosetting binder is completely cured. From the filament, prepreg is obtained by adding a thermoplastic binder. The tape is obtained by joining the yarn or prepreg with jumper wires made of thermoplastic material. The yarn is produced in an installation containing a bobbin, on which a coil with roving of reinforcing fibers or reinforcing and functional fibers is installed, an impregnating device, two heat treatment chambers, a ready-made filament receiving unit, a receiving coil. The temperature in the first chamber is 70-130°C, in the second chamber - 160-400°C. To produce the prepreg, a thermoplastic coating device is added to the installation to impregnate the thermosetting binder and fully cured roving.EFFECT: invention allows to reduce the complexity of producing parts with a thermoplastic matrix, the duration of producing the product; increasing the shelf life of raw materials and the efficiency of producing the products from composite materials.13 cl, 6 dwg
Biodegradable film and laminate // 2640243
FIELD: chemistry.SUBSTANCE: biodegradable film comprises PHA and PLA, wherein the PLA content is 1-95 wt %, where PHA is PHB or PHV or a copolymer or a mixture of PHB and PHV, wherein PHB is P(3HB-co-4HB) polymerized with 3HB and 4HB, and the molar percentage of 4HB is in a range of 5 to 85%. The biodegradable film further comprises a cellulose fibre. The invention also relates to biodegradable laminate that contains PBAT or PBS or a mixture thereof and the said biodegradable film.EFFECT: laminates are characterized by a stronger biodegradability in a medium containing microorganisms and are characterized by a good shelf life and good strength, rapid adaptation, and flexibility.20 cl, 12 tbl

ultilayer laminated material for manufacture of heat-insulating panels // 2640229
FIELD: construction.SUBSTANCE: multilayer laminated material (10), containing the first layer (11) made from a mixture of polymers containing polyethylene terephthalate and material chosen from a low-density polyethylene, medium density polyethylene, high density polyethylene or polypropylene, the second layer (12), made from a specified mixture of polymers, and the third layer (13) located between the first and second layers (11, 12). The specified third layer (13) is made from a specified mixture of polymers with the addition of glass fibres and the polymer blend contains between 6 to 14 wt % of one of a low-density polyethylene, a medium density polyethylene, a high-density polyethylene or polypropylene, and the rest is a polyethylene terephthalate. A heat-insulating panel is also described.EFFECT: material for use in a chemically aggressive environment, cheaper than fiberglass, is proposed.6 cl, 3 dwg

ethod of obtaining radiation-modified polymer coating on steel pipe and steel pipe with radiation-modified polymer coating // 2640228
FIELD: machine engineering.SUBSTANCE: method of obtaining radiation-modified polymer coating on steel pipe comprises applying at least one primer layer on the surface of the steel pipe, applying at least one adhesive layer on the primer layer, with the subsequent applying of at least one polymer layer based on a polymer selected from the group: polyolefins, polysilicones, polyamides, synthetic rubbers on the adhesive layer and radiation modification of the coating with at least one electron accelerator with radiation dose of 1-100 Mrad at a ratio of the speed of movement to the pipe rotational speed equal to 0.1-5.0. The invention also refers to the method of obtaining radiation-modified polymer coating on the steel pipe comprising applying at least one primer layer on the surface of the steel pipe, with the subsequent applying of at least one polymer monolayer comprising a polymer selected from the group: polyolefins, polysilicones, polyamides, synthetic rubbers and a glue composition based on polyolefins, and radiation modification of the coating by means of at least one electron accelerator with radiation dose of 1-100 Mrad at a ratio of the speed of movement to the pipe rotational speed equal to 0.1-5.0 and the steel pipe with a radiation-modified polymer coating containing the coating based on the layers obtained by any of these methods. The coating is radiation-modified with the help of at least one electron accelerator.EFFECT: increase of impact strength of coating penetration resistance, adhesion strength and stability of polymer coating adhesion during long operation of pipes.3 cl, 4 dwg, 1 tbl

Conveyor belt // 2640159
FIELD: transportation.SUBSTANCE: conveyor belt consists of a carrying covering layer, an interply rubber layer located directly below the carrying covering layer, a strengthening layer, including steel cords embedded in polychloroprene and located directly below the interply rubber layer, and a traction covering layer located directly below the strengthening layer. The interply rubber layer is a mixture that consists of 40 to 90 phr of polyvinyl chloride and from 10 to 60 phr of acrylonitrile rubber. The traction covering layer consists of a rubber polymer. The carrier coating layer consists of a urethane rubber based on polyethers, capable of milling, which includes places for forming a transverse bond.EFFECT: increasing the belt resistance to surface abrasion is increased.19 cl, 2 tbl, 2 dwg

Steel sheet with zinc coating // 2640111
FIELD: metallurgy.SUBSTANCE: steel sheet contains at least one layer of zinc. Said layer is applied by means of vapour-jet deposition at a sonic speed by means of ejection chamber. The ratio between the Pc pressure inside the coating chamber and Pe pressure inside the chamber for ejection of zinc is 2⋅10-3-5.5⋅10-2. According to the second version, the Pc pressure maintained within the chamber for the application of coating is 6⋅10-2-2⋅10-1 millibar.EFFECT: improved sheet properties.8 cl, 3 dwg, 2 tbl
Film barrier for diffusion of isocianate monomer // 2640073
FIELD: chemistry.SUBSTANCE: first film layer A1 is formed from Composition A1 comprising a polyethylene and hydroxyl (OH)-functionalized polymer on an ethylene base; and B. The second film layer B is formed from Composition B containing at least one isocyanate in its composition. The invention also relates to a multilayer film comprising in its composition at least two layers A2 and B: A2. The first film layer A2 is formed from Composition A2 comprising linear low-density polyethylene and an anhydride-functionalized polymer on an ethylene base; and also B. The second film layer B is formed from Composition B containing at least one isocyanate in its composition. The invention relates to articles consisting of the said multilayer film, which are food containers, bags for keeping and/or storing food.EFFECT: improving the compound properties.11 cl, 3 tbl

Laminated colour-forming composition // 2640067
FIELD: chemistry.SUBSTANCE: colouring composition includes a thermally activated acid generator and halochromic leuco dye. Thermally activated acid generator selected from the group consisting of salts of amines and organometallic compounds containing boron or silicon, and neutralized amine derivatives of polyalkyl naphthalene polysulfonic acid. The coated substrate also covers the thermoplastic polymer layer such that the dye composition is between the substrate and the thermoplastic polymer layer and/or in the thermoplastic polymer layer.EFFECT: protecting the dye composition from discolouration during lamination by melt extrusion and increasing the impermeability of the substrate to liquids.20 cl, 1 dwg, 3 tbl, 10 ex

Composite products containing fiber with longitudinally changing configuration // 2640061
FIELD: technological processes.SUBSTANCE: structural composite product contains a matrix and fibers embedded in the matrix. Each fiber has a length and configuration, the fiber configuration varies along its length. The fibers are disposed nearby to each other to form a layer; at least a part of the fibers of the layer comprises a sequence of the first parts and the second parts; and the fibers are arranged such way that the second parts of one of the fibers are at least partially interfaced with the first parts of the adjacent fiber layer. A method of manufacturing a structural product and a method of loading a vehicle's structural product are also described.EFFECT: creating a composite structure in which the movement of fibers in the matrix can be controlled to improve its ballistic and optical characteristics.13 cl, 23 dwg
Water binding agent for use in thermal welding // 2639157
FIELD: chemistry.SUBSTANCE: applying water dispersion in lacquer of heat welding for welding aluminium surfaces with polystyrene, PET (polyethylene terephthalate), PLA (polylactic acid) or PVC (polyvinyl chloride) differs in that the lacquer for thermal welding is applied before welding in a single layer to the surface of aluminium, that the specified lacquer for thermal welding, at least, 50 wt % consists of water dispersion. This aqueous dispersion has the first polymer phase with a glass transition temperature between -20 and 30°C and the second polymer phase with a glass transition temperature between 20 and a value below 50°C, the second polymer phase containing, in terms of the sum of both polymer phases, 2 to 10 wt % of (meth) acrylic acid capable to copolymerize with (meth) acrylates.EFFECT: surfaces of these polymers are concatenated with aluminium without the use of primer coating, aqueous dispersions have a suitable drying time, and afterwards have a good resistance to adhesion.11 cl, 3 tbl, 14 ex

Fabric with organosilicone base of optics // 2638985
FIELD: textile, paper.SUBSTANCE: method includes the steps of: feeding the organosilicone material and the fibrous material; wetting the fibrous material with the organosilicone material; hardening of the organosilicone material so that the fibrous material is partially immersed in the organosilicone material; feeding a textile-based element; and fixing the organosilicone-based element to the textile-based element with a binder, and the mentioned fibers in the fibrous material strengthens the bond between the organosilicone-based element and the textile-based element. In addition, a product made in such a way is offered.EFFECT: invention allows to create a product particularly suitable for application on the leather due to the high biocompatibility of the organosilicone compound, in particular polydimethylsiloxane.13 cl, 7 dwg

Transparent product with moisture sensor // 2638864
FIELD: measuring equipment.SUBSTANCE: product includes one or more moisture sensors, monitoring the moisture penetration to control the performance of the moisture-resistant barrier. The moisture sensor includes a moisture-corroding object or sensor element, for example a strip or wire, the resistance of which varies depending on the corrosion. The sensor may also include two dissimilar metals, for example a bimetallic sensor, or two similar metals having different physical dimensions.EFFECT: invention provides the creation of a product with a sensor for monitoring moisture penetration, which allow to control the performance of the windscreen, the characteristics of which are outside the permissible limits.20 cl, 13 dwg
ethod of gluing with foil // 2638394
FIELD: chemistry.SUBSTANCE: adhesive composition is applied on a water basis to the surface of the metal foil. The applied layer of the adhesive composition is dried. The surface of the polymer film is brought into contact with the resulting layer of the dried adhesive composition. The water-based adhesive composition comprises (i) an aqueous medium; (ii) one or more isocyanates dispersed in the said aqueous medium, and (iii) one or more functional groups containing silanes dispersed in the said aqueous medium.EFFECT: invention makes it possible to increase the strength properties, which is important in the preparation of various laminates.7 cl, 8 tbl, 8 ex

Heat-resistant fire-resistant material // 2638335
FIELD: construction.SUBSTANCE: invention can be used in the manufacture of protective clothing designed for operation in high-risk conditions and resistant to aggressive media, in particular to a material ensuring the protection from thermal risks, sparks, and metal spatter. A heat-resistant fire-resistant multilayer material with polymer coating is described, consisting of one and a half layers of a fabric made from para-aramide fibre threads, in which the fabric is characterized by interlacing with a repeat, equal to 4 threads by the warp and to 8 threads by the weft, for the building of which more than one system of weft threads is used. The spaces between the threads are less than their diameter with the surface material density not less than 320 g/m2, and the heat-resistant polymer coating of the fabric is made on the basis of fluorine rubbers and/or a silicone composition.EFFECT: fire-resistant multilayer material based on para-aramide fibre and a polymer binder with the possibility of operation in corrosive media has been obtained.3 cl, 1 dwg, 1 tbl

Polymers based on ethylene and products produced from them // 2638261
FIELD: chemistry.SUBSTANCE: polymer containing from 80.0 to 99.0 wt % of polymer links formed from ethylene and 1.0 to 20.0 wt % of polymer layers, formed from one or more C3-C20-α-olefin comonomers, is suitable for the production of films in the process of forming a tubular film when the degree of the bulge (BUR) of 3.0 to 8.0, and the ratio for the length of the neck (NHR) of 2.0 to 12.0. In addition, the ethylene-based polymer has a local maximum of the loss angle for the complex modulus, G*, equal to 2.50×104 up to 1.00×106Pa, and the local minimum of the loss angle with the complex modulus, G*, equal to 1.00×104 up to 3.00×104 Pa.EFFECT: films have excellent shrinkage and tear characteristics.22 cl, 2 dwg, 4 tbl, 33 ex

Phosphorus-containing polymer, product and method for their production // 2638212
FIELD: chemistry.SUBSTANCE: ferrous phosphorus-containing polymer contains a plurality of phosphorus atoms, with about 75% or more of the phosphorus atoms in the phosphorus-containing polymer present in the phosphine oxide fragments. The product comprises a textile material having, at least, one surface and a phosphorus-containing polymer located on, at least, a portion of the surface, the phosphorus-containing polymer containing a plurality of phosphorus atoms, and about 75% or more of the phosphorus atoms in the phosphorus-containing polymer are in the phosphine oxide fragments.EFFECT: method improvement.30 cl, 4 dwg, 5 tbl

Composite sound absorbing material and method of its production // 2637958
FIELD: technological processes.SUBSTANCE: method comprises the preparation of a foamed polyurethane composition by mixing a prepolymer and polyisocyanate groups, forming a back portion of a sound absorbing material in the form of a layer of a polyurethane composition having the thickness from 5 to 50% of the total thickness of the sound absorbing material by filling the lower part of the tool with the mentioned composition, followed by holding the layer of the polyurethane composition for 20 to 60 minutes in the temperature range from 20 to 80°C, applying a fibre material with the thickness from 30 to 90% of the total thickness of the sound absorbing material to the mentioned layer, filling the tool with the polyurethane composition to form the front and side portions of the sound absorbing material, in such a quantity so as to provide the thickness of the front portion of the sound absorbing material from 5 to 50% of the total thickness of the sound absorbing material, as well as the thickness of each side portion of the sound absorbing material from 5 to 20% of the total thickness of the sound absorbing material, followed by exposure of the total volume of the composition at a temperature from 20 to 80°C for 20 to 120 minutes. The sound absorbing material obtained by this method is also proposed.EFFECT: simplifying the technological process of manufacturing sound-absorbing material, increasing the sound absorption coefficient, reducing moisture absorption, preserving the specified form of material during operation.4 cl, 3 dwg, 2 tbl, 3 ex
Process of moulding poly(met)acrylimide foam plastics and composite parts moulded thereof // 2637905
FIELD: construction.SUBSTANCE: advantage of the method is the possibility of a free choice of both the foam plastic material and the cover layer. In particular, the coating layers, the processing temperature of which differs significantly from the processing temperature of the core material, can also be processed by said method. In addition, a method is described, in the second implementation version of which the internal structures of the foam plastics can be partially compacted. The third method implementation version allows, by means of welding at least two foam blanks, to produce a hollow body with especially high-quality joints. The method can be carried out both in the presence and in the absence of the cover layers. In addition, the process described is particularly suitable for the processing of foam plastic materials by means of vacuum moulding.EFFECT: invention provides a method by which fast and easy moulding of rigid plastic foams can be carried out without damaging their structure, or they can be processed into composite materials together with coating layers, in particular thermoplastic synthetic materials.10 cl, 4 dwg
ethod for producing super-ductile clad material based on aluminium // 2637842
FIELD: metallurgy.SUBSTANCE: chemical treatment is carried out in succession with 40% NaOH solution in water, 5% HNO3 solution in water and tetrachloromethane of contact surfaces of high-strength plate 13-13.5 mm thick consisting of an alloy on the basis of aluminium containing, wt %: 3.5-4.5 zinc, 3.5-4.5 magnesium, 0.6-1.0 copper, 2.0-3.0 nickel, 0.25-0.3 zirconium, and cladding sheets with thickness of 1-1.1 mm of aluminium alloy. Cladding sheets are placed on surfaces of the high-strength plate and the high-strength plate is welded with the cladding sheets by hot rolling at temperature of 400-460°C with the cobbing of at least 50% for the first pass and total cobbing of 70-80% followed by cold rolling for 70-80% to obtain clad material with thickness of 1 mm.EFFECT: production of corrosion resistant parts with elongation of more than 300 percent at high temperature deformation by superplastic forming method, the obtained parts have a long service life which allows to extend the field of their application.4 ex
ethod of connecting ceramic product with metallic frame // 2637692
FIELD: construction.SUBSTANCE: method of connecting a ceramic product with a metal frame includes determining the gap size between the surfaces to be glued, manufacturing and installing gaskets of a hardened adhesive, connecting the surfaces and holding under pressure up to the complete drying of the adhesive. The gaskets are installed on one of the surfaces to be glued, on which a layer of adhesive is pre-applied. The gasket thickness shall be not less than the minimum value and not more than the arithmetic mean value of the gap. The method according to the invention is extremely simple, and its use allows to reduce the rejects while assembling ceramic products such as aircraft fairings with a metal frame.EFFECT: simplifying the operation of assembling a ceramic product with a metal frame.1 cl

achine and method of manufacturing construction panel // 2637677
FIELD: construction.SUBSTANCE: machine for finishing construction panels comprises a conveyor line designed to receive incoming housing elements of construction panels and to transport the housing elements in the working direction (F) along the group of treatment stations (A, B, C, D) in the machine. Moreover, construction products are essentially made in the form of rectangular parallelepipeds having: a base, main, side and an opposite additional main side, each of which has a relatively large contoured area; and four edge sides having a relatively small contoured area. Wherein the first treatment station (A) from said treatmentstations comprises treatment means acting in the width direction, designed for introducing, by means of gluing, a first edge strip along the first edge side, from the four edge sides, so that the first edge strip is located parallel to the base, main, side. The second treatment station (B) from said treatment stations, comprises treatment means acting in the vertical direction, designed for introducing, by means of gluing, a basic surface layer covering the entire base, main, side and the base side of the first edge strip. Thereinafter, vertical pressure is applied to the housing element and the first edge strip in the direction transverse to the working direction (F), when the housing element and the first edge strip are passed through the second treatment station, so that the basic side of the first edge strip is aligned with base, main, side of the housing element when they are passed through the second treatment station (B).EFFECT: improving the panel finishing efficiency.19 cl, 6 dwg

Product with low-emission coating containing absorbing layers for low reflection on film side and low passage of visible spectrum // 2637390
FIELD: chemistry.SUBSTANCE: product with a coating applied on a glass substrate refers to low-emission (low-E) glasses with coatings. This coating comprises reflecting IR layers and absorbing layers. The absorbing layers are metallic or substantially metallic (e.g., NiCr or NiCrNx) and are arranged to loosen or prevent the oxidation of the absorbing layers during possible heat treatment. The coating also comprises dielectric layers containing silicon nitride.EFFECT: providing glass with a coating which has low emissivity and a combination of low light transmittance and low reflection coefficient on the film side, preventing oxidation of the absorbing layers during possible heat treatment.22 cl, 2 dwg, 5 tbl
Adjustment insert manufacturing method // 2637340
FIELD: metallurgy.SUBSTANCE: invention relates to a method for manufacturing adjusting insert comprising the following stages: preparing liquid solution of uncured resin in excess volume of solvent; allying film layer of the resin liquid solution to at least one side of each metal strip; stacking metal strips in such a way that two adjacent metal strips are separated by resin film. The method includes a stage for resin curing in which stacked metal strips are heat treated for specified period of time at temperatures higher than the temperature of thermal degradation or resin burning.EFFECT: use of cutting or piercing tool for peeling is not needed; instantaneous execution of the peeling operation; risk of unintensional peeling of several plates is eliminated; piercing-cutting tool injury hazard elimination; significant reduction in production costs during mechanical assembly; significant acceleration of production flows; possibility for repeated use of peeled off metal sheets due to elimination of their deformation which ensures cost-effectiveness.13 cl
Composition of vinylidenechloride copolymer for barrier film // 2637321
FIELD: chemistry.SUBSTANCE: composition comprises: (a) a vinylidenechloride/methyl acrylate interpolymer having more than 6 wt % of methyl acrylate monomer units in the interpolymer; (b) more than 6 wt % of epoxy plasticiser; and (c) from 0.5 to 4 wt % of the acrylate polymer. The composition has a crystallization time of more than 25 minutes during crystallization at 35°C, measured by a differential scanning calorimeter, and the composition has an oxygen transmission rate of 1.5 to 15.0 cm3mil/100 inch2ati.day, measured in accordance with ASTM D 3985 at 50% of the relative humidity and 23°C.EFFECT: films made from the present composition show improved processability and barrier properties for food packaging.10 cl, 3 tbl, 9 ex

Structure based on superplastic forming/diffusion binding for reducing noise from air flow // 2637276
FIELD: aviation.SUBSTANCE: inner wall of nacelle includes a monolithic layered structure based on superplastic forming and diffusion binding, monolithic layered structure comprises a core disposed between the first and second facing sheets with formation of a layered structure. Moreover, the core includes a plurality of cells, and the first facing sheet has a plurality of wholes to ensure the arrival of noise and air into the cells.EFFECT: higher structural strength and high resistance to damage, heat resistance, noise reduction without increasing the weight of the structure are achieved.15 cl, 14 dwg

ethod of producing polymeric composite materials // 2637227
FIELD: chemistry.SUBSTANCE: composite material is produced by forming a fibrous roving base in the amount of 90-100 wp and its impregnation with a polymeric binder on the basis of epoxy-dian resin in the amount of 18-20 wp, while on the surface of the fibres of the roving base before it is impregnated a layer of organosilicon sizing with carbon nanotubes is preliminarily applied by treating the fibres with 1-2% solution of the organosilicon sinter in ethanol with carbon nanotubes in the amount of 0.001-0.005 wp of the carbon nanotubes and 0.1-0.2 wp of organosilicon coupling agent. The fibres of the roving base are treated with a solution by ultrasonic treatment of the solution. The method provides improved performance properties of composite materials.EFFECT: produced composite material allows to produce high-strength composite products, in particular, in the manufacture of reinforcement, rods, and profiles with a high modulus of elasticity and tensile strength.2 cl, 1 dwg, 2 tbl
Panel for floor, wall or ceiling and method of its manufacture // 2637010
FIELD: construction.SUBSTANCE: panel contains a lining wood board, made of wood material and a veneer located on its upper side. The lining wood board and the veneer, as well as the resin layer embedded between them are pressed together with each other, when hot. When compressing the pores, cracks and/or gaps in the veneer are filled with resin. In particular, the pressing process is carried out in such a way, that the veneer is impregnated with the resin, and after pressing, the resin becomes visible on the veneer surface. According to the invention, thus, in one operation, the veneer is glued together with the lining wood board and the veneer is filled-up.EFFECT: invention provides a creation of high-quality panel, having an improved structure of the natural surface.20 cl
 
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