Russian patents in English sorted by IPC


Method of moulding impact-resistant transparent polymer sheets

Method includes placing a polymer sheet between moulding elements, heating and moulding by applying bending forces on the heated sheet. The moulding elements used are silicate glass with a given surface curvature, placed equidistant from each other. Before heating, bending forces are generated on a polycarbonate sheet using a uniformly distributed mechanical load.

Filter for absorption of solid particles from compression-ignition engine exhaust gases

Invention relates to filter designed to remove solid particles and nitrogen oxides from exhaust gases. Filter comprises porous substrate with inlet and outlet surfaces and substrate pores of the first average size. Note here that said porous substrate is coated by material increasing the surface area. Said material includes molecular sieve promoted by transition metal wherein aforesaid coat represents a porous untreated coat on inlet and/or outlet surface. One of plies has pores of the second average size, smaller than the first one.

Application of bis(2,4,7,8,9-pentamethyldipyrrolylmethen-3-yl)methane dihydrobromide as fluorescent zinc (ii) cation sensor

Invention relates to application of bis(2,4,7,8,9-pentamethyldipyrrolylmethen-3-yl)methane dihydrobromide as fluorescent zinc (ii) cation sensor.

Automatic system for preliminary treatment of fish-processing enterprise wastewaters

Invention includes a settlement chamber, a vessel for acceptance of floating fat mass, an auger enclosed within a perforated housing, and two vessels connected with the latter: one for collection of dehydrated wastes and the other -for collection of liquid. The control unit is connected to the sensors monitoring the level of wastewater and sediment in the settlement chamber and the level of liquid in the liquid collection vessel. In the lower part of the settlement chamber a brush with a drive is installed. The chamber has an opening wall connected to the drive and is equipped with horizontally oriented perforated partitions. The system is additionally equipped with a waste collection vessel, a chamber for coagulant solution preparation, a chamber for mixing water being treated with the coagulant solution and, having an automated doser and a flotator. The coagulant solution preparation chamber, the mixing chamber, the floating fat mass receptacle vessel, the flotator, the waste collection vessel and the dehydrated waste collection vessel are equipped with liquid level sensors. The settlement chamber is equipped with sediment level sensors with pressure sensors installed in the auger and in the settlement chamber. The system pipelines are equipped with water flow rate and pH sensors. All the sensors are connected to the control unit.

Novel heteroarene anthracenedione-based g-quadruplex ligands inhibiting tumour cell growth

Invention relates to linear heterocyclic anthracenedione derivatives containing guanidino(alkylamino) groups in positions 2, 4 and 11 and having the formula: as well as pharmacologically acceptable salts, where X independently denotes a heteroatom selected from O, S or an NH group which forms a five-member heteroarene condensed with an anthracenedione nucleus at bonds 2-3; n independently denotes a number from 2 to 4, which is equal to the number of spacer CH2 groups which link amino groups in peri-positions of heteroarene anthracenedione with nitrogen atoms of guanidine group residues located in side chains; m independently denotes a number from 2 to 4, which is equal to the number of spacer CH2 groups which link the nitrogen atom of a carboxamide group located at position 2 of the heterocyclic nucleus of heteroarene anthracenedione with the nitrogen atom of the guanidine group residue located in the side chain.

Application of electrically conducting coating of sun shade

Invention relates to application of electrically conducting coating on outer surface of spacecraft optoelectronic device. Proposed method consists in that assembled and painted from inside sun blade is fitted on base running in two axes in vacuum chamber. Coating with different current conductivity is deposited by evaporation in vacuum chamber.

Inhibitors of human poly(adp-riboso)polymerase-1 based on uracyl derivatives

Invention relates to novel inhibitors of human poly(ADP-riboso)polymerase-1 based on uracyl derivatives of general formula (I), (II), (III) and (IV). Inhibitors of poly(ADP-riboso)polymerase-enzymes take part in DNA reparation. In general formula and R1=H, Cl, Br, I, methyl, ethyl, propyl or isopropyl; R2, R3, R4, R5=H, methyl, ethyl, propyl or phenyl; R6=(CH2)n, where n=1-4; X=OR2 or NR2R3, R2, R3=H, methyl, ethyl, propyl, phenyl, 3-hydroxypropyl.

Drum-type reactor for thermal processing of fine oil shale

Drum-type reactor for thermal processing of fine oil shale by solid heat carrier is made as a case (1) in the shape of a hollow horizontal drum with end walls at the ends to which inlet and outlet tubes are cut in. In order to mix oil shale with heat carrier at inner lined surface (2) of the case (1) of the drum-type reactor there are pockets (3), which ensure complete mixing of the mix in quantity determined by the formula N = π D/a, where D is diameter of the inner working surface of the drum and a is pocket width. At that geometric scope of one pocket (3) corresponds to volume-flow rate per second of the mix of oil shale with heat carrier while the total geometric scope of all pockets (3) corresponds to volume-flow rate or exceeds volume-flow rate of the mix of oil shale with heat carrier supplied to the reactor per its one turn.

Method of producing aldehydes

Invention relates to a method of producing aldehydes via hydroformylation of terminal or internal olefins in the presence of a catalyst system containing rhodium and a mono- or polyphosphite ligand. An antioxidant is added to the reaction mixture, the antioxidant being phenols or thioureas of general formulae: where R denotes identical or different aliphatic or aromatic univalent radicals or hydrogen, and hydroformylation is carried out in liquid phase in a solvent medium in form of aldehyde, with rhodium concentration of 0.1-2 mmol/l, at temperature of 20-150°C and pressure of 0.2-5 MPa, wherein the amount of the antioxidant is 1-30 mol/mol phosphite ligand.

Method of producing l-proline ethylamide hydrochloride

Method includes suspending L-proline in pyridine, adding at 0-10°C and mixing dichlorodimethylsilane in molar ratio to L-proline of 1.1-1.2:1, subsequent mixing of the reaction mixture at room temperature, adding ethylamine to the reaction mixture while cooling to 0-7°C and mixing the mixture at room temperature, evaporating the reaction mixture in a vacuum, adding to the formed oil-like precipitate aqueous sodium carbonate solution to pH 7.8-8.0 and a mixture of diethyl ether with petroleum ether in ratio of 1:1, separating the aqueous layer, evaporating the residue in a vacuum, converting the formed L-proline ethylamide into a hydrochloride by treating with hydrochloric acid.

Polymer proppant material and method for production thereof

Invention relates to a polymer proppant material which is a metathesis-radially cross-linked mixture of oligocyclopentadienes and methylcarboxy norbornene esters. Described is a method of producing said material, which includes preparing a mixture of oligocyclopentadienes and methylcarboxy norbornene esters by cross-linking dicyclopentadiene with methacrylic esters and polymer stabilisers given in claim 2 of the invention, heating said mixture to temperature of 150-220°C and holding at said temperature for 15-360 min, followed by cooling to 20-50°C. A radical initiator and a catalyst given in claim 2 of the invention are successively added to the obtained mixture of oligocyclopentadienes and methylcarboxy norbornene esters. Further, the obtained polymer matrix is heated to temperature of 50-340°C, held at said temperature for 1-360 minutes and then cooled to room temperature.

Regeneration of purifying layers by means of jet compressor in open contour

Invention relates to method of regeneration of purifying layer, located on vessel, which is applied in processes of olefin polymerisation, as well as to system of regeneration of purifying layer, which is located in vessel when said process is performed. Method applied cycle with open contour. Recirculation of part of medium, discharged from vessel, as composition subjected to recirculation, is realised. The remaining part is removed into atmosphere. Method includes the following stages: a) supply of inert gas, which is under first pressure P1; b) combining inert gas with subjected to recirculation composition, discharged from vessel, with obtaining regenerating composition, which is under second pressure P2; c) supply of regenerating composition into vessel in order to regenerate purifying layer. Subjected to recirculation composition is under third pressure P3 in such a way that P1>P2>P3.

Synthesis of carbamoyl pyridone inhibitors of hiv integrase and intermediate compounds

Invention relates to improved method of obtaining pyridine compounds (AA),(BB) and (CC) of respective formulas:

Apoptosis-inducing preparations for treatment of cancer and immune and autoimmune diseases

Invention relates to compound of formula or to its therapeutically acceptable salt, where A1 represents N or C(A2); A2 represents H; B1 represents H, OR1 or NHR1; D1 represents H; E1 represents H; Y1 represents CN, NO2, F, Cl, Br, I, R17 or SO2R17; R1 represents R4 or R5; Z1 represents R26 or R27; Z2 represents R30; Z1A and Z2A both are absent; L1 represents R37; R26 represents phenylene; R27 represents indolyl; R30 represents piperasinyl; R37 represents R37A; R37A represents C2-C4 alkylene; Z3 represents R38, R39 or R40; R38 represents phenyl; R39 represents benzodioxilyl; R40 represents C4-C7cycloalkenyl, heterocycloalkyl, which represents monocyclic six- or seven-member ring, containing one heteroatom, selected from O, and zero of double bonds, or azaspiro[5.5]undec-8-ene; the remaining values of radicals are given in i.1 of invention formula. Invention also relates to pharmaceutical composition, based on claimed compound.

Adhesive composition

Invention relates to an adhesive composition based on polyethylene or ethylene and vinyl acetate copolymers, used as an adhesive when applying a protective polymer coating on different metal surfaces. The composition contains 1-4 wt % 2,2,4-trimethyl-1,2-dihydroquinoline oligomer, 0.5-2.5 wt % oligomer of epoxy resins with molecular weight from 360 to 3500 and content of epoxy groups from 24 to 2 wt %, 1-4 wt % ternary copolymer of vinyl acetate, vinyl versatate and n-butyl acrylate and the balance - polyethylene or ethylene and vinyl acetate copolymer.

Composition for surface processing, containing compounds of phosphonic acids

Invention relates to compositions for surface purification, including detergent washing compositions, dish-washing compositions, compositions for textile softening, and solid surface cleaners. Invention, in particular, relates to composition, containing considerable quantity of surface-active agents in combination with additional quantity of compounds of phosphonic acids.

Composite construction material

Composite construction material comprising a cement binder, a filler, lignocellulose materials and an additive - a mixture of low molecular polyethylene and urea at the ratio of 1:1, additionally contains a non-ionogenic surfactant polyvinyl pyrrolidone at the following ratio of components, wt %: cement binder 20-30, filler 44-56, non-ionogenic surfactant polyvinyl pyrrolidone 0.5-2, lignocellulose materials 5-12, mixture of low molecular polyethylene and urea at the ratio of 1:1 0.5-3.5, water - up to 100.

Method of well abandonment

Well abandonment method includes running in of tubes to the well, placing of cement plug from the bottomhole up to the well head. A part of the casing string is cut in the formation interval where crossflow between layers is found through borehole annulus and 10 m above it. Then a macaroni string blinded from downwards is run in to the well from the well head up to the bottomhole. Then a fibre-optical cable is run in to the macaroni string. Thereafter the string is run in to the bottomhole and a cement plug is placed by pressurised plugging from the bottomhole up to the wellhead using high temperature cement. The string is removed from the well; the bottomhole is poured by high temperature cement up to the wellhead. Upon abandonment temperature distribution is recorded for the well bore on quarter basis.

Method of preparing rock material for recess using laser exposure and automated system for its implementation

Method is performed using the automated system which comprises a laser device with the possibility of longitudinal displacement and is provided with a damper platform placed on the surface miner frame and pivotally connected to the frame of the laser device. The laser device is placed on the frame guides with the ability to move longitudinally along the guides on the rolling bearings using the drive connected with the automatic control unit, and is made in the form of a cassette with fibre-optic emitters placed along the moving direction of the surface miner.

Method to erect transformable building of cultural and leisure institution

Method of erection includes multiple transformable volume block modules, each made in the form of a base installed by means of weight-lifting mechanisms on a rectangular frame connected as capable of detachment with angular vertical stands connected to a wall enclosure and a ceiling slab. Transformable volume block modules are installed in at least two and more rows comprising at least two transformable volume block modules, one of which is central, and the other one - peripheral. Initially they erect a peripheral row of transformable volume block modules of one dimension type. First angular vertical stands are installed onto a previously prepared strip footing with intermediate linear supports of the base on rectangular frames of two transformable volume block modules and fixed at the corners of each rectangular frame of the base, and the stands are rigidly connected to each other on coupled sides of rectangular frames of the base. A ceiling slab is installed onto angular stands of the first and second block module. Slots in areas of joints of bases and ceiling slabs are sealed, and a wall enclosure is installed at the extreme end sides of the rectangular frames of bases. Simultaneously they install a wall enclosure at extreme sides of the first and last transformable volume block modules installed in this peripheral row. Afterwards they install a central row of transformable volume block modules of one dimension type, but with higher angular vertical stands and longer base of each transformable volume block module, compared to the peripheral row with identical width of end sides of rectangular frames of bases and ceiling slabs of the installed peripheral row of transformable volume block modules, and the central row serves as an auditorium and a stage. Slots in areas of joints of angular vertical stands in all installed rows are sealed, internal surfaces of angular vertical stands are heat-insulated, and coupled angular stands are covered with a figured profile. Trussing is installed on the outer side of the ceiling slabs, and the roof is arranged on top.

Complex additive

Invention relates to field of construction materials, in particular to compositions of additives, used in production of articles from slow-moving and rigid concrete mixtures with application of technologies of classical vibrational moulding, extrusion moulding and vibropressing. Complex additive includes additives of plasticising and air-entraining action. As additive with plasticising action used are lignosulphonates, with additional introduction into it of accelerator of hardening and regulator of thixotropic properties. Complex additive contains said components with the following ratio, (wt %): lignosulphonate - 30-70; additive with air-entraining action - 2-7; accelerator of hardening - 15-60; regulator of thixotropic properties - 5-15. as additive with air-entraining action, used are alkylsulphates, alkylsulphonates, ethoxylated fatty alcohols, salts of sulphoethoxylated fatty alcohols or mixture of any said compounds. as accelerator of hardening, used are sodium rhodanide, sodium thioculphate, sodium sulphate, sodium or calcium formiate, alkanolamines or mixture of two or more said compounds.

Winter vehicle shed wvs5

Winter vehicle shed contains soft heat-insulated cover folded as harmonica bellows and attached to rigid heat-insulated roof hanging over vehicle in cantilever fashion, herewith, the shed at its lateral sides has horizontal guides into grooves of which rollers run, which rollers are installed on upper beams of pillars so that the roof could be drawn out on rollers in parallel to ground surface using separate hand-operated mechanism. In the end positions, the roof is fixed using stopper, pillars are attached to ground using screw-in anchors.

Pumping well cut-off system (versions)

Cut-off system includes equipment of the well with at least one packer with or without return valve downstream connected to the cut-off landing nipple directly or through one or several tubes, and running in and out of an electric submersible pump unit at the pipe string. At that the cut-off valve consist of a lock, a case with input and output passing channels, sealing collars, a controlled element and a locking group. According to the invention the system is equipped with a hollow shank interconnected hydraulically from bellow to the cut-off controllable element and to the cavity of the pipe string over the electric submersible pump unit from the above. For this purpose the pipe string and hollow shank upstream and downstream the electric submersible pump unit are equipped respectively with axial and off-centre upper and lower couplings with taps interconnected by a hydraulic channel passing close to the electric submersible pump unit. At that the upper coupling has either a through axial channel or a through off-centre channel or a through axial landing channel. When the upper coupling is made with the landing axial channel then a divider for two cavities is run in at the additional pipe string of a less diameter with a side return valve. The lower coupling is connected hydraulically to remote measuring equipment. Besides the hollow shank with or without crossover unit is equipped with a disconnector with a running tool or without it. At that the cut-off valve is either run in to the well or set to the landing nipple before running in of the electric submersible pump unit or run in to the well at the running tool under the hollow shank and placed to the landing nipple. At that the disconnector under the hollow shank is connected to the disconnector or its controlled element or the landing nipple. The cut-off valve with a lock is equipped by a pressure adjuster and its sealing collars are set either lower or upper than the output passing channel. The case and controlled element of the cut-off valve form a working chamber connected through the hollow shank and hydraulic channel to the cavity of the pipe string or additional pipe string over the electric submersible pump unit. The controlled element is made as a piston or plunger or bellows capable of the locking group opening and closing at start-up and shutdown of the electric submersible pump unit or at the target generation or release of excess pressure in the additional pipe string or the pipe string. The closing group is made as a support saddle assembly and a gate or as a cylinder and a plunger gate. The piston or bellows or the gate is spring-loaded under the preset force. The cut-off valve is made with or without control mechanism to fix position of the controlled element rotated at the rod or in a case of a coded bushing with through or blind cam slots designed for the limiter in the case or at the rod respectively.

Biocidal additive for concretes and mortars

Invention relates to construction materials, in particular to biocidal additives, promising for fighting microbiological destruction of water solutions of organic compounds, applied in technology of concretes and mortars. Biocidal additive for concretes and mortars as active component contains bioactive ester based on monosubstituted polyethyleneglycol, and bis-etherificated polyalkylene oxide and inorganic derivative of sulphuric acid with the following ratio of components, wt %: monoetherificated polyalkylene oxide 80-98, bis-etherificated polyalkylene oxide 1-10; inorganic derivative of sulphuric acid 1-10. Invention is developed in dependent items of invention formula.

Complex additive to mortars

Invention relates to field of construction materials, in particular to complex additives, used in production of mortars, in masonry and plaster works. Complex additive to mortars, consisting of lignosulphonate-based plasticiser and air-entraining additive, in accordance with invention, as air-entraining additive, it contains composition of surface-active substances (SAS), which includes low-hydrophilic surface-active substances with value of hydrophilic-lipophilic balance (HLB) 1…3 and highly-hydrophilic surface-active substances with HLB value 30…40 with the following ratio, wt %: lignosulphonates - 80-95; composition of surface-active substances - 5-20. SAS composition includes low-hydrophilic substances with HLB value 1…3 and highly-hydrophilic substances with HLB value 30…40 with the following ratio of components, wt.p.: low-hydrophilic SAS with HLB value 1…3 - 5-20, highly-hydrophilic SAS with HLB value 30…40 - 80-95. Complex additive can additionally include hydrophilic stabiliser from the group of vegetable, artificial or microbiological polysaccharides in amount 1-10% of the total weight of lignosulphonate and composition of surface-active substances.

Method of thermochemical fracturing

Invention relates to mining and can be used for thermochemical fracturing. The method consists in use of energy of the oxidation reaction of gel-forming compound, initiated by the reaction initiator for fracturing, and proceeding in the bottom-hole area of layer remote from the well. At that the catalyst, the fuel and the initiator are used in the form of solutions in water.

Complex additive for cement systems (versions)

Invention relates to field of construction materials, in particular to compositions of complex additive, applied in production of concretes, mortars, concrete and reinforced concrete products. Complex additive for cement systems, containing superplasticiser, and mixture of electrolytes, additionally contains organic viscosity regulator; as viscosity regulator used are non-ionogenic and ionogenic cellulose ethers, modified starches, polysaccharides of vegetable or microbiological origin, binary mixtures of monomer cationic and anionic surface-active substances or mixture of several said components with the following content of said components, wt %: superplasticiser 51-84, mixture of electrolytes 15-45, organic viscosity regulator 1-4. In accordance with another version complex additive for cement systems, contains, wt %: superplasticiser 1-10, mixture of electrolytes 1.5-4.5, organic viscosity regulator 0.05-0.5, water-retaining component 85.45-97.45, as water-retaining component it contains mixture of several finely milled natural minerals from the group: limestone, dolomite, sand and/or mixture of several technogenic finely disperse materials of the group, including fly ash, blast furnace slag, microsilica, metakaolin.

Complex additive for concretes and mortars (versions)

Claimed invention relates to composition of additive to concretes and mortars and can be applied in production of concrete and reinforced concrete products and constructions with concreting in wide range of environment temperature. In accordance with the first version complex additive for concrete and mortars contains polyalcohols and sodium sulphate, with additional introduction into it of sodium thiosulfate and rhodanide. Claimed complex additive contains said components with the following ratio, (wt %): polyalcohols - 30-80; sodium sulphate - 10-20; mixture of sodium thiosulfate and rhodanide - 10-50. Sodium nitrite can be additionally introduced into complex additive. In accordance with the second version complex additive for concretes and mortars contains polyalcohols and sodium formiate. It additionally contains acyclic, mono- or polycyclic amines with length of hydrocarbon radical C1-C3. Complex additive contains said components with the following ratio (wt %): polyalcohols - 30-70; sodium formiate - 15-25; acyclic, mono- or polycyclic amines - 15-45. Sodium nitrite can be additionally introduced into composition of complex additive.

Bottomhole zone treatment method for horizontal well

At the wellhead a flush-joint pipe of coil tubing, which is used as a lower end of the pipe string, is equipped at first with a valve consisting of a saddle and case with openings covered hermetically by the saddle fixed by a shear pin in regard to the case and then with a liquid pulsator with a nozzle at the end. The pipe string is run in till the nozzle of the liquid pulsator rests at the bottomhole of a horizontal well, the pipe string is filled with acid solution and acid solution is injected in pulsed mode under pressure of 18 MPa at most with simultaneous movement of the pipe string from the bottomhole to the wellhead with the rate of 50 m per minute to the length of horizontal well screen. When the design distance is reached movement of the pipe string and injection of acid solution is stopped, the plug is placed to the pipe string at the wellhead, movement of the pipe string is renewed and the plug is flushed by process liquid. At that at the moment when the pulsator reaches the screen end interval close to the wellhead the plus is placed to the valve saddle and in result hydraulic pressure increases in the pipe string and the shear pin gets broken. Moreover the saddle moved downwards and openings in the valve case get open thus interconnecting inner space of the pipe string and tubular annulus of the horizontal well. The plug cuts off the liquid pulsator hermetically. Then the process is withhold during 1 hour, at that in process of this withhold the pipe string is run in until the liquid pulsator rests in the bottomhole of a horizontal well. Then, during three cycles in sequence, 0.5 m3 of process liquid is injected either to the pipe string or tubing-casing annulus in turn. When withhold time is over reaction products are washed out by return circulation in one and a halve volume of the well.

Method for borehole bottom flushing

Method includes flow string running to the borehole bottom with a wing at the end till it gets into sump contamination, pumping of flushing fluid through the string and its withdrawal through borehole tubular annulus. A ripper is made at the lower end wind. Inside the wing there is a partition with openings of smaller diameter made off-centre over the ripper. Opposite the openings of smaller diameter in the partition there is an opening of a bigger diameter and a return valve with a valve cage is installed over the partition, at that the valve passes fluid bottom upwards. The flow string is run in to the well; rotation of the flow string is made simultaneously with injection of flushing liquid through openings of smaller diameter and liquid lifting through tubular annulus. The return valve is closed. Rotation of the flow string with injection of flushing liquid is continued till the tubing hanger is unloaded in place per 10 kN. Then rotation and injection are stopped. Flushing direction is changed and flushing liquid is injected through tubular annulus under pressure that does not exceed the permitted value. Ripped and eroded sludge is lifted through the flow string till weight of the tubing hanger is recovered. Working operations are repeated.

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