Article having protective image, production method thereof, use of compounds therein and authentication method

FIELD: information technology.

SUBSTANCE: article with an image includes a substrate having a masked or concealed protective image on at least part thereof, which reflects less than 50% of radiation at wavelength 800-900 nm. The protective image contains an infrared radiation absorbing compound selected from:

or salt or polymer thereof, where M is a metal selected from iron, cobalt, nickel, aluminium, scandium, chromium, vanadium, titanium, manganese and lanthanide. R1 is selected from hydrogen, phosphonate, sulphonate, nitro, halogen, cyano, thiocyano, thioalkyl, thioaryl, alkyl, alkoxy, aryl, aryloxy, amine, substituted amines and substituted aryl. One of R2 and R3 is oxygen and the other is NO; n is a number corresponding to half the coordination number of metal M; each of L and L' independently denotes a ligand which forms a complex with metal M, and y is a number which corresponds to the coordination number of metal M. The infrared radiation absorbing compound does not form an intensely coloured protective image, and the protective image is pale, colourless or tinted. The invention also discloses a method of making the article with the image, using the compound and a method of authenticating the said article.

EFFECT: obtaining a protective image which can reflect less than half the light at 800-900 nm, and a protective image which is not intensely coloured.

14 cl, 35 ex, 4 tbl

 

The technical FIELD

This invention relates to methods of manufacturing products with images and to the products with images.

PRIOR art

Products with images containing protective image, are well known. Protective images usually contain an image, which is invisible or redetection in ambient conditions and which may be visible or detektivami under the action of a suitable stimulus; or alternatively, a single color image in ambient conditions can turn into a different color under the action of stimulus.

Protective image can be produced by applying a protective printing ink or compounds on a substrate. Examples of known compounds, which when applied to a substrate to provide a protective image, include photochromic compounds, which are usually converted from a colorless to a colored under the action of ultraviolet radiation, and thermochromic compounds, which are usually converted from a colorless to a colored under the action of heat.

Products with images that include security image, useful in many industries, such as, for example, packaging, identification cards and labels. It is useful to offer a package that includes a security image, invisible to the e to the consumer in the surrounding conditions, but which may become visible under the action of the stimulus; for example, if a customs and excise officer wants to check whether the imported goods are genuine goods, or they are fake goods. If the package includes a security image which becomes visible or detektivami under the action of a suitable stimulus, the customs and excise officer will be able to determine that the packaging and, therefore, the goods are not counterfeit. Similarly, it is useful to offer an identification card in which the image is invisible, or have a certain color in ambient conditions, but which may become visible or detektivami or change color under the influence of the stimulus in order to confirm the identity of the user identification card, and to determine that the identification card is genuine and not a fake identification card. There are many known examples of such protective images, for example, in concurrently pending applications of the applicant's PCT/GB 2005/001763 and PCT/GB 2005/001766.

In the manufacture of banknotes, it is desirable to include as many protective features, which may include various protective image using a variety of compounds, capable of changing color under the action of stimulus (including moving ankety to change the angle of view) or become stained from colorless, or Vice-versa.

In many countries, civil servants and public authorities using machines, such as verifiers (identifiers of authenticity of banknotes) third parties, which determine the absorption and/or reflection of light in percent at a wavelength of approximately 800-900 nm (infrared region), in order to determine whether specific protective image containing compounds that absorb infrared radiation at 800-900 nm; and, therefore, help to determine whether the banknote is genuine or fake.

It is desirable to provide a banknote, which contain protective image containing compound capable to demonstrate a 50%or less reflection of light at approximately 800-900 nm. Many banknotes include soot (Carbon Black) as a pigment, which has the property to reflect less than 50% of the light at 800-900 nm. Unfortunately, to ensure proper dense image, with the necessary reflectivity of light at 800-900 nm soot is usually required in a concentration that gives a matte grey-scale image in those places where soot, when applied in commonly used concentrations (for example, 3% wt./wt. from the total mass of the dispersion ink printed on a paper substrate for banknotes). Paddlewheel banknotes recognized by matte gray image that the bill is black, and now typically use soot to avoid identify counterfeit banknotes as a fake when using third party verifiers to check the reflection of light at 800-900 nm.

Therefore, it would be preferable to create a security image on the banknote or any other product with the image, requiring protective image, in which the security image includes one or more compounds having 50% or less reflection of light at 800-900 nm at a given concentration in the image (and preferably about 850 nm), and in which the connection does not create intensely colored image. It would be particularly desirable to provide such a connection for inclusion in the security image, where this connection creates essentially colorless protective image, but that has 30% or less reflection of light at 800-900 nm. Most preferably, it is desirable 10% reflection of light in the region of 800-900.

Therefore, the task of preferred forms of implementation of the present invention is to overcome or reduce at least one problem, known from the prior art, regardless of whether it is disclosed in this job or not.

The INVENTION

In the work Künstliche Organische Farbstoffe und Ihre Zwischenprodukte, Hans Rudolf Schweize (Springer, Verlag 1964, pp. 245-246) described water-soluble dye, known as Naftowy green B (S (Colour Index, color index). Acid green 1), useful in stimulating the evaporation of water from sea water to obtain salt - this works due to the enhanced heat through absorption in the near IR region of the solar radiation.

C.I. Acid green 1 has the structure:

.

Commercially available similar pigment S Acid green 1 is S pigment green 8, which has a structure.

.

The applicant has unexpectedly found that this green pigment that absorbs infrared radiation, can be applied in aqueous media on a suitable substrate at relatively low concentrations with obtaining protective image, which shows less than 50% reflection of light at a wavelength of 800-900 nm, giving only a pale green color on the substrate. In addition, the applicant has unexpectedly found that similar pigments, which include complexes of various metals and their salts, and polymers specified above also demonstrate the reflection of light is less than 50% at a wavelength of 800-900 nm, resulting in a very pale, almost colorless images on substrates such as paper, card and the like.

It should be noted that complexes of iron (Fe2+and nits is Senatorov or o-nitrosophenol are bright green complexes along with lanthanides, while complexes of cobalt are brown. Thus, the color varies depending on the choice of the transition element.

Thus, products with images that include security image containing C.I. pigment green 8 and similar compounds show excellent characteristics for protective images on banknotes for detecting infrared verifiers third parties, at the same time controlled and suitable for application on a substrate of a liquid medium.

Accordingly, in the first aspect of the present invention proposed product with images containing substrate having a protective image applied to at least part of it, which provides less than 50% of the reflection of radiation at a wavelength of from 800 to 900 nm, where the protective image contains absorbing infrared radiation of a compound selected from:

,

or,

or its salt, or a polymer, where

M represents a metal element selected from groups 3-10 (Groups IIIB to VIII) or lanthanide;

- R1selected from hydrogen, phosphonate, sulfonate, nitro, halogeno, cyano, thiocyano, thioalkyl, tiarella, alkyl, alkoxy, aryl, aryloxy, amines, substituted and the ins and substituted aryl;

one of R2and R3represents oxygen and the other of R2and R3represents NO;

n is a number corresponding to half of the coordination number of the metal M;

- each of L and L' represents independently a ligand that forms a complex with the metal M; and

- y represents a number that corresponds to the coordination number of the metal M;

where the specified absorbing infrared connection does not create intensely colored protective image

The product image according to the present invention contains a security image which is not intensely colored additionally, this means that the image itself is not intensely colored: the connection used to create the image, can be really intensely colored when it is in a concentrated form, but the number printed on the substrate, results in a security image which is intensely colored.

Accordingly, the protective image is not brightly colored. Preferably it is a pale, slightly colored or colorless.

Preferably absorbing infrared connection protective image is applied in such concentrations that the resulting image has a low pohlad is the light in the visible range, for example, when 400-700 nm. Preferably the protective image formed from absorbing infrared connection, is a reflection of more than 50% at wavelengths from 400 to 700 nm.

Since the protective image formed from absorbing infrared connection is not intensely colored, it can be difficult to see with the naked eye and/or it may be masked by the additional image in the same place, which is more intensely colored. This additional image may overlap with some part or all of the protective image and may be the same as specified security image, or other.

Therefore, the security image can be considered as disguised or hidden image.

According to the second aspect of the present invention, a method for manufacturing products with image, comprising the following stages:

(a) providing the substrate; and

(b) application connection in the form of images, where the specified compound chosen from:

,

,

or

or its salt, or a polymer on at least a portion of the substrate to form a protective image, which is not intensive painted and that gives less than 50% of the reflection of radiation at a wavelength of from 800 to 900 nm, where

M, R1, R2, R3, n, L, L' and y are as described for the first aspect of the invention.

Preferably, M is selected from iron, cobalt, Nickel, aluminum, scandium, chromium, vanadium, titanium, manganese or lanthanide. Most preferably, M is selected from iron, cobalt and lanthanum

Preferably, M represents a metal having a coordination number of 6 or 8, and n is 3 or 4, and equal to, respectively, 6 or 8.

Preferred salts of the compounds deposited on the substrate in the first and second aspects of the invention include compounds of formula:

,

where M, n and R1, R2and R3are as described for the first and second aspects of the invention, X represents a cation of a metal selected from a metal of group 1 or 2 (alkali metal and alkaline earth metal and aluminum, and the sum of m and t corresponds to the total number of negative charges on the connection.

Particularly preferred salts include salts of the formula:

,

where M, X, n, m and t are as described in this invention above.

Particularly preferred salts include salts having the following formula:

and

.

Each of L and/or L' is preferably independently selected from chlorine, bromine, hydroxyl, water, or pairs of ligands from the group L, and/or the group L' can contain one ligand, forming a ring structure with the metal M, and can be, for example, formed from 1,3-dinitroso-2,4-dihydroxybenzophenone or 1.5-dinitroso-2,6-dihydroxynaphthalene groups connected to the metal M via nitroso and hydroxyl groups.

In a particularly preferred form of implementation, the connection of the protective image printed on the substrate has the formula:

or,

where M, R2and R3are as described in the paper above, L1-L6and L1'-L6'are ligands independently selected from chlorine, bromine, hydroxyl, water, or any number of pairs of L3-L6and/or L3'-L6'can be combined into a single ligand, forming a ring structure with the metal M, and can be, for example, formed from 1,3-dinitroso-2,4-dihydroxybenzene or 1.5-dinitroso-2,6-dihydroxynaphthalene connected to the metal M via nitroso and hydroxyl groups.

The polymers absorb infrared radiation of the joint which are preferably dendritic polymers, in which each M forms a complex with three dinitroso-2,4-dihydroxybenzaldehyde or three dinitroso-2,6-dihydroxynaphthalene groups (preferably 1,3-dinitroso-2,4-dihydroxybenzene, 1.5-dinitroso-2,6-dihydroxynaphthalene or 1,5-dihydroxy-4,8-dinitronaphthalene).

Particularly preferred polymeric forms of absorbing infrared radiation of compounds useful for the invention are:

and where Fe may be replaced by any other metal M, as described for the first or second aspects of the invention.

Accordingly absorbing infrared connection is applied in the form of an image on a substrate in solution or in suspension or dispersion of the absorbing infrared radiation of the compound in a suitable medium.

Preferably, absorbing infrared connection is applied to the substrate in the composition, optionally containing one or more additional pigments and/or one or more dye Composition containing absorbing infrared connection and one or more additional pigments or dyes may contain a solution of one or more additional pigments and/or dyes, in which the dispersed absorbing infrared connection, su is penzija or dispersion of one or more additional pigments and/or dyes and absorbing infrared connection, or any other suitable form.

Preferably, absorbing infrared connection is applied to the substrate in the form of a dispersion or suspension of absorbing infrared connection, with additional pigments and/or dyes or without them, in a liquid medium. The basics of gravure usually use Tung oil, whereas in the basic inks for offset printing and letterpress, usually as a liquid carriers use linseed oil, not containing aromatic compounds mineral oil (boiling range 280-310°C) and/or not containing aromatic compounds mineral oil (boiling range 260-290°C). For example, can also be used toluene, xylene or methyl ethyl ketone.

Accordingly, the composition comprising absorbing infrared connection, is applied to the substrate in a concentration of at least 1 GM-2(preferably at least 1 μm wet thickness of the layer), more preferably at least 2 GM-2(preferably at least 2 μm, the thickness of the wet layer), more preferably at least 4 GM2(preferably at least 4 μm, the thickness of the wet layer), and in particular at least 6 GM2(preferably at least 6 μm wet thickness of the layer). Layers with a thickness of wet layer, var is irudaya from 2 μm to 80 μm, used in the production of banknotes. Preferably, absorbing infrared connection is applied to the substrate in a quantity capable of absorbing more than 50% of infrared radiation, a fallen or leaning on a substrate, more preferably more than 75%. The application of additional pigments and/or dyes which do not absorb and/or reflect infrared radiation at 800-900 nm, helps to mask any color generated absorbing infrared connection when it is applied to the substrate, and thus to mask the presence of absorbing infrared connection from purported poddelyvali.

Accordingly absorbing infrared connection is applied to the substrate in the form of a dispersion in a paint containing a dye or pigment and the dye preferably contains at least one oil as a medium in which the dispersed absorbing infrared connection and/or additional pigments or dyes in the ink. Suitable oils include natural oils such as linseed oil, and synthetic hydrocarbon or mineral oil.

Accordingly absorbing infrared connection is applied to the substrate in the composition at a concentration which results in an image that is not the tsya intensely colored. In some forms of the implementation of absorbing infrared radiation, the compound may be applied in concentrations of less than 4 wt.%, for example, about 1 wt.% or 2 wt.%.

Absorbing infrared connection may be included in the composition of the paint, which has essentially the same color as the composition of the second dye, which does not contain absorbing infrared connection. For preparation of such combination compositions of paints (in the form of a pair of matched colors) absorbing infrared radiation of the compound added to the composition of primary colors, resulting in the composition of a given color. Color the second part of the basic colors and then adjust (for example, by adding known pigments) so that it visually matches the specified color of the paint composition containing absorbing infrared radiation material. Thus, when the two compositions are applied to the substrate, then the received image is visually indistinguishable to the naked eye.

Two compositions of paints can be used to create one image, and the portion of the image printed by the composition of the paints containing absorbing infrared connection, and the rest of printing ink from a respective pair of matched colors. When viewed with the use of the infrared camera can see only part of the image, containing absorbing infrared connection.

Preferred substrates include paper, in particular paper used for banknotes, such as vellum paper, card, metals (including alloys), textile products (including wool, cotton, hemp, jute, canvas and linen as natural textiles, nylon, viscose, polyamide and polyester as synthetic textiles, rubber, ceramics, glass, composite materials, carbon fiber and any mixture.

Especially preferred substrates are paper and card, and most preferably paper, such as vellum paper, usually used as a substrate for banknotes.

Preferably, the substrate is a sheet substrate, and more preferably essentially planar sheet substrate. Sheet, the substrate can be rigid or flexible, but is preferably elastic Absorbing infrared connection can be applied in the form of an image on one or both sides of the sheet substrate

Preferably, the product image is a printed product, respectively, paper product, which is sealed on both sides. Preferably, it is sealed painted on both sides. It may be applied in the form is zobrazenie absorbing infrared connection to create a protective image on one or both sides.

Can be used in more than one absorbing infrared connection deposited on a sheet substrate, and each absorbing infrared connection can be applied simultaneously or sequentially.

Product image may include packaging, such as pharmaceutical cardboard box, garment, label or the like. It may include an identification document, such as ID card, passport or driver's license the Product with the image may include a credit card, a receipt or ticket, for example a ticket to the cinema or theater, or a ticket or train ticket.

The product image may have a monetary value It can represent, for example, a certificate for a share or a certificate with a seal or a tax receipt (for example, the sticker on the payment of tax on vehicle).

In some forms of the implementation of the product with the image may include one or more additional protective elements. For example, it may include one or more additional protective images. These protective image may contain compounds detected using infrared radiation, or may contain compounds that are detected by other types of radiation, such as ultraviolet or visible emission is m

Alternative and/or optionally one or more additional protective elements may be selected from the hologram, the metal strips passing through the substrate, a watermark or relief area.

Product image may include as a protective signs gravure printing, microprinting, the background image or the green or the red phosphorus.

In especially preferred forms of implementation of the product with the image includes as protective elements blend of hidden and visible signs. Visible signs are signs which can be determined by visual inspection of the product, such as adding a background image, Secret signs include signs that may be detected in response to a stimulus, such as the use of ultraviolet or infrared light

Most preferably, the product image is a bill.

In preferred forms of implementation of protective product image with the image of the present invention is suitable for inclusion in a security sign in the bill.

Thus, absorbing infrared connection of the protective image of the product with the image of the present invention typically exhibits good resistance to light. Preferably, it is showing good resistance to washing. Preferably, it exhibits good resistance to solvents. Preferably, absorbing infrared connection protective image of the present invention shows sufficient stability to light and resistance to washing in order to be suitable for inclusion in the bill.

Usually there are 22 test for resistance, which can be subjected to banknote in order to determine the suitability of any present protective characteristics. They include chemical resistance to the following solvents: xylene, hydrochloric acid, sodium hydroxide solution, tetrachlorethylene.

To assess the suitability of the product with the image of the present invention for use in the form of banknotes can be measured infrared absorption protective image, and then the product with the image is immersed at room temperature in a chemical glass with an appropriate solvent for 30 minutes. The product image is extracted, dried and again measure its infrared absorption. Any change in the absorption is then assessed on a scale of 0-4, with 4 indicates no change, while a 0 represents a significant (>50%) change.

Product image may also be subjected to standard tests for resistance to washing, as well as tests for resistance to light To test for resistance to washing is measured infrared absorption protective image of the product with the image and then it is subjected to the cycle test with home washing, in which it is washed in a solution of a suitable detergent. After washing infrared absorption protective image product image again measured, and any change in the absorption again evaluated according to the corresponding scale.

Test for resistance to light involves the exposure of the product with the image of the accelerated fading light in the camera with xenon light. Infrared absorption protective image product image is measured and then placed in the camera with xenon light together with a set of 8 blue standards for wool and exhibit with xenon light. Infrared absorption protective image is determined by the discoloration of each standard blue wool. Light resistance was evaluated as the highest standard blue wool, in which there has been no significant change in the infrared absorption. Standard blue wool 8 represents the highest level of resistance to light, while 1 is the lowest level. Security image, suitable for use on the banknote has the standard blue wool, equal to at least 4.

Preferably, the protective product image with the image with the composition of the present invention demonstrates the stability to light, which is equivalent to at least the standard blue DL is wool 5, more preferably at least standard blue wool 6.

According to a third aspect of the present invention proposed the use of the compounds of formula:

,

,

or

or its salt or polymer deposited on at least part of the substrate, in the form of absorbing infrared radiation of an additional agent in the protective image printed on the substrate of the product with the image.

- M is a metal selected from elements of group 3 to 10 (Group IIIB to VIII) or lanthanide;

- R1selected from hydrogen, phosphonate, sulfonate, nitro, halogeno, cyano, thiocyano, thioalkyl, tiarella, alkyl, alkoxy, aryl, aryloxy, amines, substituted amines and substituted aryl;

one of R2and R3represents oxygen and the other of R2and R3is a NO,

n is a number corresponding to half of the coordination number of the metal M;

- each of L and L' represents independently a ligand that forms a complex with the metal M; and

- y represents a number that corresponds to the coordination number of the metal M;

where the specified security image is not intensely colored.

Sootvetstvenno is absorbing infrared connection, the coating, substrate and product image are the same as described for the first aspect of the invention.

According to a fourth aspect of the present invention, a method for authentication of a product with the image of the first aspect, comprising the exposure of specified products with the image of a radiation having a wavelength from 800 to 900 nm, and measuring the reflection of a specified radiation.

For the genuine product with the image of the reflection in the shield area of the image is respectively less than 50%.

The method according to the fourth aspect may be implemented using any suitable detector. One suitable device is a scanning spectrophotometer Shimadzu UV-3101 PC UV-VIS-NIR. Can also be used an infrared camera.

In the typical case applied radiation and measure its reflection, thus making possible the calculation of the absorption. Preferably, in the method according to the fourth aspect of using a card reader. The reader may include an infrared emitter and an infrared detector.

The method may further include measuring the degree of absorption of infrared radiation at the selected wavelength. Thus, can be measured relative absorption or reflection in percent.

With whom persons according to a fourth aspect of the present invention in some forms of exercise can provide fast, qualitative determination of the presence or absence of absorbing infrared radiation material by a quick check of absorption in a wide range or absorption at a specific wavelength.

Alternatively, the method can be used to quantify the degree of absorption at a specific wavelength. The more accurately can be measured infrared absorption spectrum of the product, the harder it would be to forge such a product

The reader may be embedded in the device, such as a scanner passports, a device for cards with pin (chip-and-pin) or automated teller machine (ATM). Alternative reading device can be supplied independently in the form of a mobile device. The reader may be prompted, for example, in the form of a portable device detection "pencil" type, which would give the answer about the acceptance/rejection during sample scanning

The method according to the fourth aspect may be periodically performed on randomly selected products or it can be performed regularly on each product. For example, the ATM may be included photosensitive diode for measuring the absorption of infrared radiation at a predetermined wavelength for each of the banknote. Thus, counterfeit bills could easily be detected.

DESCRIPTION THE EXAMPLES of carrying out the INVENTION

For a better understanding of various aspects of the invention and to demonstrate how this can be implemented in the form of the invention, the invention will be described with the following non-limiting examples.

Example 1

Green pigment that absorbs infrared radiation (pigment green B, CI pigment green 8), was synthesized by the following method, the structure of the pigment is presented below:

2-Naphthol (10 g, of 0.07 M) was dissolved in a warm solution of sodium hydroxide (2.8 g, of 0.07 M) in distilled water (120 ml). The solution was cooled to 0-5°C was added sodium nitrite (5 g, 0,073 M). The solution was stirred and slowly added to 5,6 M sulfuric acid (17 ml) for 90 minutes; the solution was maintained at 0-5°C. throughout the addition of an acid. The solution was stirred for another 1 hour after complete addition of the acid, after which was added sodium metabisulfite (13.3 g, of 0.07 M), and the suspension was stirred until such time as nitrosoguanidine is completely dissolved, to obtain a green solution; the solution was stirred for another 30 minutes, after which the pH was brought to 6.5. Was added a solution of iron sulfate heptahydrate II (6.4g, is 0.023 M) in distilled water (10 ml), then a small amount of sodium hydroxide solution to obtain a green precipitate. Sediment lane is massively for 30 minutes and then collected by filtration. The precipitate was thoroughly washed with distilled water and finally dried in a vacuum desiccator. The iron complex II was purified by dissolving in a minimum amount of dimethylformamide, filtering the solution to remove solids and at the end of the deposition of iron complex II by adding water. Green iron complex II (pigment green B) was collected by filtration and dried in a vacuum desiccator.

Example 2

The method described in Example 1 was repeated, but in this case, instead of iron sulfate heptahydrate II was added to the uranyl chloride cobalt II (5.5 g, is 0.023 M) to obtain a brown complex of cobalt.

Example 3

The method described in Example 1 was repeated, but in this case, instead of iron sulfate heptahydrate II was added to the uranyl chloride lanthanum III (8.6 g, is 0.023 M) with a light green complex of lanthanum.

Example 4

The method described in Example 1 was repeated, but in this case, instead of iron sulfate heptahydrate II was added dodecahydrate of aluminum sulfate-potassium (10,9 g 0,023 M) to obtain the green complex aluminum

Example 5

The method described in Example 1 was repeated, but in this case instead of 2-naphthol used resorcinol (7,7 g 0,07 M) obtaining dendritic polymer of green iron complex; the pigment is resistant to washing and to light and is available in p is d name of "solid green On". The structure of the polymer complex of iron 3:1 is presented below:

Example 6

The other polymer is a green pigment that absorbs infrared radiation, synthesized by nitrosation of 2,6-dihydroxynaphthalene nitrous acid and subsequent complexation with iron. So, 2,6-dihydroxynaphthalene (2.8 g, 0,018 M) was dissolved in a warm solution of sodium hydroxide (5.6 g, 0.036 M) in distilled water (40 ml). The solution was cooled to 0-5°C was added sodium nitrite (2.5 g, 0.036 M). The solution was stirred and slowly added to 5,6 M sulfuric acid (9 ml) for 90 minutes, the solution was maintained at a temperature of 0-5°C. throughout the addition of an acid. The solution was stirred for another 1 hour after complete addition of the acid, after which was added sodium metabisulfite (6,84 g, 0.036 M), and the suspension was stirred until such time as nitrosoguanidine is completely dissolved, to obtain a green solution; the solution was stirred for another 30 minutes, after which the pH was brought to 6.5. Was added a solution of iron sulfate heptahydrate II (1,67 g 0,006 M) in distilled water (10 ml), then a small amount of sodium hydroxide solution to obtain a green precipitate. The precipitate was stirred for 30 minutes and then collected by filtration. The precipitate was carefully washed distillirovanna the th water and finally dried in a vacuum desiccator. The polymer complex of iron II was purified by dissolving in a minimum amount of dimethylformamide, filtering the solution to remove solids and at the end of the deposition of iron complex II by adding water. The iron complex II was collected by filtration and dried in a vacuum desiccator. The structure of the formed green polymeric complex of iron II is presented below:

Example 7

Naftowy green B (CI Acid green 1) is a water-soluble sulfonated derivative of pigment green B, which can be easily converted to water-insoluble pigment by conversion to its strontium, calcium, barium, magnesium, aluminum or zinc salt. Structure naftovogo green B below:

An alternative, some authors (Zollinger, Color Chemistry, Syntheses, Properties, and Applications of Organic Dyes and Pigments, 3rdEdition, Wiley-VCH, 2003) describe the structure of this dye as follows:

So, Naftowy green B (4.4 g) was dissolved in distilled water (75 ml) and was heated at 35°C. the Alkaline resin solution obtained by dissolving the resin (0,83 g) and sodium hydroxide (0.3 g) in distilled water (30 ml) at 50°C., and an aqueous solution of barium chloride, obtained by restoreledstate sodium chloride (4.0 g) in distilled water (30 ml), at the same time was added to stir the dye solution at 35°C. the dye Solution was heated to boiling and boiled for 10 minutes, then added cold distilled water (100 ml) for cooling a suspension of Precipitated pigment green barium pigment was collected by filtration, thoroughly washed with cold distilled water and then dried in a vacuum dessicator overnight.

Example 8

The method described in Example 7 was repeated, but in this case instead of the dihydrate of sodium chloride used uranyl calcium chloride (4.0 g) to precipitate the dye in the form of water-insoluble green pigment.

Example 9

The method described in Example 7 was repeated, but in this case instead of the dihydrate of sodium chloride used uranyl strontium chloride (4.0 g) to precipitate the dye in the form of water-insoluble green pigment.

Example 10

The method described in Example 7 was repeated, but in this case instead of the dihydrate of sodium chloride used uranyl magnesium chloride (4.0 g) to precipitate the dye in the form of water-insoluble green pigment.

Example 11

The method described in Example 7 was repeated, but in this case instead of the dihydrate of sodium chloride used dihydrate zinc acetate (4.0 g) to precipitate the dye in the form of water-insoluble green pigment

Example 12

The method described in Example 7 was repeated, but in this case instead of the dihydrate of sodium chloride used dodecahydrate of aluminum sulfate-potassium (4.0 g) to precipitate the dye in the form of water-insoluble green pigment.

Example 13

Protective inks for gravure printing was obtained by dispersion of the absorbing infrared radiation of a pigment in a commercially available composition of inks for gravure printing. So, absorbing infrared radiation pigment (0.5 g)synthesized in Example 1 was dispersively based yellow ink for gravure printing (24.5 g) (Gleitsmann Security Inks GmbH) on a three-wheel kraskoterke; and the basis for offset inks are prepared in the form of a composition as shown in Table 1:

Table 1
The composition of the base inks for gravure printing
ComponentWeight (%)
The modified carrier*38,0
Pigment2,0
Calcium carbonate49,6
Polyethylene wax (micronized)/td> 8,0
Desiccant (10% octoate manganese)0,3
Desiccant (18% octoate cobalt)0,1
Aliphatic mineral oil (boiling range 170-260°C)2,0
* Modified media consisted of technical media/varnish (80%), Trional NC 9 (Lawter International, Belgium) and polymerized Tung oil (20%).

Proof absorbing infrared radiation protective inks for gravure printing received on vellum paper using the printer for proofs Prüfbau; and inks were printed with a layer thickness of 90.0 GM2. The IR absorption of the obtained print was measured on a spectrophotometer Shimadzu UV-3101 UV-VIS-NIR, including reflective invoice spindle head, and the print shows the IR absorption was 94.2% at a wavelength of 800 nm.

Example 14

Protective inks for letterpress was obtained by dispersion of the absorbing infrared radiation of a pigment in a commercially available composition of inks for letterpress. Thus, absorbing infrared radiation pigment (0.5 g)synthesized in Example 1 was dispersively based yellow paint for visocosity (24.5 g) (Gleitsmann Security Inks GmbH) on a three-wheel kraskoterke; the basis of inks for letterpress prepared in the form of a composition as shown in Table 2:

Table 2
The composition of the base inks for gravure printing
ComponentWeight (%)
Lac*63,5
Pigment4,5
Calcium carbonate22,3
Flaxseed oil5,1
Aliphatic mineral oil (boiling range 260-310°C)4,0
Hydroquinone0,3
Desiccant (10% octoate manganese)0,2
Desiccant (18% octoate cobalt)0,1
* Varnish consisted of a modified phenolic resin (40%), linseed oil (20%), not containing aromatic compounds mineral oil (boiling range 280-310°C) (20%), not containing aromatic compounds mineral oil (interval CI is placed 260-290°C) (19,3%) and isopropylate (ethylacetoacetate) aluminum (0,7%).

Proof absorbing infrared radiation protective ink for letterpress received on vellum paper using the printer for proofs Prüfbau; and inks were printed with a layer thickness of 4.0 GM-2. The IR absorption of the obtained print was measured on a spectrophotometer Shimadzu UV-3101 UV-VIS-NIR, including reflective invoice spindle head; the print showed IR absorption 61,3% at a wavelength of 800 nm.

Example 15

Protective inks for offset printing was obtained by dispersion of the absorbing infrared radiation of the pigment is commercially available a paint composition for offset printing. So, absorbing infrared radiation pigment (1.0 g)synthesized in Example 1 was dispersively based yellow ink for offset printing (24,0 g) (Gleitsmann Security Inks GmbH) on a three-wheel kraskoterke; and the basis inks for offset printing prepared in the form of a composition as shown in Table 3:

Table 3
The composition of the base inks for gravure printing
ComponentWeight (%)
Lac*67,0
Pigment4,5
Calcium carbonate9,2
Flaxseed oil13,7
Polyethylene wax5,0
Hydroquinone0,3
Desiccant (10% octoate manganese)0,2
Desiccant (18% octoate cobalt)0,1
* Varnish consisted of a modified phenolic resin (40%), linseed oil (20%), not containing aromatic compounds mineral oil (boiling range 280-310°C) (20%), not containing aromatic compounds mineral oil (boiling range 260-290°C) (19,3%) and isopropylate (ethylacetoacetate) aluminum (0,7%).

Proof absorbing infrared radiation protective ink for offset printing was obtained on vellum paper using the printer for proofs Prüfbau, and inks were printed with a layer thickness of 2.0 GM-2. The IR absorption of the obtained print was measured on a spectrophotometer Shimadzu UV-3101 UV-VIS-NIR, including reflective invoice spindle head; the print showed my IR absorption is s 62,5% at a wavelength of 800 nm.

Example 16

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 2 (2.5 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2; this data prints showed IR absorption 46,2% at a wavelength of 800 nm.

Example 17

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 3 (1.25 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2; this data prints showed IR absorption of 19.2% at a wavelength of 800 nm.

Example 18

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 4 (1.25 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2; this data prints showed IR absorption 35,7% at a wavelength of 800 nm.

Example 19

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 5 (0.5 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received a layer thickness of 2.0 GM-2; this data prints the demon who was tarawali IR absorption to 59.8% at a wavelength of 800 nm.

Example 20

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 6 (2.5 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2; this data prints showed IR absorption of 47.8% at a wavelength of 800 nm.

Example 21

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 7 (2.5 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2; this data prints showed IR absorption to 92.4% at a wavelength of 800 nm.

Example 22

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 8 (2.5 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM2; this data prints showed IR absorption and 63.3% at a wavelength of 800 nm.

Example 23

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 9 (2.5 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2; this data prints demonstrate Aravali IR absorption 61,3% at a wavelength of 800 nm.

Example 24

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 10 (2.5 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2; this data prints showed IR absorption 77,3% at a wavelength of 800 nm.

Example 25

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 11 (2.5 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2; this data prints showed IR absorption 63,5% at a wavelength of 800 nm.

Example 26

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 12 (2.5 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2; this data prints showed IR absorption 59,7% at a wavelength of 800 nm.

Example 27

The method described in Example 1 was repeated, but in this case instead of the water-insoluble green pigment 2-naphthol used 1-naphthol, the structure of this pigment to the following:

.

Example 28

The method described in Example 15 was repeated, n is in this case, the IR absorber, synthesized in Example 26 (1 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received a layer thickness of 2.0 GM-2; this data prints showed IR absorption 61,5% at a wavelength of 800 nm.

Example 29

The iron complex and 2,3-dihydroxynaphthalene (3.1) was synthesized by the following method. 2,3-Dihydroxynaphthalene (0,0051 M 0,82 g) (Aldrich) was dissolved in methanol (50 ml) and slowly added to a solution of iron sulfate heptahydrate II (0,0017 M, 0.5 g) (Aldrich) in distilled water (50 ml). The solution was heated to boiling for 5 minutes to obtain a dark blue/black pigment. The pigment was collected by filtration, thoroughly washed with cold water and dried in a vacuum desiccator. The structure of the pigment is presented below:

The structure of the complex of iron and 2,3-dihydroxynaphthalene (3:1)

Example 30

The method described in Example 15 was repeated, but in this case, the IR absorber, synthesized in Example 29 (1 g)was used instead of the absorber, synthesized in Example 1. Test prints using a Prüfbau received when the layer thickness of 6.0 GM-2while these prints showed IR absorption to 59.2% at a wavelength of 800 nm.

Example 31

Color pairs were obtained with the following compositions of colors by shading the base color paint is La leveling paint colors, obtained after adding pigment green b

Main colorThe color of the imagePigment green B (%), added to the base paintIR reflection (%) at 800-840 nm
Transparent to infrared whitePale green540
Transparent to infrared whiteLight green1028
Transparent to infrared whiteGreen1523
The main color is 680141Greenish-blue1227
The main color is 680150Bluish-green1220
The main color is 680102Yellowish-green1225
The main color is 68010 Green1227

Example 32 (comparative)

Aminiya dyes: water-soluble cationic dyes were made water-insoluble pigments by complexation with phosphonoformate acid. The original dyes A, A and A came Gentex Optics Inc. (USA). However, their maximum IR absorption was observed at 900-1200 nm and thus was outside the desired absorption band 800-900 nm. Pigments are dark blue and green and give intensely colored prints even at low concentrations. They also did not meet the requirements of chemical resistance, the complexes were destroyed in the sodium hydroxide solution.

Example 33 (comparative)

Polycyclic VAT dyes: water-insoluble dyes, such as Cibanon green BF-MD, CI VAT green 1 (Ciba) and Cibanon blue BOA-01, CI VAT blue 20 (Ciba) showed favorable properties, stability to light and chemical resistance, but has not reached an acceptable IR absorption in the region of 800-900 nm. They are also intensely colored and to achieve the desired characteristics of the IR absorption should be used in relatively high concentrations, obtained intensely colored areas of the image.

Example 34 (comparative)

Cyanine dyes: water-soluble cationic dyes were converted into water-insoluble pigments by complexation with phosphonoformate acid. The original dye IR-792 perchlorate and dimethyl{4-[1,5,5-Tris(4-dimethylaminophenyl)-2,4-pentadienyl]-2,5-cyclohexadiene-1-ilidene}ammonium perchlorate was supplied Aldrich (UK). These dyes have provided suitable characteristics, but suffered from the properties of low resistance to light, standard blue wool 3 in comparison with the standard blue wool at least 6 for pigment green b

Example 35 (comparative)

Squarewave dyes: colorless water-soluble anionic dye was converted into water-insoluble pigment by education of its calcium, barium chloride or strontium varnishes. Used dye represented the research sample synthesized at the Department of colour and polymer chemistry, University of Leeds This dye was selected because of its colorless nature and intense characteristics of IR absorption. However, water-insoluble lucky this specific squarewave dye did not give appropriate IR characteristics in the desired range of 800-900 nm.

1. The product image that includes a substrate having disguised or hidden security image printed on at least his hour is ü, which gives less than 50% of the reflection of radiation at a wavelength of from 800 to 900 nm, where the protective image contains absorbing infrared radiation of a compound selected from

,
or,
or its salt, or a polymer, where
- M is a metal selected from iron, cobalt, Nickel, aluminum, scandium, chromium, vanadium, titanium, manganese and lanthanide;
- R1selected from hydrogen, phosphonate, sulfonate, nitro, halogeno, cyano, thiocyano, thioalkyl, tiarella, alkyl, alkoxy, aryl, aryloxy, amines, substituted amines and substituted aryl;
one of R2and R3represents oxygen and the other of R2and R3represents NO;
n is a number corresponding to half of the coordination number of the metal M;
- each of L and L' represents independently a ligand that forms a complex with the metal M; and
- y represents a number that corresponds to the coordination number of the metal M;
where absorbing infrared connection does not create intensely colored protective image, and where the security image is pale, colorless or slightly colored.

2. The product image according to claim 1, where M is selected from iron, Koba is it and lanthanum.

3. The product image according to claim 1 or 2, where absorbing infrared radiation, the compound is a salt of the formula:
,
where M, n and R1, R2and R3are as defined in claim 1, X represents a cation of a metal selected from a metal of group 1 or 2 and aluminum, and the sum of m and t corresponds to the total number of negative charges on the connection.

4. The product image according to claim 3, where the salt is selected from







and
.

5. The product image according to claim 1 or 2, where absorbing infrared radiation, the compound has the formula

or
,
where M, R2and R3are as defined in claim 1, L1-L6and L1'-L6'are ligands independently selected from chlorine, bromine, hydroxyl, water, or any number of pairs of L3-L6and/or L3'-L6'can be combined into a single ligand, forming a ring structure with the metal M, and can be formed from 1,3-dinitroso-2,4-dihydroxybenzene or 1.5-dinitroso-2,6-dihydroxynaphthalene is, connected to the metal M via nitroso and hydroxyl groups.

6. The product image according to claim 1 or 2, where absorbing infrared connection is a dendritic polymer, in which each M forms a complex with three dinitroso-2,4-dihydroxybenzaldehyde or three dinitroso-2,6-dihydroxynaphthalene groups (preferably 1,3-dinitroso-2,4-dihydroxybenzene, 1.5-dinitroso-2,6-dihydroxynaphthalene or 1,5-dihydroxy-4,8-dinitronaphthalene).

7. The product image according to claim 6, in which absorbing infrared radiation of a compound selected from

8. The product image according to claim 1 or claim 2, representing the bill.

9. The product image according to claim 1 or claim 2, which further comprises one or more additional protective elements.

10. The product image according to claim 9, which includes hidden and non-hidden protective elements.

11. A method of manufacturing a product image, comprising the following stages:
(a) providing the substrate; and
(b) application in the form of an image of absorbing infrared radiation, compounds selected from:
,
,
or,
or its salts or poly the EPA on at least a portion of the substrate to create a disguised or hidden protective image, which is intensely colored and less than 50% of the reflection of radiation at a wavelength of from 800 to 900 nm, where
- M is a metal selected from iron, cobalt, Nickel, aluminum, scandium, chromium, vanadium, titanium, manganese and lanthanide;
- R1selected from hydrogen, phosphonate, sulfonate, nitro, halogeno, cyano, thiocyano, thioalkyl, tiarella, alkyl, alkoxy, aryl, aryloxy, amines, substituted amines and substituted aryl;
one of R2and R3represents oxygen and the other of R2and R3represents NO;
n is a number corresponding to half of the coordination number of the metal M;
- each of L and L' represents independently a ligand that forms a complex with the metal M; and
- y represents a number that corresponds to the coordination number of the metal M,
where absorbing infrared connection does not create intensely colored protective image and where the security image is pale, colorless or slightly colored.

12. The method according to claim 11, where at stage (b), the compound is applied in the form of an image on a substrate in a composition containing absorbing infrared connection and one or more additional pigments and/or one or more dyes.

13. The use of the compounds of formula
,
,
or,
or its salt or polymer deposited on at least part of the substrate, as absorbing infrared radiation of an additional agent in a disguised or hidden protective image printed on the substrate of the product with the image, where
- M is a metal selected from iron, cobalt, Nickel, aluminum, scandium, chromium, vanadium, titanium, manganese and lanthanide;
- R1selected from hydrogen, phosphonate, sulfonate, nitro, halogeno, cyano, thiocyano, thioalkyl, tiarella, alkyl, alkoxy, aryl, aryloxy, amines, substituted amines and substituted aryl;
one of R2and R3represents oxygen and the other of R2and R3represents NO;
n is a number corresponding to half of the coordination number of the metal M,
- each of L and L' represents independently a ligand that forms a complex with the metal M, and
- y represents a number that corresponds to the coordination number of the metal M,
where the specified security image is not intensely colored, protective image is pale, colorless or slightly colored.

14. The authentication method of the product with the image, as it defined what about in any one of claims 1 to 9, including the exposure of specified products with the image of a radiation having a wavelength from 800 to 900 nm, and measuring the reflection of a specified radiation.



 

Same patents:

FIELD: physics; signaling.

SUBSTANCE: invention relates to banking. The technical result is extension of service life and improving security of bank cards, banknotes and security papers with a rectangular shape. Corners of bank cards, banknotes or security papers with a rectangular shape are elliptically cut which converts them into a rectangle with rounded corners, and on adjacent sides which form the right top and/or left bottom corner there is light detector and an optical light guide with a light emitter, directed towards the former sharp corner. Light detectors, light guides and light emitters are placed in pairs on the lateral and adjacent sides. The light detector is placed at the edge of the bank card, banknote or security paper at a maximum possible distance from the position of the light emitter. There is also an additional light detector, light guide and light emitter which should be placed on a straight line which vertically intersects the bank card, banknote or security paper perpendicular its lateral sides and parallel its adjacent sides and should not be on lines of most likely bending of the bank card, banknote/security paper.

EFFECT: use of the method reduces production expenses and reduces loss on forgery.

3 dwg

FIELD: rendering of telecommunication services.

SUBSTANCE: system contains a number of one-time debit cards, at least one place of mentioned debit cards distribution which has at least one cash register, main server center, communication terminal, informational channel between cash register in debit cards distribution place and main server center. Each debit card contains additional identification symbol, hidden from user by opaque film and the main server center database contains at least three cells for every card. One of the cells contains information which identifies the card and which is printed openly on the card, the other cell contains information which identifies the card and which is hidden on the card by opaque film, and the third cell contains information about card payment.

EFFECT: prevention of service rendering for unpaid one-time debit cards.

4 cl, 4 dwg

The invention relates to a device for mutual authentication of two blocks of data

The invention relates to the means of production is not associated with the personality of funds authorization and verification authorization

The invention relates to the protection of intellectual cards re-loadable application tasks from unauthorized access

The invention relates to a device for conducting cash operations, and in particular to a mobile device that can operate over telephone service

FIELD: chemistry.

SUBSTANCE: invention relates to a compound of formula used as herbicides, in which Q1 is H or F; Q2 is a halogen provided that when Q1 is H, Q2 is Cl or Br; R1 and R2 independently denote H, C1-C6-acyl; and Ar is a polysubstituted aryl group selected from a group consisting of

a) , b) , c) in which W1 is a halogen; X1 is C1-C4-alkyl, C1-C4-alkoxy, C1-C4-halogenalkyl, -NR3R4; Y1 is C1-C4-alkyl, C1-C4-halogenalkyl, halogen or -CN, or when X1 and Y1 are taken together denotes -O(CH2)nO-, in which n=1; and R3 and R4 independently denote H or C1-C4-alkyl; W2 is F or Cl; X2 is F, CI, -CN, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-alkylthionyl, C1-C4-alkylsulphonyl, C1-C4-halogenalkyl, C1-C4-halogenalkoxy, C1-C4-alkoxy-substituted C1-C4-alkyl, C1-C4-alkoxy-substituted C1-C4-alkoxy, -NR3R4 or fluorinated acetyl; Y2 is a halogen, C1-C4-alkyl, C1-C4-halogenalkyl or -CN, or when W2 is F, Xz and Y2, taken together, denote -O(CH2)nO-, in which n=1; and R3 and R4 independently denote H or C1-C6-alkyl; Y3 is a halogen or -CN; Z3 is F, CI, -NO2, C1-C4-alkoxy, -NR3R4; and R3 and R4 independently denote H; derivatives on the carboxyl group which are suitable for use in agriculture.

EFFECT: compounds are excellent herbicides with a wide range action against weeds and excellent selectivity towards agricultural crops.

19 cl, 7 tbl, 69 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing 1-ethyl-2,3-dialkyl(phenyl)aluminacyclopent-2-enes of general formula (1): where R= n-C2H5, n-C3H7, n-C4H9, Ph. The method involves catalytic reaction of dialkyl(phenyl)-substituted acetylenes of general formula R-≡-R, where R= n-C2H5, n-C3H7, n-C4H9, Ph with EtAlCl2 in the presence of Mg powder in an ether solvent (tetrahydrofuran THF) at room temperature. The catalyst used is Cp2ZrCl2. The reaction is carried out in ethylene atmosphere for 6-8 hours.

EFFECT: method increases output of 1-ethyl-2,3-dialkyl(phenyl)aluminacyclopent-2-enes.

1 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a method for combined synthesis of 1-ethyl-2-alkylidenealuminacyclopentanes (1) and 1-ethyl-2-methylene-3-alkylaluminacyclopentanes (2) of general formula: , where R=n-C4H9, n-C6H13, n-C8H17. The method involves reaction of 1,2-alkadienes with organoaluminium compounds in the presence of a zirconocene dichloride (Cp2ZrCl2) catalyst at room temperature. The organoaluminium compound used is ethylaluminium dichloride (EtAlCl2). The reaction takes place in the presence of Mg powder in molar ratio R-CH=C=CH2:EtAlCl2:Mg:Cp2ZrCl2=10:(10-20):(10-14):(0.6-1.0) in an ethylene atmosphere in a tetrahydrofuran (THF) solution for 6-10 hours.

EFFECT: invention enables to obtain 1-ethyl-2-alkylidenealuminacyclopentanes (1) and 1-ethyl-2-methylene-3-alkylaluminacyclopentanes (2) without using initial reagents which are self-inflammable in air.

1 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a method for synthesis of dialkoxyorganoboranes, particularly to a method for synthesis of dialkoxyorganoboranes via ester exchange. The invention also relates to a method for synthesis of organo-oxazaborolidine catalysts (organo-CBS) and trialkylboroxins which are enantioselective catalysts for reducing ketones.

EFFECT: efficient method for synthesis of dialkoxyorganoboranes.

5 cl, 4 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to a compound of formula (I) where one of R1 and R2 represents -NH-X-Y-Z, and another represents -OH; where X represents -(CH2)m- where m is equal to 0, 1, 2, 3 or 4; Y represents carborane where at least one boron atom represents 10B; and Z represents H; and its pharmaceutically acceptable salts, solvates and stereoisomers. Also, the pharmaceutical compositions, application of the compound of formula (I) and a method of producing the compound of formula (I) are offered.

EFFECT: production of the compounds effective for boron neutron capture therapy.

15 cl, 6 ex, 3 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to organoaluminium synthesis catalysts, specifically to a catalyst for synthesis of 1-ethyl-2,3-dialkyl(phenyl)aluminacyclopent-2-enes, which can be used as components of catalyst systems in oligo- and polymerisation of olefin, diene and acetylene hydrocarbons, as well as in fine organic and organometallic syntheses. The disclosed catalyst contains a Cp2HfCl2 complex.

EFFECT: Cp2HfCl2 catalyst enables to obtain desired products - 1-ethyl-2,3-dialkyl(phenyl)aluminacyclopent-2-enes without using pyrophoric initial "AOC" with high selectivity.

1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to production of biodegradable polymers, particularly to a method of producing polylactides from a catalyst system, used in the food industry, medical engineering, pharmacology etc. The method involves opening and then polymerisation of rac- or L-lactide in a monomer melt at 120-200°C in the presence of a metal and with or without additives RxYyR'z. The metal has low electronic work function. , where M, M' and Y denote a metal selected from Li, Na, K, Mg, Ca, Fe, Al, Ga, Zn, La, Nd, Sm; RxYyR'z denote an adamantyl alcohol or an inorganic compound, R, R', A denote oxygen, halogen ion, hydroxide ion and an acid residue.

EFFECT: invention enables to obtain polylactide with a faster polymerisation process, high degree of monomer conversion and minimisation of formation of by-products.

14 cl, 2 tbl, 5 dwg, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing di-(2-ethylhexyl) phosphoric acid, which is used in extraction processes, ion exchangers, and neodymium salt thereof, which is used during catalysis. Disclosed is a method of producing di-(2-ethylhexyl) phosphoric acid and a solution of its neodymium salt in an aliphatic or acyclic solvent by reacting phosphorus trichloride with 2-ethylhexanol, followed by chlorination of the formed di-(2-ethylhexyl)phosphate and hydrolysis of di-(2-ethylhexyl) chlorophospate, wherein in order to obtain di-(2-ethylhexyl) phosphoric acid and its high-purity neodymium salt, hydrolysis is carried out through successive treatment of chlorophophate with jet steam at temperature 95-100°C and then with 20% aqueous solution of sodium hydroxide at temperature 105 -115°C, followed by treatment with hydrochloric acid in an organic solvent to obtain di-(2-ethylhexyl) phosphoric acid or with aqueous solution of neodymium chloride to obtain a solution of neodymium tris-[di-(2-ethylhexyl)] phosphate.

EFFECT: novel method of producing a high-purity compound and its neodymium salt.

9 cl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention refers to the method of obtaining exo-tricyclo[4,2,1,0 2,5]non-7-ene-3-spiro-1'-(3'-ethyl-3'-aluminium)cyclopent-7-ene of the general formula . Method involves reaction of a 3-methylene-exo-tricyclo[4.2.1.02,5]non-7-ene with triethylaluminium (Et3Al) in the presence of a zirconocene dichloride catalyst (Cp2ZrCl2) in molar ratio of 3-methylene-exo-tricyclo[4.2.1.02,5]non-7-ene:Et3Al:Cp2ZrCl2=10:(10-14):(0.6-1.0). The method is realised in an argon atmosphere at normal pressure in hexane for 5-7 hours.

EFFECT: method enables to obtain said composition which is used as a catalyst system component.

1 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: present invention relates to organic electroluminescent devices based on compounds of formula

where Y, Z is selected from N, P, P=O, C=O, O, S, S=O and SO2; Ar1, Ar2, Ar3 are selected from benzene, naphthaline, anthracene, phenanthrene, pyridine, pyrene or thiophene, optionally substituted with R1; Ar4, Ar5, Ar6, Ar7 are selected from benzene, naphthaline, anthracene, phenanthrene, pyridine, pyrene, thiophene, triphenylamine, diphenyl-1-naphthylamine, diphenyl-2-naphthylamine, phenyldi(1-naphthyl)amine, phenyldi(2-naphthyl)amine or spirobifluorene, optionally substituted with R1; E is a single bond, N(R1), O, S or C(R1)2; R1 denotes H, F, CN, alkyl, where the CH2 can be substituted with -R2C=CR2 -, -C=C-, -O- or -S-, and H can be substituted with F, optionally substituted aryl or heteroaryl, where R1 can form a ring with each other; R2 denotes H, aliphatic or aromatic hydrocarbon; X1, X4, X2, X3 are selected from C(R1)2, C=O, C=NR1, O, S, S=O, SO2, N(R1), P(R1), P(=O)R1, C(R1)2-C(R1)2, C(R1)2-C(R1)2-C(R1)2, C(R1)2-O and C(R1)2-O-C(R1)2; n, o, p, q, r and t are equal to 0 or 1; s = 1.

EFFECT: obtaining novel compounds - emission layer dopants, and novel electroluminescent devices based on said compounds which emit a blue colour.

18 cl, 91 ex, 6 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to novel derivatives of 1-allylimidazole with metal salts , where R denotes allyl, E denotes a metal, e.g. Zn (II) or Co (II), An denotes chlorine or acetate, n equals 2.

EFFECT: novel 1-allylimidazole derivatives having antihypoxic activity are obtained.

1 cl, 7 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: described is a novel compound - 1-acetyl-5,10-dioxy-5,10-dihydro-2H-anthra[2,3-D][1,2,3]triazole-7,8-dicarboxylic acid of formula , which can be used as a starting compound in synthesis of metal complexes of tetra[4,5]([6,7]1-acetyl-2H-naphtho[2,3-D][1,2,3]triazole-5,8-dione)phthalocyanine.

EFFECT: possibility of use as dyes or catalysts.

1 cl, 3 ex, 4 dwg, 1 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to tetra[4,5]([6,7]1-acetyl-2H-naphtho[2,3-D][1,2,3]triazole-5,8-dione)phthalocyanines of copper and cobalt of formula , where M denotes Cu and Co.

EFFECT: invention enables to obtain novel derivatives of phthalocyanines which can be used as dyes, as well as catalysts for various processes.

2 ex, 6 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to tetra-(5-acetylamino-7-heptyloxy)anthraquinonoporphyrazines of copper and cobalt of formula .

EFFECT: obtained compounds can be used as dyes and catalysts.

4 ex, 5 dwg,

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