Nanosized absorbers of ir-radiation in moulded articles

FIELD: process engineering.

SUBSTANCE: invention relates to sandwiched moulded articles to be used as boards, films for hothouses or as window elements. Moulded article 1 consists of outer layer 2 and inner layer 3 located below outer layer 1 and made of thermoplastic polymer. Said outer layer 2 is made of at least one thermoplastic polymer and at least one nano-sized absorber of IR-radiation 8 selected from tin oxide alloyed with antimony or indium or rare earth metals borides in the form of nanoparticles. Additional additives to mould article 1 can be UV-absorbers, organic IR-radiation absorbers not in the form of particles, stabilisers, antioxidants, dyes, inorganic salts, pearl pigments, radiation reflectors in IR-spectrum near band, anti-sweat means or fillers. Besides, this invention discloses the process of making said article 1 by coextrusion of outer layer 2 and inner layer 3.

EFFECT: efficient protection of surfaces of, for example, buildings, automobiles or hothouses, efficient control over internal heat.

12 cl, 1 dwg

 

The present invention relates to a multilayer molded products that contain nanoscale absorber of infrared radiation. In addition, the present invention relates to a method of obtaining the above multilayer molded products. The object of the present invention is also the use of these multi-layer molded products, primarily in the field of control of heat, as a film for greenhouses or as part of Windows. Another object of the present invention are the objects that contain the specified multi-layer molded product.

Other embodiments of the present invention described in the claims, the description and the examples. It should be emphasized that in addition to combining the above and following description of the distinctive features of the invention are also possible other combinations of its distinguishing features. While the preferred and especially preferred are embodiments of the present invention, providing a combination of its preferred or particularly preferred distinctive features.

In U.S. patent US 2008/0075936 A1 describes the film, intended for the control of solar radiation, and the method of making these films. Films contain a single layer or multilayer heart is inu, at least one layer which contains an oriented thermoplastic polymeric material. In the oriented thermoplastic polymer dispersed absorbing infrared radiation nanoparticles.

In the European patent EP 1865027 A1 describes some selected polycarbonates, which contain finely dispersed borides of metals. Products of the respective polymer compositions transmit light and thermal radiation shield. These products can be used as materials for Windows, roofing materials or films in agriculture.

In U.S. patent US 2004/0028920 A1 describes uterine mixture, which contains a component for shielding of thermal radiation and a thermoplastic polymer. As a component for shielding heat radiation use hexaboride in an amount of from 0.01 to 20 wt%. in terms of thermoplastic polymer. According to the document using the specified masterbatches is possible to obtain molded products with high transmission of visible light and an increased shielding of thermal radiation.

In the European patent EP 1529632 A1 describes a multilayer film and method of their manufacture. These multilayer films contain a core that includes a layer of thermoplastic polymer and absorber of infrared radiation. The core is provided with a top layer of co is containing a series of other additives thermoplastic polymer or the top and bottom layers containing other additives thermoplastic polymer. The authors cited publications stress the need for dispersion absorber of infrared radiation in the core layer of the multilayer film, because according to their dispersion absorber of infrared radiation in the upper layer leads to a strong plastic material (see paragraphs [0075]-[0082] EP 1529632 A1).

Excessive absorption of thermal radiation, especially solar thermal radiation, for example, surfaces of buildings, vehicles, warehouses and greenhouses often leads to a significant increase in the internal temperature, in particular with regard to regions with high intensity of solar radiation. This strengthening of temperature effects, for example, in the internal space of buildings, respectively detainees often compensate by technical use of energy-intensive air conditioning systems. The temperature in the cabin of a parked car in the summer can usually be achieved, for example, 60°C.

However, often there are situations, in accordance with which the shielding of thermal radiation should not be accompanied by filtering other parts of the solar spectrum. Especially in the case of shielding of thermal radiation Windows or films for greenhouses along with effective protection from exposure to thermal radiation is of strive to provide high transmission of visible rays of the spectrum. It is in such applications thermal insulation materials should have only a slight haze.

With regard to the foregoing, the present invention was based on the task to provide a multilayer molded product for shielding of thermal radiation that occur when exposed to light, especially sunlight, for example, on the surface of buildings, vehicles or houses.

Another objective of the present invention consisted in the fact that these products simultaneously with an effective shielding of thermal radiation has a high permeability to visible light.

The above and other objectives of the present invention are addressed by a multilayer molded articles (1), including:

a) the outer layer (2)containing

i. thermoplastic polymer and

ii. at least one nanoscale absorber of infrared radiation (8),

and

b) below the outer layer (2) inner layer (3)containing

i. thermoplastic polymer.

As the outer layer (2)and inner layer (3), obviously, can also contain a mixture of thermoplastic polymers. The above definition of "at least one" means that the outer layer (2) may contain one or more nanoscale absorbers of infrared radiation.

In accordance with the present invention is under infrared radiation (short-wave infrared radiation) mean electromagnetic waves in the spectral range between visible light and the long wavelength part of the microwave radiation. Thus, we are talking about wavelengths in the approximate range of from 760 nm to 1 mm Under short-wave infrared radiation (760 nm and above) often imply near-infrared region, whereas the approximate wavelength range from 5 to 25 μm corresponds to the middle-infrared region. Extremely long-wave IR radiation (range from 25 μm to 1 mm) corresponds to the long infrared region. Thermal radiation is infrared radiation.

Under ultraviolet (UV) radiation in accordance with the present invention involve an electromagnetic wave with an approximate spectral range of wavelengths from 200 to 400 nm.

Under visible light in accordance with the present invention involve an electromagnetic wave with an approximate spectral range of wavelengths from 400 to 760 nm.

In the General case the material is called transparent if relatively well visible behind it objects to such materials include, for example, window glass). Transparency in accordance with the present invention mean optical permeability of a transparent material, provided the predominant absence of light scattering in the visible spectral range.

To determine the Mat can be used, for example, the measuring device firms Bykgardner. He before the hat is a tube, which are placed before the Orb of Ulbricht. Haze can be measured according to ASTM D1003-7, for example as described in European patent EP 1529632 A1.

Substances that absorb electromagnetic radiation in the wavelength range of infrared radiation, in accordance with the present invention is also referred to as absorbers of infrared radiation. Absorbers of infrared radiation is preferably characterized by absorption in the wavelength range from 760 to 2000 nm, particularly preferably from 780 to 1500 nm, and the absorption coefficient of infrared radiation, comprising at least 100 I/(cm·mol). The absorption of infrared radiation is preferably more than 1000 I/(cm·mol), particularly preferably more than 104I/(cm·mol).

In accordance with the present invention the determination of the particle nanoscale" means that the maximum average diameter less than 500 nm, preferably from 10 to 300 nm, especially 20 to 200 nm. Nanoscale particles (nanoparticles) can contain both inorganic and organic components, and mixed organic/inorganic components. The size of the nanoparticles, respectively, the distribution of nanoparticles in size, you can define methods known in the art, for example, by dynamic light scattering or electron microscopy, for example, by the method of transmission of the electronic the electronic microscopy.

The outer layer (2) is located on the side or surface of the multilayer molded product (1), which is converted to light, especially sunlight, or heat radiation (9), while the inner layer (3) is located on the side of the multilayer molded articles, opposite the incident light, respectively thermal radiation.

The outer layer (2) multi-layer molded product (1) is in the immediate vicinity of the inner layer (3). The definition of "close proximity" means that the inner layer (3) is separated from the outer layer (2) only one or more other layers or free spaces, and the total thickness of other layers not exceeding 50 mm In a preferred embodiment of the proposed invention in a multilayer molded product (1) outer layer (2) is in direct contact with the inner layer (3).

As shown in figure 1, if necessary, other available layers proposed in the invention is a multilayer molded product (1), for example, layers (5), (6) and/or (7), in the General case are below the inner layer (3) on the opposite from the incident light side of the multilayer molded product. However, there is also a variant of execution of the multi-layer molded product, according to which between the outer is at the forefront (2) and inner layer (3) is a minor part of the other layers (4), however, the outer layer (2) is always in the immediate vicinity of the inner layer (3). Other layers may also have cavities that are primarily filled with air.

In a preferred embodiment, a multilayer molded product (1) it consists of two layers, namely the outer layer (2) and inner layer (3).

In another embodiment, a multilayer molded product (1) it consists of three layers, namely the outer layer (2), the inner layer (3) and another layer (5)located below the inner layer (3) and preferably having the same outer layer (2) composition.

The thickness of the outer layer (2), the inner layer (3) and optionally available on other layers, for example, depending on the scope of application of the corresponding layered products can be varied within a wide range. The thickness of these layers often is from 0.01 to 50 mm, preferably from 0.75 to 30 mm, particularly preferably from 0.85 to 25 mm and especially from 1 mm to 20 mm

In a preferred embodiment, a multilayer molded product (1) thickness of the outer layer (2) is from 0.01 to 1 mm, preferably from 0.02 to 0.5 mm, particularly preferably from 0.03 to 0.1 mm and especially from 0.03 to 0.05 mm

Suitable thermoplastic polymers include oligomers, polymers, ionomers, dendrimers, with the polymers, for example, block copolymers, graft copolymers, zvezdoobraznye block copolymers, statistical block copolymers or corresponding mixtures.

Srednevekovaja molecular mass (Mw) thermoplastic polymers in General is in the range from 3000 to 1000000 g/mol. According to the invention Mwthermoplastic polymers is preferably from 10000 to 100000 g/mol, particularly preferably from 20,000 to 50,000 g/mol, especially from 25,000 to 35,000 g/mol.

As thermoplastic polymer in the outer layer (2) tend to use polymers which have high optical permeability, however, you can also use opaque polymers. Preferred are polymers which have high permeability in the visible spectral range. In the General case as thermoplastic polymers of the outer layer (2) experts select polymers that have high weather resistance, low water absorption, high chemical resistance and high mechanical stability (in particular, high resistance to scratching). Thermoplastic polymers of the outer layer (2) preferably have good compatibility in the melt of thermoplastic polymer of the inner layer (3).

In a preferred embodiment of the proposed invention in mogolo the aqueous molded product (1) as thermoplastic polymer of the outer layer (2) use Polyacetal, polyacrylate, polyalkylacrylate, polycarbonate, polystyrene, complex, polyester, polyamide, polyamidimide, polyarylate, Polyarylamide, polyethersulfone, polyphenylsulfide, polyvinyl chloride, polysulfone, polyimide, polyetherimide, polytetrafluoroethylene, polyetherketone, peek, polyetherketoneketone, polybenzoxazole, polyoxadiazole, polysensitization, polybenzamidazole, propertydefinition, polypyromellitimide, polynoxylin, polybenzimidazole, polyoxides, polioksidony, politization, policiesin, polypyridine, polifeprosan, polypyridine, polypeptides, politiacal, polyerata, polypyrrolidone, polycarbon, Polyoxymethylene, polybutylene, polydimensional, politely, Polyacetal, polyanhydride, a simple polymer of vinyl ether, polyvinylether, polyvinyl alcohol polyvinylacetal, polivinilhlorid, polyvinylacetal, a polymer of vinyl ester, polysulfone, polysulphide, polythioether, polysulfone, polyurethane, polyphosphazene, polysilazane, polyimide, polymethylmethacrylate, polyethylene terephthalate, polyolefin, such as polyethylene or polypropylene, a copolymer based on Acrylonitrile, styrene, acrylates, polyvinyl butyral or a mixture of these polymers. In this case, the mixtures include the corresponding polymers.

As thermopla the quadratic polymers of the outer layer (2) preferably use polycarbonates, polyesters, the compounds of the complex of polyester and polycarbonate, copolymers based on polycarbonate and complex polyester, polycarbonate-polysiloxane copolymers, polymethylmethacrylate, polyethylene or polyethylene terephthalate.

Preferred thermoplastic polymers of the outer layer (2) are primarily polycarbonates, polyethylene or polymethylmethacrylate.

As thermoplastic polymer of the inner layer (3) generally use polymers which have high optical permeability, however, within considered in case you can also use opaque polymers. Preferred are polymers which have high permeability in the visible region of the spectrum. In the General case as thermoplastic polymers of the outer layer (3) experts select polymers that have high weather resistance, low water absorption, and high chemical and mechanical stability. Thermoplastic polymers of the outer layer (3) preferably have good compatibility in the melt of thermoplastic polymer of the inner layer (2).

In a preferred embodiment of the proposed invention in a multilayer molded product (1) as thermoplastic polymer of the inner layer (3) use Polyacetal, polyacrylate, p is dialkylamines, polycarbonate, polystyrene, complex, polyester, polyamide, polyamidimide, polyarylate, Polyarylamide, polyethersulfone, polyphenylsulfide, polyvinyl chloride, polysulfone, polyimide, polyetherimide, polytetrafluoroethylene, polyetherketone, peek, polyetherketoneketone, polybenzoxazole, polyoxadiazole, polysensitization, polybenzamidazole, propertydefinition, polypyromellitimide, polynoxylin, polybenzimidazole, polyoxides, polioksidony, politization, policiesin, polypyridine, polifeprosan, polypyridine, polypeptides, politiacal, polyerata, polypyrrolidone, polycarbon, Polyoxymethylene, polybutylene, polydimensional, politely, Polyacetal, polyanhydride, a simple polymer of vinyl ether, polyvinylether, polyvinyl alcohol, polyvinylacetal, polivinilhlorid polyvinylacetal, a polymer of vinyl ester, polysulfone, polysulphide, polythioether, polysulfone, polyurethane, polyphosphazene, polysilazane, polyimide, polymethylmethacrylate, polyethylene terephthalate, polyolefin, such as polyethylene or polypropylene, a copolymer based on Acrylonitrile, styrene, acrylates, polyvinyl butyral or a mixture of these polymers. In this case, the mixtures include the corresponding polymers.

As thermoplastic polymer inner the Loya (3) preferably use polycarbonates, polyesters, the compounds of the complex of polyester and polycarbonate, copolymers based on polycarbonate and complex polyester, polycarbosilane copolymers, polymethylmethacrylate, polyethylene or polyethylene terephthalate.

Preferred thermoplastic polymers of the inner layer (3) are primarily polycarbonates, polyethylene or polymethylmethacrylate.

In another embodiment of the proposed invention is a multilayer molded product (1) on the side of the outer layer (2), opposite to the inner layer (3), can be applied resistant to scratching, primarily transparent coating.

If necessary, other available layers proposed in the invention is a multilayer molded products also typically contain one of the above thermoplastic polymers. Polymers, which are optionally used in other layers, preferably selected from the above preferred thermoplastic polymers of the outer or inner layer. Polymers, which are optionally used in other layers, particularly preferably similar thermoplastic polymers of the outer or inner layer.

In another preferred embodiment of the proposed invention in a multilayer molded product (1) as a thermoplastic the polymers of the outer layer (2) and inner layer (3) use the same polymers, which are Polyacetal, polyacrylate, polyalkylacrylate, polycarbonate, polystyrene, complex, polyester, polyamide, polyamidimide, polyarylate, Polyarylamide, polyethersulfone, polyphenylsulfide, polyvinyl chloride, polysulfone, polyimide, polyetherimide, polytetrafluoroethylene, polyetherketone, peek, polyetherketoneketone, polybenzoxazole, polyoxadiazole, polysensitization, polybenzamidazole, propertydefinition, polypyromellitimide, polynoxylin, polybenzimidazole, polyoxides, polioksidony, politization, policiesin, polypyridine, polifeprosan, polypyridine, polypeptides, politiacal, polyerata, polypyrrolidone, polycarbon, Polyoxymethylene, polybutylene, polydimensional, politely, Polyacetal, polyanhydride, a simple polymer of vinyl ether, polyvinylether, polyvinyl alcohol, polyvinylacetal, polivinilhlorid, polyvinylacetal, a polymer of vinyl ester, polysulfone, polysulphide, polythioether, polysulfone, polysulfone, polyurethane, polyphosphazene, polysilazane, polyimide, polymethylmethacrylate, polyethylene terephthalate, a polyolefin, a copolymer based on Acrylonitrile, styrene and acrylates, polyamide, polyethersulfone, polyvinyl chloride, polysulfone, or a mixture of the above polymers. In this case, the mixtures include with testwuide polymers.

In the case of using the same thermoplastic polymer in the outer layer (2) and inner layer (3) such a polymer is preferably polycarbonate, polyethylene or polymethylmethacrylate. While the preferred polymer is polycarbonate and polyethylene.

In a preferred embodiment of the proposed invention in a multilayer molded product (1) use finely dispersed nanoscale absorbers of infrared radiation (8). The definition of "finely dispersed" means that the absorbers of infrared radiation (8) are in the outer layer (2) in the form of a homogeneous dispersion. Homogeneity of variance nanoscale absorbers of infrared radiation due to the fact that they mostly do not form aggregates or particles, which size is more than 500 nm. The corresponding dispersion preferably do not contain aggregates or particles larger than 300 nm, especially preferably 200 nm. The average distance between otdeleniye nanoparticles primarily is at least 200 nm. In one embodiment, the execution of more than 90% of the nanoparticles have an average size of constituting less than 200 nm. In another embodiment, more than 95% of the nanoparticles have an average size of constituting less than 200 nm. In another embodiment, more than 99% of the nanoparticles have a CPE is it size, components of less than 200 nm.

In another preferred embodiment of the proposed invention in a multilayer molded product (1) in the outer layer (2) there are no particles or aggregates, the average size of which exceeds 500 nm. Preferred is the absence in the outer layer (2) particles or aggregates whose diameter is more than 300 nm.

Nanoscale absorbers of infrared radiation is preferably used in the form of particles. The corresponding particles may have any shape. For example, they can be balls, rods or plates or may have an irregular configuration. In addition, you can use nanoscale absorbers of infrared radiation with a bimodal or multimodal distribution of particle sizes.

As absorbers of infrared radiation is preferably used nanoscale tin oxide doped with antimony (ATO) or indium (ITO), or nanoscale bored metal formula MBx(x represents the coefficient from 1 to 6), especially bored rare earth metal. Especially preferred absorbers of infrared radiation are nanoparticles of rare earth borides of metals. Even more preferred are the metal hexaboride formula MB6in which M means, above all, lanthanum (La), praseodymium (Pr), neodymium (Nd), cerium (Ce), terbium (Tb), dysprosium (Dy), Gol is s (Ho), yttrium (Y), samarium (Sm), europium (Eu), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), strontium (Sr) or calcium (Ca). The preferred absorbers of infrared radiation are also metals diborides formula MB2in which M means, above all, titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V), tantalum (Ta), chromium (Cr) or molybdenum (Mo). Other suitable borides of metals are Mo2B5, MoB and W2B5. The most preferred absorber of infrared radiation is nanoscaling the lanthanum hexaboride (LaB6). Suitable absorbers of infrared radiation, obviously, are also mixtures of the above nanoscale substances. Nanoscaling the lanthanum hexaboride (LaB6) is a commercially available product that can be obtained are also described in international application WO 2006/134141 or WO 2007/107407 method.

The number of the absorber of infrared radiation can be varied within wide limits, as defined, for example, the area exposed to the heat radiation surface of the outer layer (2). In addition, the number of the absorber of infrared radiation in the General case depends on the thickness of the outer layer (2). Crucial to the effective operation of the absorber of infrared radiation, as a rule, has the condition, according to which with the passage of thermal radiation through the outer layer is (2) it meets in its path absorber of infrared radiation in the quantity sufficient to absorb this thermal radiation.

The number nanoscaling absorber of infrared radiation in the terms contained in the outer layer (2) thermoplastic polymer is up to 2% of the mass. Quantity of absorber of infrared radiation is preferably in the range from 0.001 to 1 wt. -%, particularly preferably from 0.01 to 0.8 wt%. and especially from 0.01 to 0.5% of the mass.

Absorbed proposed in the invention is a multilayer molded article (1) of the infrared radiation, which affects the surface of this product depends on the scope of the latter. For example, a multilayer molded product absorbs more than 5% of affecting its surface IR radiation. Proposed in the invention is a multilayer molded product (1) is preferably absorbs more than 20%, especially preferably more than 50%, especially more than 90% of affecting its surface IR radiation.

In another preferred embodiment of the proposed invention in a multilayer molded product (1) outer layer (2) contains only a small amount of zirconium dioxide (ZrO2). The content of ZrO2in terms of the outer layer (2) is preferably less than 0.2 wt. -%, especially preferably of 0.15% of the mass.

In another preferred embodiment of the proposed invention is logolounge molded product (1) outer layer (2) preferably contains from 0.001 to 1 wt. -%, particularly preferably from 0.01 to 0.8 wt. -%, first of all, from 0.01 to 0.5% of the mass. bored lanthanum (LaB6and only a small amount of ZrO2. The number of ZrO2in terms of cumulative number of ZrO2and LaB6preferably less than 50 wt. -%, especially preferably less than 40% of the mass.

In another embodiment of the proposed invention is a multilayer molded product (1) in the outer layer (2) and/or in the inner layer (3) use of additional additives. As additional additives preferably used absorbers of ultraviolet radiation (UV absorbers), organic absorbers of infrared radiation is not in the form of particles, stabilizers, antioxidants, dyes, inorganic salts, pearlescent pigments, substances that reflects radiation in the near IR region of the spectrum, anti-fogging or fillers. Additionally, use of organic absorbers of infrared radiation are not nanoscale particles, and are substances, molecular soluble in thermoplastic matrix polymer.

In a preferred embodiment of the proposed invention in a multilayer molded product (1) in the outer layer (2) in addition use the stabilizers to compensate for the effect on thermoplastic polymer temperature is, due to the absorption of thermal radiation in the case of the typical aspects of from 10 to 30°C. Another advantage of the additional use of stabilizers is the possibility of stabilizing a thermoplastic polymer outer layer (2) in the course of its processing, for example, in the melt. Specified the advantage, obviously, can also be used in the case of thermoplastic polymer of the inner layer (3). Thus, the cumulative result of additional use of stabilizer is the extension of the lifetime of multi-layer molded product.

Suitable additional stabilizers are, for example, phosphites, phosphonites, phosphines, steric employed amines, hydroxylamine, phenols, modified acryloyl phenols, means the destruction of peroxides, derivatives of benzophenone or mixtures of these substances. Suitable stabilizers are often commercially available products, for example, firms Ciba and Dover under the trade names Irgaphos® 168, Doverphos® S-9228 and Ultranox® 641. In addition, to improve thermal stability in addition to the stabilizers can also be used for joint stabilizers (co-stabilizers).

The preferred stabilizers are the phosphites or steric employed amines. Especially preferred Stabi what isatori are sterically difficult amines, manufactured by Ciba under the trade name Chimassorb®, first of all Chimasorb® 119 FL, 2020 and 940, or Tinuvin®, Tinuvin features® 111, 123, 492, 494, 622, 765, 770, 783, 791 and C 353. Particularly preferred stabilizers are sterically difficult amines, manufactured by BASF SE under the trade name Uvinul®, first of all Uvinul® 4050 H (registration number in Chemical Abstracts - CAS Nr. 124172-53-8), Uvinul® 4077 Y (CAS Nr. 52829-07-9) or Uvinul® 5050 H (CAS Nr. 152261-33-1).

In General, the stabilizers are used in amounts of from 0.001 to 3 wt. -%, preferably from 0.002 to 2% wt., particularly preferably from 0.003 to 1% wt., first of all, 0.005 to 0.5 wt%. in terms of the outer layer (2), respectively, the inner layer (3). In the case of co-stabilizers their number ranges from 0.001 to 2 wt%. in terms of the outer layer (2), respectively, the inner layer (3).

In a particularly preferred embodiment, a multilayer molded product (1) in the outer layer (2) further using a UV-absorber, which can further extend the life of a multilayer molded product.

UV absorbers absorb ultraviolet rays with wavelengths shorter than 400 nm, especially with a wavelength in the range from 200 to 400 nm. UV absorbers, for example, capable of absorbing ultraviolet radiation in the range of UV-a (320 to 400 nm), UV-b (290 to 319 nm) and/or UV-C (200 to 289 nm). The f-absorbers preferably absorb ultraviolet radiation in the range of UV-a and/or UV-C. Even more preferably UV absorbers absorb ultraviolet radiation in the range of UV-a and/or UV-b and bestlocation inactivate the absorbed light energy.

Suitable UV absorbers are, for example, commercially available compounds Tinuvin®, first of all, Tinuvin® 234, 326, 327 and 328, or Uvinul®, manufactured by Ciba or BASF SE.

To UV absorbers (light stabilizers) is a type of Uvinul® include compounds of the following classes: benzophenone, benzotriazole, cyanacrylate, esters of cinnamic acid, para-aminobenzoate and naphthalimide. In addition, as light stabilizers use other known chromophores, for example, hydroxyphenyltriazine or oxanilide. These compounds (alone or in mixture with other light stabilizers) is used, for example, in cosmetic preparations, in particular in sun care products, or for the stabilization of organic polymers. Particularly preferred UV absorber according to the invention is 4-n-octyloxy-2-hydroxybenzophenone. Examples of other suitable UV absorbers are the following connections:

substituted acrylates, such as ethyl-α-cyano-β,β-diphenyl-acrylate, isooctyl-α-cyano-β,β-diphenylacetate (mainly 2-ethyl-hexyl-α-cyano-β,β-diphenylacetate), methyl-α-methoxycarbonyl-β-phenyl-acrylate, methyl-α-methoxycarbonyl-β-(n-meth is xifei)acrylate, methyl-α-cyano-β-methyl-β-(p-methoxyphenyl)acrylate, butyl α-cyano-β-methyl-β-(p-methoxyphenyl)acrylate, N-(β-methoxycarbonyl-β-lanvins)-2-methylin-valleys, octyl-p-methoxycinnamate, isopentyl-4-methoxycinnamate, rocanova acid or its salts and esters;

derivatives of p-aminobenzoic acid, particularly its esters, for example ethyl ester of 4-aminobenzoic acid or ethoxylated ester of 4-aminobenzoic acid, salicylates, substituted esters of cinnamic acid (cinnamate), such as octyl-p-methoxycinnamate or 4-isopentyl-4-methoxycinnamate and 2-phenylbenzo-imidazol-5-acid or its salts;

derivatives of 2-hydroxybenzophenone, such as 4-hydroxybenzophenone, 4-methoxybenzophenone, 4-octyloxybenzophenone, 4-decyloxybenzoate, 4-dodecyloxybenzoyl, 4-benzyloxybenzophenone, 4,2',4'-trihydroxybenzophenone, 2'-hydroxy-4,4'-dimethoxy-2-hydroxybenzophenone, and sodium salt of 4-methoxy-2-hydroxybenzenesulfonate;

esters of 4,4-diphenylbutane-1,1-dicarboxylic acid such as bis(2-ethylhexyloxy) ether of 4,4-diphenylbutane-1,1-dicarboxylic acid;

2-phenylbenzimidazole-4-acid, and 2-phenylbenzimidazol-5-acid or their salts;

derivatives benzoxazole;

derivatives benzotriazole or 2-(2'-hydroxyphenyl)benztriazoles, e.g. the, such as 2-(2H-benzotriazol-2-yl)-4-methyl-6-(2-methyl-3-((1,1,3,3-tetramethyl-1-(trimethylsilyloxy)disiloxanyl)propyl)phenol, 2-(2'-hydroxy-5'-were)benzotriazol, 2-(3',5'-di-tert-butyl-2'-hydroxy-phenyl)benzotriazol, 2-(5'-tert-butyl-2'-hydroxyphenyl)benzotriazol, 2-[2'-hydroxy-5'-(1,1,3,3-TETRAMETHYLBUTYL)phenyl]benzotriazole, 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3'-tert-butyl-2'-hydroxy-5'-were)-5-chlorobenzotriazole, 2-(3'-sec-butyl-5'-tert-butyl-2'-hydroxyphenyl)benzotriazol, 2-(2'-hydroxy-4'-octyloxyphenyl)-benzotriazole, 2-(3',5'-di-tert-amyl-2'-hydroxyphenyl)benzotriazole, 2-[3',5'-bis(α,α-dimethylbenzyl)-2'-hydroxyphenyl]benzotriazole, 2-[3'-tert-butyl-2'-hydroxy-5'-(2-octyloxyphenyl)phenyl]-5-chlorobenzotriazole, 2-[3'-tert-butyl-5'-(2-(2-ethylhexyloxy)carbonylethyl)-2'-hydroxy-phenyl]-5-chlorobenzotriazole, 2-[3'-tert-butyl-2'-hydroxy-5'-(2-methoxy-carbonylethyl)phenyl]-5-chlorobenzotriazole, 2-[3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl]benzotriazole, 2-[3'-tert-butyl-2'-hydro-XI-5'-(2-octyloxyphenyl)phenyl]benzotriazole, 2-[3'-tert-butyl-5'-(2-(2-ethylhexyloxy)carbonylethyl)-2'-hydroxyphenyl]benzotriazole, 2-(3'-dodecyl-2'-hydroxy-5'-were)benzotriazol, 2-[3'-tert-butyl-2'-hydroxy-5'-(2-isooctylmercaptoacetate)phenyl]benzotriazole, 2,2'-Methylenebis[4-(1,1,3,3-TETRAMETHYLBUTYL)-6-benzotriazol-2-infenal], the full product of esterification of 2-[3'-tert-butyl-5'-(2-metaxia bonitatis)-2'-hydroxyphenyl]-2H-benzotriazole polyethylene glycol-300, [R-CH2CH2-COO(CH2)3]2with remainder R, meaning 3'-tert-butyl-4-hydroxy-5'-2H-benzotriazol-2-ylphenyl, 2-[2'-hydroxy-3'-(α,α-dimethylbenzyl)-5'-(1,1,3,3-TETRAMETHYLBUTYL)phenyl]benzotriazole and 2-[2'-hydroxy-3'-(1,1,3,3-Tetra-methylbutyl)-5'-(α,α-dimethylbenzyl)phenyl]benzotriazole;

benzylideneamino or its derivatives are mentioned, for example, in German patent application DE-A3836630, in particular, 3-benzylideneamino and 3(4'-methylbenzylidene)d-1-camphor;

α-(2-oxoborn-3-ilidene)toluene-4-acid or its salts, as well as monosulfat N,N,N-trimethyl-4-(2-oxoborn-3-ylidenemethyl)aniline;

dibenzoylmethane, such as 4-tert-butyl-4'-methoxydibenzoyl-Ilmatar;

compounds 2,4,6-triarylamine, such as 2,4,6-Tris{N-[4-(2-ethylhex-1-yl)oxycarbonyl]amino}-1,3,5-triazine, or a complex of 2'-ethylhexyloxy ether 4,4'-((6-(((tert-butyl)aminocarbonyl)phenylamino)-1,3,5-triazine-2,4-diyl)imino)bis(benzoic acid);

2-(2-hydroxyphenyl)-1,3,5-triazine, such as 2,4,6-Tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine, 2-(2-hydroxy-4-octyloxy-phenyl)-4,6-bis(2,4-dimetilfenil)-1,3,5-triazine, 2-(2,4-dihydroxy-phenyl)-4,6-bis(2,4-dimetilfenil)-1,3,5-triazine, 2,4-bis(2-hydroxy-4-proproxyphene)-6-(2,4-dimetilfenil)-1,3,5-triazine, 2-(2-hydroxy-4-octyloxyphenyl)-4,6-bis(4-were)-1,3,5-triazine, 2-(2-hydroxy-4-dodecyloxyphenyl)-4,6-bis(2,4-dimetilfenil)-1,3,5-triazine, 2-[2-hydro-XI-4-2-hydroxy-3-butylacetophenone)phenyl]-4,6-bis(2,4-dimethyl-phenyl)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-octyloxyphenyl)-phenyl]-4,6-bis(2,4-dimetilfenil)-1,3,5-triazine, 2-(2-hydroxy-4-tridecylalcohol)-4,6-bis(2,4-dimetilfenil)-1,3,5-triazine, 2-[4-(dodecyloxy/tridecylamine-2-hydroxypropoxy)-2-hydroxyphenyl]-4,6-bis(2,4-dimetilfenil)-1,3,5-triazine, 2-[2-hydroxy-4-(2-hydroxy-3-dodecyloxy-propoxy)phenyl]-4,6-bis(2,4-dimetilfenil)-1,3,5-triazine, 2-(2-hydroxy-4-hexyloxyphenyl)-4,6-diphenyl-1,3,5-triazine, 2-(2-hydroxy-4-methoxy-phenyl)4,6-diphenyl-1,3,5-triazine, 2,4,6-Tris[2-hydroxy-4-(3-butoxy-2-hydroxypropoxy)phenyl]-1,3,5-triazine, 2-(2-hydroxyphenyl)-4-(4-methoxy-phenyl)-6-phenyl-1,3,5-triazine or 2-{2-hydroxy-4-[3-(2-ethylhexyl-1-oxy)-2-hydroxypropoxy]phenyl}-4,6-bis(2,4-dimetilfenil)-1,3,5-triazine.

Other suitable UV absorbers are shown on pages 64-66 of the Legislation of the European Committee on cosmetics (Cosmetic Legislation, volume 1, Cosmetic Products, European Commission, 1999), which should be considered by an appropriate reference.

In addition, suitable UV absorbers described in European patent EP 1191041 A2 (lines 14 through 30 ([0030]) on page 6), the description of which is in full should be considered an appropriate reference.

UV absorbers are generally used in quantities of from 5 to 15% mass terms of thermoplastic polymer of the outer layer (2) or the inner layer (3). UV absorbers are preferably used in quantities of from 7 to 14 wt. -%, special is preferably about 8 to 12 wt. -%, first of all, from 9 to 11% of the mass.

Absorbed proposed in the invention is a multilayer molded article (1) of the ultraviolet radiation, which affects the surface of this product depends on the scope of the latter. For example, a multilayer molded article in one of the variants absorbs more than 5% of affecting its surface UV radiation. Proposed in the invention is a multilayer molded product preferably absorbs more than 20%, especially preferably more than 50%, especially more than 90% of affecting its surface UV radiation.

From the point of view of application of the proposed invention is a multilayer molded products are favorable, which is usually the highest absorption affecting IR - and UV radiation, however, preferable at the same time is the highest permeability of the specified products in the visible region of the spectrum. The permeability of the proposed invention is a multilayer molded product in the visible region of the spectrum usually is more than 20%. Its permeability in the visible region of the spectrum is preferably more than 30%, especially preferably more than 40%, especially more than 50%.

In addition, preferred is usually only a slight matte proposed izobretenii multilayer molded product. Matte proposed in the invention is a molded product in the General case is less than 5%, preferably less than 2%, particularly preferably less than 1.8%, especially less than 1.6%.

In another embodiment, a multilayer molded product (1) in the outer layer (2) optional use of organic absorbers of infrared radiation is not in the form of particles, which complement and enhance the absorbing effect nanoscale absorbers of infrared radiation.

In another embodiment, a multilayer molded product (1) in the outer layer (2) is additionally used antioxidants.

In another embodiment, a multilayer molded product (1) in the outer layer (2) further use of UV absorbers and organic absorbers of infrared radiation is not in the form of particles.

In another embodiment, a multilayer molded product (1) in the outer layer (2) further use of UV absorbers and antioxidants.

In another embodiment, a multilayer molded product (1) in the outer layer (2) in addition use antioxidants and organic absorbers of infrared radiation is not in the form of particles.

In another embodiment, a multilayer molded product (1) in the outer layer (2) further use of UV absorbers, antioxidants and organic absorbers of infrared radiation is not in the form of particles.

The AOC is e, in the outer layer (2), inner layer (3), and optionally available other layers proposed in the invention is a multilayer molded product (1) can be known to specialists additives to polymers, such as dyes, in particular, dyes and/or pigments, external lubricants, impact modifiers viscosity, wetting agents, antioxidants, biocides, flame retardants, fillers, such as silica, aerogel or carbon black, glass beads, fibers, e.g. carbon fibers and/or glass fibers, antistatic means, inorganic salts for example, sulphates or oxides, such as titanium dioxide or barium sulfate, pearlescent pigments or substances that reflects radiation in the near IR region of the spectrum.

In another embodiment of the proposed invention is a multilayer molded product (1) other layers may also contain the above additives such as UV absorbers, stabilizers, antioxidants, and so forth, the number of which is similar to the above quantities for the outer layer (2) or the inner layer (3).

In another embodiment of the proposed invention is a multilayer molded product (1) other layers may also contain an absorber of infrared radiation, the number of which is same as above for external the Loya (2).

Depending on the scope of the proposed invention is a multilayer molded product may have a very different configuration. The total thickness of the multilayer molded product, that is, the total thickness of the outer layer, the inner layer and, if necessary, other available layers, in General less than the length or width of the molded product. The length and/or width of the molded product is preferably at least 10 times, particularly preferably at least 20 times, especially at 100 times greater than its total thickness.

Proposed in the invention molded articles preferably have the form of plates, for example, hollow core slabs, slabs with two or more walls, monolithic slabs or films.

Another object of the present invention is a method of manufacturing a multilayer molded product (1), according to which the outer layer (2)containing a thermoplastic polymer, at least one nanoscale absorber of infrared radiation, optionally, at least one UV absorber, optionally at least one organic absorber of infrared radiation and, if necessary, antioxidants, applied to the surface containing thermoplastic polymer of the inner layer (3).

When this outer layer (2) and inner layer (3) prefix is Ino are made simultaneously or sequentially methods known in the art. These layers can be produced, for example, by extrusion, coextrusion or CAST method.

While the application of the outer layer (2) on the inner layer (3) is carried out by coextrusion, layup or gluing. The application is preferably carried out by coextrusion.

In a preferred embodiment of the method of manufacturing a multilayer molded product (1) outer layer (2) and inner layer (3) are made simultaneously by coextrusion.

In one of the variants proposed in the invention is a multilayer molded product (1)manufactured using the extrusion method, the thickness of the outer layer (2) is from 0.01 to 0.15 mm, the thickness of the specified layer is preferably between 0.015 to 0.1 mm, particularly preferably from 0.02 to 0.09 mm, especially from 0.025 to 0.08 mm

In one of the embodiments of multi-layer molded product (1) the melt viscosity of thermoplastic polymer of the outer layer (2) is similar to the melt viscosity of thermoplastic polymer of the inner layer (3). In another embodiment, a multilayer molded product (1) values of melt viscosity of thermoplastic polymers of the outer layer (2) and inner layer (3) may differ from each other by 10%, and the difference is preferably less than 5%, especially preferred is sustained fashion less than 1%.

In General, when producing a multilayer molded product is carried out, for example, by layering or coextrusion, melt viscosity of thermoplastic polymer of the outer layer (2) would be appropriate in accordance with the viscosity of thermoplastic polymer of the inner layer (3).

In a preferred embodiment of the method of manufacturing a multilayer molded product (1) the melt viscosity of thermoplastic polymer of the outer layer (2) and the melt viscosity of thermoplastic polymer of the inner layer (3) differ from each other by 10%, which primarily refers to the place of initial contact of these melts, and this difference is preferably less than 5%, particularly preferably less than 1%.

Proposed in the invention is a multilayer molded products in General are made by extrusion of the layers and their subsequent layup carried out in a roll mill or method "roll stack". The extrusion of the individual layers of the multilayer molded product can be realized, for example, in adenocarcinom or dvuhserijnom the extruder. The individual layers preferably ekstragiruyut using adenocarcinoma extruder and layer in a roll mill. In a particularly preferred embodiment, the layers coextruded in adenocarcinom or dvuhserijnom extrud the re, first of all, in adenocarcinom the extruder, and optionally layer in the roll mill. Roller mill can be equipped, for example, two or three rolls.

In one of the variants proposed in the invention method absorbers of infrared radiation is used in the form of a suspension. The solid content nanoscaling absorber of infrared radiation in such suspension is preferably at least 10 wt. -%, particularly preferably at least 20 wt. -%, first of all, at least 25% of the mass. in terms of the total weight of the suspension. Preferred is a high solid content nanoscaling absorber of infrared radiation in the specified suspension because it allows me to increase the dosage of the absorber in the outer layer.

In one embodiment, the implementation of the extrusion of the outer layer (2) and inner layer (3) additives, for example, nanoscale absorber of infrared radiation, primarily used in the form of a suspension, or a UV absorber, served in nutrient hopper of the extruder together with thermoplastic polymer.

In another embodiment, the extrusion of the outer layer (2) and inner layer (3) additives, for example, nanoscale absorber of infrared radiation, primarily used in the form of a suspension, or a UV absorber is introduced into the extruder in the form of masterbatches. When thermoplastic polymer is fed into the extruder h is cut supply bunker, while uterine mixture can be introduced into the extruder through the supply bunker or through a separate inlet.

For example, in the case of manufacturing the outer layer (2) a thermoplastic polymer serves to supply bunker adenocarcinoma of the extruder, while nanoscale absorber of infrared radiation in the form of masterbatches is introduced into the extruder through a separate inlet.

In another embodiment, for example, in the case of manufacturing the outer layer (2) a thermoplastic polymer serves to supply bunker adenocarcinoma of the extruder, while nanoscale absorber of infrared radiation and UV-absorber in the form of master batches injected into the extruder through a separate inlet.

In another embodiment of the proposed invention in the way of original compositions, respectively, for the outer layer (2) and inner layer (3) separately from each other compounding before coextrusions. Components of pre-compoundname compositions before coextruding first can be mixed in the melt, for example, in adenocarcinom or dvuhserijnom extruder, a kneader or roll mill, and then be processed in any suitable for subsequent extrusion form, e.g. granules or film. Then pre-compounded composition of the outer layer is (2) and inner layer (3) is introduced into the respective extruders for extrusion.

In the preferred embodiment proposed in the invention method, the outer layer (2) and inner layer (3) coextruding, and extrudates (corresponding melts) from separate extruders injected into the power supply unit matrix in which they are combined before they reach the matrix. In another embodiment, the respective extrudates separately injected into the matrix and combine only within the final output.

Proposed in the invention coextrudable multilayer molded product directly after the extrusion can be subjected to rolling in a rolling mill, receiving products most often in the form of a film. The thickness of the resulting films in the range of from 0.5 to 35 mm

Another object of the present invention is the application of the proposed invention is a multilayer molded products in the sphere of control of heat. Under the control of heat implies the application of these molded products in automobiles, architecture, construction, residential and administrative buildings, warehouses, stadiums, airports or other areas in which the heat generation due to the impact of thermal radiation is undesirable.

Proposed in the invention is a multilayer molded products are used mainly in construction, AB is mobilestore, aviation, shipbuilding, railway construction, electrical and electronics, for example, as filters for screens of cathode ray tubes.

Proposed in the invention is a multilayer molded product is preferably used as a material for glazing, roofing material, films in agriculture, primarily films for greenhouses, or as part of Windows.

Using a multilayer molded products, obviously you can produce items, primarily construction details, which contain several such multi-layer molded products. For example, several multilayer molded products in the form of plates or films can be separated by spacers, and thanks to that between the corresponding plates or films are formed air channels. Spacers can also consist of thermoplastic polymers of the outer layer (2) or the inner layer (3). Such construction details first of all you can use to control the heat in the buildings.

Multi-layer molded product by performing additional process steps such as heat treatment pressure or blow moulding, obviously, can be processed also in other products of the desired shape and configuration.

The use proposed is in the invention of the multi-layer molded products, containing nanoscale absorber of infrared radiation, can effectively protect the surface of, for example, the surface of buildings, vehicles or greenhouses, from the effects of thermal radiation. The use of these materials allows you to effectively control the heat in the interior spaces. The use of these materials in General can provide a high permeability to visible light while making efficient shielding of thermal radiation, allowing the internal space still available for sunlight and at the same time, not so very hot.

Below the invention is described in more detail by the example of its implementation, not limiting the scope of the invention, with reference to the accompanying description of the drawing (see figure 1), which is shown schematically suggested in the invention is a multilayer molded product (1) with the outer layer (2)containing nanoscale absorber of infrared radiation (8), inner layer (3) and, if necessary, other layers available(4), (5), (6) and (7). Thermal radiation (9) affects the surface of the outer layer (2) multi-layer molded product (1).

1. A multilayer molded article (1), including:
a. the outer layer (2)containing
i. thermoplastic polymer and
ii. at least one nanoscale absorber of IR radiation is of (8), and
b. below the outer layer (2) inner layer (3)containing
i. thermoplastic polymer
moreover, the absorber of infrared radiation is alloyed with antimony or indium tin oxide nanoparticles or bored rare earth metal in the form of nanoparticles.

2. A multilayer molded article (1) according to claim 1, with the outer layer (2) is in direct contact with the inner layer (3).

3. A multilayer molded article (1) according to claim 1, and as thermoplastic polymer in the outer layer use Polyacetal, polyacrylate, polyalkylacrylate, polycarbonate, polystyrene, complex, polyester, polyamide, polyamidimide, polyarylate, Polyarylamide, polyethersulfone, polyphenylsulfide, polyvinyl chloride, polysulfone, polyimide, polyetherimide, polytetrafluoroethylene, polyetherketone, peek, polyetherketoneketone, polybenzoxazole, polyoxadiazole, polysensitization, polybenzamidazole, propertydefinition, polypyromellitimide, polynoxylin, polybenzimidazole, polyoxides, polioksidony, politization, policiesin, polypyridine, polifeprosan, polypyridine, polypeptides, politiacal, polyerata, polypyrrolidone, polycarbon, Polyoxymethylene, polybutylene, polydimensional, politely, Polyacetal, polyanhydride, a simple polymer of the vinyl ether in isinitiator, polyvinyl alcohol, polyvinylacetal, polivinilhlorid, polyvinylacetal, a polymer of vinyl ester, polysulfone, polysulphide, polythioether, polysulfone, polyurethane, polyphosphazene, polysilazane, polyimide, polymethylmethacrylate, polyethylene terephthalate, polyolefin, such as polyethylene or polypropylene, a copolymer based on Acrylonitrile, styrene, acrylates, polyvinyl butyral, or a mixture of these polymers.

4. A multilayer molded article (1) according to claim 1, and as thermoplastic polymer in the inner layer use Polyacetal, polyacrylate, polyalkylacrylate, polycarbonate, polystyrene, complex, polyester, polyamide, polyamidimide, polyarylate, Polyarylamide, polyethersulfone, polyphenylsulfide, polyvinyl chloride, polysulfone, polyimide, polyetherimide, polytetrafluoroethylene, polyetherketone, peek, polyetherketoneketone, polybenzoxazole, polyoxadiazole, polysensitization, polybenzamidazole, propertydefinition, polypyromellitimide, polynoxylin, polybenzimidazole, polyoxides, polioksidony, politization, policiesin, polypyridine, polifeprosan, polypyridine, polypeptides, politiacal, polyerata, polypyrrolidone, polycarbon, Polyoxymethylene, polybutylene, polydimensional, politely, Polyacetal, polyanhydride, the polymer is Rastogi vinyl ether, polyvinylether, polyvinyl alcohol, polyvinylacetal, polivinilhlorid, polyvinylacetal, a polymer of vinyl ester, polysulfone, polysulphide, polythioether, polysulfone, polyurethane, polyphosphazene, polysilazane, polyimide, polymethylmethacrylate, polyethylene terephthalate, polyolefin, such as polyethylene or polypropylene, a copolymer based on Acrylonitrile, styrene, acrylates, polyvinyl butyral, or a mixture of these polymers.

5. A multilayer molded article (1) according to claim 1, with the outer layer (2) as additional additives contains UV absorbers, organic absorbers of infrared radiation is not in the form of particles, stabilizers, antioxidants, dyes, inorganic salts, pearlescent pigments, substances that reflects radiation in the near IR region of the spectrum, anti-fogging or fillers.

6. A multilayer molded article (1) according to claim 1, with the inner layer (3) as additional additives contains UV absorbers, organic absorbers of infrared radiation is not in the form of particles, stabilizers, antioxidants, dyes, inorganic salts, pearlescent pigments, substances that reflects radiation in the near IR region of the spectrum, anti-fogging or fillers.

7. A multilayer molded article (1) according to one of claims 1 to 6, the multi-layer molded product search is implemented in the form of a plate or film.

8. A method of obtaining a multilayer molded product (1), characterized in that
a. the outer layer (2)containing
i. thermoplastic polymer
ii. at least one nanoscale absorber of infrared radiation,
iii. optionally, at least one UV absorber,
iv. optionally at least one organic absorber of infrared radiation is not in the form of particles and
v. if necessary, antioxidants,
b. applied to the surface of the inner layer (3)containing
i. thermoplastic polymer
moreover, the absorber of infrared radiation is alloyed with antimony or indium tin oxide nanoparticles or bored rare earth metal in the form of nanoparticles.

9. The method according to claim 8, characterized in that the outer layer (2) and inner layer (3) are made simultaneously or sequentially.

10. The method according to claim 8, characterized in that the outer layer (2) and inner layer (3) coextruding.

11. The method according to claim 10, characterized in that the multilayer molded article (1) is subjected to lamination.

12. Application of multi-layer molded product according to one of claims 1 to 7 for control of heat, as films in agriculture, as part of Windows or as part of hollow-core slabs, double plates, plates with multiple partitions or monolithic slabs.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: resin is a polyacetylene compound, having a repeating unit of general formula (1) . In formula (1) R1 denotes a naphthalene group, phenanthrene group, pyrenyl group or anthracene group. Each of these four groups is a substituted group selected from: alkyl group, alkoxy group, a SR4 group (R4 denotes a hydrogen atom or an alkyl group), a NR5R6 group (R5 and R6 each denote a hydrogen atom or a group selected from alkyl groups), cyano group, carboxy group, sulphoxyl group, ester group, amide group and COR7 (R7 denotes an alkyl group, having 1-40 carbon atoms), or the following general formula (2) . In formula (2), R2 denotes a naphthalene group or an anthracene group; R3 denotes a phenyl group substituted with a substitute X in position m or position p; and substitute X is a group selected from: alkyl group, alkoxy group, SR4 group (R4 denotes a hydrogen atom or alkyl group), a NR5R6 group (R5 and R6 each denote a hydrogen atom or a group selected from alkyl group), cyano group, carboxy group, sulphoxyl group, ester group, amide group and COR7 (R7 denotes an alkyl group).

EFFECT: production of light regulating material capable of selectively controlling transmission of light in an arbitrary wavelength range from a wide wavelength range.

5 cl, 17 dwg, 1 tbl, 10 ex

FIELD: physics.

SUBSTANCE: system has a light filter, a power regulator which facilitates supply of energy to an instrument in response to the control signal for switching on the instrument, and a control unit. The light filter has a filter with an electrically controlled spectral characteristic, capable of changing light transmission from antireflection to darkened state in response to the control signal for switching the light filter to the darkened state. The control unit generates a control signal for switching the light filter to darkened state in response to a signal for switching on the instrument. The light filter generates a signal for confirming switching of the light filter to darkened state, and the control unit generates a control signal for switching on the instrument in response to the signal for confirming switching of the light filter to darkened state.

EFFECT: high reliability and reduced requirements for light filter switching time.

18 cl, 8 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a film which is resistant to adverse weather conditions for colouring reflective moulded articles yellow, e.g. road signs. The film has a polymethylmethacrylate (PMMA) layer coloured by a yellow anthraquinone dye containing (made from) moulding material. The moulding material consists of A) 10-90 wt % bonded solid phase with glass transition point over 70°C, containing a) 80-100 wt % (from A) methylmethacrylate and b) 20-0 wt % lower alkylacrylate, and B) 90-10 wt % viscous phase distributed in the solid phase with glass transition point below -10°C, average particle size of the viscous phase less than 130 nm and particle size inhomogeneity of the viscous phase less than 0.5. The viscous phase contains c) at least 50 wt % (from B) lower alkylacrylate, d) 0.5-5 wt % crosslinking monomer with three or more ethylene-unsaturated radically polymerisable residues. The cloured polymethylmethacrylate layer conforms to chromaticity coordinates (x; y) on the 1931 CIE standard colorimetric system preferably in the interval 0.4 ≤ x ≤ 0.54 and 0.44 ≤ y ≤ 0.54.

EFFECT: obtained film has higher weather resistance, excellent optical properties and is easy to manufacture.

13 cl, 1 ex

FIELD: physics; optics.

SUBSTANCE: non-reflecting neutral optical filter includes a substrate which is transparent in the 0.4-0.7 mcm spectral range and a partially transparent titanium layer and anti-reflecting titanium dioxide layer placed on the substrate in series. Geometrical thickness of the titanium dioxide layer is equal to 0.04-0.045 mcµm and the geometrical thickness of the titanium layer equals 0.014-0.018 mcm.

EFFECT: increased spectral transmittance of the non-reflecting neutral optical filter.

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FIELD: physics.

SUBSTANCE: coating includes dispersion metallic layers and dielectric layers. The dispersion layers used are layers of metal particles with average size d av, made in form of close-packed monolayers. The dispersion and dielectric layers alternate with each other. Average size dav of metal particles varies in the range 2-50 nm. Dielectric layers have optical thickness of λ0/4, where λ0 - is the wavelength of the band maximum of surface plasma absorption of the monolayer of metal particles, for which coefficient of absorption of the dispersion metallic layer is greater than coefficient of absorption of solid metal.

EFFECT: increased spectral selectivity of light-absorbing coating with retention of high value coefficient of absorption and low value of residual reflection.

2 dwg

The invention relates to the field of medicine uses for cancer treatment photodynamic therapy (PDT), and, in particular, serves to protect the view of the attending personnel from exposure to the reflected and scattered radiation therapeutic lasers [on pairs of gold with a wavelength of 633 nm or a diode with a wavelength of 670 nm and a power of 0.5-2.5 W]

The invention relates to the field of optical instrument, namely the elements of the optical-electronic systems that can be used for uniform attenuation of the incident radiation at low reflected in a wide spectral range

The invention relates to the field of optical equipment, technology for the production of optical elements, and in particular to methods of manufacturing optical elements and electronic systems that can be used for uniform attenuation of the incident radiation at low reflected in a wide spectral range

FIELD: chemistry.

SUBSTANCE: composite material can be used to produce sheet decorating and heat-insulating materials in residential, agricultural and industrial construction, as well as for producing moulded packaging elements and containers susceptible to biodegradation, i.e., having biodegradable properties. The polymer composite material consists of, wt %: fibre filler - waste cardboard and/or paper 11.0-12.0, cationic-anionic polyacrylamide resin Ultrarez DS-150 56.0-57.0, polyvinyl alcohol in form of a 15 wt % aqueous solution 27.0-28.0, sodium tetraborate 6.0-3.0. Described is a method of producing a composite material which involves separating fibres of the fibre filler on a rotary disperser with rotor speed of 2500-3000 rpm, wherein the polyvinyl alcohol is added at the mixing step in form of a 15 wt % aqueous solution together with the cationic-anionic polyacrylamide resin Ultrarez DS-150 and sodium tetraborate, pressing and drying.

EFFECT: improved physical and mechanical properties of the polymer composite material while simplifying the production technique.

2 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: fire retardant contains at least ammonium polyphosphate(s) and/or derivatives thereof, an oligomer or polymer derivative of 1,3,5-triazine or mixtures of several such derivatives and at least one compound selected from zinc dihydroorthophosphate, zinc borate, zinc orthophosphate, zinc pyrophosphate, zinc polyphosphate, zinc hydroxystannate, zinc stannate, boron phosphate, aluminium dihydroorthophosphate, aluminium orthophosphate, aluminium metaphosphate and mixtures thereof. The fire retardant can contain pre-condensed malamine derivatives, melamine salts and adducts thereof, ethylenediamine phosphate, piperazine phosphate, perazine polyphosphate, 1,3,5-trihydroxyethylisocyanurate, 1,3,5-triglycidylisocyanurate and triallylisocyanurate. The invention also relates to a polymer material, specifically a thermoplastic elastomer containing said fire retardant in amount of 5-25 wt %, preferably 10-25 wt %. The fire retardant has low water-solubility, decomposes at higher temperatures and can be used in smaller concentrations with high fire retarding action at the same time.

EFFECT: polymer material containing the fire retardant has improved physical and chemical properties, high fire-resistance and water-resistance.

14 cl, 3 tbl, 14 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a coating composition and can be used in making low flammability coatings for sports fields, floors, roofing and waterproof coatings in construction. The composition contains the following components, pts.wt: 100 - hydroxyl-containing low-molecular rubber, particularly a butadiene homopolymer with molecular weight of 2100-3200 and content of hydroxyl groups of 0.8-1.9 wt % or a copolymer of isoprene and butadiene with monomer ratio of 80:20, with average molecular weight of 3000-3500 and content of hydroxyl groups of 0.7-1.1 wt %; 20-24 polyisocyanate; 0.01-1.00 - urethane-formation catalyst; 10-50 - kaolin and 100-150 chalk as mineral filler; 8-10 - lime screenings as a drying agent; 40-50 - plasticiser; 3.0-5.0 - trifunctional low-molecular alcohol; 0.5-1.5 - 2,6-ditertbutyl-4-methylphenol as an antiageing agent; 1.5-2.0 - oleic acid as a surfactant; 1.0-8.0 - pigment and a combination of 12-20 - ammonium polyphosphate, 2-30 - aluminium oxide and 30-40 - sodium tetraborate pentahydrate (borax pentahydrate) as flame-retardants.

EFFECT: improved anti-fire properties of the cured material while maintaining an acceptable level of rheological properties of the composition for a free-casting method of forming coatings.

6 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a resin composition for making moulded articles, which efficiently block thermal radiation of sunlight and are excellent in terms of transparency, as well as articles moulded from said composition. The resin composition contains an aromatic polycarbonate resin (component A), particles of a hexaboride of at least one element selected from a group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sr and Ca, (component B-1) and at least another resin (component B-2) different from component A, and nitride particles. The other resin (component B-2) is selected from a group comprising acrylic resin, polyurethane resin, polyether resin and polyester resin. Total content of component B-1 and component B-2 ranges from 0.001 to 1 pts.wt per 100 pts.wt component A. The resin composition contains particles (1) formed from component B-1 and particles (2) formed from component B-1 and component B-2. Particles (1) and particles (2) are characterised by number-average diameter of secondary particles of 50 mcm or less, and maximum diameter of secondary particles of 300 mcm or less. The resin composition is obtained by mixing component B-1 and component B-2. A component B is obtained, which is mixed with component A. A mother batch is obtained, which is mixed with component A. An article is moulded from the resin composition.

EFFECT: resin composition for obtaining moulded articles which efficiently block thermal radiation of sunlight and are excellent in terms of transparency.

15 cl, 2 dwg, 2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to production of moulding material for making articles for general industrial purposes. The composition for producing moulding material contains novolac-type phenol-formaldehyde resin, urotropin, butadiene-nitrile rubber, zinc borate, silica fibre filler, calcium stearate or zinc stearate and processed chrysotile asbestos.

EFFECT: improved system of properties (manufacturability, thermophysical properties, strength), which enables production and use of quality articles for general industrial purposes.

2 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: polymer composition contains a polycarbonate polymer (component A), coated hexaboride particles (component B) as well as metal nitride particles (component C). The hexaboride particles consist of particles of a hexaboride of at least one element selected from a group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sr and Ca and a coating layer containing a metal oxide. The composition contains particles of a nitride of a metal selected from a group consisting of Ti, Zr, Hf, V, Nb and Ta. The composition is obtained by mixing in molten state coated particles of hexaboride, metal nitride and a polymer dispersant with a polycarbonate polymer.

EFFECT: invention provides the article with efficient heat-reflecting properties, excellent transparency and water-resistance.

13 cl, 1 dwg, 1 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: compound contains the following in pts.wt: organosilicon compound-modified epoxy resin in furylglycidyl ether SEDM-3R 100, hardener - product of reaction of formaldehyde and phenol with diethylene triamine aromatic diamine UD-583D 19-23 and filler - boron nitride (BN) with particles having an anisometric shape 30-65.

EFFECT: invention increases strength of the glue joint and its resistance to multiple thermal shocks.

2 tbl, 23 ex

FIELD: chemistry.

SUBSTANCE: composition contains the following in pts.wt: A) 40-95 branched aromatic polycarbonate and/or branched aromatic polyether polycarbonate; B) 1-25 graft copolymer; C) 9-18 talc; D) 0.4-20 bisphenol A based oligophosphate as a phosphorus-containing fire retardant; E) 1-6 one or more inorganic boron compounds selected from Zn4B2O7·H2O, Zn2B6O11·3.5H2O and/or ZnB4O7·4H2O and F) 0-3 polytetrafluoroethylene as an agent for preventing formation of droplets. Copolymer (B) is obtained from B.1) 5-95 wt % one or more vinyl monomers per B.2) 95-5 wt % one or more graft copolymerisation bases selected from silicone rubber (B.2.1) and silicone-acrylate rubber (B.2.2), wherein the base has glass transition temperature lower than 10°C.

EFFECT: invention enables to obtain a composition with excellent fire resistance and high heat resistance, and which also meets high fire-prevention technical requirements according to ASTM E162 and ASTM E662 standards.

12 cl, 1 tbl, 7 ex

FIELD: chemistry

SUBSTANCE: the invention relates to fire-proof polycarbonate compositions with modified shock resistance, used to manufacture moulded products. The composition contains, in mass parts: A) 40-95 branched aromatic polyester-carbonate; B) 1-25 graft polymer; C) 9-18 agilite; D) 0,4-20 oligophosphate based on diphenol A as a phosphorus-containing anti-pyrene; E) 1-6 of one or several boron-containing inorganic compositions selected from Zn4B2O7·H20, Zn2B6O11·3,5H20 and/or ZnB4O7·4H20 and F) 0-3 polytetrafluorethylene used to prevent drop formation. The composition does not contain thermoplastic vinyl (co)polymers and poly alkylene terephthalates G.2. The thermoformable products are made by melting and mixing the components of the composition. The resulting molten mass is cooled and granulated. The granulate is melted and sheets are extruded from the molten mass. Then the three-dimensional shape is formed by means of deep draw with the temperature of 150-220° C.

EFFECT: production of compositions with excellent fire-proof properties and high heat resistance, which correspond to the fire safety regulations in accordance with ASTM E162 and ASTM E662.

6 cl, 1 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: intermediate layer of multilayer glazing is made from polyvinyl butyral and contains agents which selectively absorb infrared radiation. The intermediate layer contains lanthanum hexaboride in amount of 0.005-0.1% of the weight of the polyvinyl butyral sheet which effectively absorbs infrared radiation at 100 nm. The intermediate layer also contains an epoxide agent selected from a group consisting of poly(oxypropylene)glycol diepoxides, 2-ethylhexyl glycidal ether, epichlorohydrin and polypropylene glycol in amount of 0.1-10.0% of the weight of the polyvinyl butyral sheet.

EFFECT: intermediate layer has excellent characteristics for selective attenuation of infrared radiation, which do not deteriorate due to the effect of the surrounding medium.

4 cl, 3 dwg, 1 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to the rubber industry and can be used in making industrial rubber articles. The butadiene-methylstyrene rubber based rubber mixture contains sulphur, diphenyl guanidine, a vulcanisation accelerator, technical carbon, zinc oxide, stearic acid, an anti-ageing agent and a modifier. The vulcanisation accelerator used is sulphenamide Ts, the anti-ageing agent and modifier are 2-(dibutylaminomethyl)-4-methyl-6-(1,7,7-trimethylbicyclo[2.2.1]hept-exo-2-yl)phenol.

EFFECT: high building tack while maintaining high ageing resistance of the butadiene-methylstyrene rubber based rubber mixture.

3 tbl, 4 ex

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