Foamed vinyl aromatic polymer composition and method of producing said composition

FIELD: chemistry.

SUBSTANCE: invention relates to the technology of producing granular foamed compositions based on vinyl aromatic compounds and can be used in making articles from foam plastic. The foamed composition contains a polymer matrix selected from a copolymer containing 90-99.995 wt % of at least one vinyl aromatic monomer and 0.005-10 wt % salt or C1-C4 alkyl ether of styrenesulphonic acid; or a polymer mixture containing 92-99.995 wt % vinyl aromatic (co)polymer and 0.005-8 wt % of a product selected from a salt or C1-C4 alkyl ether of styrenesulphonic acid and a copolymer of styrene and a salt or C1-C4 alkyl ether of styrenesulphonic acid; 1-10 wt % with respect to weight of the polymer matrix of the foamed additive selected from aliphatic or cycloaliphatic hydrocarbons containing 3-6 carbon atoms, or mixtures thereof, halogenated derivatives of aliphatic hydrocarbons containing 1-3 carbon atoms, and carbon dioxide. Foamed beads, foamed articles and methods of producing granular foamed compositions in an aqueous suspension or in a mass are also described.

EFFECT: obtaining foamed granules having low density and low electrostatic charge.

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The present invention relates to compositions expanded onto vinylaromatic polymers and their method of manufacture.

More specifically, the present invention relates to granules obtained on the basis of expanded onto vinylaromatic polymers, for example, expanded onto a styrene polymer, of which, after their foaming obtain foamed beads having low density and low electrostatic charge.

More specifically, the present invention relates to granules comprising expanded onto the polystyrene, which are foam balls on the outer surface of which is supported by the reduced electrostatic charge, especially after prolonged friction each other.

More specifically, the present invention also relates to a method for manufacturing compositions are expanded onto vinylaromatic polymers produced in the form of granules.

In accordance with the present description, unless otherwise specified, all operating conditions specified in the text, should be considered as preferred terms.

Expanded onto vinylaromatic polymers and, in particular, expanded onto polystyrene (EPS)are known products, for a long time used for the manufacture of products used in various industries, most the most important of which is their use as insulating materials.

These products are produced as follows: first, polymer granules, impregnated expanded onto a liquid, for example, aliphatic hydrocarbons such as pentane or hexane, stand for swelling in the closed equipment, and then the swollen particles are molded into the mold by simultaneous influence of pressure and temperature. The swelling of the particles is usually produced in an atmosphere of steam or other gas, which is supported at a temperature slightly higher than the glass transition temperature (Tg) of the polymer.

Specialists in this field of technology is well known, and, as mentioned above, expanded onto vinylaromatic polymers and, in particular, expanded onto polystyrene, manufactured in the form of compact granules, impregnated with a foaming additive; the diameter of these granules is typically in the range from 0.5 to 1.5 mm.

When processing, the pellets are first subjected to preliminary foaming in a suitable tank. Thus obtained foamed beads was incubated for 12-24 hours, and then loaded into the molds of the desired products. After performing the pre-foaming, foam balls, as such, as well as balls that contain additives that improve their characteristics, is transported through the pneumatic devices in the other technology is castke through appropriate piping. In fact, this type of transportation is the easiest way to avoid ejection foam balls into the environment.

However, when the pneumatic transportation device is a continuous friction balls together, which, in turn, causes the formation on the surface of the electrostatic charges. Since the electrostatic charge may cause an electrical discharge, which can cause ignition of flammable foam balls, also due to the possible presence of residual quantities of foaming additives, for example, pentane, transforming and processing equipment, for example, to handle expanded onto polystyrene must be grounded. Despite this, there is always the risk of fire, even if the polymer has been added to the moderator of burning.

To overcome this drawback, it was proposed to add to the balls of Quaternary ammonium salts as described, for example, in European patent EP 289321. However, the foaming steam removes most of these salts, reducing the effect of the additive.

In the European patent EP 470455 described the use of the additive, obtained on the basis of ammonium salts and silicon oxide. In this case, when the foaming removes part of the antistatic additives. In addition, Pris is DTIE silicon oxide hinders sintering.

In U.S. patent 5124381 and 4124543, respectively, describe the use of silicon oxide and derivatives of choline and aqueous solutions containing esters of sugars, esters of glycerol and polyols. The problem, however, remains as pairs used in the foaming, remove additives.

Thus, there is a need to develop expanded onto a material for the manufacture of particles derived from vinylaromatic compounds containing athermal Supplement, on which is formed an electrostatic charge during the manufacture of foamed beads.

Currently, the applicant has developed an expanded onto the composition based vinylaromatic connections that are shaped in the form of granules, which allows you to get the specified result. In particular, the applicant has found that the use of reactive antistatic additives (i.e., which are incorporated into the polymer chain vinylaromatic polymer) reduces electrostatic charge on the foam balls even when prolonged contact with the steam required to achieve very low densities.

Expandable polystyrene, in particular, used as thermal insulation material in construction, where it is mainly used in the form of flat sheets. Manufacturers of such materials tend to get materials is very low densities to conserve raw materials, because they buy the UPU by weight, and subsequently sell the finished foam products for volume.

In addition to reducing electrostatic charge, while getting very low densities it is also important to ensure good thermal insulation properties. As such, the ability to obtain low density is not an advantage because it greatly increases thermal conductivity of the sheet, which then must be compensated for by an increase of its thickness. To overcome this drawback, it was proposed to introduce into the polymer metaloproteinase materials, such as graphite, carbon black, aluminum, etc.

For example, in European patent 620246 described method of manufacturing the beads are expanded onto a polystyrene containing NameProperty material distributed on the surface of the balls or, alternatively, introduced inside of the particles.

In Japanese patent application JP 63-183941 described the use of graphite to improve the insulating ability of polystyrene foam.

Thus, one aspect of the present invention is to provide expanded onto a composition based on vinylaromatic compounds produced in the form of granules, which can be made of foamed beads with low density and low electrostatic charge, which includes:

a. polymer matrix, s is annoy from:

A1. copolymer containing:

from 90 to 99,995% of at least one vinylaromatic monomer; and

0.005 to 10 wt.%, salt or corresponding With1-C4-Olkiluoto ether styrelseledamot acid; or

A2. polymer blend including:

from 92 to 99,995%by weight, vinylaromatic (co)polymer; and

0.005 to 8 wt.%, product selected from the salts or the corresponding1-C4-Olkiluoto ether styrelseledamot acid and a copolymer of styrene and salts or the corresponding1-C4-Olkiluoto ether styrelseledamot acid; and

b. from 1 to 10 wt.%, in terms of the weight of the polymer matrix (a) foaming additives.

Used in the present description and the claims the term vinylaromatic (co)polymer means a polymer product, the mass-average molecular weight Mw is in the range of 50,000 to 300,000, preferably from 70,000 to 220,000 of.

Vinylaromatic (co)polymers, as well as the copolymer (A1)can be obtained by polymerization of a mixture of monomers, which comprises 50-100 wt.%, one or more vinylaromatic monomers and 0-50 wt.%, at least one copolymerizable monomer.

Vinylaromatic monomers can be selected from monomers corresponding to the following General formula:

in which R represents Soboh is hydrogen or methyl group, n is zero or an integer in the range from 1 to 5, and Y represents a halogen, for example chlorine or bromine, or alkyl or CNS radical containing from 1 to 4 carbon atoms.

Examples vinylaromatic monomers corresponding to the above General formula are: styrene, α-methylsterols, methylsterol, atillery, butalbiral, dimethylstyrene, mono-, di-, tri-, Tetra - and Penta-chloresterol, Postira, mitoxantron, acetoxystyrene etc. Preferred vinylaromatic monomers include styrene and α-methylsterol.

Vinylaromatic monomers corresponding to General formula (I), can be used as such or in a mixture comprising up to 50 wt.%, these monomers and other copolymerizate monomers. Examples of such monomers include (meth)acrylic acid, With1-C4-alkalemia esters of (meth)acrylic acid such as methyl acrylate, methyl methacrylate, acrylate, methacrylate, isopropylacetate, butyl acrylate, amides and NITRILES of (meth)acrylic acid, for example, acrylamide, methacrylamide, Acrylonitrile, Methacrylonitrile, butadiene, ethylene, divinylbenzene, maleic anhydride, etc. Preferred copolymerizate monomers are Acrylonitrile and methyl methacrylate.

The copolymer (A1) contains 0.005 to 10 wt.%, salt or corresponding With1-C4-Olkiluoto ether Stralsund the new acid. Styrelseledamot acid or a metal salt, or in the form of ester, preferably used in amounts comprising from 0.08 to 3.0%, more preferably from 0.01 to 1.5%.

In accordance with the present invention, the component (A2) product selected from the salts or the corresponding1-C4-Olkiluoto ether styrelseledamot acid and a copolymer of styrene and styrelseledamot acid, in the form of a metal salt or the corresponding1-C4-Olkiluoto ether, may be used in amounts of from 0.005 to 8 wt.%, preferably from 0.01 to 6 wt.%, for example, from 0.05 to 4%.

The mass-average molecular weight Mw of the copolymer of styrene and styrelseledamot acid used in the form of a salt or a complex ester ranges from 150,000 to 250,000, and the content of sulfonic groups (in the form of a salt or ester groups), distributed along the polymer chain, is in the range from 0.5 to 10 mol.%, preferably from 2 to 8%.

The copolymer of styrene and styrelseledamot acid used in the form of a salt or complex of an ether, a product is described in the literature, for example, described in U.S. patent 3870841.

Salt styrelseledamot acid or a copolymer of styrene and styrelseledamot acid is a salt of an alkaline or alkaline-earth metal, for example sodium, potassium or calcium is. However, there may be used salts of other metals, such as aluminum, or transition metals such as zinc, iron, copper, chromium, manganese, etc.

In combination with vinylaromatic materials used to produce expanded onto pellets, representing an aspect of the present invention may be used in any foaming additive, which can be introduced into the polymer matrix. In the General case, apply a liquid substance having a boiling point which is in the range from 10 to 100°C., preferably from 20 to 80°C. Typical examples of such substances are aliphatic or cycloaliphatic hydrocarbons containing from 3 to 6 carbon atoms, for example, n-pentane, isopentane, cyclopentane, or mixtures thereof; halogenated derivatives of aliphatic hydrocarbons containing from 1 to 3 carbon atoms, for example, DICHLORODIFLUOROMETHANE, 1,2,2-trifluoroethane, 1,1,2-trifluoroethane, carbon dioxide and water.

To keep foaming additives in the polymer matrix, along with the foaming additive may be used additives capable of forming weak ties (e.g., hydrogen bridges)and strong ties (e.g., acid-base adducts). Examples of such additives include methyl alcohol, isopropyl alcohol, dioctylphthalate, dimethylcarbonate, derivatives containing and is infogruppu.

If you want to make are expanded onto the composition in pellet form, obtained on the basis of vinylaromatic connection, which can be obtained foamed beads, during sintering which are finished products that have low density and high thermal insulation ability, in the composition based vinylaromatic connections, representing an aspect of the present invention, may be added one or more neteploprovodnym additives chosen from:

c) from 0.01 to 25 wt.%, in recalculation on weight of the polymer (a) carbon black average particle diameter is from 30 to 1000 nm, the surface area is from 5 to 200 m2/g, a sulfur content ranging from 0.1 to 100 parts per million and iodine number is from 5 to 40 mg/kg;

d) from 0.01 to 10 wt.%, in recalculation on weight of the polymer (a) natural, synthetic, foam, expanded onto the powdered form of graphite, the maximum particle size is from 0.05 to 100 microns;

e) from 0.01 to 10 wt.%, in recalculation on weight of the polymer (a) hydrotalcite or inorganic derivative of silicon.

The particles of the filler, representing soot, in particular primary soot particles that have a size of 30 to 1000 nm, preferably from 80 to 500 nm, specific surface area (determined in accordance with ASTM D-6556), are the th from 5 to 200 m 2/g, preferably 5 to 50 m2/g and a sulfur content of 0.1 to 100 ppm, preferably from 0.1 to 60 parts per million.

Other characteristics of carbon black are listed below. Ash is from 0.001 to 1%, preferably from 0.01 to 0.3% (determined in accordance with ASTM D-1506)and heat loss (determined in accordance with ASTM D-1509) is from 0.001 to 1%, preferably from 0.01 to 0.5%, the rate of absorption of n-dibutylphthalate (determined in accordance with ASTM D-2414) is 5-100 ml/(100 g), preferably 20-80 ml/(100 g)and iodine value (determined in accordance with ASTM D-1510) is from 10 to 30 g/kg

In accordance with the present invention, carbon black can also be a conductive material, because of its electrical resistivity is less than 15 Ohm·cm, preferably less than 10 Ω·cm, typically ranges from 2 to 8 Ohms·see

The filler constituting the carbon black may be added to the expanded onto the composition based vinylaromatic compounds in pellet form, in such quantities that the final concentration in the polymer is from 0.01 to 25 wt.%, preferably from 0.05 to 20%, even more preferably from 0.1 to 10%.

Carbon black is used according to the present invention, can be manufactured in accordance with the following basic known the diversified techniques, for example, a furnace method, a method of obtaining thermal carbon black, a method of obtaining acetylene black, or a method of obtaining lamp black.

A more detailed description of soot are shown, for example, Kirk-Othmer, "Encyclopedia of Chemical Technology", fourth edition, volume 4, John Wiley & Sons.

Particles of natural or synthetic graphite can have an average size or average diameter (d50) (average volume diameter, which have 50% of the particles of powdered material), measured using laser granulometry, comprising from 0.05 to 100 μm, preferably from 1 to 13 μm, and specific surface area of 5-20 m2/, an example of such a graphite is a product Asbury 5 supplied Asbury, the diameter of which is 4.5 μm. Graphite may also be a foamed material or the material is expanded onto the type.

Graphite filler may be added in granular expanded onto the composition based vinylaromatic compounds in such amounts that the final concentration in the polymer composition is from 0.01 to 10 wt.%, preferably from 0.05 to 8%, even more preferably from 0.1 to 6%.

Hydrotalcite or a derivative of silicon, respectively, are used in quantities of 0.01 to 10 wt.%, preferably from 1 to 7%, more preferably from 2 to 5%.

Derived the silicon is a group product of clays, for example, kaolinite and talc, mica, clay and montmorillonite. Preferably a derivative of silicon is a talc.

A derivative of silicon, and hydrotalcite represents particles of spheroidal shape, which have an average size or average diameter of from 5 to 50 μm. An example of a derived silicon is a talc brand TL-16 supplied Teloon Chemicals having a particle diameter of 16 μm. Pellets are expanded onto a composition based on vinylaromatic connections, representing an aspect of the present invention may contain conventional additives are usually introduced in a traditional vinylaromatic polymers, for example, pigments, stabilizers, flame retardants, antistatic additives, baking powder, etc. In particular, they may contain flame-retardants in amounts of 0.1 to 8%, and the additive synergistic effects in the amount of 0.05 to 2% based on the weight of the entire material.

The flame retardants, especially suitable for the manufacture of compositions based vinylaromatic compounds are brominated aliphatic, cycloaliphatic and aromatic compounds, for example, hexabromocyclododecane, pentabromodiphenylether and pentabromophenoxy ether.

Pellets are expanded onto the comp is the exposure on the basis of vinylaromatic connection representing an aspect of the present invention, suitable for the manufacture after heating to a temperature equal to or higher than the glass transition temperature of the polymer matrix (a) foam balls that are after the pneumatic transportation performed for 20 seconds, for example, in a stream of air, have an electrostatic charge which is less than 1000 volts, typically from 100 to 700 volts. Measurement of the electrostatic charge produced in a cylindrical metal container with a diameter of 100 mm and height 30 mm, equipped with a lid and switch to the tangential entry of the air at an angle of 30 degrees.

Electrostatic charge is measured by the electrometer equipped with the appropriate probe. In a metal container placed 50 ml of foam balls, close the lid on the container and enter the blown air from the system air supply (23°C, 50%relative humidity, flow rate 3.8 m3/h) for 20 seconds. Then the lid is open, and the container probe is introduced so that it reached the layer of balls at the bottom of the container, and measure the potential (in volts) for 18 seconds after opening the lid.

After sintering, expanded onto the balls can be obtained foamed product, the density of which is from 5 to 50 g/l, preferably from 10 to 25 g/L.

In particular, these foamed isdeletable excellent insulating ability, pronounced indicator of thermal conductivity, which ranges from 25 to 50 mW/MK, preferably from 30 to 45 mW/MK. Measurement of thermal conductivity is carried out at 10°C in accordance with the method of DIN 13163 on the finished product produced from blocks density of 15 g/L.

Another aspect of the present invention relates to a method of manufacturing expanded onto granular compositions based vinylaromatic connections that after foaming, have a density of less than 50 g/l, and electrostatic charge less than 1000 volts after the pneumatic transportation performed within 20 seconds.

In particular, another aspect of the present invention relates to a method of manufacturing expanded onto granular compositions based vinylaromatic connection, which involves the polymerization in aqueous suspension of one or more vinylaromatic monomer, possibly in combination with at least one polymerized by the co monomer in an amount up to 50 wt.%, it is possible in the presence of a filler comprising one or more additives (C)-(e)described above, and in the presence of a radical initiator, salt or1-C4-Olkiluoto ether styrelseledamot acid and/or of a copolymer of styrene and salts or the corresponding1-C4-Olkiluoto ether styrelseledamot acid and su is inuaysha additive (b), added before, during or after the polymerization.

The polymerization is carried out in aqueous suspension, preferably in the presence of suspensorysex agents selected from inorganic salts of phosphoric acid, for example, calcium phosphate or magnesium phosphate. Such salts of phosphoric acid can be added to the polymerization mixture in little condition, and can be synthesized in situ by the reaction between sodium pyrophosphate and magnesium sulfate.

The polymerization can also be carried out in the presence of additional organic suspensorysex agents, for example, polyvinylpyrrolidone, polyvinyl alcohol, etc.

The initiating system usually includes two peroxide, first, who has the time polurethane equal to one hour, at 85-95°C, and the second, which is the time polurethane equal to one hour, at 110-120°C. Examples of such initiators include benzoyl peroxide and tert-butylperbenzoate.

Get vinylaromatic polymer or copolymer has a mass-average molecular weight Mw of $ 50,000 to 300,000, preferably from 70,000 to 220,000 of. In General, more ways of making expanded onto vinylaromatic polymers in aqueous solutions or, in General, the polymerization in suspension, reviewed in Journal of Macromolecular Science, Review in Macromolecular Chmistry and Physics C31 (263) 215-299 (1991).

To improve the stability of the suspension can increase the viscosity of the reagent solution, including vinylaromatic monomer, dissolved in it vinylaromatic polymer at a concentration factor of 1 to 30 wt.%, preferably from 5 to 20% based on the weight of the monomer itself, possibly in combination with a copolymer of styrene and a salt or a corresponding1-C4-Olkiluoto ether styrelseledamot acid.

The solution can be obtained by dissolving a pre-obtained polymer in a mixture of reagents (for example, fresh polymer or waste of the previous polymerizate and/or expansion) or by preliminary polymerization of the monomer or mixture of monomers in bulk to obtain the above mentioned concentration, and followed by the polymerization in aqueous suspension.

When carrying out the polymerization in suspension using other polymerization additives that are usually used for obtaining expanded onto vinylaromatic polymers, for example, stabilizers, suspension agents transfer circuit, an auxiliary foaming means, the nucleation initiators, plasticizers, flame retardants, etc.

Foaming additives are preferably added during the holding stage of polymerization or after using the method of repeated suspensio the project. In particular, this method includes the following steps:

the polymerization in aqueous suspension of one or more vinylaromatic monomer, possibly in the presence of filler, including additives (C)-(e), and salts or complex ester styrelseledamot acid and/or of a copolymer of styrene with salt or corresponding With1-C4-alkylbis ether styrelseledamot acids;

the Department thus obtained granules;

re-suspending the pellet in water and heated to produce spherical granules;

adding to the slurry foaming additives and keeping the granules in contact with them to complete impregnation; and

re-separation of the granules.

Foaming additives are selected from aliphatic or cycloaliphatic hydrocarbons containing from 3 to 6 carbon atoms, for example, n-pentane, isopentane, cyclopentane or mixtures thereof; halogenated derivatives of aliphatic hydrocarbons containing from 1 to 3 carbon atoms, for example, DICHLORODIFLUOROMETHANE, 1,2,2-triptorelin, 1,1,2-triptorelin; carbon dioxide and water.

Upon completion of the polymerization, possibly after re-suspending receive essentially spherical polymer beads with an average diameter constituting from 0.2 to 2 mm, which are evenly distributed foaming additive and others may present obuvki.

Then the balls are discharged from the polymerization reactor and washed with a continuous or periodic manner nonionic surfactants or, alternatively, acids, as described in U.S. patent 5041465. The polymer beads can be subjected to heat treatment with hot air at a temperature of from 30 to 60°C.

Another aspect of the present invention relates to a continuous method of manufacturing expanded onto granular compositions based vinylaromatic connection, which includes the following sequence of steps:

i) adding salt or corresponding With1-C4-Olkiluoto ether styrelseledamot acid or a copolymer of styrene and salts or the corresponding1-C4-Olkiluoto ether styrelseledamot acid and possibly additives (C)-(e)described above, granular or already melted vinylaromatic (co)polymer, the mass-average molecular mass Mw is between 50,000 to 300,000, preferably from 70,000 to 220,000 of;

ii) perhaps the heat vinylaromatic polymer to a temperature greater than the corresponding melting temperature;

iii) the introduction of a foaming additive (b) and other possible additives present, for example, flame retardants, in the molten polymer before it extrusions the die plate;

iv) mixing the thus obtained polymeric composition by means of static or dynamic mixing elements; and

v) granulating the thus obtained composition in the device that includes the die plate, the camera cutting system for cutting.

At the end of the granulation can be obtained essentially expanded onto a spherical beads with an average diameter constituting from 0.2 to 2 mm.

In accordance with the present invention, step (i) may include loading the extruder already formed polymer granules, possibly mixed with waste. In the extruder mixing the individual components, then add pre-molten polymer part, additives and foaming additives.

In the alternative case can be used the polymer already in the molten state directly from the installation of polymerization (in solution), in particular, after processing in the plant for the removal of volatile substances. The molten polymer is loaded into a suitable device, for example, an extruder or a static mixer, which produces mixing it with all the additives/components, and then with foaming additive, and then the polymer is extruded, expanded onto a receiving granulate, which represents an aspect of the present invention.

The pellets p is polymer composition can be subjected to annealing at a temperature below the glass transition temperature or equal to the glass transition temperature (Tg)or more of its excess, for example Tg plus up to 8°C, possibly under pressure. Detail continuous manufacture in mass vinylaromatic polymers are described in international patent application WO 03/53651.

After carrying out the polymerization, which can be performed both in suspension and in a continuous way, the obtained expanded onto the balls are subjected to pre-treatment, which is usually applied to traditional expanded onto the balls and which essentially consists of:

1) applied on the balls of the coating from a liquid antistatic agents, for example, amines, ethoxylated tertiary alkylamines followed, copolymers of ethylene oxide and propylene oxide, etc. These antistatic agents helps keep cover and screening of balls received in suspension;

2) drawing on these balls cover, which essentially consists of a mixture of mono-, di - and tri-ethers of glycerol or other alcohols and fatty acids, and metallic stearates such as zinc stearate and/or magnesium, possibly mixed with soot.

Below are some illustrative and non-limiting examples, in order to better understand the present invention and examples of its implementation.

EXAMPLE 1 (comparative 1)

In a closed container with stirring, the mixture was charged, comprising the th of 115 parts of the mass, water, 0.3 parts of calcium phosphate C13-08, supplied by the company Budenheim (DE), pre-dispersed in 30 parts of water, 100 parts of styrene, 0.30 parts of benzoyl peroxide and 0.25 parts of tert-butylperbenzoate. The mixture is heated with stirring to 90°C; when the temperature reached 80°C., load of 0.01 part of sodium metabisulfite, pre-dissolved in 5 parts of water.

After approximately 4 hours at 90°C, add another 0.6 parts of calcium phosphate, pre-dispersed in 60 parts of water, and then a mixture of 7 parts (70/30) n-pentane and isopentane, also with stirring; the entire mixture is heated for another 4 hours to 125°C, then cooled down and the party unload.

The granules thus obtained are expanded onto the polymer was then collected, washed, dried in a stream of air at 23°C, then add a 0.02% non-ionic surfactants consisting of a condensate of ethylene oxide and of propylene oxide to glycerin, Pluronic 3100, supplied by BASF, and sifted to separate the fraction with a diameter, comprising from 1 to 1.5 mm.

The fraction of particles having a size of from 1 to 1.5 mm, add 0.2% glycerylmonostearate and 0.1% of zinc stearate.

The product is subjected to preliminary foaming with steam at a temperature of 100°C, and density, component 15.0 g/L. the resulting beads was incubated for 24 hours n and 23°C and 50%relative humidity. Electrostatic charge measured after a 20-second pneumatic transportation in air flow amounted to 3000 volts. The remaining beads were used to estimate the blocks obtained by molding (size 1040×1030×550 mm) with vapor pressure equal to 6×104PA (0,6 bar). The duration of cooling was 10 minutes.

Then the blocks are cut to complete the assessment. Sintering was 60%, and thermal conductivity amounted to 41.5 mW/MK.

EXAMPLE 2

Repeating Example 1, replacing the sodium metabisulfite equal number styrelseledamot sodium shipped XZL Chemical Co., dissolved in 5 parts of water.

The product was treated in accordance with the procedure described in comparative example 1. Electrostatic charge measured after a 20-second pneumatic transportation in air flow amounted to 800 volts, the duration of the cooling units (density of 15.0 g/l) was 11 minutes, sintering was 65%, and thermal conductivity of 37 mW/MK.

EXAMPLE 3

Repeating Example 1, replacing the sodium metabisulfite equal number styrelseledamot sodium shipped (XZL Chemical Co.), dissolved in 5 parts of water, and downloading the specified product in the form of two equal parts. Half (0,025 parts) was injected at 80°C, and half (0,025 part) after 60 minutes at 90°C.

The product was treated in accordance with the procedure that is written in the comparative example 1.

Electrostatic charge measured after a 20-second pneumatic transportation in air flow amounted to 700 volts, the duration of the cooling units (density of 15.0 g/l) was 10 minutes, the sintering was 55% and thermal conductivity of 36.5 mW/MK.

EXAMPLE 4 (comparative 2)

100 parts of styrene and 2.5 parts of carbon black MT 990 UP supplied Concarb having an average diameter of 200-300 nm, the surface area is 30 m2/g ash content is 0.02%, the sulfur content of 60 ppm, thermal losses of 0.1%, load in a closed container with stirring. The mixture is heated with stirring to 70°C for 2 hours. The mixture of carbon black dispersed in styrene, is transferred into another container, in which a pre-mixed with 115 parts of the mass. water, 0.3 part of calcium phosphate C13-08, supplied Budenheim (pre-dispersed in 30 parts of water), 0.30 parts of tert-butylperoxybenzoate supplied by Akzo, with TM Trigonox 21S and 0.25 parts of tert-butylperbenzoate.

Begin heating to 90°C under stirring. When the temperature reached 80°C., load of 0.01 part of sodium metabisulfite, pre-dissolved in 5 parts of water.

After approximately 4 hours at 90°C, with constant stirring, add another 0.6 parts of calcium phosphate, pre-dispersed in 60 parts of water, and then 7 parts of a mixture (70/30 n-pentane and isopentane. The mixture is heated for 4 hours at 125°C, then cooled, and the party unload. The average grain diameter is 1.0 mm, the Granules thus obtained are expanded onto a polymer is then extracted, washed, dried in a stream of air at 23°C, add a 0.02% Pluronic 3100, and then sieved to separate fractions of size from 1 to 1.5 mm.

This fraction was treated in accordance with the procedure described in the previous examples, i.e. added to 0.2% glycerylmonostearate and 0.1% of zinc stearate, and then subjected to foaming. Electrostatic charge measured after a 20-second pneumatic transportation in air flow amounted to 2000 volts, the duration of cooling units was 15 minutes, the sintering was 65%, and thermal conductivity was 34 mW/MK.

EXAMPLE 5

Repeating Example 4, replacing the sodium metabisulfite equal number styrelseledamot sodium, dissolved in 5 parts of water. The average diameter of the granules was 1.3 mm

The product was treated in accordance with the process described above, also separating the fraction size of 1 to 1.5 mm Electrostatic charge amounted to 700 volts, the duration of the cooling block 10 minutes, sintering of 60%, and a thermal conductivity of 32 mW/MK.

EXAMPLE 6

Repeating example 5, introducing soot MT 990 UP in the matrix at 50% of polystyrene dissolved in the monomer. The average diameter of the received pellets amounted to 1.6 mm The final characteristics of the balls and foam products essentially unchanged.

EXAMPLE 7

Repeating example 5, adding to 2% carbon black MT 990 UP to 1% graphite Asbury 5. The product was treated in accordance with the process described above; the electrostatic charge was 500 volts, the duration of cooling units was 15 minutes, the sintering was 50%, and thermal conductivity was 31 mW/MK.

EXAMPLE 8

In the extruder was uploaded to 95.3 parts of molten polystyrene Edistir N1782, 2 parts of carbon black MT990UP, 1 part of graphite Asbury 5, part 1,2 stabilized hexabromocyclododecane (HBCD), supplied by Great Lakes under the trade mark of BRE 5300, 0.4 parts diphenylbutane and 0.5 parts styrelseledamot sodium. After mixing additives into the extruder through a special pipeline to enter downloaded 4% mixture n/isopentanol (80/20), used as a foaming additives.

The polymer containing a foaming additive was subjected to extrusion through the Spinneret holes, cut with knives, was dried and added to 200 parts per million of glycerol and 0.1 wt.%, of metallic stearates and 0.3 wt.%, glycerylmonostearate.

Then the granules were subjected to foaming to obtain a density of 15.0 g/l, and measured electrostatic charge, which amounted to 600 volts. Of the remaining part of the foamed beads were molded blocks, the duration of cooling is equal to 1 minute, sintering at 70%, and thermal conductivity component of 30.5 mW/MK. From blocks cut out the samples, which were tested in accordance with the instructions of DIN 4102. The tests were carried out after conditioning furnace: the product has passed the test of B2.

EXAMPLE 9

Repeating example 8 in accordance with the above procedure, replacing styrelseledamot sodium (0.5 parts) 4 parts of a copolymer of polystyrene and sulfonate sodium content of sulfonate equal to 5 mol%. (Mw 185000)made in accordance with the description provided in U.S. patent 3870841. Electrostatic charge amounted to 700 volts, the duration of the cooling block 7 minutes, sintering of 50%.

1. Granulated expanded onto a composition based vinylaromatic connection, which can be made of foamed beads with low density and low electrostatic charge, including:
A. polymer matrix chosen from:
A1. copolymer containing:
from 90 to 99,995%by weight, at least one vinylaromatic monomer; and
0.005 to 10 wt.% salt or corresponding With1-C4-Olkiluoto ether styrelseledamot acid; or
A2. polymer mixture comprising:
from 92 to 99,995% by weight vinylaromatic (co)polymer; and
0.005 to 8 wt.% product selected from the salts or the corresponding1-C4-Alki the new ether styrelseledamot acid and a copolymer of styrene and salts or the corresponding 1-C4-Olkiluoto ether styrelseledamot acid; and
b. from 1 to 10 wt.% based on the weight of the polymer matrix (a) foaming additives chosen from:
aliphatic or cycloaliphatic hydrocarbons containing from 3 to 6 carbon atoms, or their mixtures, halogenated derivatives of aliphatic hydrocarbons containing from 1 to 3 carbon atoms, and carbon dioxide.

2. The composition according to claim 1, in which salt styrelseledamot acid or salt of a copolymer of styrene and styrelseledamot acid selected from salts of alkali or alkaline earth metal.

3. The composition according to claim 1 or 2, in which the mass-average molecular weight Mw of the copolymer of styrene and a salt or a corresponding1-C4-Olkiluoto ether styrelseledamot acid ranges from 150,000 to 250,000, and the content of sulfonic groups in the form of salts or ester groups distributed along the polymer chain, is in the range from 0.5 to 10 mol.%.

4. The composition according to claim 1, comprising one or more neteploprovodnym agents selected from:
c) from 0.01 to 25 wt.% in the calculation of the weight of the polymer (a) carbon black average particle diameter is from 30 to 1000 nm, the surface area is from 5 to 200 m2/g, a sulfur content ranging from 0.1 to 100 parts per million and iodine number is from 5 to 40 mg/kg;
d) from 0.01 to 10 wt.% based on the weight of polymer clay is a (a) natural, synthetic, foam, expanded onto graphite in powder form, the maximum particle size is from 0.05 to 100 microns;
e) from 0.01 to 10 wt.% in the calculation of the weight of the polymer (a) hydrotalcite or inorganic derivative of silicon.

5. The composition according to claim 1, including flame retardants in amounts of 0.1 to 8%, and the additive synergistic effects in the amount of 0.05 to 2% based on the weight of the (co)polymer.

6. Foamed beads obtained by heating granular compositions according to any one of the preceding paragraphs to the glass transition temperature of the polymer matrix (a)that after the pneumatic transportation performed for 20 s, have an electrostatic charge which is less than 1000 volts.

7. Foam products that can be obtained by sintering foamed beads according to claim 6, the density of which is from 5 to 50 g/l, and thermal conductivity ranges from 25 to 50 mW/MK.

8. A method of manufacturing expanded onto granular compositions based vinylaromatic compound according to any one of claims 1 to 5, comprising the polymerization in aqueous suspension of one or more vinylaromatic monomer, possibly in combination with at least one polymerized by the co monomer in an amount up to 50 wt.%, it is possible in the presence of the filler, vkljuchajuwih the one or more additives (C)-(e), the above, and in the presence of a radical initiator, salt or1-C4-Olkiluoto ether styrelseledamot acid and/or of a copolymer of styrene and salts or the corresponding1-C4-Olkiluoto ether styrelseledamot acid and foaming additives (b), added before, during or after the polymerization.

9. Continuous manufacture in the mass of expanded onto granular compositions based vinylaromatic compound according to any one of claims 1 to 5, comprising the following sequence of steps:
i) adding salt or corresponding With1-C4-Olkiluoto ether styrelseledamot acid or a copolymer of styrene and salts or the corresponding1-C4-Olkiluoto ether styrelseledamot acid and possibly additives (C)-(e)described above, granular or already melted vinylaromatic (co)polymer, the mass-average molecular weight Mw is from 50000 to 300000;
ii) perhaps the heat vinylaromatic polymer to a temperature greater than the corresponding melting temperature;
iii) the introduction of a foaming additive (b) and other possibly present additives such as flame retardants, in the molten polymer before it is extruded through the die plate;
iv) mixing the thus obtained poly the agreement of composition by means of static or dynamic mixing elements; and
v) granulating the thus obtained composition in the device that includes the die plate, the camera cutting system for cutting.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: composition contains from 30 wt % to less than 50 wt % propylene-alpha-olefin copolymer and from more than 50 wt % to 70 wt % styrene block-copolymer. The propylene-alpha-olefin copolymer has at least 70 wt % links formed from propylene, and from 10 to 25 wt % links formed from C2- or C4-C10-alpha-olefin and has heat of fusion less than 37 J/g and melt flow index from 0.1 to 100 g/10 min. The composition has modulus of elasticity in tension less than 20 MPa, ultimate tensile stress of at least 5 MPa and elongation at failure of at least 900% and low relative instantaneous shrinkage.

EFFECT: composition has good physical properties such as elasticity and flexibility, and can also be easily processed using traditional equipment for processing polyolefins.

21 cl, 8 dwg, 2 tbl

FIELD: chemistry.

SUBSTANCE: described is a dispersion composition which is in form of an oil based suspension containing the following in wt % (per total weight of the dispersion composition): plant oil 50-90, UV-light absorber 0.001-0.1, bactericidal agent 0.001-0.1, ultrahigh molecular α-olefin-styrene polymer which lowers liquid flow resistance 5-40 and lubricant 2-25. To obtain the dispersion composition, the UV-light absorber and bactericidal agent are added to plant oil and a first mixture is obtained. The mixture is stirred to homogeneous state for use as a dispersant. The lubricant is then added to the polymer and a second mixture is obtained. The second mixture is crushed at temperature equal to lower than -90°C. The obtained powder is added to the dispersant and the mixture is stirred to obtain a suspension.

EFFECT: obtaining high content of dry composition substance, improved stability of the composition with the polymer.

14 cl, 7 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: elastomeric polymer moulding composition can be used for making capacitor insulating layers, medical devices and fuel element seals. An elastomeric polymer moulding composition is described, which contains an elastomeric polymer, which can be cured by peroxide, is completely soluble (i.e. does not contain gel), does not contain divinyl benzene and extracting impurities. Material made based on the said composition is safe during production and use. The composition is an alternative to XL-10000 based compositions (butyl rubber, partially cross linked with divinyl benzene).

EFFECT: increased effectiveness of the composition.

7 cl, 1 tbl, 5 ex, 2 dwg

FIELD: chemistry.

SUBSTANCE: described is a foaming polystyrene composition in form of granules, containing: (1) 100 pts. wt polystyrene, preferably with average molecular weight Mw ranging from 150000 to 400000 Da, (2) 3 to 20 pts. wt of foaming agent, which is water or a mixture of water and at least one other foaming agent, for example, hydrocarbon, (3) 0.1 to 12 pts. wt of at least one modified clay, with at least a partial lipophilic property. Also described is a method of producing a foaming polystyrene composition in form of granules, which involves polymerisation of styrene and optionally at least one comonomer, which is brought into an aqueous suspension and mixing by reacting 100 pts. wt styrene and optionally a comonomer or comonomers with at least one radical polymerisation initiator and at least one suspension agent. This method is characterised by that, the reaction process is also carried out in the presence of (a) 4 to 23 pts. wt of foaming agent, which is water or a mixture of water and at least one other foaming agent, for example hydrocarbon foaming agent, and (b) 0.5 to 12 pts. wt of at least one modified clay, with at least a partial lipophilic property. Described also is use of the said foaming polystyrene composition in form of granules in making moulded and foamed objects, preferably with bulk density ranging from 5 to 50 kg/m3, preferably from 5 to 30 kg/m3.

EFFECT: increased effectiveness of the composition.

17 cl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention refers to technology of hull-kernel particles which can be used to modify impact strength of poly(met)akrylate moulding compositions. According to method a) water and emulsifier b) are added with 25.0 to 45.0 mass fractions of the first composition containing A) alkylmetacrylate 50.0 to 99.9 mass fractions, B) alkylakrylate 0.0 to 40 mass fractions, C) cohesive monomers 0.1 to 10.0 mass fractions, and D) styrene monomers 0.0 to 8.0 mass fractions, and polymerised, c) added 35.0 to 55.0 mass fractions of the second composition containing E) (met)akrylates 80.0 to 100.0 mass fractions, F) cohesive monomers 0.05 to 10.0 mass fractions, and G) styrene monomers 0.0 to 20.0 mass fractions, and polymerised, d) added 10.0 to 30.0 mass fractions of the third composition containing H) alkylmetakrylates 50.0 to 100.0 mass fractions I) alkylakrylates 0.0 to 40.0 mass fractions and J) styrene monomers 0.0 to 10.0 mass fractions, and polymerised. Method is distinctive in that e) each polymerisation cycle is performed at temperature within 60 to 90°C and f) fractional content of all substances is selected so that total weight A) to J) per total weight of aqueous dispersion exceeds 50.0 mass %. Presented method is used to produce impact strength modifiers minimum content of which provides sufficient improvement of impact strength when tested on cut moulding composition samples, not degrading at the same time other important properties of moulding composition.

EFFECT: production of impact strength modifiers minimum content of which provides sufficient improvement of impact strength when tested on cut moulding composition samples, not degrading at the same time other important properties of moulding composition.

17 cl, 8 tbl

FIELD: manufacture of rubber articles on base of butadiene styrene rubber; manufacture of ebonite battery monoblocks.

SUBSTANCE: ebonite mix on base of butadiene styrene rubber contains reclaim, sulfur, diphenyl guanidine, magnesium oxide, kaolin, paraffin, phthalic anhydride with synthetic fatty acid, soap-surfactant, petrolatum oil and filler. Used as filler is ion-exchange resin -cationite KY-2 ground preliminarily to fraction of 1-40 mcm and taken in the amount of 180-360 parts by mass.

EFFECT: improved physico-mechanical parameters of vulcanizers; reduction of deficiency of rubber phase in ebonite; utilization of used ion-exchange resins.

2 tbl

FIELD: textile industry.

SUBSTANCE: invention relates to manufacture of nonwoven fabrics possessing sorption ability and can be used in making various-modification filters suitable for cleaning liquid media. Impregnating composition contains blend constituted by latexes based on rigid chain- and flexible chain-nature copolymers taken at ratio between 95:5 and 50:5, respectively, solid filler, and water, wherein ratio of all components is expressed as 1:(2.5-3.0):1. Composition is obtained by mixing and vibration action in resonance mode at frequency 50-150 Hz and action time 5-15 min.

EFFECT: increased aggregative stability of composition and physicomechanical properties of material with no additional components added.

2 cl, 2 tbl, 6 ex

The invention relates to compositions for bonding, sealing and performance of coatings on the basis of a copolymer of styrene, which is suitable as a binder in obtaining adhesives, coatings and masses jointing

The invention relates to thermoplastic molding mass containing 20-90 wt.h

The invention relates to thermoplastic compositions based on mixtures of polymers and copolymers of styrene

FIELD: chemistry.

SUBSTANCE: described is an activator of adhesion of ink to a substrate, containing a product of reaction of (a) a polymer solution or synthetic resin, (b) sulphonic acid or derivative thereof and (c) a metal compound selected from a group consisting of a metal halide, metal alkoxide, metal halide-alkoxide or a condensed metal alkoxide, where the metal is titanium or zirconium. The amount of sulphonic acid or sulphonic acid salt (b) and metal compound (c) corresponds to molar ratio of SO3X, where X is a H atom or a base residue, to Ti and Zr atoms ranging from 0.25:1 to 2:1. The invention also describes printing ink containing said adhesion activator.

EFFECT: reduced yellowing and smell of ink compared to ink which contains titanium acetyl acetonate as an adhesion activator while preserving effectiveness of the adhesion activator.

22 cl, 4 tbl, 15 ex

FIELD: chemistry.

SUBSTANCE: composition contains a mixture of polyamide, where the ratio of terminal amino groups in the terminal carboxyl groups of the polyamide polymer is less than 0.2, polyester which is capable of crystallising and an interfacial tension reducing agent.

EFFECT: composition enables to obtain dispersed particles with average size of less than 200 nm when stretched, good colour composition which will not exhibit high increase in turbidity with increase in the amount of dispersed material, or has acceptable turbidity during production, and has good colour, especially in the absence of cobalt.

7 cl, 3 tbl, 18 ex, 8 dwg

FIELD: chemistry.

SUBSTANCE: wall has a layer which contains a polyamide dispersed in a crystallisable polyester and an agent which reduces interphase tension, selected from a group comprising lithium sulphoisophthlate and lithium sulphobenzoic acid. The polyamide contains a product of reacting aminocaproic acid with itself, or a product of reacting A-D, where A is a residue of adipinic, isophthalic, terephthalic, 1,4-cyclohexane dicarboxylic, resorcinol dicarboxylic or naphthalene dicarboxylic acid or mixtures thereof, and D is a residue of m-xylenediamine, n-xylenediamine, hexamethylenediamine, ethylenediamine or 1,4-cyclohexane dimethylamine or mixtures thereof. The polyester contains 85% links obtained from terephthalic acid or dimethyl ester of terephthalic acid. The wall does not contain cobalt compounds.

EFFECT: invention enables to obtain packed articles with high interphase bonding strength and low turbidity.

38 cl, 8 tbl, 5 dwg, 9 ex

FIELD: chemistry.

SUBSTANCE: invention relates to an improved method of making heat stabilisers for chlorine-containing hydrocarbons, specifically to a method of obtaining stearates of bivalent metals used in polymer compositions based on chlorine-containing polymers such as polyvinyl chloride, vinylchloride copolymers, chlorinated polyvinylchloride etc. The method of producing heat stabilisers of chlorine-containing hydrocarbons involves reacting stearic acid and oxides or hydroxides of calcium, zinc, barium, magnesium or lead in form of separate of mixed salts of stearic acid in a solid phase with intense stirring. The process is carried out in the presence of sodium hydroxide or potassium hydroxide in amount of 0.05-0.15% of the mass of stearic acid and propylene carbonate or dimethylformamide, or hexamethapol or sulfolane or dimethylsulfoxide in amount of 0.005-0.05% of the mass of stearic acid at 40-95°C in a double-screw reactor. Catalysts of the process - sodium hydroxide or potassium hydroxide and propylene carbonate, or dimethylformamide, hexamethapol, sulfolane or dimethylsulfoxide facilitate considerable increase in activity of the surface of the substrate and, as a result, increase in the rate of the process and obtaining products in form of a homogeneous highly dispersed powder and prevention of secondary oligomerisation of the end product.

EFFECT: use of the invention enables design of a continuous highly efficient method of producing heat stabilisers of chlorine-containing polymers with high heat stabilising capacity due to formation of products in form a homogeneous highly dispersed powder.

2 cl, 4 tbl, 15 ex

FIELD: chemistry.

SUBSTANCE: method of polyvinylchloride stabilisation involves adding thermostabilising amount of mix including at least A) 0.01 to 10 weight parts of one polyalkylene glycol selected out of group including tetraethylene glycol, tetraporopylene glycol and tetraglicerine, per 100 weight parts of polyvinylchloride, and B) 0.001 to 5 weight parts of at least one metal chloride per 100 weight parts of polyvinylchloride, to indicated polymer. Additionally the mix includes at least one more additive or stabiliser. Heat-resistant polymer composition includes polyvinylchloride and thermostabilising amount of mix: A) 0.01 to 10 weight parts of at least one polyalkylene glycol of the general formula per 100 weight parts of polyvinylchloride, where: R1 and R2 are independently selected out of group including hydrogen and alkyl; R3 and R4 are independently selected out of group including hydrogen and alkyl; n is 4; B) 0.01 to 5 weight parts of at least one metal chloride per 100 weight parts of polyvinylchloride.

EFFECT: application of nitrogen-free thermostabilising mix with high efficiency, preventing heavy metal ion presence in the mix.

14 cl, 11 ex

FIELD: chemistry.

SUBSTANCE: invention relates to technology of obtaining thermoplastic films which are able to retard fire. Film contains approximately 95 wt % or more of thermoplastic resin and from approximately 0.001 wt % to approximately 5.0 wt % of fluoroalkyl sulphonate salt with respect to total film weight and has inflammability index VTM-0, determined as rating in accordance with UL-94. Thermoplastic resin is selected from group, which includes polyimide, polysulphone and copolymers, products of reaction and combination including at least one of said thermoplastic resins.

EFFECT: ensuring shorter extinction time of film.

26 cl, 6 tbl,17 ex, 3 dwg

FIELD: chemistry.

SUBSTANCE: stabilising system includes, at least, (a) one perfluoralkansulfonate salt and (b), at least, one or several indoles and/or ureas and/or alkanoamines and/or aminouracils, in which indoles have general formula (I): ureas have general formula and alkanoalamines have general formula (III) which is used in compositions, containing chlorine-containing polymers, in particular, polyvinylchloride.

EFFECT: stabilisation of chlorine-containing polymers from thermally induced degradation.

13 cl, 4 tbl

FIELD: organic chemistry, polymers, chemical technology.

SUBSTANCE: invention relates to a composition used for cross-linking and stabilizing a polymer containing hydrolysable silane groups wherein this composition comprises sulfonic acid as a catalyst for condensation of silanols. Invention describes using the composition comprising sulfonic acid as a catalyst for condensation of silanols wherein sulfonic acid represents a compound of the formula (III): ArSO3H (III) or its precursor wherein Ar means hydrocarbyl-substituted aryl group, and compound comprises in total from 14 to 28 carbon atoms and wherein a compound used as a stabilizing agent represents neutral or acidic compound, it doesn't comprise ester groups and represents compound described by the formula (I):

wherein R means unsubstituted or substituted aliphatic or aromatic hydrocarbyl radical that can comprise heteroatoms; R' means hydrocarbyl radical; R'' means hydrocarbyl radical, and R' and/or R'' mean a bulky radical; X1, X2 and X3 are similar or different and represent hydrogen atom (H) of hydroxyl group (-OH) wherein at least X1, X2 or X3 mean -OH; n is in the range from 1 to 4. The composition is used for cross-linking and stabilizing a polymer comprising hydrolysable silane groups. Invention provides enhancing resistance of polymer against aging, absence of mercaptan or other odor and formation of cracks in material.

EFFECT: valuable properties of composition.

24 cl, 4 tbl

The invention relates to suitable for re-dispersion in water pulverulent composition containing at least one naphthalenesulfonate General formula I, in which X and X' denote IT or NH2Y denotes SO3-M+, where M is an alkali metal; x=0,1; x'=0.1 and x+x'=1; y=0,1; y'=0.1 and y+y'=1, and at least one ethyleneamine monomer, both of the above monomer to form at least one water-insoluble film-forming polymer

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing an asphalt modifier composition, involving: obtaining a triblock copolymer via block copolymerisation of a vinyl aromatic hydrocarbon and a diene compound with conjugated double bonds as a result of anionic polymerisation using an organic anionic initiator in a reactor, having a hydrocarbon solvent, where the step of producing the block copolymer involves: formation of a vinyl aromatic block by feeding a vinyl aromatic hydrocarbon into a reactor, having a hydrocarbon solvent, and then feeding an organic anionic initiator; forming a diene block with conjugated double bonds, bonded to the end of the vinyl aromatic block, by feeding a diene compound with conjugated double bonds into the reactor; feeding a functional additive, selected from a group consisting of compounds of formula 1, into the reactor; and obtaining an asphalt modifier composition, including a block copolymer and a functional additive, by removing a hydrocarbon solvent, Formula 1 ; in formula 1, the sum n+m-m' is equal to 35, n is an integer from 1 to 5, each of m and m' is an integer equal to at least 1, and X is an ester group [-C(=O)O-]. The invention also relates to a method of producing the asphalt modifier composition and asphalt composition.

EFFECT: asphalt modifier composition dissolves fast in asphalt without significantly reducing softening temperature of asphalt, which enables to obtain a homogeneous asphalt composition and increase effectiveness of the asphalt composition.

17 cl, 1 tbl, 4 ex

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