Thermoplastic composition with low light-reflecting power and high impact strength at low temperature

FIELD: chemistry.

SUBSTANCE: composition contains (A) a bisphenol-based homopolycarbonate in amount of 10-90% of the weight of the composition (weight parts), B) 10-90 pt.wt first graft (co)polymer containing a graft copolymerisation base selected from a group consisting of polyurethane, ethylene-vinyl acetate, silicone, ethylene-propylene-diene rubber, ethylene-propylene rubber, acrylate rubber, diene rubber and polychloroprene. When the first graft copolymer contains 3-50% rubber component, and when the graft phase contains 49-96% polymerised monovinyl diene aromatic monomer and 1-48% monoethylene unsaturated polar monomer, wherein the percentage relates to the weight of the first graft (co)polymer. The composition also contains 1-20 pts.wt linear polymer (C) with glycidyl ester functional groups, containing repeating units based on one or more glycidyl ester monomers. The composition contains 1-20 pts.wt second graft (co)polymer (D) containing a nucleus and a shell. The molecular structure of the nucleus includes an all-permeating mesh structure made from poly(meth)alkyl acrylate. The shell is made by polymerising methyl methacrylate.

EFFECT: low light-reflecting power and high impact strength at low temperatures.

17 cl, 2 tbl

 

The scope of the invention

The invention relates to thermoplastic compositions, in particular for melting a composition containing an aromatic polycarbonate.

Technical background of invention

Known acquired by commercial containing aromatic thermoplastic polycarbonate composition comprising in addition an elastomeric modifier impact strength. Also known polycarbonate compositions with low reflective ability.

This area is U.S. patent No. 4460733, which describes polycarbonate composition with a low reflective ability; it is a composition containing silica, which is characterized by an average particle size and the corresponding specific surface area. U.S. patent No. 4526926 refers to a mixture of carbonate polymers with low reflective ability, which contains a modified copolymer rubber as Acrylonitrile-butadiene-styrene copolymer. Thermoplastic mixtures with low reflective ability, containing polycarbonate, Acrylonitrile-butadiene-styrene copolymer and impact modifier, the viscosity of the grafted polymer is presented in U.S. patent No. 4677162. The content of polybutadiene in Acrylonitrile-butadiene-styrene copolymer is from 1 to 18%, and the average the size of its particles exceed 0,75 µm, the average particle size of the modifier toughness grafted polymer does not exceed 0,75 µm.

Thermoplastic compositions with low reflective ability and good physical properties, containing a mixture of polycarbonate with Acrylonitrile-styrene-acrylate-interpolymers and which provides lower reflective capacity number of glycidyl(meth)acrylate copolymer, presented in U.S. patent No. 4885335. U.S. patent No. 4902743 relates to thermoplastic blends with low reflective ability, which contains an aromatic carbonate polymer, Acrylonitrile-butadiene-styrene copolymer and polymer glycidylmethacrylate. Thermoplastic hot melt composition giving them a matte surface or processed to reduce reflective ability of a surface containing a mixture of polycarbonates obtained by the emulsion polymerization of grafted Acrylonitrile-butadiene-styrene polymer and a poly(epoxide) is described in U.S. patent No. 5026777 and patent Canada No. 2033903.

The main provisions of the invention

The invention relates to thermoplastic compositions suitable for the manufacture of products with a low reflective ability and with good resistance to impact at low temperatures. The composition contains

A) from 10 to 90% (parts by weight) aroma is practical (co)poly(ether)carbonate based on the weight of the composition,

B) from 10 to 90 parts by weight of a first graft (co)polymer containing the basis for the graft copolymerization selected from the group consisting of polyurethane, ethylene vinyl acetate, silicone, ethylene-propylene-diene rubbers, ethylene-propylene rubbers, acrylate rubbers, diene rubbers, polychloroprene, and a grafted phase,

B) from 1 to 20 parts by weight of a linear polymer with functional groups pilgramage of ester comprising recurring structural units based on one or more glycidyloxy ester monomers,

D) from 1 to 20 parts by weight of a second graft (co)polymer containing nuclear and shell component, and nuclear component contains a branched network structure of polyalkyl(meth)acrylate and polyorganosiloxane and shell component contains poly(meth)acrylate.

A detailed description of the invention

Corresponding to the invention is a thermoplastic composition suitable for the manufacture of products, which are characterized by low reflective capacity for 60° and good impact strength at low temperature. The composition includes

(A) from 10 to 90, in the preferred case from 30 to 80% (parts by weight) aromatic (co)poly(ether)carbonate based on the weight of the composition,

(B) from 10 to 90, in predpochtitel the nom case from 15 to 70 parts by weight of a first graft (co)polymer, contains the basis for the graft copolymerization selected from the group consisting of polyurethane, ethylene vinyl acetate, silicone, ethylene-propylene-diene rubbers, ethylene-propylene rubbers, acrylate rubbers, diene rubbers, polychloroprene, and a grafted phase,

(C) from 1 to 20 parts by weight of a linear polymer with functional groups pilgramage of ester comprising recurring structural units based on one or more glycidyloxy ester monomers,

(D) from 1 to 20, in the preferred case from 1 to 10 parts by weight of a second graft (co)polymer containing nuclear and shell component, and nuclear component contains a branched network structure of poly(meth)alkylacrylate and polyorganosiloxane and shell component contains poly(meth)acrylate.

(A) Aromatic (co)poly(ether)carbonates

The concept of an aromatic (co)poly(ether)carbonates refers to homopolymerization, copolycarbonates, including polifonia polycarbonates. These materials are widely known and they can be purchased commercially. (Co)poly(ether)carbonates can be obtained by known methods, including the method of transesterification in the melt and the way interfacial polycondensation (see, for example, the book Schnell, "Chemistry and Physics of Polycarbonates" Interscience Publishers, 1964), they can be purchased commercially, for example under the trademark Makrolon® production Voeg MaterialScience.

Aromatic dihydroxyl compounds that are suitable for the preparation of aromatic (co)poly(ether)carbonates (in this case they correspond to the polycarbonates), represented by formula (I)

where a means a single bond, alkylenes group with the number of carbon atoms from one to five, alkylidene group with the number of carbon atoms from two to five, cycloalkylcarbonyl group with the number of carbon atoms from five to six, an oxygen atom, a group-SO-, -CO-, -S-, -SO2-, Allenova group with the number of carbon atoms from six to twelve, which may be condensed with other aromatic rings, which may include heteroatoms, or denotes a radical corresponding to the formula (II) or (III)

In the meaning of the substituents, which independently of each other represent an alkyl group with the number of carbon atoms ranging from one to twelve, in the preferred case means methyl group,

x independently of each take on the values 0, 1 or 2,

R means 1 or 0, and

R5and R6selected for each X1individually, each of them independently of the means a hydrogen atom or alkyl group with carbon atoms of from one to six, in the preferred case is a hydrogen atom, a methyl or ethyl group,

X1means a carbon atom and

m means an integer from 4 to 7, in the preferred case means 4 or 5, provided that R5and R6at least one atom X1simultaneously denote alkyl groups.

Preferred aromatic dihydroxyphenyl compounds are hydroquinone, resorcinol, dihydroxydiphenyl, bis(hydroxyphenyl)substituted alkanes with the number of carbon atoms from one to five, bis(hydroxyphenyl)substituted cycloalkanes with the number of carbon atoms from five to six, bishydroxyethyl ethers, bis(hydroxyphenyl)sulfoxidov, bis(hydroxyphenyl)ketones, bis(hydroxyphenyl)sulfones and α,α-bis(hydroxyphenyl)diisopropylbenzene. In particular, the preferred aromatic dihydroxyphenyl compounds are 4,4'-dihydroxydiphenyl, bisphenol a, 2,4-bis-(4-hydroxyphenyl)-2-methylbutane, 1,1-bis-(4-hydroxyphenyl)cyclohexane, 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, 4,4'-dihydroxydiphenylsulfone, 4,4'-dihydroxydiphenyl-sulfon. Particular preference is given to 2,2-bis-(4-hydroxy-phenyl)propane (bisphenol a). These compounds can be used both in pure form and as mixtures containing two or more aromatic dihydroxyl connections.

Among the DL means the breakage of the circuit, suitable to obtain polycarbonates include phenol, n-chlorophenol, n-tert-butylphenol, as well as long-chain ALKYLPHENOLS, such as 4-(1,3-TETRAMETHYLBUTYL)-phenol or monoalkylphenol or dialkylphenols with the total number of carbon atoms in the alkyl substituents of from eight to twenty, for example 3,5-di-tert-butylphenol, n-isooctylphenol, n-tert-op, n-dodecylphenol, and 2-(3,5-dimethylheptyl)phenol and 4-(3,5-dimethylheptyl)phenol. In General, the amount of funds used for chain termination ranges from 0.5% to 10% based on the total number of moles used digitoxigenin connections.

The polycarbonates may be attached to a branched structure by known methods, in the preferred case, this is achieved by embedding compounds with functional groups of three or more, for example compounds with three or more phenolic groups, in amounts of from 0.05 to 2.0% based on the number of moles used aromatic dihydroxyl compounds. Aromatic polyester polycarbonates are known. Such suitable resins are presented in U.S. patent No. 4334053 and No. 6566428, as well as in the patent Canada No. 1173998, which are included in these materials as references.

In a number of dihalogenide aromatic dicarboxylic acids for the preparation of aromatic polyester polycarbonates consists of dihl rigidity isophthalic acid, terephthalic acid, diphenyloxide-4,4'-dicarboxylic acid and naphthalene-2,6-dicarboxylic acid. In particular, preference is given to mixtures of dichlorohydrin isophthalic acid and terephthalic acid in a ratio of from 1:20 to 20:1. Upon receipt of suitable polyester polycarbonates can be used a means for the formation of a mesh structure, for example such anhydrides of carboxylic acids with three or more functional groups, as trichlorohydrin criminology acid, trichloride cyanuric acid, tetrachlorinated 3,3',4,4'-benzophenonetetracarboxylic acid, tetrachlorinated 1,4,5,8-naphthalenemethanol acid or tetrachlorinated pyromellitic acid, in amounts from 0.01 to 1 mole. % (based on dichlorohydrin used dicarboxylic acids), or phenols with three or more functional groups, as phloroglucin, 4,6-dimethyl-2,4,6-tri-(4-hydroxyphenyl)-hepten-2,4,4-dimethyl-2,4,6-tri-(4-hydroxyphenyl)heptane, 1,3,5-Tris-(4-hydroxyphenyl)-benzene, 1,1,1-Tris(4-hydroxyphenyl)-ethane, Tris(4-hydroxyphenyl)-phenylmethane, 2,2-bis-[4,4-bis-(4-hydroxyphenyl)-cyclohexyl]-propane, 2,4-bis-(4-hydroxyphenyl-isopropyl)-phenol, Tetra-(4-hydroxyphenyl)-methane, 2,6-bis-(2-hydroxy-5-methylbenzyl)-4-METHYLPHENOL, 2-(4-hydroxyphenyl)-2-(2,4-dihydroxyphenyl)-propane, Tetra-[4-(4-hydroxyphenyl-isopropyl)-phenoxy]-methane, 1,4-bis-4,4'-dihydroxydiphenyl)-methyl)-benzene, in quantities from 0.01 to 1.0 mole.% based on the used divinely. Phenolic education net patterns can be loaded into the reactor together with diphenolate and chloranhydride education net patterns can be entered together with dichlorohydrin acids.

The content of carbonate structural units in thermoplastic aromatic polyester-polycarbonates can be up to 99 mole.%, in particular, up to 80 mole.%, in the preferred case, up to 50 mole% of based on the sum of ester groups and carbonate groups. Both ester and carbonate components contained in the aromatic polyester-polycarbonate can be present in the polycondensation product in the form of blocks or they may be distributed in a statistical manner.

In the preferred case, thermoplastic aromatic polycarbonates have a mass-average molecular weight (according to gel permeation chromatography) not less than 25,000, in the preferred case, not less than 26000. In the preferred case, the maximum value of the mass-average molecular weight is 80,000, in the preferred case to 70000, in particular up to 50000 g/mol.

(B) a First grafted (co)polymer

The first grafted (co)polymer constituting component (B) corresponding to the invention of the computer the positions, corresponds to the modified rubber of the copolymer. Such modified rubber (co)polymers are widely known; they can be purchased commercially, however, they include the basis for vaccinations (skeleton) and a grafted phase. These rubber materials may be represented by a polyurethane, ethylene-vinyl acetate, silicone, ethylene-propylene-diene rubbers, ethylene-propylene rubbers, acrylate rubbers, diene rubbers, polychloroprene and the like. In the preferred case, the rubber is a diene rubbers or mixtures of diene rubbers, i.e any koutsokoumnis polymer (polymer with a transition temperature of the second order is not higher than 0°C, in the preferred case of not higher than -20°C in accordance with ASTM D-746-52T) on the basis of one or more conjugated 1,3-dienes. The number of such rubbers include homopolymers of 1,3-dienes, and copolymers and interpolymer 1,3-dienes with one or more copolymerizing monomers, for example with monoethylene unsaturated polar monomers and/or monolinoleate aromatic monomers.

In the framework of the present invention, the polar monomer is a polymerizable ethylene unsaturated compound bearing a polar group with a dipole moment in the range from about 1.4 to 4.4 units of Debye defined in the under C.P.Smyth, Dielectric Behavior and Structure, McGraw-Hill Book Company, Inc., New York (1955). Examples of polar groups are the groups-CN, -NO2, -CO2H, -OH, -Sh, -CL, -NH2and-och3. In the preferred case of the polar monomer represented by such ethylene unsaturated nitrile as Acrylonitrile and Methacrylonitrile, with special preference is given to Acrylonitrile. Examples of other such polar monomers include α,β-unsaturated ethylene carboxylic acids and their anhydrides, and alkalemia, aminoacylase and hydroxyalkyl esters, such as acrylic acid, methacrylic acid, taconova acid, maleic anhydride, acrylate, butyl acrylate, methyl methacrylate, hydroxyethyl - and hydroxypropylmethacrylate, aminoaciduria and the like.

Examples monomineralic aromatic monomers are styrene, α-alkyl-monolinoleate monoaromatic compounds (e.g., α-methylsterols, α-atillery, α-methylvinylether, α-metaldielectric and others), substituted at the core of alkylthiol (for example, ortho-, meta - and para-vinyltoluene, o-atillery, n-atillery, 2,4-dimethylstyrene, n-tert-butalbiral and others), substituted at the core of halogenation (for example, o-chloresterol, n-chloresterol, o-Postira, 2,4-dichloro-styrene, and other), and halogensubstituted alkyl substituted in the nucleus sterols (for example, 2-chloro-4-methylsterol, 2,6-dichloro-4-methylsterol and others), vinylnaphthalene, vinylanthracene and others. If necessary can be used mixtures of such monomineralic aromatic monomers. In particular, preference is given to styrene and mixtures of styrene with α-methylstyrene.

The modified copolymer rubber may also contain a relatively small amount, usually a positive number which does not exceed about 2% by weight based on the rubber component, of such funds for the education of a mesh structure, as divinylbenzene, diallylmalonate, diallylphthalate, diallylamine, allylacetate, dimethacrylate of ethylene glycol and the like, provided that the resulting formation of a mesh structure has no adverse effect on the elastomeric properties of this rubber components.

Modified rubber component contains a statistical copolymer nonoverridable aromatic monomer and a polar co monomer, grafted rubber or forming block copolymers with copolymerizable mixture nonoverridable aromatic monomer and a polar co monomer. Preferably, when the process of obtaining a modified rubber copolymer is a process of polymerization in bulk or in bulk and in suspension. Such processes are provided in U.S. patents№3509237, №3660535, №3243481, №4221833 and no 4239863 that VK is uceni in these materials as references. Such large rubber particles typically have a size of from about 0.8 to about 6, in the preferred case from about 0.9 to about 4 microns according to electron Micrography bandwidth.

And yet less preferred in this context are modified rubber copolymers obtained by using the emulsion method, are also presented in U.S. patent No. 3551370, No. 3666704, No. 3956218 and No. 3825621, which are included in these materials as references.

Relevant to the present invention modified rubber copolymers contain from 3 to 50, in the preferred case from 5 to 25% by weight of the rubber components, from 49 to 96, in the preferred case from 50 to 90% by weight nonoverridable aromatic monomer and from 1 to 48, in the preferred case from 5 to 25% by weight monoethylene unsaturated polar monomer.

The preferred embodiment presents Acrylonitrile-butadiene-styrene resin obtained in the preferred case, the polymerization in bulk and suspension, characterized in that the content of the polybutadiene is from about 5 to 20% by weight, more preferred case about 8 to 18% by weight, and the size of its particles is in the range from about 0.3 to 6 microns, in the preferred case from 0.4 to 5.5 microns, more preferred case ot,8 to 5 microns and in the most preferred case from 3.5 to 5 microns.

(C) Linear glycidyloxy ester

Component (C) is a linear polymer with functional groups pilgramage of ester comprising recurring structural units based on one or several glycidyloxy ester monomers. Glycidyloxy ester polymer can be a polymer, copolymer or terpolymer. Glycidyloxy ester monomer is glycidyloxy ether such α,β-unsaturated carboxylic acids, such as acrylic acid, methacrylic acid, taconova acid; these include, for example, glycidylmethacrylate, glycidylmethacrylate, glycidylether. Suitable glycidyloxy ester polymers, which can be used in accordance with the present invention include modifiers for toughness on the basis of glycidyloxy esters described in U.S. patent No. 5981661 included in these materials as a reference. In the preferred case glycidyloxy ester polymer includes at least one repeating structural unit resulting from polymerization pilgramage ester monomer, and at least one repeating structural unit formed by polymerization of α-olefin monomers such as ethylene, propylene, 1-butene, 1-PE is tena. In the preferred case glycidyloxy ester monomer represented by glycidylmethacrylate or glycidylmethacrylate.

Suitable linear polymers with functional groups glycidyloxy esters may contain minor amounts, i.e. up to about 50 wt.%, repeating structural units on the basis of one or more other monoethylene unsaturated monomers, which react copolymerization with glycidyloxy ester monomer. Used in this context, the concept of "monoethylene unsaturated" refers to the presence in the molecule of a single unsaturated ethylene group. Among the suitable copolymerizate monoethylene unsaturated monomers include, for example, vinyl aromatic monomers, such as styrene and vinyltoluene such vinyl esters, such as vinyl acetate and finalproject, and such alkyl(meth)acrylates with the number of carbon atoms in the alkyl groups of from one to twenty, as, for example, butyl acrylate, methyl methacrylate, cyclohexylmethyl. Used herein, the term alkyl groups with carbon atoms of from one to twenty refers to linear or branched alkyl group with the number of carbon atoms in the group from one to twenty, such as methyl, ethyl, tsiklogeksilnogo group and the term "(meth)acrylate" refers to acrylate compounds and methacrylate compounds.

Suitable glycidyloxy ester copolymers can be obtained by way of conventional copolymerization, initiated by free radicals.

In the preferred case glycidyloxy ester polymers used in accordance with the present invention, are selected from olefin-glycidyl(meth)acrylate polymers, olefin-vinyl acetate-glycidyl(meth)acrylate polymers and olefin-glycidyl(meth)acrylate-alkyl(meth)acrylate polymers. In the most preferred case glycidyloxy polyester polymer selected from random copolymers or terpolymers ethylene, acrylate esters, and glycidylmethacrylate.

In a preferred embodiment, component (C) corresponding to the invention the composition contains a structural unit formed by ethylene, (meth)acrylate and glycidyl(meth)acrylate. It is advisable, when component (C) is terpolymer selected from the group consisting of ethylene/alkylacrylate/glycidylmethacrylate, ethylene/alkylacrylate/glycidylmethacrylate, ethylene/alkylmethacrylamide/glycidylmethacrylate and ethylene/alkylmethacrylamide/glycidylmethacrylate. Preferably, when the alkyl component (meth)acrylate contains from 1 to 10 carbon atoms. In the preferred case alkylacrylate or alkylmethacrylamide polymer in the composition of terpolymer obtained on the basis of m is of tracedata or methacrylate.

The relative amount of these structural units ranging from 1 to 40%, in the preferred case from 5 to 35%, more preferred from 25 to 33% of the (meth)acrylate, 1 to 20%, in the preferred case from 4 to 20%, more preferred case, from 7 to 10% glycidyl(meth)acrylate, preferably, when the ratio in each case involved from 55 to 80% structural units derived from ethylene.

In the preferred case, the component (B) has a melting point of about 65°C. and the softening temperature of Vika less than 38°C measured in accordance with ASTM D-1525 under a load of 1 kg of the Rate of melting, measured at 190°C. under a load of 2.16 kg using method ASTM D 1238, is 6.5 g for 10 minutes In the preferred case Brednikova molecular weight corresponding terpolymer is in the range from 10000 to 70000.

Suitable for the role of components (C) terpolymer corresponding to the structure

can be purchased commercially under the trademark Lotader AX8900 company Arkema.

(G) Second grafted (co)polymer

Second grafted (co)polymer constituting component (G) corresponding to the invention the composition has a nuclear shell structure. It can be obtained in the graft polymerization of alkyl(meth)acrylate and if the need is and copolymerizes vinyl monomer onto a composite rubber core. Composite rubber core comprises a polymer with passing throughout and inseparable pervasive cellular structure, it differs in that its glass transition temperature not higher than 0°C, in the preferred case it is below -20°C, in particular below -40°C. Such suitable grafted (co)polymers are known, they are described in the literature, for example in U.S. patent No. 6362269, No. 6403683 and No. 6780917, all of them are included in these materials as references.

The number of components (G)present in the corresponding invention compositions is from 1 to 20, in the preferred case from 2 to 15, more preferred from 5 to 12 and in the most preferred case, from 7 to 10 parts per 100 parts of weight of resin.

In the preferred case, the kernel presents polysiloxan-alkyl(meth)acrylate polymer with pervasive grid structure, which contains polysiloxane and butyl acrylate.

The shell presents the hard phase obtained in the preferred case, the polymerization of methyl methacrylate. The mass ratio of polysiloxane-alkyl(meth)acrylate hard shell is in the range from 10-90/5 to 15/5-5, in the preferred case from 10-85/7 to 12/7-12.

Rubber core has an average particle size (the value of d50) from 0.05 to 5, in the preferred case from 0.1 to 2 microns, in particular from 0.1 to 1 micron. This average value which can be determined by measurement in an ultracentrifuge (W.Scholtan, .Lange, Kolloid, Z. und Z.Polymere, 250 (1972), 782-1796).

Organopolysiloxane component in the silicone-acrylate composite rubber can be obtained in the process of emulsion polymerization in the result of the interaction of organosiloxane and versatile tool for the formation of a mesh structure. You can also embed in the rubber active in relation to vaccination sites by adding suitable unsaturated organosiloxanes.

In General, organosiloxane has a cyclic structure, with a ring structure in the preferred case, contain from 3 to 6 silicon atoms. Examples include hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, Dodecamethylcyclohexasiloxane, trimethylcyclohexylamine, tetramethylcyclotetrasiloxane, octaphenylcyclotetrasiloxane, which can be used as individual compounds or as mixtures of two or more such compounds. Organosiloxane component is present in the silicone-acrylate rubber in an amount of not less than 70%, in the preferred case, at least 75% based on the weight of the silicone-acrylate rubber.

Appropriate means for the formation of the mesh structure are three - or Tetra-functionalityand silane compounds. Among the preferred examples of the input is t trimethoxyoctylsilane, triethoxysilane, tetramethoxysilane, tetraethoxysilane, Tetra-n-proposition, tetramethoxysilane.

Active in relation to vaccination sites can be introduced into the organopolysiloxane component of the silicone-acrylate rubber by incorporating the compounds corresponding to the following structures:

where R5means methyl, ethyl, sawn or phenyl group,

R6means a hydrogen atom or methyl group,

n means 0,1 or 2, and

p takes values from 1 to 6.

The preferred connection for the formation of structure (GI-1) is a (meth)acryloyloxy. Among the preferred (meth)acryloyloxy includes β-methacryloyloxyethyl-diethoxy-methylsilane, γ-methacryloyloxy-propylketone-dimethylsilane, γ-methacryloxypropyl-dimethoxymethylsilane, γ-methacryloyloxy-propyl-trimethoxysilane, γ-methacryloxypropyl-ethoxymethyl-silane, γ-methacryloxypropyl-diethoxymethylsilane, γ-methacryloyloxyethyl-diethoxy-methylsilane.

Vinylsilane, in particular tetramethyl-tetravinyl-cyclotetrasiloxane, suitable for the formation of structures (GI-2).

n-Vinylphenol-dimethoxymethylsilane suitable for the formation of structures is (GI-3). γ-Mercaptopropyl-dimethoxymethylsilane, γ-mercaptopropyl-methoxydimethylsilyl, γ-mercaptopropyl-diethoxymethylsilane and others are suitable for the formation of structure (GI-4).

The amount of these compounds is up to 10%, in the preferred case from 0.5 to 5.0% (based on the weight of polyorganosiloxane).

Acrylate component in the silicone-acrylate composite rubber can be derived from alkyl(meth)acrylate, funds for education reticulated structure and active in relation to the graft polymerization of the Monomeric structural units.

In a preferred alkyl(meth)acrylates include such alkylacrylate as methyl acrylate, acrylate, n-propylacetate, n-butyl acrylate, 2-ethyl hexyl acrylate, and alkyl methacrylates such as hexyllithium, 2-ethylhexylacrylate, n-laurenmarie, with special preference is given to n-butyl acrylate.

As a means for the formation of a mesh structure can be used multifunctional compounds. These include, for example, of ethylene glycol dimethacrylate, propylene glycol dimethacrylate, dimethacrylate of 1,3-butyleneglycol and dimethacrylate of 1,4-butyleneglycol.

To enable active in relation to vaccination sites can be used as individual compounds or as mixtures of the following compounds: alismataceae, triallyl anurat, triallylisocyanurate, alismataceae. Alismataceae can also be used as a means for the formation of a mesh structure. These compounds may be used in quantities of from 0.1 to 20% based on acrylate rubber component.

Methods of obtaining the silicone-acrylate composite rubbers, the use of which in the relevant invention compositions are preferred, and grafting them monomers are described, for example, in U.S. patent No. 4888388 and No. 4963619, while both of these patents are included in these materials as references.

Graft polymerization based on grafting can be carried out in suspension, dispersion or emulsion. Preference is given to emulsion polymerization by periodic or continuous scheme. Graft polymerization is conducted with free-radical initiators (e.g. peroxides, azo compounds, hydroperoxides, persulfates, perphosphate), it is possible to use anionic emulsifiers are, for example, salts carbarsone, salts of sulfonic acids or organic sulfates.

Grafted shell can be obtained from the

I from 0 to 80%, in the preferred case from 0 to 50%, in particular from 0 to 25% (based on the weight of the grafted membranes), vinyl aromatic compounds or substituted in the nucleus of the vinyl aromatic compounds (e.g., STI is Ola, α-methylstyrene, n-methylstyrene), vinylcyanide (for example, Acrylonitrile, and Methacrylonitrile) and

II from 100 to 20%, in the preferred case from 100 to 50%, in particular from 100 to 75% (based on the weight of the grafted shell) at least one monomer selected from the group consisting of alilovic esters of (meth)acrylic acid with the number of carbon atoms in the alkyl group from 1 to 8 (for example, methyl methacrylate, n-butyl acrylate, tert-butyl acrylate and derivatives (such as anhydrides and imides) of unsaturated carboxylic acids (for example maleic anhydride and N-phenylmaleimide).

In the preferred case of the grafted shell includes one or more alilovic esters of (meth)acrylic acid with the number of carbon atoms in the alkyl group from 1 to 8, in particular methyl methacrylate.

Preferred grafted (co)polymer can be obtained, in particular, from Mitsubishi Rayon Co. Ltd. under the trademark Metablen.

Corresponding to the invention, the composition may also include additives, which are known for their properties in the composition of thermoplastic compositions containing polycarbonates and polyester polycarbonates. They include one or more facilitating sliding of substances, internal lubricants, such as tetrastearate pentaerythritol, nuclearmoose agents, antistatic agents, heat stabilizers, light stabilizers, protection of Hydra is Lisa, fillers and reinforcing agents, colorants or pigments, flame retardant means and means to prevent the formation of droplets during combustion.

Corresponding to the invention compositions can be obtained by conventional means using conventional equipment and conventional methods.

Corresponding to the invention the composition may be used to obtain melts in the implementation of any thermoplastic processes, such as casting from the melt under pressure, extrusion and processes with the blowing of the melt.

The following examples illustrate the invention.

Examples

When receiving serve as examples of compositions used below materials.

Polycarbonate is a mixture containing about 85 wt.% homopolymerisate based on bisphenol a (the flow rate of the melt 13 g for 10 minutes) and 15 wt.% homopolymerisate based on bisphenol a (the flow rate of the melt 38 g for 10 minutes).

The first grafted polymer is obtained by polymerization in mass acrylonitril-butadiene-styrene rubber content polybutadiene rubber, about 15% relative to the weight of resin and with an average particle size of about 3 microns.

Linear glycidyloxy ester copolymer - terpolymer Lotader 8900 production Arkema, containing about 30% of the mass of those who acrylate, 62% by weight of ethylene and 8% weight glycidylmethacrylate with reactive epoxy groups.

Second grafted copolymer of 1 - grafted siloxane methacrylate-butyl acrylate composite rubber containing the shell methyl methacrylate and containing siloxane-butyl acrylate rubber core. The silicon content is about 16 wt.% (Metablen S2001, a product of Mitsubishi Rayon).

Second grafted copolymer of 2 - grafted siloxane methacrylate-butyl acrylate composite rubber containing the shell methyl methacrylate and siloxane-butyl acrylate rubber core. The silicon content is about 81 wt.% (Metablen SX005).

All given as examples of the composition contained 64,51 percent of polycarbonate (the percentage refers to the weight of the composition, in this context, it is represented by the parts of the mass), 30,79 parts by mass of the first grafted polymer and 0.7 part of the mixture normal internal lubrication and thermo stabilizer. This mixture has no serious significance in the context of the invention. This structure is complemented by the six parts of the mass composition of these quantities linear pilgramage ester copolymer and the second grafted (co)polymer.

Obtaining this composition and the melting of test samples carried out in the usual way. The rate of melt flow (MFR) determined according to ASTM D 1238 at 60°C, load 5 kg Indicator gloss 60° is determined in accordance with ASTM D 523, impact strength is determined according to Izod at 1/8" at room temperature and at specified temperatures.

Obtained in these experiments the results are shown forth in the following table.

Table 1.
ComponentsEUR. 1-1EUR. 1-2EUR. 1-3EUR. 1-4Example 1-1Example 1-2Example 1-3
Linear glycidyloxy ester0,00,06,00,03,04,02,0
Second grafted polymer 10,06,00,04,03,02,04,0
MFR26,515,223,9 16,412,413,311,4
Shine for 60°39,152,994,870,136,9to 33.830,9
Impact strength at 20°Cthe 11.613,814,3the 13.413,814,714,0
Impact strength at
-20°C
4,08,23,66,0a 3.94,13,4
Impact strength at
-30°C
4,0of 5.43,15,62,82,83,0
EUR. - example comparison
MFR - speed melt flow

The second privileges accompanied the first polymer, introduced in the composition shown in table 1 compositions, characterized in that it contains silicon in an amount of about 16 wt.%.

Table 2.
ComponentsEUR. 1-1EUR. 2-2EUR. 2-3Example 2-1Example 2-2Example 2-3
Linear glycidyloxy ester0,00.00,02,03,04,0
Second grafted polymer 20,06,04,04,03,02,0
MFR26,516,717,713,312,813,0
Shine for 60°39,141,355,6 27,034,633,0
Impact strength at 20°Cthe 11.614,014,313,613,514,3
Impact strength at
-20°C
4,09,88,0of 5.45.05,8
Impact strength at
-30°C
4,06,75,84,33,74,4
EUR. - example comparison
MFR - speed melt flow

Second grafted polymer, is introduced into the composition shown in table 2 compositions, characterized in that it contains silicon in an amount of about 81 wt.%.

These results show that as a result of the introduction as "the second grafted polymer"and "linear pilgramage of ester" reflective capacity decreases. At the same time, each of these components increases the light is outragouse the ability of the composition. An unexpected positive effect on the indicator reflective capacity is achieved without any noticeable deterioration of the suitability of compositions for processing and without deterioration of impact strength.

The above materials describe in detail the invention for the purpose of illustration, in this regard, it is clear that such details are intended only for this purpose and specialist in this field can develop variations that do not depart from the spirit and essence of the invention, the scope of the claims which are presented in the claims.

Thermoplastic molded composition containing
(A) from 10 to 90 weight percent based on the weight of composition (parts by mass) of homopolymerisate based on bisphenol a,
(B) from 10 to 90 parts by weight of a first graft (co)polymer constituting the basis for the graft copolymerization and graft phase, and the basis for the graft copolymerization contains at least one rubber selected from the group consisting of polyurethane, ethylenevinylacetate, silicone, ethylene-propylene-diene, ethylene-propylene, acrylate, diene rubbers, polychloroprene, and the first grafted (co)polymer contains from 3 to 50% rubber components and grafted phase contains from 49 to 96% polymerized nonoverridable aromatic monomer and from 1 to 48% polymerized is onetreohog unsaturated polar monomer, while the percentages relate to the weight of the first grafted (co)polymer,
(B) from 1 to 20 parts by weight of a linear polymer with functional groups pilgramage of ester comprising recurring structural units based on one or more glycidyloxy ester monomers,
(D) from 1 to 20 parts by weight of a second graft (co)polymer containing a core and a shell, and the molecular structure of the kernel includes pervasive network structure of poly(meth)alkylacrylate, where the alkyl(meth)acrylate choose compound from the group consisting of methyl acrylate, the acrylate, n-propylacetate, n-butyl acrylate, 2-ethyl hexyl acrylate, hexyllithium, 2-ethylhexylacrylate, n-laurenmarie, while
particular preference is given to n-butyl acrylate, and polyorganosiloxane and the shell contains polyalkylacrylate with 1 to 8 carbon atoms in the alkyl group.

2. The composition according to claim 1, when the rubber has a transition temperature of the second order is not more than 0°C in accordance with ASTM D-746-52T.

3. The composition according to claim 1, when the rubber is selected from the group consisting of homopolymers of 1,3-dienes, copolymers and interpolymers 1,3-dienes with one or more copolymerizing monomers.

4. The composition according to claim 1, when the rubber is crosslinked rubber.

5. The composition according to claim 1, when the first grafted (co)poly the EP is an Acrylonitrile-the best choice resin.

6. The composition according to claim 5, when Acrylonitrile is the best choice resin is a product of suspension polymerization in mass.

7. The composition according to claim 6, when Acrylonitrile is the best choice resin is characterized by the content of the polybutadiene of from about 5 to 20% and the fact that the size of its particles is in the range from 0.3 to 6 μm.

8. The composition according to claim 1, when the linear glycidyloxy ether is a compound selected from the group consisting of glycidylmethacrylate and glycidylmethacrylate.

9. The composition according to claim 1, when glycidyloxy ester polymer includes at least one repeating structural unit resulting from polymerization pilgramage ester monomer, and at least one repeating structural unit resulting from polymerization of α-olefin monomer.

10. The composition according to claim 9, where the α-olefin monomer is a compound selected from the group consisting of ethylene, propylene, 1-butene and 1-pentene.

11. The composition according to claim 1, when the linear ester polymer with glycidyloxy functional groups contains up to about 50% based on its weight of repeating structural units on the basis of at least one compound selected from the group consisting of vinyl aromatic monomers in nalnyh esters and alkyl(meth)acrylates with the number of carbon atoms in the alkyl groups of from 1 to 20.

12. The composition according to claim 1, when ester polymer with glycidyloxy functional groups selected from the group consisting of olefin-glycidyl(meth)acrylate polymers, olefin-vinyl acetate-glycidyl(meth)acrylate polymers and olefin-glycidyl(meth)acrylate-alkyl(meth)acrylate polymers.

13. The composition according to item 12, when ester polymer with glycidyloxy functional groups contains structural units based on ethylene, (meth)acrylate and glycidyl(meth)acrylate.

14. The composition according to item 13, when ester polymer with glycidyloxy functional groups is terpolymer selected from the group consisting of ethylene/alkylacrylate/glycidylmethacrylate, ethylene/alkylacrylate/glycidylmethacrylate, ethylene/alkylmethacrylamide/glycidylmethacrylate and ethylene/alkylmethacrylamide/glycidylmethacrylate.

15. The composition according to claim 1, when the core contains penetrating throughout the volume of the mesh structure of polymethylacrylate and polysiloxane.

16. The composition according to item 15, when the shell is obtained by polymerization of methyl methacrylate.

17. The composition according to claim 1 also containing at least one compound selected from the group consisting of facilitating the sliding of substances internal lubricants, nuclearpower agents, antistatic agents, thermal stabilizers, light stabilizers, funds to protect against hydrolysis, fill the her sealing agents, coloring agents, pigments, flame retardant and means for preventing the formation of droplets during combustion.



 

Same patents:

FIELD: chemistry.

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

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

13 cl, 1 dwg, 1 tbl, 5 ex

FIELD: transport.

SUBSTANCE: invention relates to hybrid parts or low-weight parts with cavities consisting of cup-like base reinforced by thermoplastic materials. The latter contain 10-99.99 wt % of, at least, one partially crystalline thermoplastic polymer and 0.01-50 wt % of, at least, one olefin copolimerisate with one ether of methacrylic acid or ether of acrylic acid of aliphatic alcohol. Fluidity index of copolimerisate melt makes, at least, 100 g/10 min.

EFFECT: higher breaking strength, hardness and durability.

4 cl, 3 dwg, 4 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a thermoplastic moulding composition which is flame retardant and impact resistant. The thermoplastic moulding composition for making moulded articles contains aromatic polyester carbonate, polyalkylene terephthalate, graft copolymer having a nucleus-shell morphology, having a graft shell which contains polymerised alkyl(meth)acrylate, and a nucleus made from composite rubber which contains interpenetrating and inseparable polyorganosiloxane and poly(meth)alkyl acrylate components in form of particles having size from 0.05 to 5 mcm and glass transition temperature lower than 0°C, and where the weight ratio polyorganosiloxane/poly(meth)alkyl acrylate/hard shell equals 70-90/5-15/5-15, and a phosphorus-containing compound (IVa), where R1, R2, R3 and R4 denote phenyl, R5 denotes hydrogen, n equals 1, q ranges from 1 to 2, Y denotes C(CH3)2 and fluorinated polyolefin.

EFFECT: high resistance to inflammation and impact strength.

8 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a thermoplastic and scratch-resistant polymer composition for making articles used in construction, instrument making, aircraft construction, motor transport and lighting technology. The composition contains 100 pts.wt polycarbonate and 1.0-1.2 pts.wt mixture of hydrophobic silicon dioxide and aluminium trioxide in weight ratio from 1:1 to 1:2, respectively. The composition can additionally contain 0.2-0.25 pts.wt hafnium dioxide per 100 pts.wt polycarbonate. The oxide nanoparticles have size of 7-13 nm.

EFFECT: invention enables to obtain a composition using a simple technique, having high abrasive wear resistance and high transparency.

3 cl, 1 tbl, 19 ex

FIELD: chemistry.

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

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

12 cl, 1 tbl, 7 ex

FIELD: chemistry

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

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

6 cl, 1 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: composition contains the following in pts.wt: A) 40-78 branched aromatic polycarbonate and/or branched aromatic polyether carbonate; B) 1-25 graft copolymer; C) 9-18 talc; D) 11-20 oligophosphate based on bisphenol A as phosphorus-containing fire-retardant agent; E) 0-3 polytetrafluoroethylene as an additive for preventing droplet formation, and F) 0-1.5 thermoplastic vinyl (co)polymer and/or polyalkylene terephthalate. Copolymer (B) is obtained from B.1) 5-95 wt % one or more vinyl monomers per B.2) 95-5 wt % one or more graft bases selected from silicon rubber (B.2.1) and silicon-acrylate rubber (B.2.2), wherein the graft base has glass transition temperature lower than 10°C.

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

11 cl, 1 tbl, 20 ex

FIELD: chemistry.

SUBSTANCE: composition contains the following in %: a) 35-78% aromatic polycarbonate, b) 6-55% thermoplastic polyester - polyethylene terephthalate, c) 5-15% halogenated acrylate, d) 3-15% impact resistance modifier, e) 2-15% phosphate-containing compound and f) 0.05-0.5% fluorinated polyolefin. The acrylate contains repeating structural units of the following formula: in which R1, R2, R3, R4 and R5 denote hydrogen, alkyl or aryl, n ranges from 0 to 5, m ranges from 10 to 10000, and R denotes halogen. The phosphate-containing compound is selected from a compound of formula (III) O-P-[-OCH2C(CH2Br)3]3 (III) and compounds of formula , in which R1, R2, R3 and R4 denote C1-C8-alkyl, C5-C6-cycloalkyl, C6-C20-aryl or C7-C12-aralkyl, unsubstituted or substituted with alkyl, n equals 0 or 1, N equals 0.1-30, X denotes a mono- or polycyclic aromatic residue with C6-C30 or a linear or branched aliphatic residue with C2-C30.

EFFECT: invention enables to obtain a composition with higher impact resistance and fire resistance.

3 cl, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: film consists of at least one layer. The layer contains the following in wt %: 80-99.99 transparent polycarbonate and 0.01-20 polymer particles with a "nucleus-shell" structure based on acrylate. The particles have average size ranging from 1 to 100 mcm. The film is co-extruded with thickness from 0.03 to 1 mm. The invention enables to obtain structured films with one shiny side. The surface of the structured film has glossiness from 0.5-20% (EN ISO 2813 standard, angle 60°) and roughness from 3 to 25 mcm (ISO 4288 standard). The shiny side of the film has glossiness more than 50% (EN ISO 2813 standard, angle 60°).

EFFECT: improved film properties.

5 cl, 2 tbl, 10 ex

FIELD: chemistry.

SUBSTANCE: composition contains the following, %: (A) 9.9-99.8 polycarbonate resin based on bisphenol A; (B) 0.1-90 polyethylene terephthalate, and (C) 0.1-30 grafted rubber, as well as 0.1 pts.wt heat stabiliser, 1 pts.wt dye and 0.7 pts.wt UV absorber. The grafted rubber consists of 30-80% substrate and 70-20% solid graft phase. The graft phase is obtained through copolymerisation of a monomer from a first group consisting of styrene, α-methylstyrene, styrene which is halogenated in the ring and styrene which is alkylated in the ring, and a monomer from a second group containing (meth)acrylonitrile and maleic anhydride, with the weight ratio of said monomers ranging from 90:10 to approximately 50:50. The substrate contains the following, %: (C1) 1-50 core of cross-linked polymerised vinyl monomer and (C2) 50-99 shell of cross-linked polymerised acrylate with glass transition point lower than 0°C.

EFFECT: invention enables to obtain articles characterised by intense lustre, high impact strength and absence of tiger stripes.

8 cl, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a thermoplastic moulding composition which is flame retardant and impact resistant. The thermoplastic moulding composition for making moulded articles contains aromatic polyester carbonate, polyalkylene terephthalate, graft copolymer having a nucleus-shell morphology, having a graft shell which contains polymerised alkyl(meth)acrylate, and a nucleus made from composite rubber which contains interpenetrating and inseparable polyorganosiloxane and poly(meth)alkyl acrylate components in form of particles having size from 0.05 to 5 mcm and glass transition temperature lower than 0°C, and where the weight ratio polyorganosiloxane/poly(meth)alkyl acrylate/hard shell equals 70-90/5-15/5-15, and a phosphorus-containing compound (IVa), where R1, R2, R3 and R4 denote phenyl, R5 denotes hydrogen, n equals 1, q ranges from 1 to 2, Y denotes C(CH3)2 and fluorinated polyolefin.

EFFECT: high resistance to inflammation and impact strength.

8 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: composition contains the following in %: a) 35-78% aromatic polycarbonate, b) 6-55% thermoplastic polyester - polyethylene terephthalate, c) 5-15% halogenated acrylate, d) 3-15% impact resistance modifier, e) 2-15% phosphate-containing compound and f) 0.05-0.5% fluorinated polyolefin. The acrylate contains repeating structural units of the following formula: in which R1, R2, R3, R4 and R5 denote hydrogen, alkyl or aryl, n ranges from 0 to 5, m ranges from 10 to 10000, and R denotes halogen. The phosphate-containing compound is selected from a compound of formula (III) O-P-[-OCH2C(CH2Br)3]3 (III) and compounds of formula , in which R1, R2, R3 and R4 denote C1-C8-alkyl, C5-C6-cycloalkyl, C6-C20-aryl or C7-C12-aralkyl, unsubstituted or substituted with alkyl, n equals 0 or 1, N equals 0.1-30, X denotes a mono- or polycyclic aromatic residue with C6-C30 or a linear or branched aliphatic residue with C2-C30.

EFFECT: invention enables to obtain a composition with higher impact resistance and fire resistance.

3 cl, 1 tbl, 4 ex

The invention relates to the chemistry of polymers, namely to stable compositions based resin plant (ABS) copolymers, which are structural materials

The invention relates to a method for producing a resin plant (ABS) resins

The invention relates to the production of thermoplastic rubber compositions and can be used in rubber industry

The invention relates to the field of thermoplastic rubber compositions and can be used in rubber and rubber industry

Polymer composition // 2058987
The invention relates to polymeric compositions based resin plant (ABS) copolymers, which are widely used as structural materials, for example, for the manufacture of shells audio - and video equipment, computers, telephones, etc

Polymer composition // 2057772
The invention relates to the production of thermoplastic compositions, which can be widely used for the manufacture of structural parts destination with high impact strength in various industries, in particular, in the automotive industry for the manufacture of injection-molded bumpers, grilles radiators, decorative caps, the front panel; electrical engineering for the manufacture of body parts

Polymer composition // 2036206

FIELD: chemistry.

SUBSTANCE: composition contains the following in wt %: 5-80 polyester A copolymer obtained as a result of condensation with itaconic acid; 5-80 (meth)acrylate homopolymer and/or copolymer B consisting of more than 50 wt % monomers of formula I where R1 denotes hydrogen or methyl and R2 denotes an alkyl residue, an aliphatic or aromatic residue with 1-5 carbon atoms and 10-80 graft copolymer from type A polymer and type B polymer (polymer AB). Polyester A has a straight or branched structure with OH number from 5 to 150 mg KOH/g, and acid number less than 10 mg KOH/g, and number-average molecular weight 700-25000 g/mol. Content of itaconic links in the polyester copolymer per total content of polycarboxylic acids ranges from 0.1 mol % to 20 mol %.

EFFECT: invention enables to obtain well compatible polymer structures which do not contain styrene or derivatives thereof, based on a polyester graft polymethacrylate copolymer.

17 cl, 3 tbl, 9 ex

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