Thermoplastic elastomer material, containing vulcanised rubber in crushed state

FIELD: chemistry.

SUBSTANCE: thermoplastic elastomer material contains: (a) from 10 to 100 wt % of at least one thermoplastic elastomer based on styrene; (b) from 0 to 90 wt % of at least one thermoplastic homopolymer or copolymer of α-olefin, different from (a); where amount of (a)+(b) equals 100; (c) from 2 to 90 pts. wt of vulcanised rubber in crushed state; (d) from 0.01 to 10 pts. wt of at least one coupling agent which contains at least one unsaturated ethylene; where amounts (c) and (d) are expressed in ratio to 100 pts. wt of (a)+(b).

EFFECT: improved mechanical properties, specifically breaking stress and breaking elongation, increased wear resistance.

60 cl, 6 tbl, 6 ex

 

DESCRIPTION

The level of technology

The present invention relates to a thermoplastic elastomeric material comprising vulkanisierung rubber in its powdered form.

In particular, the present invention relates to a thermoplastic elastomeric material comprising vulkanisierung rubber in powdered form, and at least one thermoplastic elastomer based on styrene.

In addition, the present invention relates to a finished product comprising the specified thermoplastic elastomeric material.

Prototype

The growing production of industrial rubber products has led to the accumulation of large quantities of waste rubber, which are usually removed in specially designed landfills, the main disadvantages are environmental pollution, and the need for large specially designed for storage of these wastes.

To reduce the volume of waste and produce useful by-product in the technique known depolymerization of waste rubber, such as tires. For re-use of waste rubber rubber products can also be devulcanization.

In addition to these methods in the technique of the conventional grind rubber waste and to use the thus obtained powdered particles is. These crushed particles can then be mixed with thermoplastic polymer material, in order to obtain end products that can be applied in many fields.

For example, U.S. Patent 4970043 relates to a method of making a plastic product from waste materials, including shredded rubber and binder framework including a thermoplastic polymer, such as, for example, butadiene-styrene block copolymer. Practically homogeneous mixture of ground rubber and binder basis in the ratio of 1:1 process with appropriate pressure and temperature to produce pseudostable plastic product. Pseudocamellia plastic product is then subjected to or maintained at an appropriate pressure to the formation of stable plastic product. Indicates that stable plastic product usually has low porosity and constant properties.

U.S. patent 5514721 relates to a method for producing a recyclable thermoplastic composition comprising a thermoplastic material and particles of vulcanized rubber, and the method includes the stage of the first melting thermoplastic material to form a heated mass; adding to the said heated mass deflocculating reagent is an emulsifier for particles of vulcanized rubber, moreover, the specified deflocculate reagent selected from the group consisting of organic and inorganic acids and basic deflocculates reagents; adding particles of vulcanized rubber to a specified weight; heating and mixing the resulting mass at a high value of the shearing forces sufficient to reduce the particle size of the rubber particles in the emulsification and swelling of their surface; neutralizing the mixture to its isoelectric point; and cooling and extraction of the mass. thermoplastic material may be selected from thermoplastic elastomers (for example, a block copolymer of styrene such as styrene-isoprene or styrene-butadiene copolymers). May be formed from the resulting thermoplastic composition having properties comparable to or better than the vulcanized rubber, and has excellent resistance to chemicals and resistance to weathering.

U.S. patent 6262175 relates to a thermoplastic composition comprising in percent by weight of the total weight of the composition: from 5% to 90% vulcanized rubber crumb; from 5% to 60% polyolefin; from 2% to 30% of unvulcanized rubber compound or a thermoplastic elastomer based on styrene; and from 2% to 30% of a vinyl polymer selected from vinyl homopolymers, copolym the ditch and mixtures thereof. The polyolefin is a solid, high-molecular homopolymer or copolymer of polyolefin or mixtures thereof. The preferred polyolefin is polyethylene, polypropylene or a copolymer of ethylene and propylene. Thermoplastic elastomer based on styrene may be selected from styrene-butadiene-styrene block copolymers. Indicated that the above-mentioned thermoplastic composition has excellent physical properties, including excellent values for the relative elongation at break and tensile strength tearing.

However, the applicant noted that the addition of crushed particles of vulcanized rubber to thermoplastic elastomers based on styrene, such as, for example, styrene block copolymers, leads to a significant deterioration of the mechanical properties of the obtained thermoplastic elastomeric material.

In particular, the applicant noted that the lack of compatibility between thermoplastic elastomers based on styrene and crushed particles of the vulcanized rubber has a negative impact on the mechanical properties, in particular on the value of indicators for breaking stress and elongation at break, and abrasion resistance of the obtained thermoplastic elastomeric material.

The invention

The applicant has found that it can be oleti the above-mentioned disadvantages by using, at least one sizing having at least one ethyleneamines. The specified sizing improves the compatibility between thermoplastic elastomers based on styrene and crushed particles of vulcanized rubber and allows to obtain a thermoplastic elastomer material having good mechanical properties, in particular the values for the breaking stress and elongation at break. In addition, thermoplastic elastomeric material shows improved resistance to abrasion. Furthermore, thermoplastic elastomeric material has good performance for ultimate strength in static bending strength and resistance to tear. In addition, there is no negative effect on the melt flow index (MFI) of the specified thermoplastic elastomer material.

According to the first aspect of the present invention relates to a thermoplastic elastomeric material, including:

(a) from 10% by mass to 100% by weight, preferably from 20 mass% to 80 mass% of at least one thermoplastic elastomer based on styrene;

(b) from 0% by mass to 90% by weight, preferably from 20 mass% to 80 mass% of at least one thermoplastic homopolymer or copolymer of α-olefin different from (a);

the being the m number (a)+(b) is 100;

(c) from 2 parts by weight to 90 parts by weight, preferably from 5 parts by weight to 40 parts by weight, the vulcanized rubber in powdered form;

(d) from 0.01 parts by mass to 10 parts by weight, preferably from 0.05 parts by mass to 5 parts by weight, of at least one sizing containing at least one ethyleneamines;

moreover, the number (c) and (d) are expressed in relation to 100 parts by weight of (a)+(b).

According to one preferred variant implementation of the specified thermoplastic elastomeric material may further include (e)at least one aromatic monocarboxylic or dicarboxylic acid or its derivative.

According to another preferred variant implementation, the specified thermoplastic elastomeric material may further include (f)at least one inorganic filler.

According to another preferred variant implementation of the specified thermoplastic elastomeric material may further include (g)at least one syndiotactic 1,2-polybutadiene.

According to one preferred variant implementation of thermoplastic elastomer based on styrene (a) includes at least two terminal poly(monovinylacetylene hydrocarbon) block and at least dinnocenzo poly(diene with conjugated double bonds) block and/or poly(aliphatic α-olefin) block.

Preferably, a thermoplastic elastomer based on styrene (a) could be selected, for example, from block copolymers having the following formula: A(BA)mor A(BA')m'or (AB)nX, or (AB)pX(A'b')qor (AB)rX(B')swhere each of A and A' independently represent a polymer block comprising monolinolein aromatic monomer; B, B' and B ' independently represent a polymer block comprising a monomer of a conjugated diene and/or a monomer aliphatic α-olefin; X represents a polyfunctional bridging fragment; n and r represent an integer not less than 2, preferably from 2 to 20 inclusive, more preferably from 2 to 8 inclusive; m and m' represent an integer ≥ 1, preferably from 1 to 20 inclusive, more preferably from 1 to 8 inclusive; p, q and s represent an integer ≥ 1, preferably from 1 to 20 inclusive, more preferably from 1 to 8 inclusive.

Preferably, monotinicity aromatic monomer units A and A' you had to choose, for example, of: styrene, alkyl substituted styrene, alkoxy-substituted styrene, vinylnaphthalene, alkyl substituted vinylnaphthalene, vinylsilane, alkyl substituted vinylsilane or mixtures thereof. Styrene or alkyl substituted styrene are preferred, styrene is preferable.

And kilenyi or CNS substituents may typically include from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms. The number of alkyl or CNS of the substituents on the mole, if present, may vary from 1 to 3, and the preferred number is 1. Comonomers, if present, can be selected from (CI)of olefins and other compounds capable of copolymerization with styrene.

Preferably, the monomer of a conjugated diene blocks B, B' and B" you can choose, for example, conjugated dienes containing from 4 to 24, preferably from 3 to 12, more preferably 4 to 6, carbon atoms, such as, for example, 1,3-butadiene, isoprene, 2-ethyl-1,3-butadiene, 2,3-dimethyl-1,3-butadiene, 2-phenyl-1,3-butadiene, 1,3-pentadiene, methylpentadiene, 3-ethyl-1,3-pentadiene, 2,4-hexadiene, 3,4-dimethyl-1,3-hexadiene, 4,5-diethyl-1,3-octadiene, piperylene or mixtures thereof. 1,3-Butadiene and isoprene are preferred. Comonomers, if present, can be selected from vinylaromatic monomers and other compounds capable of copolymerization with the conjugated diene monomers.

Preferably, aliphatic α-olefin monomer can contain from 2 to 12, more preferably from 2 to 4 carbon atoms and can be selected, for example, from ethylene, propylene or mixtures thereof.

Preferably, A and A' blocks represented poly(styrene) blocks and B, B' and B" blocks represented poly(booted Inouye) blocks, poly(isoprene) polybutylene/polyethylene copolymer blocks, polyethylene/polypropylene copolymer blocks, or isoprene/butadiene copolymer block.

Polyfunctional bridging fragments, which can be used include those that are well-known in the technique.

Examples of suitable polyfunctional bridging fragments, which can be successfully used in these block copolymers include from 2 to 8, preferably from 2 to 6, more preferably 2, 3 or 4 functional groups.

These block copolymers can be obtained by anionic polymerization initiator based on an alkali metal, such as s-utility, disclosed, for example, in U.S. Patents 4764572, 3231635, 3700633 and 5194530.

These block copolymers can be selectively gidrirovanny, usually to a residual ethyleneamines not more than 20%, more preferably not more than 5%, even more preferably not more than 2% of their original unsaturation content prior to hydrogenation. The hydrogenation can be carried out as disclosed, for example, in reissued U.S. Patent 27145 or in U.S. Patent 5039755, 5299464 and 3595942.

Preferably, the blocks A and A' had srednevekovoy molecular weight in the range from 3000 g/mol to 125,000 g/mol, more preferably from 5000 g/mol to 60,000 g/mol.

Preferably, the blocks B, B' and B" have idrivesafely molecular weight in the range of from 10,000 g/mol to 300,000 g/mol, more preferably in the range of 30,000 g/mol to 150000 g/mol.

Preferably, the total srednevekovaja molecular weight of the block copolymer was in the range from 25000 to 500000, more preferably from about 35,000 to 400000.

Srednevekovaja molecular weight can be determined known in the art methods, such as, for example, helpanimals chromatography (GPC) using a calibration polystyrene standards, in accordance with ASTM standard D3536-91.

The number monovinylacetylene blocks is usually from 8% by mass to 75% by weight, preferably from 20% by mass to 60% by weight of the total weight of block copolymer. Preferably, the block copolymer contains from 25% by weight to 92% by weight, more preferably from 40 mass% to 80% of the conjugated diene unit and/or aliphatic α-olefin block from the total mass of the block copolymer.

The specified block copolymer has a three-block structure and can be linear or radial type or any combination of these.

Preferably, a thermoplastic elastomer based on styrene (a) could be selected, for example, of the following three-block copolymers: styrene-butadiene-styrene (S-B-S), Sterol-isoprene-styrene (S-I-S), styrene-ethylene/butene-styrene (S-EB-S), or mixtures thereof.

Examples of thermoplastic elastomer based on styrene (a), which can is t to be used in the present invention and which are currently commercially available, are the products Kraton®(Shell Chemical), Calprene®(Repsol); Europrene®(Polimeri Europa); Vector®(Dexco).

As for thermoplastic α-olefin homopolymer or copolymer (b), different from (a), the term "α-olefin" generally means an aliphatic or aromatic α-olefin of the formula CH2=CH-R, where R represents a hydrogen atom, a linear or branched alkyl group containing from 1 to 12 carbon atoms, aryl group having 6 to 14 carbon atoms.

Preferably, aliphatic α-olefin you could choose, for example, from ethylene, propylene, 1-butene, isoprene, isobutylene, 1-pentene, 1-hexene, 3-methyl-1-butene, 3-methyl-1-pentene, 4-methyl-1-pentene, 4-methyl-1-hexene, 4,4-dimethyl-1-hexene, 4,4-dimethyl-1-pentene, 4-ethyl-1-hexene, 3-ethyl-1-hexene, 1-octene, 1-mission 1-dodecene, 1-tetradecene, 1-hexadecene, 1 octadecene, 1 eicosene or mixtures thereof. Of them, preferred are ethylene, propylene, 1-butene, 1-hexene, 1-octene or mixtures thereof.

Preferably, the aromatic α-olefins you could choose, for example, from styrene, α-methylstyrene or mixtures thereof.

Preferably, a thermoplastic homopolymer or copolymer of α-olefin (b), which can be used in the present invention, it was possible to choose, for example, of:

the homopolymers of propylene or copolymers of propylene with atilano and/or, at least one α-olefin having from 4 to 12 carbon atoms, with the total content of ethylene and/or α-olefin is less than 10% by moles;

the homopolymers of ethylene or copolymers of ethylene with at least one α-olefin having from 4 to 12 carbon atoms, optionally, at least one polirom;

- of polymers of styrene, such as, for example, homopolymers of styrene; copolymers of styrene with at least one C1-C4alkylthiol or at least one natural or synthetic elastomer, such as, for example, polybutadiene, polyisoprene, butyl rubber, ethylene/propylene/diene copolymer (EPDM), ethylene/propylene copolymers (EPR), natural rubber, epichlorohydrin;

copolymers of ethylene, at least one ethyleneamines ether selected from alkylacrylate, alkyl methacrylates and vinylcarbazole, in which an alkyl group, linear or branched, may have from 1 to 8, preferably from 1 to 4, carbon atoms, while the carboxylate group, a linear or branched, may have from 2 to 8, preferably from 2 to 5 carbon atoms; and in which Ethylenediamine ether is typically present in amount of from 0.1% to 80% by weight, preferably from 0.5% to 50% by weight of the total weight of the copolymer.

Examples of the ethylene homopolymers or copolymers of this is Lena, at least one α-olefin having from 4 to 12 carbon atoms, which can be used in the present invention as homopolymer or copolymer of α-olefin (b), are: low density polyethylene (LDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), linear low density polyethylene (LLDPE), polyethylene, ultra low density (ULDPE) or mixtures thereof.

Preferably, copolymers of ethylene, at least one α-olefin having from 4 to 12 carbon atoms, it was possible to choose, for example, of:

elastomeric copolymers having the following monomer composition: 35 mol.% - 90 mol.% ethylene; 10 mol.% - 65 mol.% aliphatic α-olefin, preferably propylene; 0 mol.% - 10 mol.% polyene, preferably diene, more preferably 1,4-hexadiene or 5-ethylene-2-norbornene (e.g., EPR and EPDM rubber);

copolymers having the following monomer composition: 75 mol.% - 97 mol.%, preferably 90 mol.% - 95 mol.%, ethylene; 3 mol.% - 25 mol.%, preferably 5 mol.% - 10 mol.%, aliphatic α-olefin; 0 mol.% - 5 mol.%, preferably 0 mol.% - 2 mol.%, polyene, preferably - diene (for example, ethylene/1-octene copolymers such as the products Engage®DuPont-Dow Elastomers).

Examples of polymers of styrene, different from (a), which can be used in the present from which Britanie, are syndiotactic polystyrene, irregular polystyrene, stereoregular polystyrene, styrene-methylsterol copolymer, styrene-isoprene copolymer or a styrene-butadiene copolymer, styrene-ethylene/propylene (S-EP) or styrene-ethylene/butene (S-EB) diblock copolymers; styrene-butadiene or styrene-isoprene branched copolymers; or mixtures thereof.

As for copolymers of ethylene, at least one ethyleneamines ether, examples of acrylates or methacrylates are: acrylate, methyl acrylate, methyl methacrylate, t-butyl acrylate, n-butyl acrylate, n-butylmethacrylate, 2-ethyl hexyl acrylate, or a mixture thereof.

Examples of vinylcarbazole are: vinyl acetate, finalproject, vinylboronate or mixtures thereof.

Examples of copolymers of ethylene, at least one ethyleneamines ether, which can be used in the present invention are: ethylene/vinyl acetate copolymer (EVA), ethylene/acrylate copolymer (EEA), ethylene/butyl acrylate copolymer (EBA), or a mixture thereof.

The specified thermoplastic homopolymer or copolymer of α-olefin (b) can be extracted from the waste, such as, for example, industrial waste, used in agriculture film, used bottles or containers.

Vulcanized rubber in powdered form (c), which can be used in the present invention,can be obtained by grinding or crushing any source vulcanized rubber compound, such as, for example, tires, roofing, hoses, gaskets, and other similar devices, and is preferably obtained from regenerated or discarded tires, using the traditional method. For example, vulkanisierung rubber in powdered form can be obtained by mechanical grinding at ambient temperature or in the presence of cryogenic coolant (i.e. liquid nitrogen). Any steel or other metal inclusions must be removed from the milled tires to use. Usually it is preferable that the fibrous material, such as, for example, fiber tire cord were removed from the milled rubber, using traditional methods of separation.

According to one preferred variant implementation of the vulcanized rubber in a crushed form (c), which can be used in the present invention, is in the form of powder or granules having a particle size of not more than 10 mm, preferably not more than 5 mm.

According to a more preferred variant implementation of the vulcanized rubber in a crushed form (c), which can be used in the present invention has a particle size of not more than 0.5 mm, preferably not more than 0.2 mm, more preferably not more than 0.1 mm

According to one preferred variant implementation, mechanizirovannaya rubber in powdered form (c) may include, at least one crosslinked diene elastomeric polymer or copolymer, which may be of natural origin or may be obtained by polymerization in solution, emulsion polymerization or gas-phase polymerization of one or more paired diolefins, optionally mixed with at least one co monomer selected from monofilament and/or polar comonomers in an amount of not more than 60 mass%.

Related diolefine typically contain from 4 to 12, preferably from 4 to 8 carbon atoms, and may be selected, for example, from the group comprising: 1,3-butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, 1,3-pentadiene, 1,3-hexadiene, 3-butyl-1,3-octadiene, 2-phenyl-1,3-butadiene or mixtures thereof. Monolinolein, which may not necessarily be used as comonomers, typically contain from 8 to 20, preferably from 8 to 12 carbon atoms and can be selected, for example, of: styrene; 1-vinylnaphthalene; 2 - vinylnaphthalene; various alkyl, cycloalkyl, aryl, alcylaryl or arylalkyl derivatives of styrene, such as, for example, α-methylsterols, 3-methylsterol, 4-propellera, 4-cyclohexylstyrene, 4-dodecylthio, 2-ethyl-4-benzylthio, 4-p-cholersterol, 4-(4-phenylbutyl)styrene or mixtures thereof.

Polar comonomers, which may not necessarily be used can be selected, for example, from: wines is pyridine, vinylpyridine, esters of acrylic acid and alkylacrylate acids, NITRILES, or mixtures thereof, such as, for example, methyl acrylate, acrylate, methyl methacrylate, ethyl methacrylate, Acrylonitrile or mixtures thereof.

Preferably crosslinked diene elastomeric polymer or copolymer can choose, for example, from: CIS-1,4-polyisoprene (natural or synthetic, preferably natural rubber), 3,4-polyisoprene, polybutadiene (in particular polybutadiene with a high 1,4-CIS content), optionally halogenated isoprene/isobutene copolymers, 1,3-butadiene/Acrylonitrile copolymers, styrene/2,3-butadiene copolymers, styrene/isoprene/1,3-butadiene copolymers, styrene/1,3-butadiene/Acrylonitrile copolymers, or mixtures thereof.

Alternatively, the vulcanized rubber in a crushed form (c) may further include at least one crosslinked elastomeric polymer of one or more monoolefins with the olefinic co monomer or its derivatives. Monoolefinic can be selected, for example, from ethylene and α-olefins generally containing from 3 to 12 carbon atoms, such as, for example, propylene, 1-butene, 1-penten, 1-hexene, 1-octene or mixtures thereof. Preferred are the following: copolymers of ethylene and α-olefin, optionally with a diene; homopolymers of isobutene or its copolymers with a small amount of que is a, which is optionally at least partially is halogenated. Optional present Dien usually contains from 4 to 20 carbon atoms and is preferably selected from: 1,3-butadiene, isoprene, 1,4-hexadiene, 1,4-cyclohexadiene, 5-ethylidene-2-norbornene, 5-methylene-2-norbornene, vinylnorbornene or mixtures thereof. Among them, particularly preferred are the following: ethylene/propylene copolymers (EPR) or ethylene/propylene/diene copolymers (EPDM); polyisobutene; butylketone; halogenleuchte, in particular chlorobutyl or bromatology; or mixtures thereof.

According to one preferred variant implementation of the sizing containing at least one ethyleneamines (d)may be selected from well-known in the art of coupling agents, such as, for example: connection of a silane containing at least one ethyleneamines and at least one capable of hydrolysis group; epoxides containing at least one ethyleneamines; monocarboxylic acids or preferably dicarboxylic acids containing at least one ethyleneamines, or derivatives thereof, in particular anhydrides or esters; organic titanates, zirconate or aluminates containing at least one ethyleneamines; or mixtures thereof.

Preferably, the silane compounds can be the had to choose, for example, of: γ-methacryloxypropyltrimethoxysilane, methyltriethoxysilane, methyltris(2 methoxyethoxy)silane, dimethyldiethoxysilane, vinyltris(2 methoxyethoxy)silane, VINYLTRIMETHOXYSILANE, vinyltriethoxysilane, octyltriethoxysilane, isobutyltrimethoxysilane, isobutyltrimethoxysilane or mixtures thereof.

Preferably, the epoxides can choose, for example, from: glycidylmethacrylate, glycidylmethacrylate, monoglycidyl ester basis of itaconic acid, pilgramage ester of maleic acid, vinylpyridines ether, allylglycidyl ether or mixtures thereof.

Preferably monocarboxylic or dicarboxylic acids or their derivatives could choose, for example, of: maleic acid, maleic anhydride, fumaric acid, tarakanovas acid, basis of itaconic acid, acrylic acid, methacrylic acid and derivatives thereof, anhydrides, and esters or mixtures thereof. Maleic anhydride is especially preferred.

In order to additionally improve the compatibility between the vulcanized rubber in a crushed form (c) and thermoplastic elastomer based on styrene (a), a thermoplastic elastomeric material according to the present invention may additionally include at least one aromatic monocarboxylic or dicarboxylic acid or its derivative (e),such as an anhydride or ester.

Aromatic monocarboxylic or dicarboxylic acid or its derivative (e), which can be used according to the present invention, may be selected, for example, of: benzoic acid, phthalic acid, phthalic anhydride, trimellitic anhydride, di-2-ethylhexylphthalate, diisodecylphthalate, Tris-2-ethylhexylacrylate or mixtures thereof.

According to one preferred variant implementation of aromatic monocarboxylic or dicarboxylic acids or their derivatives (e) present in thermoplastic elastomer material of the present invention in an amount of 0 parts by mass to 10 parts by weight, preferably from 0.01 parts by mass to 5 parts by weight against 100 parts by weight of (a) + (b).

According to one preferred variant implementation of thermoplastic elastomeric material according to the present invention may additionally include at least one inorganic filler (f).

Inorganic fillers (f), which can be used according to the present invention, can be selected, for example, from: hydroxides, hydrated oxides, salts or hydrated salts of metals, in particular calcium, magnesium or aluminum, optionally in a mixture with other inorganic fillers, such as, for example, silicates, carbon black, or mixtures thereof.

Specific examples coming is their inorganic fillers are: magnesium hydroxide, aluminum hydroxide, aluminum oxide (including kaolin, i.e. aluminum silicate), alumina trihydrate, hydrate magnesium carbonate, magnesium carbonate, hydrate of calcium carbonate, calcium carbonate, hydrate carbon double salts of magnesium and calcium, a double carbonate of magnesium and calcium, or mixtures thereof. These inorganic fillers (f) are preferably used in the form of particles with dimensions in the range of from 0.1 μm to 50 μm, preferably from 1 μm to 25 μm.

According to one preferred variant implementation of the inorganic filler (f) is present in thermoplastic elastomer material of the present invention in an amount of 0 parts by mass to 200 parts by weight, preferably from 10 parts by weight to 50 parts by weight against 100 parts by weight of (a) + (b).

According to one preferred variant implementation, to increase the hiding power of a thermoplastic elastomeric material according to the present invention it may further include at least one syndiotactic 1,2-polybutadiene (g).

Preferably, syndiotactic 1,2-polybutadiene may have average molecular mass distribution (srednekamennogo), which can be determined, for example, gel chromatography (GPC), of 75,000 to 200,000, preferably from 100000 to 150000. Preferably, the decree of the config 1,2-polybutadiene had a degree of crystallinity of from 10% to 90%, preferably from 20% to 40%.

According to one preferred variant implementation syndiotactic 1,2-polybutadiene (g) is present in thermoplastic elastomer material of the present invention in an amount of 0 parts by mass to 300 parts by weight, preferably from 5 parts by mass to 200 parts by weight against 100 parts by weight of (a) + (b).

When a thermoplastic polymer based on styrene (a) does not include a monomer of a conjugated diene, at least one sizing (d) may be added to thermoplastic elastomeric material according to the present invention in combination with at least one radical initiator (h), in order to impart sizing (d) directly to thermoplastic elastomer based on styrene (a). Organic peroxides, such as, for example, t-butylperbenzoate, peroxide Dicumyl, benzoyl peroxide, peroxide di-t-butyl, or mixtures thereof, may, for example, be used as the radical initiator (h).

The amount of radical initiator (h), which can be added to thermoplastic elastomer material of the present invention is usually from 0 parts by mass to 5 parts by weight, preferably from 0.01 parts by mass to 2 parts by weight against 100 parts by weight of (a) + (b).

It should be noted that in the case where thermoplastic elastomer is again styrene (a) comprises a monomer of a conjugated diene, in radical initiator (h) there is almost no need. In fact, adding the specified radical initiator (h) may cause crosslinking of thermoplastic elastomer based on styrene (a) (the phenomenon of podocarpaceae)that could adversely affect the melt flow index (MFI) of the obtained thermoplastic elastomeric material. Therefore, when thermoplastic elastomer based on styrene (a) comprises a monomer of a conjugated diene, a thermoplastic elastomeric material according to the present invention contains almost no radical initiator (h).

For purposes of the present description and the subsequent claims, the term "practically does not contain a radical initiator (h)" means that in case of its presence, the amount of radical initiator (h) is not more than 0.2 parts by weight against 100 parts by weight of (a) + (b).

Thermoplastic elastomeric material according to the present invention may further include conventional additives such as lubricants (such as, for example, paraffinic or naphthenic oils, pigments, plasticizers, surface modifiers, ultraviolet absorbers of radiation, antioxidants, light stabilizers based on sterically obstructed amines or amides, or mixtures thereof.

This termoplastic the first elastomeric material can be obtained in the first mixing vulcanized rubber in powdered form (c), thermoplastic elastomer based on styrene (a) and sizing containing at least one ethyleneamines (d). After this first stage of mixing other ingredients optionally present, may be added to thermoplastic elastomeric material. The mixing can be carried out in accordance with known in the art methods, such as, for example, using an open-crusher-mixer or a closed mixer with tangetsialnogo rotors (Banbury) or twin-rotor mixer (Intermix), or in continuous mixers of the type Ko-Kneader (Buss) or of type double screw rotating in the same direction or counter-rotating. The obtained thermoplastic elastomeric material can then be extruded and granulated using conventional methods. Granules can be either Packed for future use or used immediately in the molding process of the finished product. Granules or mixture of the present invention can be formed into finished products on the basis of methods known in the art for thermal processing of compositions based on thermoplastic resins. For example, can be pressed into the form, vacuum forming, injection moulding, calendering, casting, extrusion, molding the winding of the thread, laminating, centrifugal casting or molding slow the rotation, transfer pressing, molding laying on the form or contact molding, stamping, or a combination of these methods.

According to an additional aspect of the present invention also relates to a finished product obtained by molding disclosed above thermoplastic elastomer material.

Thermoplastic elastomeric material according to the present invention can be applied in manufacturing a wide range of shoes, including canvas shoes, sports shoes and dress Shoe. In particular, thermoplastic elastomeric material can be used for soles, insoles and other similar components.

In addition, thermoplastic elastomeric material according to the present invention can also be used to prepare, for example, tapes such as conveyor belts, transmission belts or belt drives, decks and walkways, which can be used for recreational areas, industrial areas, sports and safe coverings; floor tiles; mats, such as anti-static computer mats, rugs on the floor of the vehicle; mounting flange; protective coatings dampers; fire barriers; safety fencing; fundamentals of carpet; car bumpers, gaskets wheel arches; seals, that is their as the seals of the doors and Windows of the vehicle; o-rings; gaskets; irrigation systems; materials for pipes or hoses; flower pots; building blocks; roofing materials; geomembranes; and other similar applications.

Alternatively, a thermoplastic elastomeric material according to the present invention can be used in the composition for asphalt.

A detailed description of the preferred embodiments

The present invention will be further illustrated below with the help of several examples of the preparation, which are given for purely illustrative purposes and without any limitation of this invention.

EXAMPLES 1-3

Obtaining a thermoplastic elastomer materials

Thermoplastic elastomeric materials are shown in table 1, was prepared as follows.

Europrene®SOL T171 (a), vulkanisierung rubber (c) and maleic anhydride (d), were mixed together in a closed mixer (model Pomini PL 1.6) for about 2 minutes. When the temperature reached 190°C, held the stage degassing for 1 minutes, then the mixture was unloaded. The resulting mixture was then loaded into an open roll mixer, operating at a temperature of 150°C, to obtain a sheet with a thickness of 1 mm.

TABLE 1
USE the 1(*)2
Europrene®SOL T171100100
Vulcanized rubber(1)to 19.9to 19.9
Maleic anhydride(1)-2,0
(*): relative;
(1): parts by weight against 100 parts by weight of (a)

Europrene®SOL T171: styrene-butadiene-styrene triblock copolymer of the radial type, containing about 43% by weight of styrene unit and 50 pounds per hour of aromatic oils (Polimeri Europa);

Vulcanized rubber: cryogenic ground rubber waste from waste tyres (<0.1 mm (140 mesh) is Applied Cryogenics International AG).

Plate thickness of 1 mm was molded from a thermoplastic material obtained as disclosed above. Plates were obtained by molding for 10 minutes at 180°C and then cooled for 5 minutes at room temperature.

Plates used for determining mechanical characteristics (i.e. breaking stress and elongation at break in accordance with ASTM D638-02a Standard equipment company Instron at a load speed of 50 mm/min. Obtained the results shown in table 2.

In addition, we measured the values of the degree of abrasion according to DIN 53516 Standard, and they are also shown in table 2, expressed as the number of dial-up connection.

In addition, we measured the melt flow index (MFI) according to ASTM D1238-01el Standard with a 5 kg and a temperature of 190°C. the data Obtained are shown in table 2.

TABLE 2
EXAMPLE1(*)2
Ultimate tensile stress (MPa)the 5.77,1
Elongation at break (%)837896
The degree of abrasion DIN (mm3)10892
MFI (5 kg 190°C)2,91,7
(*): comparative.

The data in table 2 show that thermoplastic elastomeric material according to the present invention (example 2) has in relation to the comparative compositions, including vulcanizer the bathroom rubber in powdered form, containing no sizing (example 1), improved mechanical properties, in particular the breaking stress and elongation at break, and an improved degree of abrasive wear. In addition, there is no negative effect on the melt flow index (MFI).

EXAMPLES 3-4

Obtaining a thermoplastic elastomer materials

Thermoplastic elastomeric materials are shown in table 3, was prepared as follows.

Europrene®SOL T171 (a), vulkanisierung rubber (c) and maleic anhydride (d), were mixed together in a closed mixer (model Pomini PL 1.6) for about 2 minutes. When the temperature reached 190°C was performed stage degassing for 1 minute, then add the polystyrene (b), and the mixture was mixed for 5 minutes Then the mixture was unloaded. The resulting mixture was then loaded into an open roll mixer, operating at a temperature of 150°C, to obtain a sheet with a thickness of 1 mm.

TABLE 3
EXAMPLE3(*)4
Europrene®SOL T171(1)65,965,9
Polystyrene(1)34,1 34,1
Vulcanized rubber(2)23,323,3
Maleic anhydride(2)-2,3
(*): relative;
(1): number (a) + (b) = 100;
(2): parts by weight against 100 parts by weight of (a) + (b).

Europrene®SOL T171: styrene-butadiene-styrene triblock copolymer of the radial type, containing about 43% by weight of styrene unit and 50 pounds per hour of aromatic oils (Polimeri Europa);

Polystyrene: reusable (Socotech Verona S.p.A.);

Vulcanized rubber: cryogenic ground rubber waste from waste tyres (<0.1 mm (140 mesh) is Applied Cryogenics International AG).

Mechanical characteristics (i.e. ultimate tensile stress and elongation at break), the degree of abrasion DIN and MFI were measured, as reported above. The data obtained are given in table 4.

TABLE 4
EXAMPLE3(*)4
Ultimate tensile stress (MPa)6,78,1
Elongation at break (%)369421
The degree of abrasion DIN (mm3)146117
MFI (5 kg 190°C)the 9.74,0
(*): comparative.

The data in table 4 show that thermoplastic elastomeric material according to the present invention (example 4) has in relation to the comparative compositions, including vulkanisierung rubber in its powdered form, not containing sizing (example 3), improved mechanical properties, in particular the breaking stress and elongation at break, and an improved degree of abrasive wear. In addition, there is no negative effect on the melt flow index (MFI).

EXAMPLES 5-6

Obtaining a thermoplastic elastomer materials

Thermoplastic elastomeric materials are shown in table 5, was prepared as follows.

Europrene®SOL T171 (a), vulkanisierung rubber (c) and maleic anhydride (d), were mixed together in a closed mixer (model Pomini PL 1.6) for about 2 minutes. When the temperature reached 190°C, held the stage degassing for 1 minute, C is the added polystyrene (b) and K-Resin ®KR01 (b), and the mixture was mixed for 5 minutes Then the mixture was unloaded. The resulting mixture was then loaded into an open roll mixer, operating at a temperature of 150°C, to obtain a sheet with a thickness of 1 mm.

TABLE 5
EXAMPLE3(*)4
Europrene®SOL T171(1)52,652,6
Polystyrene(1)27,827,8
K-Resin®KR01(1)19,619,6
Vulcanized rubber(2)24,724,7
Maleic anhydride(2)-2,5
(*): relative;
(1)(a)+ (b) = 100;
(2): parts by weight per 100 parts by weight of (a) + (b).

Europrene®SOL T171: styrene-butadiene-styrene triblock copolymer of the radial type, containing about 43% by weight of styrene unit and 50 pounds per hour aromatic the ski oil (Polimeri Europa);

Polystyrene: reusable (Socotech Verona S.p.A.);

K-Resin®KR01: styrene-butadiene copolymer containing about 75% styrene (Chevron Phillips);

Vulcanized rubber: cryogenic ground rubber waste from waste tyres (<0.1 mm (140 mesh) is Applied Cryogenics International AG).

Mechanical characteristics (i.e. ultimate tensile stress and elongation at break), the degree of abrasion DIN and MFI were measured, as reported above. The data obtained are shown in table 6.

TABLE 6
EXAMPLE5(*)6
Ultimate tensile stress (MPa)8,19,1
Elongation at break (%)434506
The degree of abrasion DIN (mm3)139127
MFI (5 kg 190°C)11,73,2
(*): comparative.

The data in table 6 show that thermoplastic elastomer mater what al of the present invention (example 6) is compared to comparative compositions including vulkanisierung rubber in its powdered form, not containing sizing (example 5), improved mechanical properties, in particular the breaking stress and elongation at break, and an improved degree of abrasive wear. In addition, there is no negative effect on the melt flow index (MFI).

1. Thermoplastic elastomeric material, which includes:
(a) from 10% by mass to 100% by weight, of at least one thermoplastic elastomer based on styrene;
(b) from 0% by mass to 90% by weight, of at least one thermoplastic homopolymer or copolymer of α-olefin different from (a);
and the number (a)+(b) is 100;
(c) from 2 parts by weight to 90 parts by weight of vulcanized rubber in powdered form;
(d) from 0.01 parts by mass to 10 parts by weight, of at least one sizing containing at least one ethyleneamines;
moreover, the number (c) and (d) are expressed in relation to 100 parts by weight of (a)+(b).

2. Thermoplastic elastomeric material according to claim 1, which includes:
(a) from 20 mass% to 80 mass% of at least one thermoplastic elastomer based on styrene;
(b) from 20 mass% to 80 mass% of at least one thermoplastic homopolymer or copolymer of α-olefin different from (a);
and the number (a)+(b) is 100.

3. Those who maplestory elastomeric material according to claim 1 or 2, in which vulcanized rubber in powdered form (C) is present in an amount of 5 parts by weight to 40 parts by weight per 100 parts by weight of (a)+(b).

4. Thermoplastic elastomeric material according to claim 1, in which the sizing is present in amounts of from 0.05 parts by mass to 5 parts by weight per 100 parts by weight of (a)+(b).

5. Thermoplastic elastomeric material according to claim 1 or 2, in which thermoplastic elastomer based on styrene (a) includes at least two terminal poly(monovinylacetylene hydrocarbon) block and at least one internal poly(diene with conjugated double bonds) block and/or poly(aliphatic α-olefin) block.

6. Thermoplastic elastomeric material according to claim 5, in which thermoplastic elastomer based on styrene (a) is chosen from block copolymers having the following formula: A(VA)m, A(BA')m'or (AB)nX, or (AB)pX(A'b')qor (AB)rX(B')swhere each of a and a' independently represent a polymer block comprising monolinolein aromatic monomer; b, b' and a" independently represent a polymer block comprising a monomer of a conjugated diene and/or a monomer aliphatic α-olefin; X represents a polyfunctional bridging fragment; n and r represent an integer not less than 2; m and m' represent an integer ≥1; p, q and s represent an integer number is on ≥1.

7. Thermoplastic elastomeric material according to claim 6, in which monotinicity aromatic monomer units a and a' are selected from: styrene, alkyl substituted styrene, alkoxy-substituted styrene, vinylnaphthalene, alkyl substituted vinylnaphthalene, vinylsilane, alkyl substituted vinylsilane, or mixtures thereof.

8. Thermoplastic elastomeric material according to claim 6 or 7, in which the monomer of the conjugated diene blocks b, b' and a" are selected from conjugated dienes containing from 4 to 24 carbon atoms, such as 1,3-butadiene, isoprene, 2-ethyl-1,3-butadiene, 2,3-dimethyl-1,3-butadiene, 2-phenyl-1,3-butadiene, 1,3-pentadiene, methylpentadiene, 3-ethyl-1,3-pentadiene, 2,4-hexadiene, 3,4-dimethyl-1,3-hexadiene, 4,5-diethyl-1,3-octadiene, piperylene, or mixtures thereof.

9. Thermoplastic elastomeric material according to claim 6 or 7, in which the monomer aliphatic α-olefin selected from ethylene, propylene or mixtures thereof.

10. Thermoplastic elastomeric material according to claim 6 or 7, in which the polyfunctional bridging fragment comprises from 2 to 8 functional groups.

11. Thermoplastic elastomeric material according to claim 6 or 7, in which the block copolymers selectively gidrirovanny.

12. Thermoplastic elastomeric material according to claim 6 or 7, in which the blocks a and a' have srednevekovoy molecular weight in the range from 3000 g/mol to 125,000 g/mol.

13. Thermoplastic elastomeric material pop, in which the blocks b, b' and b" have srednevekovoy molecular weight in the range of from 10,000 g/mol to 300,000 g/mol.

14. Thermoplastic elastomeric material according to claim 6, in which the block copolymers have a total srednevekovoy molecular weight in the range from 25000 to 500000.

15. Thermoplastic elastomeric material according to claim 6, in which the block copolymer has a three-block structure and can be linear or radial type, or any combination thereof.

16. Thermoplastic elastomeric material according to claim 1 or 2, in which thermoplastic elastomer based on styrene (a) choose from the following three-block copolymers: styrene-butadiene-styrene (S-B-S), styrene-isoprene-styrene (S-I-S), styrene-ethylene/butene-styrene (S-EB-S), or mixtures thereof.

17. Thermoplastic elastomeric material according to claim 1 or 2, in which α-olefin Homo-polymer or copolymer (b), different from (a), the α-olefin is aliphatic or aromatic α-olefin of the formula CH2=CH-R, where R represents a hydrogen atom, a linear or branched alkyl group containing from 1 to 12 carbon atoms, aryl group having 6 to 14 carbon atoms.

18. Thermoplastic elastomeric material 17, in which the aliphatic α-olefin selected from: ethylene, propylene, 1-butene, isoprene, isobutylene, 1-pentene, 1-hexene, 3-methyl-1-butene, 3-methyl-1-pentene, 4-methyl-1-pentene, 4-methyl-hexene, 4,4-dimethyl-1-hexene, 4,4-dimethyl-1-pentene, 4-ethyl-1-hexene, 3-ethyl-1-hexene, 1-octene, 1-mission 1-dodecene, 1-tetradecene, 1-hexadecene, 1 octadecene, 1 eicosene, or mixtures thereof.

19. Thermoplastic elastomeric material 17, in which the aromatic α-olefin selected from: styrene, α-methylstyrene, or mixtures thereof.

20. Thermoplastic elastomeric material according to claim 1 or 2, in which a thermoplastic homopolymer or copolymer of α-olefin (b) is chosen from:
the homopolymers of propylene or copolymers of propylene with ethylene and/or at least one α-olefin having from 4 to 12 carbon atoms, with the total content of ethylene and/or α-olefin is less than 10 mol.%;
the homopolymers of ethylene or copolymers of ethylene, at least one α-olefin having from 4 to 12 carbon atoms, optionally, at least one polirom;
polymers of styrene, such as, for example, homopolymers of styrene; copolymers of styrene with at least one C1-C4alkylthiol or at least one natural or synthetic elastomer, such as, for example, polybutadiene, polyisoprene, butyl rubber, ethylene/propylene/diene copolymer (EPDM), ethylene/propylene copolymers (EPR), natural rubber, epichlorohydrin;
copolymers of ethylene, at least one ethyleneamines ether selected from alkylacrylate, altimetry is the ATA and vinylcarbazole, in which the alkyl group, linear or branched, may have from 1 to 8 carbon atoms, while the carboxylate group, a linear or branched, may have from 2 to 8 carbon atoms; and in which Ethylenediamine ether is typically present in an amount of from 0.1 to 80% by weight of the total weight of the copolymer.

21. Thermoplastic elastomeric material according to claim 20, in which the ethylene homopolymers or copolymers of ethylene, at least one α-olefin having from 4 to 12 carbon atoms, selected from: low density polyethylene (LDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), linear low density polyethylene (LLDPE), polyethylene, ultra low density (ULDPE), or mixtures thereof.

22. Thermoplastic elastomeric material according to claim 20, in which the copolymers of ethylene, at least one α-olefin having from 4 to 12 carbon atoms, and optionally at least one polirom, choose from:
elastomeric copolymers having the following monomer composition: 35-90 mol.% ethylene; 10-65 mol.% aliphatic α-olefin; 0-10 mol.% polyene;
copolymers having the following monomer composition: 75-97 mol.% ethylene; 3-25 mol.% aliphatic α-olefin; 0-5 mol.% Polyana.

23. Thermoplastic elastomeric material according to claim 20, in which the polymers of styrene, different from (a, choose from: syndiotactic polystyrene, irregular polystyrene, stereoregular polystyrene, a styrene-methylstyrene, a styrene-isoprene or styrene-butadiene, styrene-ethylene/propylene (S-EP) or styrene-ethylene/butene (S-EB) diblock copolymers; styrene-butadiene or styrene-isoprene branched copolymers; or mixtures thereof.

24. Thermoplastic elastomeric material according to claim 20, in which the copolymers of ethylene, at least one ethyleneamines ether selected from: ethylene/vinyl acetate copolymer (EVA), ethylene/acrylate copolymer (EEA), ethylene/butyl acrylate copolymer (EBA), or mixtures thereof.

25. Thermoplastic elastomeric material according to claim 1, in which the vulcanized rubber in a crushed form (C) has a particle size of not more than 10 mm

26. Thermoplastic elastomeric material according A.25, in which the vulcanized rubber in a crushed form (C) has a particle size of not more than 5 mm.

27. Thermoplastic elastomeric material according p in which the vulcanized rubber in a crushed form (C) has a particle size of not more than 0.5 mm.

28. Thermoplastic elastomeric material according to item 27, in which the vulcanized rubber in a crushed form (C) has a particle size of not more than 0.2 mm

29. Thermoplastic elastomeric material according p in which vulcanized rubber in the ISM is Lannoy form (C) has a particle size of not more than 0.1 mm

30. Thermoplastic elastomeric material according to claim 1, in which the vulcanized rubber in a crushed form (s) includes at least one crosslinked diene elastomeric polymer or copolymer of natural origin or obtained by polymerization in solution, emulsion polymerization or gas-phase polymerization of one or more paired diolefins, optionally mixed with at least one co monomer selected from monofilament and/or polar comonomers in an amount of not more than 60 mass%.

31. Thermoplastic elastomeric material according to item 30, in which the elastomeric polymer or copolymer cross-linked diene selected from: CIS-1,4-polyisoprene, 3,4-polyisoprene, polybutadiene, optionally halogenated isoprene/isobutene copolymers, 1,3-butadiene/Acrylonitrile copolymers, styrene/1,3-butadiene copolymers, styrene/isoprene/1,3-butadiene copolymers, styrene/1,3-butadiene/Acrylonitrile copolymers, or mixtures thereof.

32. Thermoplastic elastomeric material according to claim 1, in which the vulcanized rubber in a crushed form (s) may optionally include at least one crosslinked elastomeric polymer of one or more monoolefins with the olefinic co monomer or its derivatives.

33. Thermoplastic elastomeric material according p, in which the crosslinked elastomeric polymer of you who eraut from: ethylene/propylene copolymers (EPR) or ethylene/propylene/diene copolymers (EPDM); polyisobutene; butyl rubber; gelegenbtlich, in particular chlorobutyl or bromatological; or mixtures thereof.

34. Thermoplastic elastomeric material according to claim 1, in which the sizing containing at least one ethyleneamines (d), selected from: compounds of silane containing at least one ethyleneamines and at least one capable of hydrolysis group; epoxides containing at least one ethyleneamines; monocarboxylic acids or dicarboxylic acids containing at least one ethyleneamines, or derivatives thereof; organic titanates, zirconates or aluminates containing at least one ethyleneamines.

35. Thermoplastic elastomeric material according to clause 34, wherein the silane compounds are selected from: γ-methacryloxypropyltrimethoxysilane, methyltriethoxysilane, methyltris(2 methoxyethoxy)silane, dimethyldiethoxysilane, vinyltris(2 methoxyethoxy)silane, VINYLTRIMETHOXYSILANE, vinyltriethoxysilane, octyltriethoxysilane, isobutyltrimethoxysilane, isobutyltrimethoxysilane, or mixtures thereof.

36. Thermoplastic elastomeric material 34, in which epoxides are selected from: glycidylmethacrylate, glycidylmethacrylate, monoglycidyl ester basis of itaconic acid, pilgramage ester of maleic acid, vinylpyridines ether, al is illiciting ether, or mixtures thereof.

37. Thermoplastic elastomeric material 34, in which the monocarboxylic acids or derivatives thereof selected from: acrylic acid, methacrylic acid, and derivatives thereof, anhydrides or esters, or mixtures thereof, and where the dicarboxylic acids or derivatives thereof selected from maleic acid, maleic anhydride, fumaric acid, tarakanovas acid, basis of itaconic acid, and derivatives thereof, anhydrides or esters, or mixtures thereof.

38. Thermoplastic elastomeric material according to claim 1, which additionally contains at least one aromatic monocarboxylic or dicarboxylic acid or their derivatives (e), such as an anhydride or ester.

39. Thermoplastic elastomeric material according to § 38, in which the monocarboxylic or dicarboxylic acid or its derivative selected from: benzoic acid, phthalic acid, phthalic anhydride, trimellitic anhydride, di-2-ethylhexylphthalate, diisodecylphthalate, Tris-2-ethylhexylacrylate, or mixtures thereof.

40. Thermoplastic elastomeric material according to § 38 or 39, in which the aromatic monocarboxylic or dicarboxylic acids or their derivatives (e) is present in an amount of 0 parts by mass to 10 parts by weight per 100 parts by weight of (a)+(b).

41. Thermoplastic elastomeric material according p in which aromatic monocarboxylic or dicer is about acids or their derivatives (e) are present in quantities of from 0.01 parts by mass to 5 parts by weight per 100 parts by weight of (a)+(b).

42. Thermoplastic elastomeric material according to claim 1, which additionally contains at least one inorganic filler (f).

43. Thermoplastic elastomeric material according to § 42, in which the inorganic filler (f) is chosen from hydroxides, hydrated oxides, salts or hydrated salts of metals, in particular calcium, magnesium or aluminum, optionally in a mixture with other inorganic fillers, such as, for example, silicates, carbon black, or mixtures thereof.

44. Thermoplastic elastomeric material according to item 43, in which inorganic fillers are: magnesium hydroxide, aluminum hydroxide, alumina, alumina trihydrate, hydrate magnesium carbonate, magnesium carbonate, hydrate of calcium carbonate, calcium carbonate, hydrate carbon double salts of magnesium and calcium, a double carbonate of magnesium and calcium, or mixtures thereof.

45. Thermoplastic elastomeric material according to one of PP-44, in which the inorganic filler (f) is present in an amount of 0 parts by mass to 200 parts by weight per 100 parts by weight of (a)+(b).

46. Thermoplastic elastomeric material according to item 45, in which the inorganic filler (f) is present in an amount of 10 parts by weight to 50 parts by weight per 100 parts by weight of (a)+(b).

47. Thermoplastic elastomeric material according to claim 1, which is more the tion includes, at least one syndiotactic 1,2-polybutadiene (g).

48. Thermoplastic elastomeric material according p in which syndiotactic 1,2-polybutadiene has an average molecular mass distribution (srednekamennogo) from 75000 to 200,000.

49. Thermoplastic elastomeric material according p or 48, in which the 1,2-polybutadiene has a degree of crystallinity of from 10 to 90%.

50. Thermoplastic elastomeric material according p or 48, in which syndiotactic 1,2-polybutadiene (g) is present in an amount of 0 parts by mass to 300 parts by weight per 100 parts by weight of (a)+(b).

51. Thermoplastic elastomeric material according to item 50, which syndiotactic 1,2-polybutadiene (g) is present in an amount of 5 parts by weight to 200 parts by weight per 100 parts by weight of (a)+(b).

52. Thermoplastic elastomeric material according to claim 1 which further includes a radical initiator (h).

53. Thermoplastic elastomeric material according to paragraph 52, in which the radical initiator (h) selected from organic peroxides, such as tert-butylperbenzoate, peroxide Dicumyl, benzoyl peroxide, peroxide di-tert-butyl, or mixtures thereof.

54. Thermoplastic elastomeric material according to paragraph 52 or 53, in which the radical initiator (h) is added in an amount of 0 parts by mass to 5 parts by weight per 100 parts by weight of (a)+(b).

55. Thermoplastic ELA is tomary material according to item 54, in which the radical initiator (h) is added in an amount of from 0.01 parts by mass to 2 parts by weight per 100 parts by weight of (a)+(b).

56. Thermoplastic elastomeric material according to claim 1 or 2, in which thermoplastic elastomer based on styrene (a) includes monomers, conjugated diene, and a radical initiator (h) there is almost no need.

57. The finished product obtained from thermoplastic elastomeric material according to claims 1 to 56.

58. The finished product according to § 57, obtained by molding a thermoplastic elastomeric material according to claims 1 to 56.

59. The finished product according to § 57, and the specified finished product selected from Shoe soles, Shoe Ossowski, Shoe insoles.

60. The finished product according to § 57, and the specified finished product chosen from: tapes; decks and walkways; floor tiles; floor mats; protective coatings dampers; fire barriers; safety fencing; foundations for carpets; automobile bumpers, gaskets wheel arches; gaskets; o-rings; gaskets; irrigation systems; materials for pipes or hoses; flower pots; building blocks; roofing materials; geomembranes.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to a thermoplastic elastomer composition with high melt strength, to a method of making moulded elastomer objects and to moulded elastomer objects, made from the said composition. The composition contains at least one linear crystalline polyolefin and at least one compatible thermoplastic elastomer or a mixture of one or more styrene block copolymers with a thermoplastic and/or plasticiser. The polyolefin has melting point of at least 100° C and polydispersity index (PI) greater than 20, determined through isothermal dynamic frequency sweep at 190°C and calculated from the equation PI = 100000/Gc, where Gc is expressed in pascals and is the modulus at the point of intersection (Gc=G'=G"), and the thermoplastic elastomer or mixture has compression set below 50%, determined at ambient temperature 24 hours after compression on ASTM D395-03.

EFFECT: obtaining a composition which can be used in processes which include a stage for unsupported stretching while the composition is molten, such as foaming, film blowing, fibre drawing, blow moulding, profile extrusion and hot moulding.

17 cl, 6 ex, 9 tbl

FIELD: chemistry.

SUBSTANCE: thermoplastic gel composition which can be cured under the action of radiation includes: (a) approximately from 5 to 40 wt % of cured block-copolymer selected from the group consisting from compounds of formula (II) or (III) or (IV), whereat A is vinyl aromatic hydrocarbon block with molecular mass from 4000 to 30000, HD is hydrogenated conjugated diene block with molecular mass from 10000 to 100000, Y is multifunctional binding agent, UD is conjugated diene block with molecular mass from 1000 to 80000 or conjugated diene block with molecular mass from 1000 to 80000 which is partially hydrogenated, x is integer number from 1 to 20, y is equal to 0 or 1, z is integer number from 1 to 20 and in the formulas (II) and (III) the sum (x+z) is in the range from 2 to 30; (b) from 60 to 90 wt % of the liquid component selected from the filling oils, plasticisers and solvents compatible with the curable copolymer; (c) from 1 to 20 wt % at least one curative agent selected from bifunctional or multifunctional acrylate or metaacrylate monomers or vinyl ethers; d) optionally from 0 to 10 wt % of the expanding microspheres; and (e) optionally from 0 to 3 wt % of the photoinitiator whereat total component amount is equal 100 wt %. The thermoreactive article containing the thermoplastic gel composition subjected to the action of radiation is described as well as the thermoplastic gel composition which can be cured under the action of radiation and includes: (a) from 5 to 40 % w/w of the mixture of curable block-copolymer with formula (I) whereat S is polystyrol block, B is polybutadiene polymer block having the content of 1,2-vinyl groups in the range from 10 to 80 mole %, Y is the radical of the binding agent, x is integer number from 1 to 20, preferably 2, y - integer number from 0 to 20, preferably 2, with sum (x+y) being in the range from 2 to 30; and block-copolymer of the (polystyrol -hydrogenated polybutadiene -polystyrol ) type with ratio (block-copolymer of formula (I): (block-copolymer of (polystyrol -hydrogenated polybutadiene -polystyrol ) type being in the range from 3:1 to 1:3; (b) from 60 to 90 wt % of the liquid component selected from the filling oils, plasticisers and solvents compatible with the curable copolymer; (c) from 1 to 20 wt % of at least one curative agent selected from bifunctional or multifunctional acrylate or metaacrylate monomers or vinyl ethers; (d) from 0.1 to 10 wt % of expanding microspheres; and (e) from 0 to 3 wt % of photoinitiator whereat total component amount is equal 100 wt %.

EFFECT: increase of high-temperature shrinkage resistance.

10 cl, 8 tbl, 30 ex

FIELD: chemistry.

SUBSTANCE: method for preparation of functionalised, bound or star-block copolymer used in sulphur-cured rubber composition containing carbon char and having in cured state decreased hysteresis with at least one of said blocks containing polyisoprene and at least one other block consisting of diene elastomer different from polyisopren with mole content of repeating units of one or more of conjugated dienes exceeding 15% includes: copolymerisation of one or more monomers containing at least one conjugated diene different from polyisoprene with catalitycal system containing hydrocarbon solvent halogenated or unhalogenated metal-organic compound A of the group IIIA metal, alkaline-earth metal compound B and polymer initiator C containing bound C-Li formed by unfunctionalised monolythium-containing polyisopren intended for formation of the said block or every polyisoprene block and (ii) adding to the product of the said polymerisation of the functionalising, binding or star-shape forming agent containing acetoxy group of formula Rn-Sn-(O-CO-R')4n> whereat n is integer natural number from 0 to 4 and R and R' each represents following groups: alkyl, cycloalkyl, aryl, aralkyl, same or different, for functionalisation or binding or forming of star-shape structure of the said block consisting of dien elastomer different from polyisopren. The said one or more polyisopren blocks have number average molecular mass Mn1 from 2500 to 20000 g/mole, the said one or more dien elastomer blocks have number average molecular mass Mn2 from 65000 to 350000 g/mole. Functionalised, bound or star-block copolymer, curable or cured rubber composition with lowered hysteresis in cured state, containing reinforcing filler completely or partially consisting of carbon char and containing aforementioned functionalised, bound or star-block copolymer are described also. Pneumatic tyre tread containing aforementioned rubber composition is described as well as pneumatic tyre containing described above tread.

EFFECT: hysteresis decrease of cured the rubber composition.

36 cl, 5 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to the method of producing functionalised, linked or star block copolymer, used in rubber compositions, cross-linked with sulphur and with low hysteresis in the cross-linked state. Described is a method of producing the said copolymer, containing soot and with low hysteresis in the cross-linked state. At least one or the above mentioned blocks consists of a diene elastomer, distinct from polyisoprene, the molar content of branches of one or several conjugate dienes of which exceeds 15%. The method is distinguished by that it involves: (i) copolymerisation of one or several monomers, containing at least one conjugated diene, distinct from isoprene, using a catalyst system, containing a hydrocarbon solvent, halogenation or non-halogenated organo-metal compound A of a group IIIA metal, compound B of an alkali-earth metal and a polymer initiator C, containing C-Li bond, which is formed from non-functionalised mono-lithium containing polyisoprene, meant for forming the said or each polyisoprene block; the said one or several polyisoprene blocks have average molecular mass Mn1 from 2500 to 20000 g/mol, in effect that, one or several blocks, containing diene elastomer, distinct from polyisoprene, contains 70% or more 1,4-trans-branches and has average molecular mass Mn2 from 65000 to 350000 g/mol, and (ii) addition into the copolymerisation product of a functionalised, linking or star structure forming agent, containing one, two or at least three epoxy groups, respectively, for functionalising, linking or forming a star structure of the given block, consisting of diene elastomer, distinct from polyisoprene. Description is also given a functionalised, linked or star block-copolymer, cross-linkable or cross-linked rubber composition, containing the said functionalised, linked or star block-copolymer, and description is also given of a pneumatic tyre tread and a pneumatic tyre.

EFFECT: obtaining a block-copolymer, which is used in compositions for pneumatic tyre treads, and which reduces hysteresis of the given composition in cross-linked state.

40 cl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention refers to making a moulded product for handling clean-room materials, intermediate products or end products, such as a container, a tray and a tool. The moulded product is made of resin compound prepared by mixing in melt cycloolefine polymer (A) 100 weight fractions chosen from the group including bicyclo[2.2.1]-2-heptene and its derivatives, tricyclo [4,3,0,12,5]-3-decene and its derivatives, and tetracyclo[4,4,0,12,5,17,10]-3-dodecene and its derivatives of vitrification temperature within 60 to 200°C, and amorphous or low-crystalline elastic copolymer (B(b1)) 1 to 150 weight fractions. Copolymer (B(b1)) is polymerised from at least two monomers chosen from the group including ethylene and a-olefin with 3 to 20 carbon atoms and vitrification temperature 0°C or lower. The compound contains radical polymerisation initiator 0.001 to 1 weight fractions containing peroxide, and polyfunctional compound (D) 0 to 1 weight fractions. The compound (D) has at least two radical-polymerised functional groups chosen from the group including vinyl group, allylic group, acrylic group and methacrylic group in a molecule.

EFFECT: clean-room moulded product is characterised with good chemical stability, heat resistance and dimensional accuracy, it prevents volatile component release in the surrounding space, has good abrasion resistance and prevents particle formation.

19 cl, 1 tbl, 2 dwg, 12 ex

FIELD: chemistry.

SUBSTANCE: there is disclosed foam thermoplastic gel composition containing (a) block copolymer containing at least one polymer block A made of monovinyl aromatic compound, and at least one polymer block B made of conjugated diene; (b) liquid component chosen from the group including filling oils, plasticiser and solvents compatible with said block copolymer (a); (c) thermoplastic particles foam when heated containing gas extended when heated or condensed gas, and optionally (d) photoinitiator characterised that block copolymer (a) represents a block copolymer cross-linked when irradiated and contains monovinyl aromatic compound 7 to 35 wt % of total polymer with total apparent molecular weight 50 to 1500 kg/mol and vinyl content in block B 10 to 80 mole %, where blocks B are probably hydrogenated thus residual initial ethylene unsaturation is at least 25 %. There is also disclosed production process of said foam elastic thermoplastic gel composition (versions), as well as application of said foam elastic gel composition.

EFFECT: production of low-density oil gels of improved hear resistance.

13 cl, 6 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: present invention pertains to a method of obtaining a resin composition. Description is given of the method of obtaining a resin composition through mixture in a molten mass of 100 weight parts of cyclic olefin polymer (A), whose glass transition temperature ranges from 60 and 200°C, and 1-150 weight parts of elastic polymer (B), with glass transition temperature 0°C or lower. Part of the cyclic olefin polymer (A) is first mixed in a molten mass with elastic polymer (B) and 0.001-1 weight parts of radical polymerisation initiator (C). The remaining cyclic olefin polymer (A) is then added and mixed in the molten mass. The ratio of the quantity of cyclic olefin polymer (A), initially added, to the quantity of the same polymer added later (initially added/added later) ranges from 1:99 to 70:30. Cyclic olefin polymer (A) is divided into two parts and added separately twice, such that, the mixture with a cross-linked structure can be diluted with cyclic olefin polymer (A), without a cross-linked structure. As a result, increase in the viscosity of the molten resin composition can be prevented.

EFFECT: good abrasion resistance and good moulding properties of the molten mass.

15 cl, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention refers to rubber-processing industry, in particular to development of thermoplastic elastomeric rubber materials that can be used for manufacturing of various extrusion profiles and moulded flexible parts for automotive, cable, light industry and construction engineering. Thermoplastic elastomeric material is made of composition including, wt. fraction: rubber - 100, polyolefin - 2-150, vulcanising agent 1-15, vulcanisation activator 3-10, stearic acid - 0.75-2.0, oil - 25-500 and bulk additive - 1-100, modified diene-containing thermoplastic elastomer, such as hydrooxylated, halogenated, hydrogenated or hydrohalogenated dienevinylaromatic thermoplastic elastomer - 5-150, release agent - zinc stearate, calcium stearate or their mixture - 0.1-2.0. As oil additive the material contains paraffine-naphthene oils, as bulk additive is contains powder filler with particle size 100 nanometers to 20 microns, selected from the group: schungite, kaolin, chalk, talcum powder or carbon white, as well as mixed mineral additive with 0.04-4.0 mass % of industrial carbon. Thus as rubber thermoplastic elastomeric material contains ethylene-propylene-diene rubber with propylene chains 27 to 40 mass %, and as the third comonomer is contains ethylidene norbornene or dicyclopentadiene in amount 2-10 mass %, as well as butyl rubber, chlorbutyl rubber, brominated butyl rubber, polyisoprene rubber, butadiene-styrene rubber, or polybutadiene rubber. As polyolefin it contains isotactic polypropylene, polyethylene or their mixture at ratio of polyethylene mixed with isotactic polypropylene in amount of 5-95 mass %.

EFFECT: production of material possessing high technological and physical-mechanical properties, melt processability to products without vulcanisation by moulding under pressure or extrusion, low density, high fullness by oil.

5 cl, 2 tbl

FIELD: polymer production.

SUBSTANCE: invention provides elastomeric polymer composition comprising at least polymers and copolymers obtained from substituted and unsubstituted vinylaromatic monomers and from diene monomers and including 15 to 85% copolymer containing (i) at least one block formed by 10 to 5000 mainly syndiotactic structural sequences of monomer units derived from at least one substituted or unsubstituted vinylaromatic monomer and (ii) at least one block formed by 10 to 4000 monomer units derived from at least one diene monomer with predominant 1,4-cis structure, wherein 15-85 wt % of polymer obtained from diene monomers has molecular weight between 6000 and 600000 with content of 1,4-cis monomer units constituting at least 90%, while up to 70% of polymer obtained from substituted and unsubstituted vinylaromatic monomers has molecular weight between 10000 and 500000 and degree of syndiotacticity (expressed through syndiotactic pentads) at least 95%, a part formed by monomer units derived from diene monomer is optionally partially or completely hydrogenised. Method of preparing such elastomeric composition is also described.

EFFECT: extended temperature range for elastomeric performance of composition.

42 cl, 5 tbl, 27 ex

FIELD: manufacture of building materials.

SUBSTANCE: invention relates to heat- and hydroinsulation materials suitable for making and repairing various-type roofings, in particular to gluing roll bitumen and bitumen-polymer materials to brick, concrete, metal, wood, ceramic, and other surfaces, as well as for mastic hydroinsulation of construction units of buildings and installations. Bitumen-polymer mastic is composed of. wt %: toluene 31-34, bitumen 30.5-37, thermoelastoplastic 5-11.5, mineral filler (talc) 21-23, resin-colophony 2.5-3.5. Mastic preparation method is also described.

EFFECT: simplified composition and simplified mastic preparation method, achieved compatibility of mastic with a variety of materials, in particular with roofing materials.

4 cl

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for hermetic seals for containers, as well as to hermetic seals for containers for carbonated drinks, which contain said compositions and which are designed such that, their cap can be easily turned. Composition for sealing crown caps contains from 20 to 70 wt % thermoplastic rubber, which is a linear copolymer of 70/30 butadiene and styrene, polymerised in solution, and from 80 to 30 wt % thermoplastic polymer. Thermoplastic polymer is chosen from a group consisting of polypropylene and a mixture of polyethylene and ethylene vinyl acetate copolymer.

EFFECT: improved holding of internal pressure, easier removal of hermetic seal when using the container.

18 cl, 10 ex

FIELD: chemistry.

SUBSTANCE: invention refers to making a moulded product for handling clean-room materials, intermediate products or end products, such as a container, a tray and a tool. The moulded product is made of resin compound prepared by mixing in melt cycloolefine polymer (A) 100 weight fractions chosen from the group including bicyclo[2.2.1]-2-heptene and its derivatives, tricyclo [4,3,0,12,5]-3-decene and its derivatives, and tetracyclo[4,4,0,12,5,17,10]-3-dodecene and its derivatives of vitrification temperature within 60 to 200°C, and amorphous or low-crystalline elastic copolymer (B(b1)) 1 to 150 weight fractions. Copolymer (B(b1)) is polymerised from at least two monomers chosen from the group including ethylene and a-olefin with 3 to 20 carbon atoms and vitrification temperature 0°C or lower. The compound contains radical polymerisation initiator 0.001 to 1 weight fractions containing peroxide, and polyfunctional compound (D) 0 to 1 weight fractions. The compound (D) has at least two radical-polymerised functional groups chosen from the group including vinyl group, allylic group, acrylic group and methacrylic group in a molecule.

EFFECT: clean-room moulded product is characterised with good chemical stability, heat resistance and dimensional accuracy, it prevents volatile component release in the surrounding space, has good abrasion resistance and prevents particle formation.

19 cl, 1 tbl, 2 dwg, 12 ex

FIELD: chemistry.

SUBSTANCE: said invention relates to rubber-reinforced vinylarene polymers. Rubber-reinforced vinylarene (co)polymers are described. They have strictly bimodal morpholgy and consist of 55-90 wt % of rigid polymer matrix and 10-45 wt % of rubber-like phase dispersed in the said rigid polymer matrix in the form of grafted and occluded particles. The said rubber particles consist of 60-99 wt % of capsular, or "coat-core" type, particles and 1-40 wt % of "salami"-type particles, percent ratios being specified for rubber particles weight only. Difference between Hildebrand solubility parameter of elastomer, which forms rubber-like "capsular" particles and Hildebrand solubility parameter of elastomer, which forms "salami"-type particles, is 0.5 or over, mean diameter of "coat-core" type particles is 0.10 to 0.30 mcm, and mean diameter of "salami"-type particles is 1 to 5 mcm. Also, continuous process for production of bulk and suspended rubber-reinforced vinylarene (co)polymers is described.

EFFECT: production of rubber-reinforced vinylarene polymers, which contain particles of strictly bimodal distribution, with improved mechanical properties.

15 cl, 4 dwg, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention concerns nanocomposite with low permeability, which can be applied in manufacturing of air bladders. Nanocomposite includes clay and halogenated elastomer including links derived from C4-C7 isoolefin where the halogenated elastomer includes also monomer link functionalised by amine. Monomer link functionalised by amine corresponds to a definite group linked to elastomer E, where functional amine group is selected out of ethoxylated amine residues of definite structure. Invention also concerns nanocomposite including clay, halogenated elastomer with links derived from C4-C7 isoolefin, and functionalised amine; method of nanocomposite preparation involving composition of clay, halogenated elastomer with links derived from C4-C7 isoolefin, and functionalised amine. Invention also concerns tyre tube or inner tyre shell including these nanocomposites; tyre or air bladder for automotive vehicles, including trucks, buses, cars, bikes etc.

EFFECT: low air permeability of finished products out of nanocomposite.

45 cl, 8 tbl

FIELD: chemistry.

SUBSTANCE: present invention pertains to a method of obtaining a resin composition. Description is given of the method of obtaining a resin composition through mixture in a molten mass of 100 weight parts of cyclic olefin polymer (A), whose glass transition temperature ranges from 60 and 200°C, and 1-150 weight parts of elastic polymer (B), with glass transition temperature 0°C or lower. Part of the cyclic olefin polymer (A) is first mixed in a molten mass with elastic polymer (B) and 0.001-1 weight parts of radical polymerisation initiator (C). The remaining cyclic olefin polymer (A) is then added and mixed in the molten mass. The ratio of the quantity of cyclic olefin polymer (A), initially added, to the quantity of the same polymer added later (initially added/added later) ranges from 1:99 to 70:30. Cyclic olefin polymer (A) is divided into two parts and added separately twice, such that, the mixture with a cross-linked structure can be diluted with cyclic olefin polymer (A), without a cross-linked structure. As a result, increase in the viscosity of the molten resin composition can be prevented.

EFFECT: good abrasion resistance and good moulding properties of the molten mass.

15 cl, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: oxidised styrene-butadiene thermoplastic elastomer is used as the bonding agent, which has at its ends macromolecules of reactive carboxyl or hydroxyl groups, with a prevalence of the later; as the hardening agents of the polyisocyanates with a fraction of the total mass of the isocyanate groups not less than 30%, as the filler fine-dispersed mineral powders or pigments, as the modifying components - micro-reinforcing filler - wollastonite, as the plasticiser - dibutyl phthalate, additionally added is a curing agent - oil-thallous siccative and a stabiliser - styrenated diphenylamine BTC-150 or BC-30A; with the following ratio of components by mass %: oxidised styrene-butadiene thermoplastic elastomer 52.0-60.0; hardening agent polyisocyanate 7.0-9.0; hardening agent siccative 1.2-1.7; filler - fine-dispersed mineral powder or inorganic pigments 20.0-29.0; plasticiser - dibutyl phthalate 0.6-0.8; modified additive - wollastonite 6.0-8.0; phenol type stabiliser BTC-150 BC-30A 1.2-1.5, and the composition does not contain any organic solvents.

EFFECT: reduction in the shrinking deformation, increasing hardness, lowering the temperature of using the composition.

1 cl, 2 tbl, 13 ex

FIELD: composite materials.

SUBSTANCE: invention relates to nanocomposite comprising (i) clay; (ii) copolymer constituted by units derived from C4-C7-isomonoolefin, units derived from p-methylstyrene, and units derived from p-halomethylstyrene; or butylrubber constituted by units derived from C4-C7-isoolefin, units derived from multiolefin, and units derived from halogenated multiolefin; and (iii) one or several stratifying additives including amine, said stratifying additive being present in nanocomposite in amount between 0.1 and 20%. Nanocomposite is applicable for manufacturing internal shells for tires and inner tubes for automotives, including trucks and other vehicles for transportation loads and/or passengers.

EFFECT: reduced air permeability of nanocomposite products.

18 cl, 5 tbl

FIELD: chemical industry; production of the production of nanocomposites with the low permeability.

SUBSTANCE: the invention is pertaining to the nanocomposite including at least the first phase and the second phase, at that the first phase includes: the mixture of the interpolymer having the links, derived from the isomonoolefin with С47, the links derived from the vapor-methylsterene and the links derived from the vapor-halomethylsterene, with the clay stratified by the alkylamine; the second phase includes at least one thermoplastic structural resin and this second phase also includes the clay stratified by the alkylamine; at that the nanocomposite has permeability for oxygen of no less than 2.0·10-8 cm3 ·mil/m2·24 h·mm Hg. The nanocomposite is applicable for manufacture of the pneumatic diaphragms used at manufacture of the inner shells of motor car tires (including the lorries, autobuses, cars, motorcycles, etc.). The nanocomposites have the improved properties, that is they have the low permeability for oxygen.

EFFECT: the invention ensures, that the nanocomposites have the improved properties, that is they have the low permeability for oxygen.

9 cl, 4 tbl

The invention relates to ionomer polymer mixture, in particular the partially crosslinked thermoplastic and elastomeric polyolefin blends having a low hardness

The invention relates to technologies of polymeric film materials with special mechanical properties, which can be used in the food and processing industries

FIELD: process engineering.

SUBSTANCE: invention relates to techniques of producing high-strength thermosetting films. Proposed method comprises mechanical missing of granules of several types of polyethylene and film extrusion with its subsequent pneumatic expansion. Extrusion rate makes over 18 m/min. Mix of granules contains unimodal low-pressure polyethylene and bimodal high-pressure polyethylene.

EFFECT: optimum ratio of components allow optimum physicochemical parametres and increased strength.

2 dwg, 2 tbl

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