RU2539980C2 - Dimming thermochromic device - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to dimming thermochromic device, which includes at least two light-transmitting substrates and at least one thermochromic layer, reversibly changing transmission of light and heat flows with change of its temperature in visible and/or nearest IR parts of spectrum. Thermochromic layer is made from thermochromic material, representing photocurable composition based on mixture of monomers and oligomers of derivatives of unsaturated acids, which contains complexes of transition metals, halogenides of alkali and/or alkali earth metals. Application of claimed invention makes it possible to simplify technology of production, reduce energy and labour consumption of the process of thermochromic triplex manufacturing, and reduce its cost.

EFFECT: device manufacturing is characterised by low production toxicity, availability and cheapness of raw materials.

12 cl, 3 tbl, 4 ex, 122 dwg

Description

The field of technology.

The invention relates to devices or devices for controlling the intensity, color, phase, polarization or direction of light emanating from an independent source, namely, devices for regulating lighting and energy conservation, and is intended, in particular, for the glazing of buildings, which includes glazing of windows, exterior and internal wall panels, partitions, doors, interior elements.

By thermochromic light control device is meant a device in which a thermochromic effect is observed and which includes a layer of thermochromic resin, which can be enclosed between glass plates or transparent plastic.

Under the thermochromic effect is meant a reversible change in the transmission of the device in the ultraviolet (UV) and / or visible and / or infrared (IR) spectral regions due to a change in the temperature of the device.

The thermochromic efficiency (TCE) of a material and / or device refers to the ratio of optical density at a given wavelength of optical radiation at high (60-85 ° C) temperature to optical density at the same wavelength at low (20-25 ° C) thermochromic temperature material.

The basic principles of operation of existing devices for controlling illumination by changing their light transmission include a change in transmittance due to an increase or decrease in scattering, reflection or absorption of light under the influence of an electric field, optical radiation, a change in the gas environment or temperature inside the device.

The prior art.

The prior art devices controlled by an electric field, which are two sheets of glass, between which a multilayer polymer composition (triplex) is placed, capable of changing the light transmission due to the absorption or scattering of light under the influence of an electric field. Common disadvantages of electrically controlled devices are the small number of operation cycles without compromising the operational parameters of the device, insufficient uniformity of coloring and high cost, which prevents their use for external glazing, the need to use an external power source and control systems, which complicates the design, reduces its reliability and is associated with Energy Consumption (Lee, ES et al. "Advancement of Electro-Chromic Windows." Lawrence Berkeley National Laboratory. California Energy Commission, Public Interest Energy Research (PIER) Program 2006, Final Rep ort 500-01-023. LBNL-59821. 101 p.).

Photochromic glasses are known that contain copper or silver halides, which reduce transmission in the visible region of the spectrum under the influence of ultraviolet radiation. However, such glasses are expensive, and the technology for the production of large-format sheet glass for glazing buildings has not been developed (Barachevsky V.A., Lashkov G.I., V.A. Tsekhomsky "Photochromism and its application" M .: Chemistry, 1977, 300 pp. ) Attempts to find new solutions using glasses containing titanium and tungsten oxides have not yet led to the advent of a new commercial product (Anneke Georg, Andreas Georg, "Photochromic Window System for Use in Building Envelopes", University of Freiburg Fraunhoffer Institute. Annual Report 2004. p. 18).

A change in the gaseous medium in a two-chamber gas-chrome double-glazed window due to the introduction of gaseous hydrogen into the space between the glasses leads to a change in light transmission, which is manifested in the appearance or disappearance of the color of the inner surface of the outer glass coated with a thin layer of tungsten oxide, the glass is discolored by introducing gaseous oxygen into the inter-glass space. The disadvantage of this solution is the design complexity and the need to use explosive and flammable gas mixtures (J. Carmodi et al. “Window Systems For High Performance Commercial Buildings.” Lawrence Berkeley National Laboratory California Energy Commission, Public Interest Energy Research (PIER) Program 2006, CEC-500-2006-052-AT14).

Temperature-controlled light-regulating devices are known from the prior art, which are two sheets of glass, between which a layer of liquid, gel, is placed, the light transmission of which varies with temperature due to a change in the temperature of light scattering in the layer.

In US patent No. 7306833, published December 11, 2007 under the headings of IPC E06B 3/00, E04C 2/54, G02F 1/15, G09G 3/19, describes a device consisting of two sheets of glass, the space between which is filled with a layer of hydrogel, consisting 30% from polyvinylcaprolactam and 70% from water. At temperatures exceeding 25-30 ° C, the light transmission of the device decreases from 80% to 10-15%, which is caused by an increase in light scattering in the hydrogel layer. Since the change in light transmission is not associated with a change in light absorption, the device does not have thermochromic properties.

Thermochromic materials based on transition metal oxides (V, Fe, Ni, W, Ti, Nb) are known in the prior art. They undergo a transition from a semiconducting to a conducting state (Mott transition) at a “critical” temperature T _c . Their main disadvantage is that for most of these materials T _c > 70 ° C, which makes them impossible to use for glazing buildings. To reduce T _c, transition metal oxides, in particular vanadium oxide, are modified by introducing impurities (F, W, Mo, Nb and Re, Sn and SiO ₂ ) into them.

In US patent No. 4401690, published 30.08.1983 under the headings of the IPC B05D 5/12; B05D 3/02; C03C 17/245, describes a method for manufacturing a thermochromic device comprising a glass substrate and a coating containing vanadium oxide, characterized by a reduced T _c , which is achieved by introducing metal compounds having a larger ionic radius than vanadium ionic radius, such as tungsten, into the vanadium oxide film , niobium, tantalum, iridium or molybdenum. However, a decrease in T _c leads to a decrease in the thermochromic efficiency of the material, since a change in light transmission in the operating temperature range occurs at an unacceptably low level of the initial light transmission of the layer (40-50%).

The disadvantages of the method for producing thermochromic glass with a layer of vanadium oxide are the need to use high (350-650 ° C) temperatures, vacuum and antioxidants to achieve the necessary V: 0 stoichiometry, as well as the difficulty of obtaining a layer over a large area [Moon-Hee Lee. "Thermochromic Glazing of Windows with Better Luminous Solar Transmittance" Solar Energy Materials & Solar Cells. 2002, v. 71, p. 537-540].

In US patent No. 4741859, published 03.05.1988 under the headings of IPC G02F 1/13, C09K 19/30, 19/12, describes a method of manufacturing a liquid crystal material showing thermochromic properties in the entire visible spectral range. The thermochromic properties of this material are manifested in the selective reflection of incident white light, creating bright rainbow colors that change with temperature. The material is intended, in particular, for use as ink. Disadvantage: insufficiently large temperature range of operation (-5 ÷ + 50 ° С) of the material prevents its use as a thermochromic layer for glazing of buildings.

Thermochromic polymer gels are known, including those containing transition metal complexes. These gels, in particular, based on the polyester - ethylene oxide - carboxyvinyl system, turned out to be non-lightfast and short-lived in operation due to fatigue phenomena. It turned out to be impossible to use the best samples of thermochromic organic compounds and their compositions for adaptive glazing due to high working temperatures (about 80 ° C) and insufficient temperature resistance [S.M. Lamport "Chromogenic Switchable Glazing:

Towards the Development of the Smart Window, "Proceedings of Window Innovations, 1995. Toronto, Canada, June 5-6, 1995].

US Pat. No. 6,489,018 B2 to classes B32B 11/02, B32B 5/16, B32B 5/30, published December 2, 2002, proposes a thermochromic light-transmitting laminated device consisting of a substrate and a thermochromic layer made of a transparent resin and dispersed in her microcapsules of pigment with a diameter of 1 to 5 microns, with thermochromic properties. The thermochromic properties of the pigment are due to the presence of a coloring organic compound in it, which is an electron donor, a compound, which is an electron acceptor and a reaction medium, on which it depends on what temperatures the color reaction between the donor and the electron acceptor will occur. The disadvantage of this device is that the microcapsules have a size exceeding the wavelength of visible light (of the order of 0.3-0.7 μm), which causes a decrease in the efficiency of the device, since light loss due to light scattering on the microcapsules is a source of decrease in light transmission, independent of temperature.

US Pat. No. 3,119,201, published June 29, 1965 under the heading IPC B32B 17/10, describes a method for manufacturing safe thermochromic glass based on the use of plasticized polyvinyl butyral containing cobalt amino complexes. Disadvantages: firstly, the thermochromic effect of the material is insufficient for the material to be heated by sunlight, and the inventors have to use an additional source of electrical heating, which complicates the design, and secondly, the light transmission ceases to decrease when the temperature reaches 50 ° C, while how the glazing temperature when exposed to sunlight in summer can reach 70-80 ° C at the latitude of Paris.

US Pat. No. 6,446,402, published September 10, 2002 under the headings of IPC G02F 1/01 and G02F 1/23, describes a thermochromic device that can be used to transmit sunlight into a building at low ambient temperature and absorb solar radiation at high temperature the environment.

This thermochromic device includes a translucent substrate, a thermochromic material that reversibly changes the light transmission from large to small with increasing temperature, and a material with constant light transmission. The thermochromic material is in the substrate or in a layer deposited on the substrate and comprising from 0.1 to 20 wt.% Of the substrate or layer, and the material with constant light absorption can be in the same layer or in a layer different from the layer of thermochromic material. In particular, the thermochromic device may include a low emissivity layer. We described such a design earlier, where it was shown that it provides energy saving due to the fact that in the cold season (winter) a thermochromic layer optimized for “operation” in the temperature range above the “comfortable” (20-25 ° C) remains highly transmissive (See: 1. OV Yanush, VA Milovidov, IU Halopenen "Variable transmission window for automatic regulation of lighting". Abstracts of International Symposia "Optical Thin Films on Glass", USA, Wheeling, West Virginia, October 18-21, 1998. P.37 .; 2. I. Halopenen, O. Yanush, V. Milovidov "Smart laminated glasses for regulation of lighting". // Proceedings of the 6 ^th International Conference on Architectural and Automotive Glass - Glass Processing Days. - 1999. - P.324-326 .; 3. OV Yanus h, IU Halopenen, T. Markova, VA Milovidov, SS Kholchansky, RE Arutjunjan, IK Maksimov, H. Kawahara "Laminated glass with variable transmission for daylight regulation" // Proceedings of the 7 ^th International Conference on Architectural and Automotive Glass - Glass Processing Days. - 2001 .-- P.324-326).

The disadvantage of the device according to US patent No. 6446402 is the complexity of the multilayer structure, each of the layers of which provides a change in light transmission in a narrow temperature range, as well as the need to use protective coatings to increase light resistance, the use of additional absorbing materials that provide heating of the glazing with sunlight, but lead to a decrease in the initial light transmission level.

In US patent No. 7525717, published on April 28, 2009 under the headings of the IPC G02F 1/01, G02F 1/00, G09G 3/34, C07F 15/04, in US patent No. 7538931, published on 05/26/2009 under the headings of the IPC G02F 1/01, in US patent No. 7542196, published 02.06.2009 under the headings of the IPC G02F 1/01, G02F 1/15, G09G 3/34; in US applications: WO 2008/028099 published March 6, 2008 under the heading of IPC G02B 21/02; No. 2008/0105851, published on 05/08/2008 under the heading of IPC G01K 11/16 and No. 2009/0283728, published on 11/19/2009 under the heading of IPC G02B 5/23, thermochromic devices are described that are characterized by a reversible change in the transmission of optical radiation with temperature, which is achieved by using layers of thermochromic materials with ligand exchange.

Materials include ions of at least one transition metal, which experience thermally induced changes in chemical bonds in the complex and / or coordination of ligands around the transition metal ion, which changes the ability of ions to absorb optical energy when temperature changes.

These patents have identical contents in the description and examples. Essentially, they present a well-known mechanism of one of the common types of thermochromic effect [Sone K, Fukuda Y Inorganic Thermochromism Berlin Springer-Verlag, 1987, 184p.], Which consists in a reversible change in temperature of the composition and / or structure of transition metal complexes (s ) in thermochromic material.

For the prototype of the present invention adopted US patent No. 7525717 for the invention of "Multilayer thermochromic system with exchange of ligands", published 04/28/2009 according to the IPC indices G02F 1/01, G02F 1/00, G09G 3/34, C07F 15/04. The patent proposes a thermochromic device that changes the transmission in the visible and / or near infrared range under the influence of temperature, including two thermochromic layers made of polymers, in particular polyvinyl butyral, containing Co (II) and / or Ni (II) complexes with concentrations from 0 , 02 to 0.4 mol / kg of polymer, as well as halides, phosphines, phosphinates, diols, triols and polyols as ligands.

In the prototype and other patents of the same applicant (US patents 7542196, 7538931, US application No. 2009/0283728), the halides of some metals are used as a source of ligands, which, when the temperature rises, should become part of the transition metal complex, leading to a thermochromic effect.

One of the most important disadvantages of the prototype and other patents of the same applicant (US patents 7542196, 7538931, 6446402, 6084702, US application No. 2009/0283728) is the need to produce a thermochromic polymer film, which is a multi-stage process, including a unique synthesis of thermochromic complexes, the preparation of polymer mixtures, applying this mixture to a substrate (which must be necessarily flat in the prototype device), drying this mixture until the dehydrated thermochromic film is almost completely dehydrated, sealing triplex CA in an autoclave at high temperatures and pressures. The need to implement all of these stages leads to high costs of electricity, materials and time, and, as a consequence, the high cost of the final product.

The disadvantage of the prototype and other patents of the same applicant (US patents 7542196, 7538931, 6446402, 6084702, US application No. 2009/0283728) also consists in the fact that solvents, plasticizers and polymers are used, which in most cases are toxic substances (for example, the most frequently used: concentrated acids (sulfuric, hydrochloric, hydrobromic, hydroiodic, formic), alkalis (sodium and potassium hydroxides), hydrogen peroxide (30%), sodium hydride, benzyl chloride, 2,2-dimethoxypropane, diethylene glycol, dimethyl phthalate, hexachlor acetone, 2,2'-dipyridyl ketone, 2-mercapto-5-methylbenzimidazole, urethanes, poly-2-vinylpyridine, polystyrenes, polyacrylamide, polyvinyl methyl ether, etc. In addition, toxic metal halides are used as a source of ligands in the process of manufacturing thermochromic layers (Zn (II), Cd (II)), as well as phosphines, phosphinates, cyanates, thiocyanates, etc. As already mentioned, in the prototype there is a need for a high degree of dehydration of polymer thermochromic layers based on polyvinyl butyral, due to the fact that during the interaction of polyvinyl rubbing water forms a toxic product - butyric aldehyde (pp. 33-34 prototype).

The properties of substances by their toxicity used in the manufacture of thermochromic layers are widely known to specialists in this field of technology. The sources of information used by us that most fully reflect such information: 1 / GOST 12.1.007-76 “Classification and general safety requirements”; 2 / “Harmful substances in industry.” Handbook for chemists, engineers and doctors. Ed. 7th, per. and additional in three volumes. Ed. N.V. Lazareva and E.N. Levina. L., Chemistry, 1976. 3 / Chemical and Other Safety Information: http://msds.chem.ox.ac.uk, published from The Physical and Theoretical Chemistry Laboratory, Oxford University. 4 / Material Safety Data Sheet for various substances, 2010 ChemExper Inc. Catalog 5 / Catalog of Aldrich.http: //www.sigmaaldrich.com/catalog/.

Table 1 provides information on the toxicity of the most widely used substances in our application and in the prototype.

Table 1 Toxicity Information Substance Maximum allowable concentration (MPC) in the air of the working area, mg / m ³ The average lethal dose (LD50) for rats when introduced into the stomach, mg / kg Hazard class (determined according to columns 2 and 3 in accordance with [1]), toxicity Substances used in our application water not dangerous methyl red non toxic ethanol 1000 (pairs) 4 (low hazard) photocurable composition PK-P1 10 4 (low hazard) photocurable compositions K3-3, K3-4 10 4 (low hazard) Acrolat-NS photocurable composition 10 4 (low hazard) photocured composition Acrolat-13 4 (low hazard) CuBr 4 (low hazard) CoI ₂ · 2H ₂ O 6157 4 (low hazard) UV-11 photocurable composition 3 (moderately dangerous) Nal 4340 3 (moderately dangerous) KBr 3070 3 (moderately dangerous) NaCl 3000 (brine) 3 (moderately dangerous) LiBr 1800 3 (moderately dangerous) Cu (NO ₃ ) ₂ 794 3 (moderately dangerous) CoCl ₂ · 6H ₂ O 766 3 (moderately dangerous) Co (NO ₃ ) ₂ · 6H ₂ O 691 3 (moderately dangerous) Substances used in the prototype and other Pleotint patents, but not used in our application tribenzylphosphine 5 1 (extremely dangerous) isocyanate 0.05-1 1-2 (extremely or highly hazardous) highly toxic benzyl chloride 0.5 (pairs) 2 (highly dangerous) hexachloroacetone 0.5 2 (highly dangerous) herbicide

sodium hydride one toxic, 2 (highly dangerous) potassium hydroxide 0.5 (aerosol) 2 (highly dangerous) sodium hydroxide 0.5 (aerosol) 2 (highly dangerous) dimethyl phthalate 0.3 (vapors, spray) 2 (highly dangerous) diethylene glycol 0.2 (vapors and spray) 2 (highly dangerous) formic acid one 2 (highly dangerous) hydrogen peroxide (30%) 2 (highly dangerous) poly 2-vinylpyridine 0.5 (by monomer) 2 (highly dangerous), moderately toxic sulphuric acid 1 (aerosol) 2 (highly dangerous), highly active chem. substance concentrated hydrochloric acid 5 (pairs) 2 (highly dangerous), highly active chem. substance thiocyanate 0.8-0.9 2 (highly dangerous)

Unlike the prototype, more than half (53%) of the substances used belong to extremely and highly dangerous toxic substances (hazard classes 1 and 2, respectively), most of the substances used in our application are non-hazardous, low-hazard, and moderately hazardous (substances 4 and 3 hazard classes, respectively).

The disadvantage of the technology for manufacturing the thermochromic layer for the devices described in the prototype is that it requires thorough cleaning of the starting reagents, as well as intermediate products of long multi-component multi-stage synthesis (from 1 to 72 hours at 45-90 ° C) and the final product is a film - from impurities, in particular, from water impurities, the removal of which is carried out in an inert gas atmosphere without oxygen impurities, or in vacuum (prototype, example No. 290), and the intermediate products are dried after solvent removal using a “silica gel chromatograph” (prototype, p.129 pos. 50, 65; p. 130 pos. 15, 30, 45, 60).

Another disadvantage of the technology is that in the prototype (claim 5 of the formula, as well as the description on page 35 - "Substrates"), to enhance the adhesion of the thermochromic layer to the surfaces of the substrates and separation layers, they have to be treated with plasma, corona discharge, or ozone, which greatly complicates the technology of manufacturing a thermochromic device.

Disclosure of the invention.

The objective of the invention is to create a thermochromic light control and / or energy-saving device, in which the simplification of its production technology is achieved due to the absence of the need to manufacture a thermochromic polymer film, a much smaller number of stages, which are reduced to the simultaneous mixing of all components, pouring the obtained thermochromic composition into the glass between the glass-triplex ( which can have any, including non-planar form) and subsequent photocuring of the triplex. This will, in contrast to the prototype, significantly reduce the energy consumption and the complexity of the manufacturing process of thermochromic triplex, and thus reduce the cost of production. In the manufacture of the inventive thermochromic device will also be achieved by improving the properties through the use of materials characterized by ease of synthesis, low toxicity in production, operation and disposal, availability and low cost of raw materials.

The general approach used in the new technical solution in the selection of high-performance thermochromic materials consists in the selection of materials in which the ligands, as a rule, are the molecules of the solvent and / or plasticizer components and / or their interaction products (molecular adducts). In some cases, the same ligands with the same transition metal ion can form both low absorbing and highly absorbing complexes depending on the number of ligands and the symmetry of their arrangement around the transition element ion.

In contrast to the prototype, the solvents used in the synthesis of thermochromic materials participate in complex formation as strong field ligands, which form transition metal complexes with low oscillator strengths and relatively short-wavelength absorption bands due to electronic transitions inside the d shell (d-d transitions). In our case, such ligands are water molecules, monobasic alcohols, products of the interaction of molecules of various solvents and plasticizers (molecular adducts), which are non-toxic and / or low-toxic substances.

The use of such ligands makes it possible to achieve the highest possible transmission of light and heat fluxes at low temperatures (below the “threshold” temperature of 20–25 ° C, at which the “triggering” of the thermochromic device begins, that is, a decrease in the transmission with a further increase in temperature above 25 ° C) and effectively reducing the transmittance with increasing temperature above the "threshold".

Unlike the prototype, in the thermochromic layer of the developed thermochromic device, charge-transfer transition metal complexes are used, the absorption bands of which differ by record high oscillator strengths, which ensures high thermochromic efficiency of the layer material in the visible and ultraviolet (UV) regions of the optical radiation spectrum [Sone K, Fukuda Y Inorganic Thermochromism Berlin Springer-Verlag, 1987, 184p, Liver E Electron spectroscopy of inorganic compounds, M., Mir, 1987. T. 1-2].

The simplification of the manufacturing process of a thermochromic device, in comparison with the prototype, is achieved by the following means:

1. No need to manufacture a thermochromic polymer film.

2. The use of ready-made and readily available reagents, as well as combining all stages of the synthesis into one, which reduces to mixing all components and heating at temperatures of 60-80 ° C for less than 10 minutes, which significantly reduces the contact time of personnel with reagents, followed by filling the glass triplex space by the prepared composition and its subsequent polymerization under the influence of UV radiation.

2. The exception stages of obtaining intermediate products of long multi-component multi-stage synthesis, as well as procedures for cleaning the starting reagents and end products (thermochromic layers formed on the basis of photocurable compositions) from impurities of water, which in the inventive device, as a rule, is an integral component of thermochromic materials, and from other impurities, since they do not affect the thermochromic and other properties of materials.

3. The simplification of the technological process of manufacturing triplex in the inventive device is also achieved due to the smaller, compared with the prototype, the number of stages, which are reduced to the synthesis of the thermochromic composition, filling and photo-curing. In contrast to the prototype, the use of a thermochromic photocurable composition makes it possible to simplify the manufacturing technology of a thermochromic device due to the absence of stages for the manufacture of a polymer film, its drying, and also triplexing in an autoclave at elevated temperatures and pressures.

4. The use of layers of a photocurable composition with constant or variable light absorption to create interlayers between different thermochromic layers (formed by a water-soluble vinyl-based polymer) of the claimed device without additional processing of the surfaces of the layers to be joined by plasma, corona discharge, or ozone, as is done in the prototype (see prototype: paragraph 5 of the formula, as well as the description on page 35 - "Substrates").

The object of the invention is solved in a light control thermochromic device that uses original compositions of a thermochromic material in the form of a thermochromic photocurable composition. In this case, the thermochromic layers are made by photo-curing, mainly using substrates made of glass, as well as substrates made of polyethylene terephthalate, polycarbonate, polypropylene, or polyethylene. In this case, in contrast to the prototype, where a prefabricated thermochromic film of a certain thickness was placed in the inter-glass gap, the release of which is very difficult. In addition, the use of the film additionally imposed stringent requirements on the quality of the glass surface; the surface should not deviate from flatness by more than 5% of the film thickness in the developed prototype device. The liquid photocurable composition of the claimed device fills in the bumps, sharply reducing the precision requirements for the quality of the surfaces of the triplex glasses. In addition, a new opportunity arises for creating environmental design elements of complex configuration: “caps”, “peaks”, spherical-shaped elements, glass sculptures, etc., which was unattainable when using prototype film technology.

The light-regulating thermochromic device includes at least two light-transmitting substrates and at least one thermochromic layer that reversibly changes the transmission of light and heat flux when its temperature changes in the visible and / or near infrared spectral regions, in which, unlike the prototype the thermochromic layer is made of a thermochromic material, which is a photocurable composition based on mixtures of monomers and oligomers of derivatives of unsaturated acids, containing complexes of transition metals and gal alkali and / or alkaline earth metal oxide.

These materials have high thermochromic efficiency (Table 2 (examples 1-21, figures 1-20)).

The thermochromic device may contain at least one solvent or plasticizer. The use of a solvent or plasticizer leads to an increase in the efficiency of light control (Table 2, examples 4-21, figures 4-20).

The thermochromic material further comprises nitrophenols.

This makes it possible to expand the color gamut of thermochromic transitions while maintaining and increasing the light fastness of the material and provide additional protection for the room from ultraviolet (UV) radiation (Table 2, example 21).

The thermochromic layer is made of a thermochromic material containing metal complexes with charge transfer.

Such compositions contribute to increasing the thermochromic efficiency of the inventive thermochromic device, due to the well-known high value of the molar extinction coefficient of the absorption bands, which makes it possible to effectively cut off UV radiation in the region of 200-400 nm (Table 2, examples 7, 14-16, 19, 20 of figure 7 , 12, 13, 15, 19, 20) without the use of UV absorbers and UV stabilizers, without which most of the examples of thermochromic layers specified in the prototype do not do (p. 37, 38 of the prototype. Examples 245, 254-280, 282, 286-294).

The light control thermochromic device contains at least one thermochromic layer of thermochromic material with a non-uniform area of color. This embodiment of the device is suitable for use in environmental design elements.

Thermochromic material can be a non-toxic or low toxic composition (Table 2. Examples 2, 3, Figures 2, 3). This condition is necessary due to the use of thermochromic devices for residential premises and for other purposes involving contact between a person and the device.

The dimming thermochromic device is convenient for use, since it allows you to significantly expand the color gamut of thermochromic transitions.

The light control thermochromic device may further include at least one polymer layer, which is a photocurable composition based on mixtures of monomers and oligomers of derivatives of unsaturated acids, with constant light absorption, containing transition metal complexes and alkali and / or alkaline earth metal halides, or nitrophenols, or azo dyes, or combinations thereof.

Examples of compositions and optical properties of the material of the polymer layers with constant light absorption are presented in Table 3 (examples 22-129, figures 22-122).

The constant light absorption polymer layer may contain at least one solvent or plasticizer.

The use of a solvent or plasticizer leads to an increase in the solubility of transitional halides, as well as alkali and / or alkaline earth metals and an expansion of the color gamut (Table 3, examples 104-129, figures 99-122).

A polymer layer with constant light absorption can be a non-toxic or low toxic composition (Table 3, examples 22, 23, 25, 29-31, 36, 48-50, 52-56, 82-84, 90, 100, 104, 110 , 111, figures 22, 23, 25, 29-31, 36, 48, 49, 51-53, 79-81, 87, 95, 99, 105, 106, respectively; examples from Option No. 1: Table 2, examples 2, 3, figures 2, 3). This condition is necessary due to the use of thermochromic devices for residential premises and for other purposes involving contact between a person and the device.

A polymer layer with constant light absorption is made of a material containing metal complexes with charge transfer.

Such compositions make it possible to effectively cut off UV in the region of 200-400 nm (Table 3, examples 22, 23, 25, 27, 36, 43-46, 48-50, 52 - 56, 61-84, 86, 87, 93 -99, 101-103, 106, 109, 112-116, 122, 126, 127, figures 22, 23, 25, 27, 36, 43-46, 48, 49, 51-53, 58-79, 80, 81, 83, 84, 88-94, 96-98, 101, 104, 107-111, 115, 119, 120, examples: Table 2, examples 7, 14-16, 19, 20, figures 7, 12, 13, 15, 19, 20) without the use of UV absorbers and UV stabilizers, without which most of the examples of thermochromic layers specified in the prototype do not do (p. 37, 38 of the prototype, Examples 245, 254-280, 282, 286-294 )

In addition, the use of transition metal complexes with charge transfer allows you to expand the color gamut of thermochromic devices, in particular, to create layers of bronze and gray colors, due to the absorption in the center of the visible range of 500-550 nm (Table 3, examples 84, 93, 94, figures 81, 88, 89, and also see examples: (Table 2, example 2, figure 2).

A polymer layer with constant or variable light absorption can have a non-uniform area color. This embodiment of the device is suitable for use in environmental design elements.

The light control thermochromic device may include at least one layer between the thermochromic layer and the substrate and / or layers with constant or variable light absorption, made of a photo-, or thermo-, or chemically curable composition based on mixtures of unsaturated acid monomers and oligomers, or an interlayer made of a water-soluble vinyl-based polymer containing at least one plasticizer and transition metal complexes including solvent or plastic components ikatora and / or halides, or mixtures thereof. The use of such layers between thermochromic layers makes it possible to expand the range of color transitions.

In all cases, the thermochromic device is convenient for use because the thermochromic layer, as well as the layer with constant or variable light absorption, does not leak from the space between the substrates in the event of cracks during the destruction of the thermochromic device (glass packet) and does not exert hydrostatic pressure on the substrates.

In contrast to the prototype, the use of a thermochromic layer in the form of a photopolymerizable layer in all cases allows us to simplify the manufacturing technology of a thermochromic device, due to the absence of unique synthesis stages, as well as the stages of manufacturing a thermochromic polymer film and its triplexing in an autoclave at elevated temperatures and pressure.

The advantage of performing a thermochromic layer in the form of a photocurable layer in the claimed device lies in the possibility of using standard industrial equipment and standard technology used in the manufacture of photocurable glass triplex.

Unlike the prototype, the simplification of the technological process of manufacturing a thermochromic device is achieved through the exclusive use of ready-made and readily available reagents, as well as combining all stages of the synthesis into one, which reduces to mixing all components and heating at temperatures of 60-80 ° C for a relatively short time ( maximum - within 0.5 hours) with the subsequent filling of the inter-glass space of the triplex with the prepared composition and its subsequent polymerization under UV radiation.

The use of photocurable thermochromic layers according to all options allows us to reduce the triplexing process by introducing a photocurable composition into a gap of a thickness of 0.01 mm (between the layer and the substrate, or between different layers) and subsequent polymerization for 15-40 minutes, which greatly simplifies and cheapens the manufacturing technology of the claimed thermochromic device, compared with the prototype. In addition, the use of such photocurable layers makes it possible to expand the range of color transitions.

The inventive thermochromic device is characterized by the maximum ease of manufacturing thermochromic material. The manufacturing procedure for all options is reduced to the simultaneous mixing of the components and short-term heating of the mixture. Moreover, unlike the prototype, there are no stages of preliminary complex synthesis of thermochromic complexes, the manufacture of a polymer film, and also triplexing in an autoclave at elevated temperatures and pressures.

The use of a light-regulating thermochromic device when performing polymer layers with variable or constant light absorption is expedient and only possible in the spaces between non-planar substrate substrates.

The best embodiments of the invention.

Table 2 shows the formulations of the compositions and the optical properties of the material of the thermochromic layer, made in the form of a photocurable layer with variable light absorption.

table 2 Example No. Components The average concentration of the components, mol / l The optical density D, measured at a wavelength of λ at different temperatures Layer thickness mm Figure number Wavelength λ, nm 20 ° C 70 ° C 85 ° C Examples to paragraph 1 of the formula one UV 11 photocurable composition 600 0.20 0.44 0.52 6 one So (asas) ₂ 8 g / l

2 photo-curable composition PC P1 535 0.65 0.36 0.28 one 2 CuBr ₂ 0.054 LiBr 0.23 5 photo-curable composition PC P1 620 0.18 0.54 0.66 8 3 CoI ₂ 0.001 LiCl 0.12 Examples to paragraph 2 of the formula four photo-curable composition PC P1 588 0.20 0.48 0.57 7 four water 1 vol.% (Over 100) CoBr ₂ · 6H ₂ O 0.01 5 photo-curable composition PC P1 590 0.50 0.80 0.90 5 5 water 1 vol.% (Over 100) Co (NO ₃ ) ₂ · 6H ₂ O 0.05 CoBr ₂ · 6H ₂ O 0.034 6 photo-curable composition PC P1 585 0.23 0.44 0.50 12 6 water 1 vol.% (Over 100) Co (NO ₃ ) ₂ · 6H ₃ O 0.0021 CoBr ₂ · 6H ₂ O 0.0058

7 photo-curable composition PC P1 388 1.0 2.94 3.52 one 7 methanol 26.7 vol.% (Over 100) water 1 vol.% (Over 100) 700 0.09 0.65 0.82 CoI ₂ · 2H ₂ O 0.1 8 photo-curable composition PC P1 one - methanol 18 vol.% (Over 100) water 5 vol.% (Over 100) CoBr ₂ · 6H ₂ O 0.10 9 photo-curable composition PC P1 665 0.18 0.36 0.41 one 8 solution (40 vol.% ethanol and 60 vol.% water) 2 vol.% (Over 100) Co (NO ₃ ) ₂ · 6H ₂ O 0.0034 CoBr ₂ · 6H ₂ O 0.004 10 Acrolat-NS photocurable composition - solution (40 vol.% ethanol and 60 vol.% water) 2 vol.% (Over 100)

Co (NO ₃ ) ₂ · 6H ₂ O 0.0034 CoBr ₂ · 6H ₂ O 0.0024 eleven photo-curable composition PC P1 620 0.15 0.69 0.85 3 9 pyridine 1.15 Co (CH ₃ COO) ₂ · 4H ₂ O 0.014 LiBr 0.012 12 photo-curable composition PC P1 610 0.20 0.60 0.74 2 10 pyridine 1.40 Co (CH ₃ COO) ₂ · 4H ₂ O 0.013 LiCl 0.021 13 photo-curable composition PC P1 636 0.19 0.65 0.75 5 eleven methanol 6.2 vol.% (Over 100) NiCl ₂ · 6H ₂ O 0.02 LiCl 0.33 fourteen photo-curable composition PC P1 375 1.6 11.7 14.8 one 12 methanol 3.3 vol.% (Over 100) NiBr ₂ · 6H ₂ O 0.024 640 0.16 1.13 1.43 LiBr 0.25

fifteen photo-curable composition PC P1 365 2.11 8.22 10.1 one 13 methanol 21 vol.% (Over 100) 670 0.24 0.95 1.17 NiBr ₂ · 3H ₂ O 0.08 1410 0.20 0.76 0.93 four fourteen LiBr 1.70 16 photocured composition Acrolat-13 380 2.19 7.24 8.77 one fifteen methanol 21 vol.% (Over 100) NiBr ₂ · 3H ₂ O 0.08 670 0.40 0.84 0.97 LiBr 1.70 17 photocured composition Acrolat-13 660 0.22 1.01 1.25 one 16 methanol 20 vol.% (Over 100) NiBr ₂ · 3H ₂ O 0.06 LiBr 1.50 eighteen photocurable compositions K3-3, K3-4 660 0.14 0.80 1.0 one 17

methanol 21 vol.% (Over 100) eighteen NiBr ₂ · 3H ₂ O 0.08 1405 0.18 0.53 0.63 four LiBr 1.70 19 Photo curing composition PC P1 370 1.0 6 7.4 5 19 methanol 26.7 vol.% (Over 100) water 1 vol.% (Over 100) 685 0.19 0.9 1.1 NiBr ₂ 0.1 LiBr 4.2 twenty Photo curing composition PC P1 393 0.24 0.84 1.02 1.5 twenty methanol 26.7 vol.% (Over 100) Ni (NO ₃ ) ₂ · 6H ₂ O 0.1 680 0.19 0.67 0.82 LiBr 4.4 Examples to paragraph 3 of the formula 21 Photo curing composition PC P1 - methanol 18 vol.% (Over 100)

water 5 vol.% (Over 100) CoBr ₂ · 6H ₂ O 0.10 picric acid 0.01

Similar examples of the addition of nitrophenols in order to expand the color gamut of thermochromic transitions while maintaining or increasing the light fastness of the material and providing additional protection of the room from UV radiation, in accordance with paragraph 3 of the formula, can be obtained by adding the spectrum of nitrophenol (Fig. 21 (picric acid concentration - 0.01 mol / l, layer thickness - 1 mm)) with spectra of thermochromic layers (examples 1-20) according to paragraphs 1-2 of the formula.

Examples to paragraph 4 of the formula relating to thermochromic layers according to claim 1 of the formula containing metal complexes with charge transfer are 2, 7, 14-20.

The examples to paragraph 5 of the formula can be obtained by combinations of thermochromic layers described in examples 1-129 (to paragraphs 1-12 of the formula) in accordance with Examples No. 2-5 of the manufacture of a thermochromic device. Examples to paragraph 6 of the formula - 2, 3.

Table 3 shows the formulations of the compositions and the optical properties of the material of the layer with constant light transmission.

Table 3 Example No. Components The average concentration of the components, mol / l Layer thickness mm Figure number Examples to paragraph 7 of the formula 22 photo-curable composition PC P1 one 22 NaI (orange) 0.0055 23 photo-curable composition PC P1 one 23 Cu (NO ₃ ) ₂ · 3H ₂ O 0.01 24 UV 11 photocurable composition one 24 Cr (acac) ₃ (pink gray) 4 g / l

25 UV 11 photocurable composition one 25 CuBr (green) 1.3 g / l 26 UV 11 photocurable composition one 26 CuCl (blue) 1 g / l 27 UV 11 photocurable composition one 27 Cu (acac) ₂ (blue) 2.7 g / l 28 UV 11 photocurable composition one 28 Cu (SCN) ₂ (dark blue) 1 g / l 29th photocurable composition K3-3, K3-4 one 29th Co (NO ₃ ) ₂ · 6H ₂ O (pink) 30 g / l thirty photo-curable composition PC P1 2 thirty Co (NO ₃ ) ₂ · 6H ₂ O (red) 0.1 31 photocured composition Acrolat-13 one 31 Co (NO ₃ ) ₂ · 6H ₂ O (raspberry) 25 g / l 32 photo-curable composition PC P1 one 32 CoBr ₃ (green) 0.007 33 photo-curable composition PC P1 2 33 Cr (NO ₃ ) ₃ · 9H ₂ O (dark green) 18 g / l 34 photo-curable composition PC P1 1.5 34 CoBr ₂ · 6H ₂ O (aquamarine) 0.061 35 photocured composition Acrolat-13 one 35 CoBr ₂ · 6H ₂ O (aquamarine) 0.061 36 UV 11 photocurable composition 0.1 36 CoI ₂ · 2H ₂ O (dark green) 0.05 37 photo-curable composition PC P1 1.5 37 Cr (acac) ₃ (gray pink) 0.006 38 UV 11 photocurable composition one 38 Fe (asas) ₃ (orange) 0.01 39 photo-curable composition PC P1 one 39 Ni (NO ₃ ) ₂ · 6H ₂ O (yellow) 30 g / l 40 Acrolat-NS photocurable composition one 40 Cr (acac) ₃ (lilac) 0.02 41 UV 11 photocurable composition one 41 Co (OH) ₂ (blue) 75 g / l LiCl 2 g / l 42 photo-curable composition PC P1 one 42 Co (NO ₃ ) ₂ · 6H ₂ O (bright blue) 0.01 LiCl 0.02 43 photo-curable composition PC P1 2 43 CoBr ₂ (green) 0.007 NaCl 0.0025 44 photo-curable composition PC P1 2 44 CoBr ₂ (green) 0.011

NaCl 0.0025 45 photocurable composition PC P 1 2 45 CoBr ₂ (green) 0.01 NaCl 0.01 46 photo-curable composition PC P1 2 46 CoBr ₂ (green) 0.013 NaCl 0.010 47 photo-curable composition PC P1 one 47 CoBr ₂ · 6H ₂ O (blue) 20 g / l LiBr 16 g / l 48 photo-curable composition PC P1 one 48 Co (NO ₃ ) ₂ · 6H ₂ O (bright blue) 30 g / l LiBr 8 g / l 49 photo-curable composition PC P1 2 49 Co (NO ₃ ) ₂ · 6H ₂ O (bright purple) 30 g / l LiBr 3 g / l fifty photo-curable composition PC P1 - Co (NO ₃ ) ₂ · 6H ₂ O (blue-violet) 0.1 LiBr 0.2 51 photo-curable composition PC P1 one fifty Co (NO ₃ ) ₂ · 6H ₂ O (bright blue) 0.1 LiCI 0.3 52 photo-curable composition PC P1 one - Co (NO ₃ ) ₂ · 6H ₂ O (bright blue) 30 g / l LiBr 30 g / l 53 photo-curable composition PC P1 one - Co (NO ₃ ) ₂ · 6H ₂ O (bright dark lilac) 60 g / l LiBr 30 g / l 54 photo-curable composition PC P1 one 51 Co (NO ₃ ) ₂ · 6H ₂ O (lilac) 30 g / l LiBr 10 g / l 55 photocurable composition K3-3, K3-4 one 52 Co (NO ₃ ) ₂ · 6H ₂ O (lilac) 25 g / l LiBr 3 g / l 56 photocured composition Acrolat-13 one 53 Co (NO ₃ ) ₂ · 6H ₂ O (violet) 25 g / l LiBr 3 g / l 57 photo-curable composition PC P1 one 54 CoBr ₂ (green) 0.003 LiBr 0.013 58 photo-curable composition PC P1 one 55 CoBr ₂ (green) 0.017 LiBr 0.018 59 photo-curable composition PC P1 one 56

CoBr ₂ (green) 0.018 LiBr 0.027 60 photo-curable composition PC P1 one 57 CoBr ₂ (green) 0.013 LiBr 0.230 61 photo-curable composition PC P1 one 58 CoBr ₂ (green) 0.010 LiI 0.012 62 photo-curable composition PC P1 one 59 CoBr ₂ (green) 0.050 LiI 0.012 63 photo-curable composition PC P1 one 60 CoBr ₂ (green) 0.040 LiI 0.080 64 photo-curable composition PC P1 one 61 CoBr ₂ (green) 0.080 LiI 0.087 65 photo-curable composition PC P1 one 62 CoBr ₂ (green) 0.006 LiI 0.740 66 photo-curable composition PC P1 one 63 CoBr ₂ (green) 0.033 LiI 0.740 67 photo-curable composition PC P1 one 64 CoBr ₂ (green) 0.080 LiI 0.760 68 photo-curable composition PC P1 one 65 CoBr ₂ (green) 0.007 LiI 0.260 69 photo-curable composition PC P1 one 66 CoBr ₂ (green) 0.007 LiI 0.014 LiBr 0.010 70 photo-curable composition PC P1 one 67 CoBr ₂ (green) 0.011 LiI 0.008 LiBr 0.039 71 photo-curable composition PC P1 one 68 CoBr ₂ (green) 0.009 LiI 0.011 LiBr 0.072 72 photo-curable composition PC P1 one 69 CoBr ₂ (green) 0.009

LiI 0.078 LiBr 0.012 73 photo-curable composition PC P1 one 70 CoBr ₂ (green) 0.008 LiI 0.082 LiBr 0.023 74 photo-curable composition PC P1 one 71 CoBr ₂ (green) 0.010 LiI 0.071 LiBr 0.045 75 photo-curable composition PC P1 one 72 CoBr ₂ (green) 0.007 LiI 0.750 LiBr 0.024 76 photo-curable composition PC P1 one 73 CoBr ₂ (green) 0.005 LiI 0.760 LiBr 0.072 77 photo-curable composition PC P1 one 74 CoBr ₂ (green) 0.007 LiI 0.260 LiBr 0.340 78 photo-curable composition PC P1 one 75 CoBr ₂ (green) 0.007 LiI 1.210 LiBr 0.340 79 photo-curable composition PC P1 2 76 CrCl ₃ · 10H ₂ O (brown) 19 g / l LiBr 14.6 g / l 80 photocured composition Acrolat-13 one 77 CrCl ₃ · 10H ₂ O (brown) 19 g / l LiBr 14.6 g / l 81 Acrolat-NS photocurable composition one 78 Cr (acac) ₃ (lilac) 0.08 LiBr 0.836 82 Acrolat-NS photocurable composition one 79 Co (NO ₃ ) ₂ · 6H ₂ O (cyan) 0.1 LiBr 0.35 83 Acrolat-NS photocurable composition one 80 CuBr ₂ (green) 0.03 LiBr 0.38

84 Acrolat-NS photocurable composition one 81 CuBr ₂ (green) 0.07 LiBr 1.40 85 photo-curable composition PC P1 2 82 Ni (NO ₃ ) ₂ · 6H ₂ O (yellow) 20 g / l KBr 9 g / l 86 photo-curable composition PC P1 1.5 83 Ni (NO ₃ ) ₂ · 6H ₂ O (salad) 0.30 LiBr 0.23 87 photo-curable composition PC P1 1.5 84 Cr (NO ₃ ) ₂ · 9H ₂ O (dark green) 0.10 LiBr 0.20 88 photo-curable composition PC P1 1.5 85 CrCl ₃ (green) 0.05 LiBr 0.15 89 photo-curable composition PC P1 1.5 86 Cr (acac) ₃ (gray pink) 0.03 LiBr 0.23 90 photo-curable composition PC P1 1.5 87 Cu (NO ₃ ) ₂ · 2H ₂ O (dark green) 0.045 LiBr 0.15 91 photo-curable composition PC P1 2 - K ₂ Cr ₂ O ₇ (pale yellow) 0.01 LiBr 0.23 92 photo-curable composition PC P1 2 - Cr ₂ (SO ₄ ) ₃ (pale yellow) 0.01 LiBr 0.23 93 photo-curable composition PC P1 1.5 t88 Fe (asas) ₃ (orange) 0.01 LiBr 0.1 94 photo-curable composition PC P1 1.5 89 Fe (asas) ₃ (orange) 0.00037 LiBr 0.1 95 photo-curable composition PC P1 1.5 90 picric acid (yellow) 0.001 96 photocurable composition K3-3, K3-4 one 91 picric acid (yellow) 0.34 g / l 97 photocured composition Acrolat-13 one 92 picric acid (yellow) 0.38 g / l 98 UV 11 photocurable composition one 93 picric acid (yellow green) 0.001 99 photo-curable composition PC P1 one 94 methyl orange (yellow) 0.27 g / l

one hundred photo-curable composition PC P1 one 95 methyl red (red) 0.21 g / l 101 photocurable composition K3-3, K3-4 1.5 96 Co (NO ₃ ) ₂ · 6H ₂ O (orange) 0.0070 picric acid 0.00076 102 photocurable composition K3-3, K3-4 1.5 97 Co (NO ₃ ) ₂ · 6H ₂ O (orange) 0.0144 picric acid 0.00076 103 photocured composition Acrolat-13 one 98 Co (NO ₃ ) ₂ · 6H ₂ O (orange) 0.0144 picric acid 0.00076

Similar examples of the addition of nitrophenols and azo dyes in order to expand the color gamut of thermochromic transitions while maintaining or increasing the light fastness of the material and providing additional protection for the room from UV radiation, in accordance with paragraph 7 of the formula, can be obtained by adding the spectra of nitrophenol (Fig. 90-92 ), as well as an azo dye (Fig. 94, 95) with spectra of layers with constant light transmission (examples 22-94, 101-103) according to paragraph 7 of the formula.

Continuation of table 3 Example No. Components The average concentration of the components, mol / l Layer thickness mm Figure number Examples to paragraph 8 of the formula 104 photo-curable composition PC P1 2 99 water (pink) 1 vol.% Co (NO ₃ ) ₂ · 6H ₂ O 0.0076 105 photo-curable composition PC P1 2 one hundred water (lilac) 1 vol.% Co (NO ₃ ) ₂ · 6H ₂ O 0.0055 CoBr ₂ · 6H ₂ O 0.0018 106 photo-curable composition PC P1 2 101 water (blue gray) 1 vol.% Co (NO ₃ ) ₂ · 6H ₂ O 0.0040 CoBr ₂ · 6H ₂ O 0.0033

107 photo-curable composition PC P1 one 102 water 1 vol.% So (asas) ₂ (blue) 0.016 LiBr 0.3 108 photo-curable composition PC P1 2 103 water 1 vol.% Co (SO ₄ ) ₂ · 7H ₂ O (green) 0.01 LiBr 0.01 109 photo-curable composition PC P1 2 104 water 1 vol.% CoBr ₂ · 6H ₂ O (green) 0.007 LiBr 0.014 110 photo-curable composition PC P1 one 105 ethanol 1 vol.% (Over 100) CoCl ₂ · 6H ₂ O (blue) 0.016 111 photo-curable composition PC P1 one 106 ethanol 40 vol.% (Over 100) CoCl ₂ · 6H ₂ O (blue) 0.02 112 photo-curable composition PC P1 one 107 ethanol 1 vol.% (Over 100) CoBr ₂ · 6H ₂ O (lilac) 0.0024 Co (NO ₃ ) ₂ · 6H ₂ O 0.0056 113 photo-curable composition PC P1 2 108 ethanol 1 vol.% (Over 100) CoBr ₂ · 6H ₂ O (blue) 0.0036 Co (NO ₃ ) ₂ · 6H ₂ O 0.0036 114 photocurable composition PC P 1 2 109 ethanol 1 vol.% (Over 100) CoBr ₂ · 6H ₂ O (blue) 0.008 115 photo-curable composition PC P1 one 110 ethanol 2 vol.% (Over 100) CoBr ₂ · 6H ₂ O (Pink) 0.006 Co (NO ₃ ) ₂ · 6H ₂ O 0.0086 116 Acrolat-NS photocurable composition one 111 ethanol 2 vol.% (Over 100) CoBr ₂ · 6H ₂ O (blue) 0.006

Co (NO ₃ ) ₂ · 6H ₂ O 0.0086 117 photo-curable composition PC P1 1.5 112 methanol 10 vol.% (Over 100) Co (NO ₃ ) ₂ · 6H ₂ O (blue) 0.11 LiCl 0.12 118 photo-curable composition PC P1 one 113 methanol 33 vol.% (Over 100) CoBr ₂ · 6H ₂ O (purple-blue) 0.51 119 photo-curable composition PC P1 2 - methanol 10 vol.% (Over 100) cobalt nitrite sodium (pale yellow) 0.3 g / l 120 photo-curable composition PC P1 1.5 t ethanol 25 vol.% (Over 100) NiCl ₂ · 6H ₂ O (salad) 0.06 LiCl 1.9 121 photo-curable composition PC P1 1.5 114 methanol 20 vol.% (Over 100) UO ₂ (NO ₃ ) ₂ (yellow) 0.30 122 photo-curable composition PC P1 one 115 methanol 5 vol.% (Over 100) picric acid (yellow) 0.0001 123 photo-curable composition PC P1 one 116 methanol 10 vol.% (Over 100) methyl orange (yellow) 0.0004 124 photo-curable composition PC P1 one 117 methanol 10 vol.% (Over 100) methyl red (raspberry) 0.2 g / l 125 photocurable composition PC P 1 2 118 acetic acid 1 vol.% (Over 100) Co (NO ₃ ) ₂ · 6H ₂ O (pink) 0.0084 126 photo-curable composition PC P1 2 119 acetic acid 1 vol.% (Over 100) Co (NO ₃ ) ₂ · 6H ₂ O (Lilac) 0.0046 CoBr ₂ · 6H ₂ O 0.0038 127 photo-curable composition PC P1 2 120 acetic acid 1 vol.% (Over 100) Co (NO ₃ ) ₂ · 6H ₂ O (blue) 0.0021 CoBr ₂ · 6H ₂ O 0.0063 128 photo-curable composition PC P1 2 121 acetic acid 1 vol.% (Over 100) CoBr ₂ -6H ₂ O (blue) 0.0084 129 photo-curable composition PC P1 2 122 methanol 3.2 vol.% (Over 100) NiCl ₂ · 6H ₂ O (blue) 0.01 LiCl 0.17

Examples to paragraph 9 of the formula are 22, 23, 25, 29-31, 36, 48-50, 52-56, 82-84, 90, 100, 105, 106, 110-115.

Examples to paragraph 10 of the formula relating to layers with constant light transmission according to claim 7 of the formula containing metal complexes with charge transfer are 22, 23, 25, 27, 36, 43-46, 48-50, 52-56, 61-84 86, 87, 93-98, 101-103, 105, 106, 109, 112-116, 122, 126-128, figures 22, 23, 25, 27, 36, 43-46, 48, 49, 51- 53, 58-81, 83, 84, 88-93, 96-98,100, 101,104, 107-111, 112, 115, 119-121.

Examples to paragraphs 11, 12 of the formula can be obtained using the layers described in examples 1-129 in accordance with Examples No. 2 to 5 of the manufacture of a thermochromic device.

As can be seen from table 2, a thermochromic material made from the presented examples of compositions has a high thermochromic efficiency (D ⁷⁰ / D ²⁰ ), which is understood as the ratio of optical densities at a given wavelength achieved at high (60-85 ° C) and low (20-25 ° С) temperatures, which is explained by the fact that the developed new thermochromic material as an integral component contains water, which is a strong field ligand, which is necessary to optimize the thermodynamic parameters of the reaction of the thermochromic progress in order to achieve high efficiency thermochromic. The use of water is also preferable from the point of view of environmental and fire safety of the production and operation of a thermochromic device.

The production technology of the inventive thermochromic device differs from the prototype production technology in simplicity and low cost due to the combination of all stages of the synthesis of the thermochromic layer into one (mixing of all components (solvents, transition, alkali and alkaline earth metals, polymers and plasticizers)), followed by filling the gap between the substrates and photo damage according to Options No. 1 and No. 2.

The advantage of performing a thermochromic layer in the form of a photocurable composition in the inventive device is the possibility of using standard industrial equipment and standard technology used in the manufacture of glass triplex. In contrast to the thermochromic devices of the prototype, the simplification of the manufacturing process of the thermochromic device developed by us is achieved through the exclusive use of ready-made and readily available reagents, as well as combining all stages of the synthesis into one, which reduces to mixing all components and heating at temperatures of 60-80 ° С for less than 10 minutes, followed by filling the inter-glass space of the triplex with the prepared composition and its subsequent polymerization under UV radiation.

A brief description of the drawings.

The drawings show graphs of the optical density spectra of a layer with variable light absorption (at two temperatures), or with constant light absorption (at 20 ° C). The horizontal axis (abscissa axis) shows wavelengths in nanometers λ (nm), and the vertical axis (ordinate axis) shows the optical density values D = log (100 / T), where T is the transmission of a layer with a variable or constant light absorption.

The spectra are reduced to an absorbing layer thickness of 1 mm. In all the figures, spectra with lower optical densities (at the wavelength indicated in Table 2) correspond to a temperature of 20 ° C, and spectra with large optical densities correspond to a temperature of 60 ° C, with the exception of Figure 2, for which, on the contrary, the spectrum at lower optical densities, a temperature of 60 ° C corresponds, and a spectrum with large optical densities corresponds to a temperature of 20 ° C.

Figure 1 presents the absorption spectra of the thermochromic material described in example 1 (Table. 2).

Figure 2 presents the absorption spectra of the thermochromic material described in example 2 (Table. 2).

Figure 3 presents the absorption spectra of the thermochromic material described in example 3 (Table. 2).

Figure 4 presents the absorption spectra of the thermochromic material described in example 4 (Table. 2).

Figure 5 presents the absorption spectra of the thermochromic material described in example 5 (Table. 2).

Figure 6 presents the absorption spectra of the thermochromic material described in example 6 (Table. 2).

Figure 7 presents the absorption spectra of the thermochromic material described in example 7 (Table. 2).

On Fig presents the absorption spectra of the thermochromic material described in example 9 (Table. 2).

Figure 9 presents the absorption spectra of the thermochromic material described in example 11 (Table. 2).

Figure 10 presents the absorption spectra of the thermochromic material described in example 12 (Table. 2).

Figure 11 presents the absorption spectra of the thermochromic material described in example 13 (Table. 2).

On Fig presents the absorption spectra of the thermochromic material described in example 14 (Table. 2).

On Fig presents absorption spectra in the UV and visible ranges of the thermochromic material described in example 15 (Table. 2). In the upper part of the figure, the curves of the absorption spectra are multiplied by a factor of 8.

On Fig presents absorption spectra in the near infrared (IR) range of the thermochromic material described in example 15 (Table. 2).

On Fig presents the absorption spectra of the thermochromic material described in example 16 (Table. 2). In the upper part of the figure, the absorption spectrum curves are multiplied by a factor of 10.

On Fig presents the absorption spectra of the thermochromic material described in example 17 (Table. 2).

On Fig presents absorption spectra in the UV and visible ranges of the thermochromic material described in example 18 (Table. 2).

On Fig presents the absorption spectra in the near infrared (IR) range of the thermochromic material described in example 18 (Table. 2).

On Fig presents the absorption spectra of the thermochromic material described in example 19 (Table. 2). In the upper part of the figure, the absorption spectrum curves are multiplied by a factor of 10.

On Fig presents the absorption spectra of the thermochromic material described in example 20 (Table. 2).

On Fig presents the absorption spectrum of a solution of picric acid (Table. 2). The spectrum is reduced to a picric acid concentration of 0.01 mol / L and an absorbing layer thickness of 1 mm. The spectrum was measured at 20 ° C.

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 22 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 23 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 24 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 25 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 26 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 27 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 28 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 29 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 30 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 31 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 32 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 33 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 34 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 35 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 36 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 37 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 38 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 39 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 40 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 41 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 42 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 43 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 44 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 45 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 46 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 47 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 48 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 49 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 51 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 54 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 55 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 56 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 57 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 58 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 59 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 60 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 61 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 62 (Table. 3).

On Fig shows the absorption spectra of the polymer layer with constant light absorption described in example 63 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 64 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 65 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 66 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 67 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 68 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 69 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 70 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 71 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 72 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 73 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 74 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 75 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 76 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 77 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 78 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 79 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 80 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 81 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 82 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 83 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 84 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 85 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 86 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 87 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 88 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 89 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 90 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 93 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 94 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 95 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 96 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 97 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 98 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 99 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 100 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 101 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 102 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 103 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 104 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 105 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 106 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 107 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 108 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 109 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 110 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 111 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 112 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 113 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 114 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 115 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 116 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 117 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 118 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 121 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 122 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 123 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 124 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 125 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 126 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 127 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 128 (Table. 3).

On Fig presents the absorption spectra of the polymer layer with constant light absorption described in example 129 (Table. 3).

The manufacture of a thermochromic device is as follows:

Example No. 1. The manufacture of a thermochromic device in accordance with paragraphs 1-12 of the formula.

All components of the thermochromic composition in initial quantities (the formulation is shown in Table 2 (examples 1-21)) are simultaneously mixed. Compositions for obtaining a layer with constant light transmission based on a photocurable composition are prepared similarly (Table 3 (examples 22-129). As a photocurable composition, a composition based on mixtures of monomers and oligomers of unsaturated acid derivatives, for example, UV-11, is used. Then, the resulting mixture is heated at 60-80 ° C under reflux and with continuous stirring for less than 10 minutes until the components are completely dissolved (until the precipitate disappears) The resulting composition is cooled to a temperature corresponding to an acceptable viscosity they are filled into prefabricated single-chamber or multi-chamber double-glazed windows, the chambers of which are formed by sheets of glass or sheets of polymer, preferably with a transparency of at least 90-92%, and which can be hardened by clamps for the thickness of the gap, and sealed. The concentrations of the components and the thickness of the layers are selected based on the need to achieve the desired color gamut and the degree of darkening when triggered. Photo curing is carried out according to standard technology for 15-40 minutes before the curing of the layer.

In order to obtain an additional color gamut with respect to the given examples (Tables 2 and 3), the thermochromic layers can be combined into a multilayer triplex containing polymer layers with constant or variable light absorption based on a photo-, thermo- or chemically cured composition based on mixtures of monomers and oligomers of unsaturated acid derivatives (according to paragraphs 1-12 of the formula), or made of a water-soluble vinyl-based polymer containing at least one plasticizer and transition metal complexes, including Radical components of a solvent or plasticizer and / or halides, or a mixture thereof.

On the basis of the described single-layer or multi-layer thermochromic triplex, a window pane is assembled according to well-known technology, containing a gap filled with air or inert gas, and also containing a low emissivity coating (Low E) applied to protect it from damage on one of the inner surfaces of the glass pane. This design provides automatic control of the illumination of the room, as well as an energy-saving effect when using the claimed thermochromic device as a window double-glazed window or structural glazing of walls.

The energy-saving effect is achieved due to the fact that in the cold season (winter) the thermochromic layer, optimized for “operation” in the temperature range above the “comfortable” (20-25 ° C), remains highly transmittance. Therefore, sunlight and heat freely penetrate through the window into the room, or when using the structure as a "structural" glazing (instead of plaster), they fall on the wall of the building and heat it. Since the heated wall and room emit heat in the far infrared range (10 μm), the low-emission coating does not let it out, providing energy saving. In the warm season (summer) when using this design as a window glazing, the thermochromic layer “works”, its transmission of light and heat decreases. In this case, automatic control of the illumination in the room is achieved, and all the solar energy absorbed by the thermochromic layer leads to its heating and is emitted in the far infrared range and, therefore, is reflected outward by a low-emission coating applied to one of the surfaces of the structure internal to the room. When using this design as a "structural" glazing in the summer, all solar energy absorbed by the thermochromic layer is reflected outside in the far infrared range, without creating a glare effect, in contrast to the well-known constant-reflection sunscreens.

Example No. 2. The manufacture of a thermochromic device (claims 5, 11, 12 of the formula).

A single-layer or multi-layer thermochromic triplex is prepared according to Example No. 1 for the manufacture of a thermochromic device. At the same time, at least one of the layers is composed (made) in the form of a mosaic picture (or stained glass window) of pieces of a layer of different thermochromic efficiency and / or color, which provides a heterogeneous color of the thermochromic device and a change in the plot of the stained glass window depending on the illumination and weather conditions.

Example No. 3. The manufacture of a thermochromic device (Clause 5, Clause 11, Clause 12 of the formula).

Stained-glass windows, signatures, etc. can be created by applying thermochromic inscriptions or can be created by sequential photo-curing of design elements through appropriate stencils, replacing a non-cured composition with a new one, for example, a different color, also photo-cured through (or without) an appropriate stencil, etc. .

Example No. 4. The manufacture of a thermochromic device (claims 5, 11, 12 of the formula).

A single-layer or multi-layer thermochromic double-glazed unit is prepared according to Example No. 1 for the manufacture of a thermochromic device. At the same time, at least one of the substrates of the double-glazed unit (triplex) contains a transparent conductive coating providing heating of the thermochromic layer or thermochromic layers that is uneven in area, leading to a non-uniform in color coloring of the thermochromic device, which changes or does not change over time.

Industrial applicability.

The presented examples of manufacturing the claimed product show that the technological process for manufacturing thermochromic devices is simplified in comparison with the known solutions in this field, and also show the special availability of creating finished products, including glass and polymer surfaces (substrates) of complex configuration, which is especially important in the manufacture of glass or polymer caps, lights, etc. In the proposed variants of the new invention, as a rule, non-toxic or low-toxic substances are used. In particular, a reduction in the toxicity of production and operation is achieved, the technological process is simplified by reducing the number of stages of synthesis and manufacture (lamination) of thermochromic layers. The most profitable way of using the energy-saving light-regulating thermochromic glazing (ESTO) developed by us for energy saving purposes is its use as an external glazing as a part of a double-glazed window coated with Low E.

ESTO compositions are optimized in such a way that, at temperatures lower than 20 ° C (for example, in winter), the maximum influx of light and heat into the room is achieved, helping to reduce heating costs. In summer, at temperatures higher than 20 ° C, on the contrary, ESTO will reduce the flow of light and heat into the room, thereby reducing air-conditioning costs and eliminating excessive lighting.

In general, the advantages of ESTO are: automatic autonomous mode for regulating solar radiation without energy consumption and regulation systems, power sources; lack of light reflection in the visible range (no glare effect); relative simplicity of production technology, low cost, non-toxicity and availability of raw materials.

The durability of ESTO is more than 10 years, and its cost is much lower in comparison with analogues that are closest in properties.

Claims (12)

1. Light control thermochromic device, comprising at least two light transmitting substrates and at least one thermochromic layer, reversibly changing the transmission of light and heat flux when its temperature changes in the visible and / or near infrared spectral regions, characterized in that the thermochromic layer is made of a thermochromic material, which is a photocurable composition based on mixtures of monomers and oligomers of unsaturated acid derivatives, containing transition metal complexes, halides Christmas tree and / or alkaline earth metals. 2. The light control thermochromic device according to claim 1, characterized in that the thermochromic material further comprises at least one solvent or plasticizer. 3. The light control thermochromic device according to claim 1 or 2, characterized in that the thermochromic material further comprises nitrophenols. 4. The light control thermochromic device according to claim 1 or 2, characterized in that the thermochromic material contains metal complexes with charge transfer. 5. The light control thermochromic device according to claim 1 or 2, characterized in that it contains at least one layer of thermochromic material with a non-uniform color area. 6. The light control thermochromic device according to claim 1 or 2, characterized in that the thermochromic material is a non-toxic or low toxic composition. 7. The light control thermochromic device according to claim 1, characterized in that it further comprises at least one polymer layer with constant light absorption, which is a photocurable composition based on mixtures of unsaturated acid monomers and oligomers containing transition metal complexes, alkali halides and / or alkaline earth metals, or nitrophenols, or nitrophenols, or azo dyes, or combinations thereof. 8. The light control thermochromic device according to claim 7, characterized in that at least one polymer layer with constant light absorption contains at least one solvent or plasticizer. 9. The light control thermochromic device according to claim 7, characterized in that it contains at least one polymer layer with constant light absorption, which is a non-toxic or low toxic composition. 10. The light control thermochromic device according to claim 7, characterized in that at least one polymer layer with constant light absorption contains metal complexes with charge transfer. 11. The light control thermochromic device according to claim 7, characterized in that it contains at least one polymer layer with constant light absorption with a non-uniform color area. 12. The light control thermochromic device according to claim 1, characterized in that it includes at least one layer between the thermochromic layer and the substrate and / or layers with constant or variable light absorption, made of photo, or thermo, or chemically cured compositions based on mixtures of monomers and oligomers of unsaturated acid derivatives, or a layer made of a water-soluble vinyl-based polymer containing at least one plasticizer and transition metal complexes including you solvent and / or plasticizer or halides, or mixtures thereof.

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