Marking additive

FIELD: physics.

SUBSTANCE: marking additive in the form of spherical particles contains a magnetic component and a marking component with the following ratio, wt %: magnetic component 2-98; marking component 2-98. The magnetic component comprises, at least, one component selected from the group consisting of ferrimagnetic iron oxides and/or ferrites with a spinel or garnet structure or particles of metallic Ni. The marking component contains a mixture of salts in the form of nitrates, acetates, chlorides, formates, or oxides, including solid solutions based thereon. The marking component comprises, at least, two elements selected from the group consisting of alkaline earth elements, lanthanides, transition metals, and post-transition metals.

EFFECT: increasing the accuracy and reducing the analysis duration of objects containing a marking additive.

12 cl, 3 tbl, 4 ex



Same patents:

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to versions of RF tag fixing to oil and gas equipment. One of the embodiment versions includes performing a closed hole in the equipment body, making thread surface in the above hole, applying glue to thread surface of RF tag and surface of the tag corresponding to the closed hole wall, setting RF tag to the hole, sending radio signal to the above RF tag and receiving signal containing identification data.

EFFECT: improved reliability of RF tag fixation, reduced dimensions of RF tag, reduced dimensions of the hole, improved dirt protection of the article, reduced negative impact of RF tag installation to strength of the article.

25 cl, 13 dwg

FIELD: physics, signalling.

SUBSTANCE: invention relates to identification of material resources and can be used to label electroconductive articles. The method of making and installing non-reproducible identification label on an electroconductive article includes applying an identification number, an information grid and a non-reproducible matrix, as well as combined input of the identification number and the non-reproducible matrix into a database. The non-reproducible matrix is formed in advance separately from the article on a nanofilm by random point-by-point evaporation of areas of the nanofilm to obtain perforations of different size and shape or obtaining bulging areas of the surface of different size and shape on the nanofilm during electric discharge treatment thereof, after which the nanofilm is placed on the article by pressure sintering.

EFFECT: invention enables to obtain a non-reproducible identification label on an article, which enables to apply information and prevent forgery.

3 cl, 6 dwg, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to polymer compositions for direct part marking (DPM). Invention is aimed at creation of planarising polymer composition, solidified by drying, photo- or thermo- polymerisation, and formation of DPM by layer-by-layer application on the surface to be marked of planarising and fluorescent polymer compositions. Planarising composition includes polymerisation or polycondensation polymer from the group of urethane, alkide, acryl film-generating, at least two solvents from the series: acetone, toluene, ethylacetate, cellosolve, diethyl ether, butylacetate additive-filler, siccative and additive. Direct part marking includes application of said planarising polymer composition on the surface to be marked with formation on the surface to be marked of coating layer, gluing mechanically strong film with limited adhesion on coating layer, formation of holes in glued film and hollows in the surface to be marked by dot-peen method, filling them with fluorescent (F) composition, absorbing light radiation at wavelengths of UV visible and nearest UR ranges and irradiating in range of wavelengths 600-700 nm, and removal of said mechanically strong film.

EFFECT: reduction of geometrical inhomogeneities of the surface to be marked in range of dimensions, close to geometrical dimensions of information elements of marking, and simplification of technology of manufacturing and further decoding of 2D FDPM.

5 cl, 6 dwg, 6 ex

FIELD: physics.

SUBSTANCE: method includes applying noise-proof symbolic labels consisting of information elements formed on the surface of the labelled components in the form of conical depressions during needle-impact labelling, wherein the conical depressions are formed by mechanical action of a sharp needle on the surface of the components through an auxiliary polymer film while simultaneously depositing on the formed walls of the conical depression craters corrosion-resistant powdered yttrium oxysulphide phosphor activated with ytterbium and erbium, and a solution of a polymer resin in ethyl acetate, removing the auxiliary film from the surface of the component with the remaining amount of phosphor and the resin solution after transfer of a portion thereof by the sharp needle onto the walls of the conical depression craters while pricking the film and subsequent action on the labelled surface. The auxiliary film is placed on the labelled surface using a two-component resin solution and a corrosion-resistant powdered phosphor to the processed surface of the component, and the apparatus for reading and decoding the symbolic labels further includes light-emitting diodes with wavelength of 980 nm and a light filter.

EFFECT: high reliability of protection.

3 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to marking of goods. In compliance with proposed method, primary and individual barcodes are applied with non-reproducing pattern made there between. Said pattern is created by preliminary mixing of the elements of contrast colours with their subsequent sintering. Said elements are made of nanoparticles sized to 5-100 nm in conical ledge with its narrow part facing the barcode surface. Now, at least two reference points are applied thereto to create a virtual info reticle.

EFFECT: better protection against counterfeit.

3 dwg

FIELD: physics.

SUBSTANCE: invention is aimed at making a symbolic label for direct application, for example a two-dimensional label, in which information elements, for example cavities of a needle-impact label or laser-treated regions during laser engraving, using techniques described in the invention, are filled with fluorescent dyes which absorb radiation at wavelengths, for example, either below the shortwave transmission edge of a reader filter, for example, in the 250-600 nm range, and radiating in the wavelength range of the bandwidth of a receiving reader channel, for example 600-700 nm, or absorbing radiation at wavelengths longer than the long-wave transmission edge of a reader filter, for example in the 700 nm-10 mcm range, and radiating in the wavelength range of the bandwidth of an input reader filter, for example 600-700 nm.

EFFECT: providing high image contrast, image quality which does not depend on reflecting and microrelief properties of a surface, makes reading easier, and also enabling reading of labels with scanners designed to read ordinary labels.

19 cl, 14 dwg

FIELD: information technology.

SUBSTANCE: method of making a nano-barcode is realised by applying a basic digital barcode and an individual digital barcode while forming an irreproducible picture in the space between them, wherein the irreproducible picture 5 is formed on nano-paper made by pre-addition of a nanopowder additive to a paper mass, followed by making sheets of nano-paper and simultaneously fixing the arrangement of nanoparticles 6 relative each other in both the space of the irreproducible picture and between the stripes of the basic barcode 2 and the individual 4 barcode.

EFFECT: high reliability of identifying barcodes, easier and safer method of making barcodes.

4 cl, 4 dwg

FIELD: information technology.

SUBSTANCE: mathematical number of the digital code of the object in decimal notation is converted by rearranging the position of digits of the mathematical number; that rearrangement and the rearranged mathematical number are stored; the rearranged mathematical number is then converted from decimal notation to quaternary notation, and the converted mathematical number in quaternary notation is encoded for its four digits by images of distinct labels which are alternately placed on the surface of a sheet; through successive images of distinct labels, the encoded converted mathematical number in quaternary notation is repeated one after the other at least twice, and said images of distinct labels are split by images of initial labels which denote initiation of the mathematical number in quaternary notation.

EFFECT: high reliability of protecting articles.

9 cl, 8 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to appliances intended for marking metal articles for verifying legality of their production. Coded message is produced on metal article surface by laser local heating source. Note here that prints consisting of nanostructures of oxides of metal elements to be red by aforesaid reader. Coding is performed in binary system based on availability (1) or absence (0) of aforesaid print. Information is coded by compiling private tables on the basis of IBM coding. Note here that generation of coded message is controlled by computer proceeding from pre-calculated parameters of effects. Said parameters are calculated by adduced laws.

EFFECT: larger volume of stored data during entire life under extreme operating conditions.

5 cl, 2 tbl

FIELD: information technology.

SUBSTANCE: method for interference-free writing and reading of code information, involving making micro-irregularities on the surface of an object, then a code structure consisting of marking labels, projecting probing radiation onto the code structure, and recording an image, wherein diffusely reflecting micro-irregularities are randomly and uniformly deposited on the surface of the object, the micro-irregularities on the surface of the object are fused with a laser beam to form a light-absorbing layer, marking labels are made from the fused micro-irregularities, probing radiation is projected onto the code structure at an angle of incidence which provides maximum contrast between the background and the label in the image recorded at the given angle.

EFFECT: stronger surface of the recorded code.

6 cl, 1 dwg

FIELD: measurement equipment.

SUBSTANCE: invention relates to methods of indicator detection of trace amounts of explosives and components of explosives on the basis of three groups of compound classes: nitroaromatic compounds; nitramines and nitroesters; ion nitrates. The method of express detection of explosives on the basis of a set of chemical indicators for three groups of classes of nitrogen-containing compounds includes using a reactive indicator material with reagents, previously applied in dosed quantity onto a carrier, besides, the reactive indicator material is a carrier with immobilised azocomponent of Griess reagent, which is in solid chemically modified protected form with covalently bound amides.

EFFECT: increased sensitivity and reliability, as well as faster detection.

4 cl, 4 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to field of analytical chemistry, namely to express-detection of explosive substances (ES) based on organic peroxides. Method is based on fixation of hydroxen peroxide, released in the process of explosive substance decomposition by indicator method. For this purpose change of indicator colour is fixed within 1 minute after contact with solid-phase material, possessing function of surface acidity and providing decomposition of ES to hydrogen oxide. Application of claimed method simplifies analysis of cyclic peroxides due to reduction of the number of analysis stages, as well as to elimination of liquid reagents, including concentrated acids and organic solvents.

EFFECT: invention provides carrying out express-analysis of trace quantities of peroxide ES outside laboratory in wide range of climatic conditions.

6 cl, 2 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: indicator testing means for determining content of N-methylaniline in hydrocarbon fuels is neutral aluminium oxide with potassium ferricyanide immobilised on the surface thereof, moulded in form of pellets. The method of determining content of N-methylaniline in hydrocarbon fuels using said indicator testing means is carried out based on colour change thereof after coming into contact with a sample of the analysed sample.

EFFECT: reliability of determining lower concentrations of N-methylaniline in hydrocarbon fuels.

2 cl, 1 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention can be applied for the estimation of a washing ability of petrol and diesel fuel and influence of their washing abilities on technical-economic and ecological (TE) characteristics of an engine (E). The method consists in the preliminarily "pollution" of E with an etalon pollution mixture (EPM) of fuel and oil, which ensures its working in a fixed mode. Upon use of 20-40 l EPM the E is stopped, cooled, dissembled and pollutions (P) are registered. Then E works on the test fuel at standard modes (SM). Its TE characteristics are measured. Then P is registered again. Parameters of SM are given.

EFFECT: increased degree of reliability and objectivity of determining the washing ability of petrol and diesel fuel.

9 cl, 4 tbl

FIELD: oil-and-gas industry.

SUBSTANCE: hydrocarbons concentration is measured in vapour-air mix flowing from filler neck as well as time interval from fill in start to initial occurrence of hydrocarbons in said mix, said concentration being taken as the minimum magnitude. Time interval when hydrocarbons concentration reaches maximum magnitude and moment when maximum level in the tank is reached are measured. Bulk of losses of oil or oil products is determined by the formula: M"пп"=V"ц"[(t"ц"tCmax)Cmaxt"ц"+(tCmaxtCmin)(Cmax+Cmin)2tCmax], where M"пп" is bulk of losses caused by evaporation in vapour-air mix emissions, kg; V"ц" is tank volume, m3; t"ц" is time interval from fill in start to maximum fill in level, min; Cmax is maximum concentration of hydrocarbons in said mix, kg/m3; Cmin is minimum concentration of hydrocarbons in said mix, kg/m3; tCmax is time interval from fill in start to occurrence of vapours with concentration Cmax, min; tCmin is time interval from fill in start to occurrence of vapour with concentration Cmin, min.

EFFECT: lower labour input, higher accuracy of loss determination.

1 tbl

FIELD: chemistry.

SUBSTANCE: dispersion-indicator composition is prepared, for which purpose hydrochloric acid and water-alcohol solution of bromophenol blue are introduced into distilled water, obtained composition is combined with petrol sample, into which methyl-tert-butyl ether is preliminarily added, mixture is mixed and settled at room temperature, volume of foamy layer of blue-light blue colour is measured at the boundary of “petrol-water" separation, and if its value is not less than 1 cm3 conclusion about detergent additive in petrol is made.

EFFECT: acceleration of identification with high degree of its reliability.

1 ex, 5 tbl

FIELD: chemistry.

SUBSTANCE: method of evaluating corrosiveness of jet fuel comprises determining the decrease in weight of copper-containing material placed in the fuel before and after testing at high temperature. The copper-containing material used is copper foil which is placed in the fuel and held in hermetically sealed cells in the form of metal vessels at temperature of 150±2°C for 4 hours while holding in two steps of 2 hours each and replacing the fuel after the first step. The greater the decrease in the weight of the copper foil before and after test, the more corrosive the jet fuel.

EFFECT: high reliability and faster evaluation.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to chemical methods of expertise of explosive substances and forensic identifying preparations. A method of marking an explosive substance consists in the introduction of a marking composition, containing identifiers, the quantity of which equals the quantity of technical parameters to be marked, into the explosive substance, obtained by mixing of separate components. To mark the explosive substance each separate component, included into the mixture of the explosive substance, is marked. The marking composition for each separate component is composed of at least one polymer material from the group of polyorganosiloxanes with the length of a molecular chain, representing an identifier, different from lengths of molecular chains and values of viscosity of polymer materials in the marking compositions of other separate components, constituting the mixture of the explosive substance. As the marking composition of the explosive substance a set of marking compositions of separate components of the said substance mixture is used.

EFFECT: improvement of marking.

3 cl, 3 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: method includes determination of the density at the fuel temperature 20°C, determination of the averaged boiling temperature Tc, °C, by calculated dependences on temperatures of boiling away of different fuel fractions, setting the density range at 20°C from 700 to 1020 kg/m3, determination of kinematic viscosity at a temperature of 50°C with the fuel density from 860 to 1020 kg/m3 and the temperature of boiling away of final fuel fraction higher than 400°C, equipping a nomogram for CI estimation with an additional scale of viscosity, matched with the Tc scale on the section from 268 to 320°C, setting the Te range from 90°C to 320°C, setting the range of the kinematic viscosity scale from 2.0 to 1000 mm2/s, setting the range of cetane index scale, units, from 0 to 70. The nomogram makes it possible to determine CI of any liquid hydrocarbon fuel (from petrol to the residual one).

EFFECT: extension of assortment of analysed fuels and increased reliability of estimation.

1 dwg, 1 tbl, 4 ex

FIELD: oil and gas industry.

SUBSTANCE: invention is related to the field of analysis of physical properties of liquids. A device contains a container for sampling with a scale with a piston and rod placed in it, software and hardware to measure time and temperature, a tube for liquid intake during sampling in order to determine the relative viscosity, a thermistor which can be installed at the tube during determination of microcone penetration, demulsifying ability and index of the liquid heating dynamics, a cone that can be installed instead of the piston on the rod by means of a threaded connection for determination of microcone penetration, a plug or a cover which can be installed into the container nipple instead of the tube for determination of microcone penetration and demulsifying ability, and a support for the container installation.

EFFECT: simplification and acceleration of the analysis as well as increase in its information content and reliability.

5 cl, 4 tbl, 10 dwg

FIELD: physics.

SUBSTANCE: multispectral camera comprises a diaphragm, a dispersing element, a lens, a microlens array, a photodetector and a processor. Radiation enters the multispectral camera through the diaphragm, which has at least one opening, and is directed by the dispersing element in different, wavelength-dependent directions. The lens focuses the radiation from the dispersing element on an image plane. The microlens array receives radiation from the lens and directs the radiation to the photodetector. The processor forms a multispectral image based on values of signals from the photosensitive elements of the photodetector.

EFFECT: forming multispectral images without using scanning systems and removable filters, improved time resolution and simple design of the device.

15 cl, 7 dwg