FIELD: catalysts in organic synthesis. SUBSTANCE: catalyst suitable for reaction of phenol with carbonyl compound to produce bisphenols is provided, which is especially suitable for phenol-acetone condensation reaction to produce bisphenol A. Catalyst is distinguished by having 10-30 sulfonic groups bound to C1-C7-alkylmercaptoamine through ionic ammonium sulfonate linkage and ha...

FIELD: power engineering; water-supply systems for agriculture, oil extraction from low-discharge wells. SUBSTANCE: hollow shaft of main windwheel accommodates shaft of additional windwheel coupled through reduction unit with crankshaft radius changer. Speed of additional windwheel is as many times lower than that of main windwheel as its optimal speed according to criterion of maximum power devel...

FIELD: geophysical examination of boreholes. SUBSTANCE: invention can be used in the capacity of telemetering system in boreholes of any profile including those in north areas at latitudes up to 80 degrees without usage of magnetic field of the Earth. Down-hole logging instrument has enclosure filled with working liquid that houses float carrying one or two sealed two-component gyroscopic transmit...

FIELD: information carriers, in particular, person identification documents. SUBSTANCE: device has unit for production of information sheet for document, unit for reception of personal data, operator's board, display, local database unit, printer, image production device, device for heat processing under pressure, main database, unit for reception of identification data, control unit, record keepi...

FIELD: manufacturing of lead storage batteries. SUBSTANCE: method involves production of blank article, its shaping, processing by fluoride surface-active agent which contains perfluorinealkylsulfacids (perfluorineoxaalkylsulfacids) or perfluorinealkylcarbonacids (perfluorineoxaalkylcarbonacids) which general composition is RFQZ,, where CF3...-C12F25, are polyf...

FIELD: building materials industry, more particularly liquid glass based compositions for manufacture of heat- insulating materials. SUBSTANCE: raw mix comprises, wt.%: liquid glass, 82-89; microsilicon filler which is crystalline silicon production waste; 8.93-16.4; and sodium bicarbonate, 1.6-1.77. Method comprises preparing liquid glass mix, filler, sodium salt of inorganic acid, granulating th...

FIELD: polymer production. SUBSTANCE: vinylidene fluoride is polymerized optionally in combination with other fluorine-containing olefins in aqueous medium in presence of radical initiator and 1,1,1-trifluoro-2,2-dichloroethane as chain-propagation agent. EFFECT: eliminated yellowing of polymer at elevated temperatures. 4 cl, 1 tbl, 3 ex

A multi-chip module (MCM) assembly has three stacked integrated circuit (IC) layers. The first IC layer is electrically flip-chip connected to a substrate. The back of the second IC layer may be glued to the back of the first IC layer, and the second and third IC layers are electrically flip-chip connected to each other. In one embodiment, the third IC layer is electrically connected to the substr...

FIELD: organic chemistry. SUBSTANCE: invention proposes phosphonohydroxymethyl esters of taxane derivatives of the general formula (A) where T means taxane moiety carrying substituted 3-amino-2-hydroxypropanoylhydroxy-group on C13-carbon atom; m = 0 or 1; n = 1, 2, or its pharmaceutically acceptable salts. Thio-derivatives of baccatin of the formula (D) where txn is taxane moiety, or its ...

FIELD: preparation of gas followed by transfer of gas under pressure to User's reservoirs and to mobile distributing units. SUBSTANCE: method includes gas preparation stages and transfer of gas under pressure to User's reservoirs. At the preparation stage, low-pressure gas is fed to compressing reservoir where compression is effected through pumping liquid into this reservoir, thus delivering gas ...

FIELD: medicine, ophthalmology, biochemistry, pharmacy. SUBSTANCE: highly purified hyaluronic acid fraction or its salt (an average molecular mass is 750000-123000 Da) has protein (0.2% as measured for albumin, not above), exhibits an ultraviolet absorption at 257 nm and 280 nm 1.0 A.U., not above, measured in 1% (weight/vol.) an aqueous solution and other properties (see point 1 of the invention ...

FIELD: paper industry; paper processing and winding into rolls. SUBSTANCE: device for automatic replacement of first roll with wound-on first band by second roll onto which second band is wound has at least one pair of roll holding spindles able to move in direction parallel to rolls, movable member carrying holder for rear edge of first band, and device to press rear edge of first band to front e...

FIELD: metallurgy; reducing smelting with use of gas discharged from smelting unit as carrier gas for iron ore without use of separately prepared carrier gas. SUBSTANCE: method includes stages of preliminary reduction of iron ore in furnaces of preliminary reduction, smelting and reduction of iron ore in smelting gasifier, discharge of finely divided iron ore cooled below and purified through the ...

FIELD: nuclear power engineering. SUBSTANCE: method for refueling water-moderated reactor, such as that of type VVER-1000, incorporating fuel assemblies of two or more types which are distinguished by softness of neutron spectrum when they are located in core involves extraction of spent fuel assemblies, displacement of those remaining in core, and addition of new fuel assemblies; proportion of so...

FIELD: alkali storage batteries with cadmium anode. SUBSTANCE: weight percentage of constituents in active material is as follows: 6-7% of nickel hydroxide, 1.8-2.0% of stabilizing surface-active additive, sodium saline of cellulose- glycol acid with substitution rate of 65-90 and polymerization rate of 400-600, the rest is cadmium oxide. EFFECT: increased output voltage of storage battery, when i...

FIELD: manufacturing of heavy-duty chemical current sources. SUBSTANCE: device has unit of opposite polarity electrodes which are split by separator, and electrolyte, which contains the following weight percentage of constituents: 10-30% of caustic potassium, 5- 15% of caustic lithium, the rest is water. When assembled electrode unit is mounted into housing, method involves filling it with solutio...

A turbo-charged internal combustion engine with a twin-entry exhaust turbine and with a valve arrangement (20) disposed in the turbine housing (11). By means of the valve arrangement (20) the exhaust channels (9, 10) in the turbine housing can be short-circuited. The valve arrangement also functions as a waste-gate valve by virtue of the fact that its valve element (26), in one position, permits e...

A turbo-charged internal combustion engine with a twin-entry exhaust turbine and with a valve arrangement (20) disposed in the turbine housing (11). By means of the valve arrangement (20) the exhaust channels (9, 10) in the turbine housing can be short-circuited. The valve arrangement also functions as a waste-gate valve by virtue of the fact that its valve element (26), in one position, permits e...

A method and device for treating plastic film, according to which method plastic film web used as packaging material is wrapped around the object to be packaged. According to the method, the plastic film layers are seamed together and the plastic film web is cut off by heating the seaming point and cutting-off point by means of a heat radiator. Heat-absorbent counterpieces are preferably placed at...

FIELD: manufacture of laminated items. SUBSTANCE: device for attachment of drain channel on plane part of item such as a milk or juice carton may be arranged in ordinary conditions for manufacture of cartons and their filling. The method consists in heating of the channel bar, application of binder onto the channel flange. The channel is located in a preset position relative to the applicator of c...