EP3697845A1 - Flammwidrige polycarbonat-acrylat-kautschuk-zusammensetzung mit geringem bisphenol-a-gehalt - Google Patents
Flammwidrige polycarbonat-acrylat-kautschuk-zusammensetzung mit geringem bisphenol-a-gehaltInfo
- Publication number
- EP3697845A1 EP3697845A1 EP18731477.8A EP18731477A EP3697845A1 EP 3697845 A1 EP3697845 A1 EP 3697845A1 EP 18731477 A EP18731477 A EP 18731477A EP 3697845 A1 EP3697845 A1 EP 3697845A1
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- Prior art keywords
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- weight
- vinyl
- polymer
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- Prior art date
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F285/00—Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0066—Flame-proofing or flame-retarding additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/12—Copolymers of styrene with unsaturated nitriles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
- C08L69/005—Polyester-carbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
- C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Definitions
- the invention relates to a composition for producing a thermoplastic molding composition comprising an aromatic polycarbonate, aromatic polyester carbonate and / or an aromatic polyester, the use of the composition and a method for producing such a molding composition and the molding compound itself.
- the invention also relates to a molding of the aforementioned molding compound.
- Polycarbonate compositions have been known for a long time. Moldings are produced from these materials for a variety of applications, for example in the automotive sector, for rail vehicles, for the construction sector, in the electrical / electronics sector and in household appliances. By varying the amount and nature of the formulation components, the compositions and thus also the molded articles produced can be adapted in a wide range with respect to their thermal, theological and mechanical properties to the requirements of the respective application.
- the moldings are often produced by injection molding and in such cases it is advantageous if the thermoplastic molding compositions used for this purpose have a good melt flowability in order to enable processing into thin-walled components at a low melt temperature.
- phase compatibilizers for example in the form of copolymers with special functional groups, are often used in order to improve the mechanical properties of moldings produced from the thermoplastic molding compositions.
- phase compatibilizers can change the surface properties and lead to a low degree of gloss, which is partly undesirable.
- EP 1 854 842 B1 discloses styrenic resin compositions containing polycarbonate, a styrene-based resin, for example ABS, a modified styrene-based polymer with vinyl-based monomer units.
- the styrene-based polymer is provided with a functional group selected from carboxyl groups, hydroxyl groups, epoxy groups, amonino groups and oxazine groups.
- the styrenic resin and the polycarbonate have a dispersed structure with a phase separation of 0.001 to 1 pm.
- the compositions are suitable for injection molding, have excellent mechanical properties, flowability, chemical resistance and galvanizability, and are easily rendered flame retardant.
- EP 1 069 156 Bl discloses flame-retardant thermoplastic compositions comprising polycarbonate, styrene graft polymer, styrene copolymer, SAN-grafted polycarbonate or polycarbonate-grafted SAN and phosphoric acid ester.
- the compositions have improved flame resistance and improved mechanical properties and are suitable for electrical and electronic equipment housings.
- JP 2011153294 A describes compositions comprising styrene resin, polycarbonate, polycarbonate-grafted SAN copolymer and fillers in which styrene resin and polycarbonate have a dispersed structure with a phase separation of 0.001 to 1 ⁇ m
- CN 104004333 A, CN 104004331 A and CN 102719077 A disclose PC-ABS compositions comprising a polycarbonate, an acrylonitrile-butadiene-styrene polymer, an impact modifier and a compatibilizer.
- CN 102516734 A discloses flame-retardant PC + ABS compositions with improved surface impact resistance comprising polycarbonate, acrylonitrile-butadiene-styrene polymer, impact modifier, a compatibilizer and a phosphoric acid ester as flame retardant.
- JP 3603839 B2 and JP 3969006 B2 disclose PC + ABS compositions with good injection molding performance and good heat and impact resistance.
- the compositions contain polycarbonate, ABS resin and a graft polymer grafted onto polycarbonate with polystyrene segments.
- it can lead to increased degradation phenomena in the polycarbonate under these processing conditions, which manifests itself in an increased content of phenols, in particular of bisphenol A, in the product.
- the object of the invention was thus to provide a flame-retardant, polycarbonate-containing composition for producing a thermoplastic molding composition, which shows improved mechanical properties, improved flame resistance, in particular good melt stability after thermal storage and hydrolytic stress during processing, and moreover after processing, a lower content of phenols formed by degradation phenomena of the polycarbonate, in particular of bisphenol A, having.
- After processing it is preferable to additionally achieve improved chemical resistance to various media.
- the flow behavior of the molding compositions should not be significantly deteriorated.
- compositions for producing a thermoplastic molding composition wherein the composition contains or consists of at least the following constituents:
- component C has a weight ratio of based on styrene to epoxy group-containing vinyl monomers structural elements of 100: 1 to 1: 1.
- molding compositions of such compositions have good mechanical properties, such as the fracture behavior and the modulus of elasticity. They also have improved flame retardancy with reduced afterburning times and good processability and, after processing under shear, have a lower content of phenols, in particular bisphenol A (BPA), which has arisen due to deterioration of the polycarbonate during processing into the molding material. If the content of component C is chosen too high, this can lead to an undesirable deterioration of the Flow behavior, which may adversely affect the suitability of the molding compositions for injection molding applications.
- BPA bisphenol A
- composition according to the invention contains or consists of the following components:
- Bl. 1 10 to 70 wt .-%, preferably 20 to 60 wt .-%, based on the
- Bl .1.1 70 to 80 wt .-%, based on B l. l, at least one monomer selected from the group consisting of vinylaromatics, ring-substituted vinylaromatics and methacrylic acid (C 1 -C 8) -alkyl esters and
- Bl. l.2) from 20 to 30% by weight, based on B l. l, at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (C 1 -C 8) -alkyl esters and derivatives of unsaturated carboxylic acids on B1.2) 90 to 30 wt .-%, based on the component Bl, at least one elastomeric Acrylate rubber graft base selected from polymers of alkyl acrylates, optionally with up to 40% by weight, based on B 1.2 of other polymerisable, ethylenically unsaturated monomers, where the acrylic esters are preferably selected from C 1 to C 8 alkyl esters, in particular methyl, ethyl , Butyl, n-octyl and 2-ethylhexyl, haloalkyl, especially halo-C 1 -C 8 -alkyl esters, and mixtures of these, and
- Component B2 a mixture of B2.1.1) from 70 to 80% by weight, based on the mixture B2.1, of at least one monomer selected from the group of the vinylaromatics, ring-substituted vinylaromatics and methacrylic acid (C1-C8) -alkyl esters and
- B2.1.2 from 20 to 30% by weight, based on the mixture B2.1, of at least one monomer selected from the group of the vinyl cyanides, (meth) acrylic acid (C 1 -C 8) -alkyl esters and derivatives of unsaturated carboxylic acids
- Component B2 at least one grafting base
- the preferred molding compositions according to the invention are distinguished by an optimized property combination of mechanical properties, good flow behavior, flame retardancy, in particular with thinner wall thicknesses and thermal stability.
- composition according to the invention which consists of or contains the following components:
- Bl.l 10 to 70 wt .-%, preferably 20 to 60 wt .-%, based on the
- Component Bl a mixture of B l.1.1) from 70 to 80% by weight, based on B l. l, at least one monomer selected from the group consisting of vinylaromatics, ring-substituted vinylaromatics and methacrylic acid (C 1 -C 8) -alkyl esters and
- B l. l .2) from 20 to 30% by weight, based on B l. l, at least one monomer selected from the group of vinyl cyanides, (Mefh) acrylic acid (C 1 -C 8) - alkyl esters and derivatives of unsaturated carboxylic acids
- B1.2 90 to 30 wt .-%, based on the component Bl, at least one elastomeric acrylate graft base, selected from polymers of alkyl acrylates, optionally with up to 40 wt .-%, based on B 1.2 other polymerizable, ethylenically unsaturated Monomers, wherein the acrylic acid esters are preferably selected from C 1 to C 6 -alkyl esters, in particular methyl, ethyl, butyl, n-octyl and 2-ethylhexyl esters, haloalkyl esters, in particular halo-C 1 -C 8 -alkyl esters, and mixtures of these, such as
- Vinyl (co) polymer B3 prepared from
- (Co) polymer B3 at least one monomer selected from the group consisting of vinylaromatics, ring-substituted vinylaromatics and (meth) acrylic acid (C 1 -C 8) -alkyl esters and
- (Co) polymer B3 at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (C 1 -C 8) -alkyl esters, unsaturated carboxylic acids and derivatives of unsaturated carboxylic acids,
- composition according to the invention which consists of or contains the following components:
- B l .l 10 to 70 wt .-%, preferably 20 to 60 wt .-%, based on the component B 1, a mixture of
- Bl .1.1 70 to 80 wt .-%, based on B l. l, at least one monomer selected from the group consisting of vinylaromatics, ring-substituted vinylaromatics and methacrylic acid (C 1 -C 8) -alkyl esters and
- Bl. l.2) from 20 to 30% by weight, based on B l. l, at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (Cl-C8) -
- Alkyl esters and derivatives of unsaturated carboxylic acids are Alkyl esters and derivatives of unsaturated carboxylic acids
- B 1.2 90 to 30 wt .-%, based on the component B l, at least one elastomeric acrylate graft base, selected from polymers of alkyl acrylates, optionally with up to 40 wt .-%, based on B 1.2 other polymerizable, ethylenically unsaturated Monomers, wherein the acrylic acid esters are preferably selected from C 1 to C 6 -alkyl esters, in particular methyl, ethyl, butyl, n-octyl and 2-ethylhexyl esters, haloalkyl esters, in particular halo-C 1 -C 8 -alkyl esters, and mixtures of these, such as
- Vinyl (co) polymer B3 prepared from
- (Co) polymer B3 at least one monomer selected from the group of vinylaromatics, ring-substituted vinylaromatics and (meth) acrylic acid (Cl-C8) -
- (Co) polymer B3 at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (C 1 -C 8) -alkyl esters, unsaturated carboxylic acids and derivatives of unsaturated carboxylic acids, C) 3.0 to 6.0 wt .-% of Epoxy-vinyl polymer containing or consisting of structural units derived from styrene and from an epoxide group-containing vinyl monomer,
- Components B 1 and B 3 are independent of each other.
- the preferred molding compositions according to the invention are distinguished by an optimized property combination of mechanical properties, flame resistance and thermal stability under defined storage conditions (temperature and air humidity).
- Polycarbonates in the context of the present invention are both homopolycarbonates and copolycarbonates and / or polyestercarbonates;
- the polycarbonates may be linear or branched in a known manner. According to the invention, it is also possible to use mixtures of polycarbonates.
- thermoplastic polycarbonates including the thermoplastic aromatic polyester carbonates have average molecular weights M w determined by GPC (gel permeation chromatography in methylene chloride with polycarbonate based on bisphenol A as a standard) of from 20,000 g / mol to 50,000 g / mol, preferably from 23,000 g / mol to 40,000 g / mol, in particular from 26,000 g / mol to 35,000 g / mol.
- GPC gel permeation chromatography in methylene chloride with polycarbonate based on bisphenol A as a standard
- a part, up to 80 mol%, preferably from 20 mol% up to 50 mol%, of the carbonate groups in the polycarbonates used according to the invention may be replaced by aromatic dicarboxylic acid ester groups.
- aromatic polyester carbonates Such polycarbonates, which contain both acid residues of carbonic acid and acid residues of aromatic dicarboxylic acids incorporated into the molecular chain, are referred to as aromatic polyester carbonates. They are subsumed in the context of the present invention under the generic term of the thermoplastic, aromatic polycarbonates.
- the preparation of the polycarbonates is carried out in a known manner from diphenols, carbonic acid derivatives, optionally chain terminators and optionally branching agents, wherein for the production of poly- estercarbonate a part of the carbonic acid derivatives is replaced by aromatic dicarboxylic acids or derivatives of dicarboxylic acids, depending on the extent to be replaced in the aromatic polycarbonates Carbonat Designismeen by aromatic Dicarbon Anlagenreester Modelltechniken.
- Dihydroxyaryl compounds suitable for the preparation of polycarbonates are those of the formula (I)
- Z is an aromatic radical having 6 to 30 carbon atoms, which may contain one or more aromatic nuclei, may be substituted and aliphatic or cycloaliphatic radicals or
- Alkylaryl or heteroatoms may contain as bridge members.
- Z in formula (I) preferably represents a radical of the formula (II)
- R 6 and R 7 are independently H, cis to cis-alkyl, cis to cis-alkoxy, halogen as
- X is a single bond, -SO 2 -, -CO-, -O-, -S-, G- to C 6 -alkylene, C 2 - to C 5 -alkylidene or C 5 - to C 6 -cycloalkylidene which is to Cö-alkyl, preferably methyl or ethyl, may be substituted, further for Ce to Ci 2 -arylene, which may be optionally fused with other heteroatom-containing aromatic rings is.
- X represents a single bond, C - C 5 alkylene, C - to C 5 alkylidene, C 5 - to C 6 cloalkyliden -Cy-, -O-, -SO-, -CO-, -S-, -SO 2 - or for a radical of the formula (IIa)
- dihydroxyaryl compounds examples include dihydroxybenzenes, dihydroxydiphenyls, bis (hydroxyphenyl) alkanes, bis (hydroxyphenyl) -cycloalkanes, bis (hydroxyphenyl) -aryls, bis (hydroxyphenyl) ethers, bis (hydroxyphenyl ) -ketones, bis (hydroxyphenyl) sulfides, bis (hydroxyphenyl) sulfones, bis (hydroxyphenyl) sulfoxides, l, l-bis (hydroxyphenyl) -diisopropylbenzenes and their ring-alkylated and ring-halogenated compounds.
- Diphenols suitable for the preparation of the polycarbonates to be used according to the invention are, for example, hydroquinone, resorcinol, dihydroxydiphenyl, bis (hydroxyphenyl) alkanes, bis (hydroxyphenyl) cycloalkanes, bis (hydroxyphenyl) sulfides, bis (hydroxyphenyl) ethers, bis - (hydroxyphenyl) ketones, bis (hydroxyphenyl) sulfones, bis (hydroxyphenyl) sulfoxides, ⁇ , ⁇ '-bis (hydroxyphenyl) diisopropylbenzenes and their alkylated, nuclear-alkylated and ring-halogenated compounds.
- Preferred diphenols are 4,4'-dihydroxydiphenyl, 2,2-bis (4-hydroxyphenyl) -1-phenylpropane, 1,1-bis (4-hydroxyphenyl) phenylethane, 2,2-bis (4-hydroxyphenyl ) propane, 2,4-bis- (4-hydroxyphenyl) -2-methylbutane, 1,3-bis- [2- (4-hydroxyphenyl) -2-propyl] benzene (bisphenol M), 2,2-bis- (3-methyl-4-hydroxyphenyl) -propane, bis (3,5-dimethyl-4-hydroxyphenyl) -methane, 2,2-bis- (3,5-dimethyl-4-hydroxyphenyl) -propane, bis- (3,5-dimethyl-4-hydroxyphenyl) sulfone, 2,4-bis- (3,5-dimethyl-4-hydroxyphenyl) -2-methylbutane, 1,3-bis- [2- (3,5-) dimethyl-4-hydroxyphenyl)
- diphenols are 4,4'-dihydroxydiphenyl, 1,1-bis (4-hydroxyphenyl) -phenyl-ethane, 2,2-bis (4-hydroxyphenyl) -propane (bisphenol A), 2,2-bis (3,5-Dimethyl-4-hydroxyphenyl) propane, 1,1-bis (4-hydroxyphenyl) cyclohexane and 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane (Bisphenol TMC ).
- bisphenol-A 2,2-bis (4-hydroxyphenyl) propane
- the monofunctional chain terminators required to control the molecular weight such as phenols or alkylphenols, in particular phenol, p-tert. Butylphenol, iso-octylphenol, cumylphenol, their chlorocarbonic acid esters or acid chlorides of monocarboxylic acids or mixtures of these chain terminators are either added to the bisphenolate or the bisphenolates of the reaction or added at any time during the synthesis, as long as phosgene or Chlorkohlenquipreend phenomenon in the reaction mixture are present, or in the case of acid chlorides and chloroformate as a chain terminator, as long as enough phenolic end groups of the forming polymer are available.
- the chain terminator (s) are added after phosgenation at one point or at a time when phosgene is no longer present but the catalyst has not yet been metered or are added in front of the catalyst, together with the catalyst or in parallel.
- any branching or debranching compounds to be used are added to the synthesis, but usually before the chain terminators.
- trisphenols, quarterphenols or acid chlorides of tri- or tetracarboxylic acids are used or mixtures of polyphenols or acid chlorides.
- branching compounds having three or more than three phenolic hydroxyl groups include, for example, phloroglucinol, 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) -heptene-2, 4,6-dimethyl-2, 4,6-tris (4-hydroxyphenyl) heptane, 1,3,5-tris- (4-hydroxyphenyl) -benzene, 1,1,1-tri- (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.
- trifunctional compounds are 2,4-dihydroxybenzoic acid, trimesic acid, cyanuric chloride and 3,3-bis (3-methyl-4-hydroxyphenyl) -2-oxo-2,3-dihydroindole.
- Preferred branching agents are 3,3-bis (3-methyl-4-hydroxyphenyl) -2-oxo-2,3-dihydroindole and 1,1,1-tri- (4-hydroxyphenyl) -ethane.
- the amount of optionally used branching agent is 0.05 mol% to 2 mol%, based in turn on moles of diphenols used in each case.
- the branching agents may either be initially charged with the diphenols and the chain terminators in the aqueous alkaline phase or may be added dissolved in an organic solvent prior to phosgenation. All these measures for the preparation of the polycarbonates are familiar to the expert.
- Aromatic dicarboxylic acids which are suitable for the preparation of the polyester carbonates are, for example, orthophthalic acid, terephthalic acid, isophthalic acid, tert-butylisophthalic acid, 3,3'-diphenyldicarboxylic acid, 4,4'-diphenyldicarboxylic acid, 4,4-benzophenone dicarboxylic acid, 3,4'-benzophenone dicarboxylic acid , 4,4'-diphenyl ether dicarboxylic acid, 4,4'-diphenylsulfonedicarboxylic acid, 2,2-bis (4-carboxyphenyl) -propane, trimethyl-3-phenylindane-4,5'-dicarboxylic acid.
- aromatic dicarboxylic acids terephthalic acid and / or isophthalic acid are particularly preferably used.
- Derivatives of the dicarboxylic acids are the dicarboxylic acid dihalides and the dicarboxylic acid dialkyl esters, in particular the dicarboxylic acid dichlorides and the dimethyl dicarboxylates.
- Substitution of the carbonate groups by the aromatic dicarboxylic ester groups is essentially stoichiometric and also quantitative, so that the molar ratio of the reactants is also found in the finished polyester carbonate.
- the incorporation of the aromatic dicarboxylic acid ester groups can be carried out both statistically and in blocks.
- Preferred methods of preparation of the polycarbonates to be used according to the invention, including the polyestercarbonates, are the known interfacial process and the known melt transesterification process (cf., for example, WO 2004/063249 A1, WO 2001/05866 A1, WO 2000/105867, US Pat. No. 5,340,905 A, US Pat. No. 5,097,002 A, US-A 5,717,057 A).
- the acid derivatives used are preferably phosgene and optionally dicarboxylic acid dichlorides, in the latter case preferably diphenyl carbonate and optionally dicarboxylic acid diester.
- Catalysts, solvents, work-up, reaction conditions, etc. for the production of polycarbonate or production of polyester carbonate are adequately described and known in both cases.
- the polycarbonates suitable as component A according to the invention have an OH end group concentration of 50 to 2000 ppm, preferably 80 to 1000 ppm, particularly preferably 100 to 700 ppm.
- component A has phenolic OH groups and the stoichiometric ratio of the epoxide groups of component C) to the phenolic OH groups the component A is at least 1: 1, in particular at least 1.1: 1, preferably at least 1.2: 1, wherein component A preferably a weight fraction of phenolic OH groups from 50 to 2000 ppm, preferably 80 to 1000 ppm, particularly preferably 100 to 700 ppm.
- Eligible polyesters are aromatic in a preferred embodiment, more preferably polyalkylene terephthalates.
- these are reaction products of aromatic dicarboxylic acids or their reactive derivatives, such as dimethyl esters or anhydrides, and aliphatic, cycloaliphatic or aliphatic diols and mixtures of these reaction products.
- Particularly preferred aromatic polyalkylene terephthalates contain at least 80% by weight, preferably at least 90% by weight, based on the dicarboxylic acid component of terephthalic acid residues and at least 80% by weight, preferably at least 90% by weight, based on the diol component of ethylene glycol and / or butanediol -l, 4-residues.
- the preferred aromatic polyalkylene terephthalates may contain, in addition to terephthalic acid residues, up to 20 mole%, preferably up to 10 mole%, of other aromatic or cycloaliphatic dicarboxylic acids having 8 to 14 carbon atoms or aliphatic dicarboxylic acids having 4 to 12 carbon atoms, e.g. Residues of phthalic acid, isophthalic acid, naphthalene-2,6-dicarboxylic acid, 4,4'-diphenyldi-carboxylic acid, succinic acid, adipic acid, sebacic acid, azelaic acid, cyclohexanediacetic acid.
- the preferred aromatic polyalkylene terephthalates in addition to ethylene glycol or
- the aromatic polyalkylene terephthalates can be branched by incorporation of relatively small amounts of 3- or 4-hydric alcohols or 3- or 4-basic carboxylic acids, for example according to DE-A 1 900 270 and US Pat. No. 3,692,744.
- branching agents are trimesic acid, trimellitic acid, trimethylolethane and -propane and pentaerythritol.
- aromatic polyalkylene terephthalates which have been prepared solely from terephthalic acid and its reactive derivatives (eg dialkyl esters thereof) and ethylene glycol and / or 1,4-butanediol, and mixtures of these polyalkylene terephthalates.
- Preferred mixtures of aromatic polyalkylene terephthalates contain from 1 to 50% by weight, preferably from 1 to 30% by weight, of polyethylene terephthalate and from 50 to 99% by weight, preferably from 70 to 99% by weight, of polybutylene terephthalate.
- the aromatic polyalkylene terephthalates preferably used have a viscosity number of 0.4 to 1.5 dl / g, preferably 0.5 to 1.2 dl / g, measured in phenol / o-dichlorobenzene (1: 1 parts by weight) in a concentration of 0 , 05g / ml according to ISO 307 at 25 ° C in the Ubbelohde viscometer.
- the aromatic polyalkylene terephthalates can be prepared by known methods (see, for example, Kunststoff-Handbuch, Volume VIII, page 695 et seq., Carl Hanser Verlag, Kunststoff 1973).
- Aromatic polycarbonate based on bisphenol A is most preferably used as component A.
- Component B Aromatic polycarbonate based on bisphenol A is most preferably used as component A.
- Component B consists of Bl and optionally B2 and / or B3. If component B consists of Bl and B2, the proportion of Bl in component B is preferably at least 20% by weight, particularly preferably at least 40% by weight. If component B consists of Bl and B3, then the proportion of Bl in component B is preferably at least 40% by weight, particularly preferably at least 45% by weight. Both component B1 and component B2 and B3 contain no epoxide groups.
- the component Bl is rubber-containing graft polymers prepared in the emulsion polymerization process of,
- Bl.l 5 to 95 wt .-%, preferably 10 to 70 wt .-%, particularly preferably 20 to 60 wt .-%, based on the component Bl, a mixture of Bl.1.1) 65 to 85 wt.
- % preferably 70 to 80 wt .-%, based on Bl.l, of at least one monomer selected from the group of vinyl aromatics (such as styrene, OC-methylstyrene), ring-substituted vinyl aromatic (such as p-methyl styrene, p-chlorostyrene ) and methacrylic acid (C 1 -C 8) alkyl esters (such as methyl methacrylate, ethyl methacrylate) and
- B.1.2 from 15 to 35% by weight, preferably from 20 to 30% by weight, based on B l. l, at least one monomer selected from the group of vinyl cyanides (such as unsaturated nitriles such as acrylonitrile and methacrylonitrile), (meth) acrylic acid (C 1 -C 8) -alkyl esters (such as 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-phenyl-maleimide) on
- the graft base preferably has a glass transition temperature ⁇ 0 ° C, more preferably ⁇ -20 ° C, particularly preferably ⁇ -40 ° C.
- the glass transition temperature is determined for all components by means of differential scanning calorimetry (DSC) according to DIN EN 61006 (version of 1994) at a heating rate of 10 K / min with determination of the Tg as center temperature (tangent method) ,
- the graft particles in component B preferably have an average particle size (D50 value) of from 0.05 to 5 ⁇ m, preferably from 0.1 to 1.0 ⁇ m, particularly preferably from 0.2 to 0.5 ⁇ m.
- D50 is the diameter, above and below which are each 50% by weight of the particles. Unless explicitly stated otherwise in the present application, it is determined by ultracentrifuge measurement (W. Scholtan, H. Lange, Kolloid, Z. and Z. Polymere 250 (1972), 782-1796).
- Preferred monomers B 1.1.1 are selected from at least one of the monomers styrene, 0C-methylstyrene and methyl methacrylate
- preferred monomers B l.1.2 are selected from at least one of the monomers acrylonitrile, maleic anhydride and methyl methacrylate.
- Particularly preferred monomers are B 1.1.1 styrene and Bl .1.2 methyl methacrylate.
- B l suitable elastomeric graft acrylate grafts B 1.2 are preferably polymers of alkyl acrylates, optionally with up to 40 wt .-%, based on B 1.2 other polymerizable, ethylenically unsaturated monomers.
- the preferred polymerizable acrylic esters include C 1 to C 5 alkyl esters, for example methyl, ethyl, Butyl, n-octyl and 2-ethylhexyl esters; Haloalkyl esters, preferably halo-Ci-Cs-aikylester, such as chloroethyl acrylate and mixtures of these monomers.
- crosslinking monomers having more than one polymerizable double bond can be copolymerized.
- Preferred examples of crosslinking monomers are esters of unsaturated monocarboxylic acids having 3 to 8 C atoms and unsaturated monohydric alcohols having 3 to 12 C atoms, or saturated polyols having 2 to 4 OH groups and 2 to 20 C atoms, such as ethylene glycol dimethacrylate, allyl methacrylate ; polyunsaturated heterocyclic compounds such as trivinyl and triallyl cyanurate; polyfunctional vinyl compounds such as di- and trivinylbenzenes; but also triallyl phosphate and diallyl phthalate.
- Preferred crosslinking monomers are allyl methacrylate, ethylene glycol dimethacrylate, diallyl phthalate and heterocyclic compounds having at least three ethylenically unsaturated groups.
- Particularly preferred crosslinking monomers are the cyclic monomers triallyl cyanurate, triallyl isocyanurate, triacryloylhexahydro-s-triazine, triallylbenzenes.
- the amount of crosslinked monomers is preferably 0.02 to 5, in particular 0.05 to 2 wt .-%, based on the graft B1.2. In cyclic crosslinking monomers having at least three ethylenically unsaturated groups, it is advantageous to limit the amount to less than 1 wt .-% of the graft B 1.2.
- the gel fraction of the graft polymers is at least 40% by weight, preferably at least 60% by weight, particularly preferably at least 75% by weight (measured in acetone).
- the gel content of the graft polymers unless otherwise stated in the present invention, determined at 25 ° C as insoluble in acetone as a solvent insoluble fraction (M. Hoffmann, H. Krömer, R. Kuhn, polymer analysis I and II, Georg Thieme Verlag, Stuttgart 1977).
- the graft polymers B 1 are generally prepared by free-radical polymerization.
- Particularly preferred polymers Bl are e.g. such polymers prepared in emulsion polymerization, as z. In Ullmann, Enzyklopadie der Technischen Chemie, Vol. 19 (1980), p. 280 et seq.
- the graft polymers are precipitated from the aqueous phase, followed by optional washing with water.
- the last work-up step is drying.
- the graft polymers Bl include optional additives contained in the production and / or process aids, such as emulsifiers, precipitants, stabilizers and reaction initiators, which are not completely removed in the work-up described above. These may be Brönsted-basic or Brönsted-sour nature.
- the graft polymer Bl comprises production-related generally also free, i. non-chemically bonded to the rubber base copolymer of B 1.1.1 and Bl.1.2, which is characterized in that it can be dissolved in suitable solvents (such as acetone).
- Component Bl preferably contains a free copolymer of B 1.1.1 and Bl.1.2 which has a weight-average molecular weight (Mw), determined by gel permeation chromatography using polystyrene as standard, of preferably 30,000 to 150,000 g / mol, particularly preferably 40,000 to 120,000 g / mol.
- Mw weight-average molecular weight
- compositions of the invention may optionally contain graft polymers prepared by the bulk, solution or suspension polymerization process.
- these are graft polymers of
- B2.1.1 65 to 85 wt .-%, preferably 70 to 80 wt .-%, based on the mixture B.2.1, at least one monomer selected from the group of vinyl aromatics (such as styrene, 0C methyl styrene), ring-substituted vinyl aromatic (such as p-methylstyrene, p-chlorostyrene) and methacrylic acid (C 1 -C 8) alkyl esters (such as methyl methacrylate, ethyl methacrylate) and
- vinyl aromatics such as styrene, 0C methyl styrene
- ring-substituted vinyl aromatic such as p-methylstyrene, p-chlorostyrene
- methacrylic acid C 1 -C 8 alkyl esters (such as methyl methacrylate, ethyl methacrylate) and
- B2.1.2 15 to 35 wt .-%, preferably 20 to 30 wt .-% based on the mixture B2.1, at least one monomer selected from the group of vinyl cyanides (such as unsaturated nitriles such as acrylonitrile and methacrylonitrile), (Meth Acrylic acid (C 1 -C 8) -alkyl esters (such as, for example, methyl methacrylate, n-butyl acrylate, tert-butyl acrylate) and derivatives (such as, for example, anhydrides and imides) of unsaturated carboxylic acids (for example maleic anhydride and N-phenylmaleimide) on B2.2) 95 to 5 wt .-%, preferably 20 to 7 wt .-%, particularly preferably 15 to 8 wt .-%, most preferably 13 to 7 wt .-%, based on the component B2, at least one graft.
- the graft base preferably has
- the graft particles in component B2 preferably have an average particle size (D50 value) of from 0.1 to 10 ⁇ m, preferably from 0.2 to 2 ⁇ m, particularly preferably from 0.3 to 1.0 ⁇ m, very particularly preferably from 0 , 3 to 0.6 ⁇ on.
- D50 value average particle size
- Preferred monomers B2.1.1 are selected from at least one of the monomers styrene, 0C-methylstyrene and methyl methacrylate
- preferred monomers B2.1.2 are selected from at least one of the monomers acrylonitrile, maleic anhydride and methyl methacrylate.
- Suitable monomers are B2.1.1 styrene and B2.1.2 acrylonitrile.
- Suitable graft bases B2.2 for the graft polymers B2 are, for example, diene rubbers, diene-vinyl block copolymer rubbers, EP (D) M rubbers, ie those based on ethylene / propylene and optionally diene, acrylate, polyurethane, silicone, Chloroprene and ethylene / vinyl acetate rubbers and mixtures of such rubbers or silicone-acrylate composite rubbers in which the silicone and acrylate components are chemically linked to one another (eg by grafting).
- Preferred graft bases B2.2 are diene rubbers (for example based on butadiene or isoprene), diene-vinyl block copolymer rubbers (for example based on butadiene and styrene blocks), copolymers of diene rubbers with further copolymerizable monomers (for example according to B2.1.1 and B2 .1.2) and mixtures of the aforementioned rubber types.
- Particularly preferred as the graft base B2.2 are styrene-butadiene block copolymer rubbers and mixtures of styrene-butadiene block copolymer rubbers with pure polybutadiene rubber.
- the gel content of the graft polymers B2 is preferably 10 to 35 wt .-%, more preferably 15 to 30 wt .-%, most preferably 17 to 23 wt .-% (measured in acetone).
- Particularly preferred polymers B2 are e.g. ABS polymers prepared by free radical polymerization, which in a preferred embodiment up to 10 wt .-%, particularly preferably up to 5 wt .-%, most preferably 2 to 5 wt .-%, each based on the graft polymer B2, to n Butyl acrylate.
- the graft polymer B2 generally comprises free, i. non-chemically bonded to the rubber base copolymer of B2.1.1 and B2.1.2, which is characterized in that it can be dissolved in suitable solvent (for example, acetone).
- suitable solvent for example, acetone
- Component B2 preferably contains free copolymer of B2.1.1 and B2.1.2, which has a weight-average molecular weight (Mw), determined by gel permeation chromatography Polystyrene as a standard, preferably from 50,000 to 200,000 g / mol, more preferably from 70,000 to 150,000 g / mol, particularly preferably from 80,000 to 120,000 g / mol.
- Mw weight-average molecular weight
- the composition may contain, as further component B3, optionally (co) polymers of at least one monomer from the group of vinylaromatics, vinyl cyanides (unsaturated nitriles), (meth) acrylic acid (C1 to C8) alkyl esters, unsaturated carboxylic acids and derivatives (such as anhydrides and Imide) unsaturated carboxylic acids.
- component B3 are (co) polymers of
- vinyl aromatics such as styrene , OC-methylstyrene
- ring-substituted vinylaromatics such as p-methylstyrene, p-chlorostyrene
- acrylic acid (C 1 -C 8) -alkyl esters such as
- These (co) polymers B3 are resinous, thermoplastic and rubber-free. Particularly preferred is the copolymer of B3.1 styrene and B3.2 acrylonitrile.
- Such (co) polymers B3 are known and can be prepared by free-radical polymerization, in particular by emulsion, suspension, solution or bulk polymerization.
- the (co) polymers B3 have a weight-average molecular weight (Mw), determined by gel permeation chromatography using polystyrene as standard, of preferably 50,000 to 250,000 g / mol, more preferably 70,000 to 200,000 g / mol, particularly preferably 80,000 to 170,000 g / mol ,
- Mw weight-average molecular weight
- component B contains from 20 to 80% by weight, preferably from 30 to 70% by weight, of component B1, in each case based on component B. More preferably, component B contains from 20 to 80% by weight. % of component Bl and 20 to 80 wt .-% B2, preferably 30 to 50 wt .-% of component Bl and 50 to 70 wt .-% of component B2, each based on the component B.
- the preferred molding compositions according to the invention are distinguished by an optimized property combination of mechanical properties, good flow behavior, flame retardancy, in particular with thinner wall thicknesses and thermal stability.
- component B contains 40 to 98 wt .-% of component Bl and 2 to 60 wt .-% of component B3, preferably 45 to 95 wt .-% of component Bl and 5 to 55 % By weight of component B3, in each case based on component B.
- the preferred molding compositions according to the invention are distinguished by an optimized property combination of mechanical properties, flame resistance and thermal stability under defined storage conditions (temperature and air humidity).
- the composition contains as component C at least one polymer containing structural units derived from styrene and structural units derived from a vinyl monomer containing epoxide groups.
- Rl, R2 and R3 are independently hydrogen or methyl. At least two of the radicals R 1, R 2 and R 3 are preferably hydrogen, and more preferably all radicals R 1, R 2 and R 3 are hydrogen.
- Such vinyl monomers containing epoxide groups to be used for the preparation of component C are, for example, glycidyl acrylate, glycidyl methacrylate, glycidyl methacrylate, glycidyl itaconate, allyl glycidyl ether, vinyl glycidyl ether, vinyl benzyl glycidyl ether or propenyl glycidyl ether. Particularly preferred is glycidyl methacrylate.
- component C comprises a polymer prepared by copolymerization of styrene and at least one vinyl monomer copolymerizable with styrene copolymerizable epoxide groups.
- component C in the preparation of these polymers according to component C, in addition to styrene and the vinyl monomer containing epoxide groups, at least one further epoxy monomer-free vinyl monomer copolymerizable with these monomers is used.
- vinyl monomers are selected from the group consisting of vinylaromatics (such as OC-methylstyrene), ring-substituted vinylaromatics (such as p-methylstyrene, p-chlorostyrene), (meth) acrylic acid (C 1 -C 8) -alkyl esters (such as methyl methacrylate, n-butyl acrylate, tert-butyl acrylate), vinyl cyanides (such as acrylonitrile and methacrylonitrile), unsaturated carboxylic acids (eg, maleic acid and N-phenyl-maleic acid), and derivatives of unsaturated carboxylic acids (eg, maleic anhydride and N-phenyl-maleimide). Particularly preferred is acrylonitrile used as another copolymerizable vinyl monomer.
- vinylaromatics such as OC-methylstyrene
- ring-substituted vinylaromatics such as p-methyl
- the component C comprises at least one polymer containing structural units derived from styrene, acrylonitrile and glycidyl methacrylate, in a particularly preferred embodiment a polymer consisting of structural units derived from styrene, acrylonitrile and glycidyl methacrylate.
- the weight ratio between the styrene-derived structural units and that of the other vinyl monomer derived structural units in the range of 99: 1 to 50:50, preferably in the range of 85: 15 to 60:40.
- the component C comprises structural units derived from styrene, acrylonitrile and glycidyl methacrylate, wherein the weight ratio of the styrene-derived structural units to acrylonitrile-derived structural units is in particular 99: 1 to 50:50, preferably 85: 15 to 60:40.
- component C comprises a polymer prepared by copolymerization of styrene, acrylonitrile and glycidyl methacrylate, wherein the weight ratio of styrene to acrylonitrile is 99: 1 to 50:50, preferably 85: 15 to 60:40.
- the preparation of the polymers of component C from styrene and at least one copolymerizable with styrene vinyl monomers containing epoxide groups is preferably carried out by free-radically initiated polymerization, for example by the known solution polymerization in organic hydrocarbons. Such conditions are preferably to be adhered to that hydrolysis of the epoxide groups is at least largely avoided. Suitable and preferred conditions for example, low levels of polar solvents such as water, alcohol, acids or bases and work in solvents from the group of organic hydrocarbons which are inert to epoxide groups, such as toluene, ethylbenzene, xylene, high-boiling aliphatic, ester or ether.
- polar solvents such as water, alcohol, acids or bases
- An alternative preparation method is the likewise known thermally or free-radically initiated, preferably continuous bulk polymerization at temperatures of preferably 40 to 150 ° C, particularly preferably 80 to 130 ° C and optionally with only partial monomer conversion, so that the polymer obtained is obtained as a solution in the monomer system.
- component C it is also possible to use a block or graft polymer which contains structural units derived from styrene and at least one vinyl monomer containing epoxide groups.
- block or graft polymers are prepared, for example, by free-radically initiated polymerization of styrene and optionally further copolymerizable vinyl monomers in the presence of a polymer selected from the group consisting of polycarbonate, polyester, polyestercarbonate, polyolefin, polyacrylate and polymethacrylate.
- block or graft polymers of this type are prepared by free-radically initiated polymerization of styrene, a vinyl monomer containing epoxide groups and optionally further copolymerizable epoxide-free vinyl monomers in the presence of a polymer selected from the group consisting of polycarbonate, polyester, polyestercarbonate, polyolefin, polyacrylate and polymethacrylate. These polymers may also contain epoxide groups, which in the case of the polyolefins, polyacrylates and polymethacrylates are preferably obtained by copolymerization with epoxide-group-containing vinyl monomers.
- vinyl monomers containing epoxide groups and as further copolymerizable epoxy-free vinyl monomers are used in such block or graft polymers.
- a block or graft polymer is prepared by free-radically initiated polymerization of styrene, glycidyl methacrylate and acrylonitrile in the presence of a polycarbonate using styrene and acrylonitrile in a weight ratio of 85:15 to 60:40.
- Such block or graft polymers are obtained, for example, by the above-mentioned polymer selected from the group consisting of polycarbonate, polyester, polyester carbonate, polyolefin, polyacrylate and polymethacrylate in the monomer mixture of styrene and optionally copolymerizable with styrene vinyl monomers, including optionally and preferably also epoxy groups is swollen or dissolved containing vinyl monomer, for which purpose optionally a preferably non-aqueous Coendingstoff can be used, and is reacted with an organic peroxide as an initiator for a radical polymerization by increasing the temperature and subsequent melt compounding.
- the above-mentioned polymer selected from the group consisting of polycarbonate, polyester, polyester carbonate, polyolefin, polyacrylate and polymethacrylate in the monomer mixture of styrene and optionally copolymerizable with styrene vinyl monomers, including optionally and preferably also epoxy groups is swollen or
- component C may be a block or graft polymer prepared by reacting a polymer containing structural units derived from styrene and from an epoxide group-containing vinyl monomer with an OH group-containing polymer selected from the group consisting of polycarbonate, polyester and polyestercarbonate ,
- block or graft polymers In the preparation of the block or graft polymers, it is possible that not all polymer chains selected from the group consisting of polycarbonate, polyester, polyester carbonate, polyolefin, polyacrylate and polymethacrylate with styrene and the optionally further vinyl monomers form block or graft polymers.
- component C is also understood as meaning those polymer mixtures which are obtained by the described preparation methods and in which homopolymers are also selected from polycarbonate, polyester, polyestercarbonate, polyolefin, polyacrylate and polymethacrylate and the vinyl monomers copolymerizable with styrene and optionally further with styrene obtained styrene (co) polymers present.
- Component C may also be a mixture of several of the components described above.
- Component C has a weight ratio of styrene to epoxide group-containing vinyl monomer-derived structural elements of from 100: 1 to 1: 1, preferably from 10: 1 to 1: 1, more preferably from 5: 1 to 1: 1, most preferably from 3: 1 to 1: 1.
- Component C has an epoxide content measured in accordance with ASTM D 1652-11 (version 2011) in dichloromethane of 0.1 to 5 wt.%, Preferably 0.3 to 3 wt.%, Particularly preferably 1 to 3 wt. on.
- graft or block polymers which may be used as component C include Modiper TM CL430-G, Modiper TM A 4100 and Modiper TM A 4400 (each NOF Corporation, Japan). Preference is given to using Modiper TM CL430-G.
- Phosphorus-containing flame retardants D in the sense of the invention are selected from the groups of mono- and oligomeric phosphoric and phosphonic acid esters, phosphonateamines and phosphazenes, wherein mixtures of several components selected from one or more of these groups can be used as flame retardants.
- R 1 , R 2 , R 3 and R 4 independently of one another each optionally halogenated Ci to Cs alkyl, each optionally substituted by alkyl Cs to Cö-cycloalkyl, C ⁇ to C20 or C 7 to C 2 aralkyl radical , n independently 0 or 1, q an integer value from 1 to 30, as well
- X is a polynuclear aromatic radical having 12 to 30 carbon atoms, which is optionally substituted by halogen and / or alkyl groups.
- R 1 , R 2 , R 3 and R 4 independently of one another are C 1 - to C 4 -alkyl, phenyl, naphthyl or phenyl-C 1 -C 4 -alkyl.
- the aromatic groups R 1 , R 2 , R 3 and R 4 may in turn be substituted by halogen and / or alkyl groups, preferably chlorine, bromine and / or C 1 to C 4 alkyl.
- Particularly preferred aryl radicals are cresyl, phenyl, xylenyl, propylphenyl or butylphenyl and the corresponding brominated and chlorinated derivatives thereof.
- X in the formula (II) is preferably a polynuclear aromatic radical having 12 to 30 carbon atoms. This is preferably derived from diphenols. may be independently 0 or 1 in formula (II), preferably n is equal to 1.
- q stands for integer values of 0 to 30, preferably 0 to 20, particularly preferably 0 to 10, in the case of mixtures for average values of 0.8 to 5.0, preferably 1.0 to 3.0, more preferably 1.05 to 2.00, and more preferably from 1.08 to 1.60.
- X is derived from bisphenol A or diphenylphenol.
- X is particularly preferably derived from bisphenol A.
- Phosphorus compounds of the formula (II) are, in particular, tributyl phosphate, triphenyl phosphate, tricresyl phosphate, diphenyl cresyl phosphate, diphenyl octyl phosphate, diphenyl 2-ethyl cresyl phosphate, tri (isopropylphenyl) phosphate, and bisphenol A bridged oligophosphate.
- oligomeric phosphoric esters of the formula (II) derived from bisphenol A is particularly preferred.
- component D is bisphenol A-based oligophosphate according to formula (V):
- the phosphorus compounds according to component D are known (cf., for example, EP-A 0 363 608, EP-A 0 640 655) or can be prepared by known methods in an analogous manner (eg Ullmanns Enzyklopadie der ischen Chemie, Vol ff. 1979; Houben-Weyl, Methods of Organic Chemistry, Vol. 12/1, p. 43; Beilstein, Vol. 6, p. 177).
- component D according to the invention it is also possible to use mixtures of phosphates having a different chemical structure and / or having the same chemical structure and different molecular weight. Preference is given to using mixtures having the same structure and different chain length, the stated q value being the mean q value.
- the mean q value is determined by determining the composition of the phosphorus compound (molecular weight distribution) by means of high pressure liquid chromatography (HPLC) at 40 ° C. in a mixture of acetonitrile and water (50:50) and from this the mean values for q are calculated ,
- phosphonatamines and phosphazenes as described in WO 00/00541 and WO 01/18105, can be used as flame retardants.
- the flame retardants can be used alone or in any mixture with each other or in mixture with other flame retardants.
- the composition may contain as component E one or more further additives, preferably selected from the group consisting of anti-dripping agents, flame retardant synergists, lubricants and mold release agents (for example pentaerythritol tetrastearate), nucleating agents, antistatic agents, conductivity additives, stabilizers (eg hydrolysis, heat aging and UV stabilizers). Stabilizers and transesterification inhibitors and acid / base quenchers), flowability promoters, compatibilizers, other impact modifiers (both with and without core-shell structure), other polymeric constituents (for example functional blend partners), fillers and reinforcing agents, as well as dyes and Pigments (for example titanium dioxide or iron oxide).
- additives preferably selected from the group consisting of anti-dripping agents, flame retardant synergists, lubricants and mold release agents (for example pentaerythritol tetrastearate), nucleating agents, antistatic agents, conductivity additives, stabilizers (
- Component E may contain different impact modifiers from component B.
- Impact impact modifiers are preferably prepared by mass, solution or suspension polymerization, more preferably of the ABS type.
- impact modifiers prepared by mass, solution, or suspension polymerization, are containing, their proportion is at most 20 wt .-%, preferably at most 10 wt .-%, each based on the sum of the impact modifiers prepared by mass, solution , or suspension polymerization and component B.
- compositions are free of such impact modifiers made by bulk, solution, or suspension polymerization. More preferably, they do not contain impact modifiers other than component B.
- the composition contains at least one polymer additive selected from the group consisting of anti-drip agents and smoke inhibitors.
- PTFE polytetrafluoroethylene
- PTFE-containing compositions such as masterbatches of PTFE with polymers or copolymers containing styrene or methylmethacrylate, as a powder or as a coagulated mixture, e.g. with component B, used.
- the fluorinated polyolefins used as Antidrippingstoff are high molecular weight and have glass transition temperatures of above -30 ° C, usually of about 100 ° C, fluorine contents, preferably from 65 to 76, in particular from 70 to 76 wt .-%, average particle diameter d5Q of 0 , 05 to 1000, preferably 0.08 to 20 ⁇ .
- the fluorinated polyolefins have a density of
- fluorinated polyolefins are polytetrafluoroethylene, polyvinylidene fluoride, tetrafluoroethylene / hexafluoropropylene and ethylene / tetrafluoroethylene copolymers.
- Suitable fluorinated polyolefins D which can be used in powder form are tetrafluoroethylene polymers having a mean particle diameter of from 100 to 1000 ⁇ m and densities of 2.0 giere. to 2.3 g / cir Suitable tetrafluoroethylene polymer powders are commercially available products and are available, for example, from DuPont under the trade name Teflon®.
- the composition contains at least one polymer additive selected from the group consisting of lubricants and mold release agents, stabilizers, flowability promoters, compatibilizers, dyes and pigments.
- the composition contains at least one polymer additive selected from the group consisting of lubricants / mold release agents and stabilizers.
- the composition contains pentaerythritol tetrastearate as a mold release agent.
- the composition contains as stabilizer at least one member selected from the group consisting of sterically hindered phenols, organic phosphites, sulfur-based co-stabilizers and organic and inorganic Bronsted acids.
- the composition contains as stabilizer at least one member selected from the group consisting of octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate and tris (2,4-di-tert-butylphenyl) phosphite.
- the composition contains as stabilizer a combination of octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate and tris (2,4-di-tert-butylphenyl) phosphite.
- Further preferred compositions contain pentaerythritol tetrastearate as the mold release agent, and as stabilizer a combination of octadecyl 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate and tris (2,4-di-tert-butylphenyl) phosphite.
- the composition may contain as component E) one or more fillers.
- component E one or more fillers.
- Fillers or mixtures of these preferably talc, kaolin, wollastonite,
- Glass fiber more preferably talc, glass fiber or mixtures of these.
- Thermoplastic molding compositions can be prepared from the compositions according to the invention.
- thermoplastic molding compositions according to the invention can be prepared, for example, by mixing the respective constituents of the compositions at temperatures of 200 ° C to 320 ° C, preferably at 240 to 320 ° C, particularly preferably at 260 to 300 ° C with each other.
- the invention also provides a corresponding process for the preparation of the molding compositions of the invention.
- the mixing can be done in conventional units, such as in internal kneaders, extruders and twin-screw. Therein the compositions are melt compounded or melt extruded into molding compositions.
- This process is referred to in this application generally as compounding.
- molding compound is meant the product which is obtained when the components of the composition are melt compounded and melt extruded.
- the mixing of the individual constituents of the compositions can be carried out in a known manner both successively and simultaneously, both at about 20 ° C. (room temperature) and at a higher temperature. This means that, for example, some of the components can be metered via the main intake of an extruder and the remaining components can be fed later via a side extruder in the compounding process.
- the molding compositions of the invention can be used for the production of moldings of any kind. These can be produced for example by injection molding, extrusion and blow molding. Another form of processing is the production of moldings by deep drawing from previously prepared plates or films.
- the novel molding compositions are particularly suitable for processing in extrusion, blow molding and deep-drawing processes.
- Another object of the present invention thus relates to the use of a composition according to the invention or a molding composition according to the invention for the production of moldings, as well as also a molding which is obtainable from a composition of the invention from a molding composition according to the invention.
- Such shaped articles which can be produced from the compositions and molding compositions according to the invention are films, profiles, housing parts of any kind, e.g. for household appliances such as juice presses, coffee machines, blenders; for office machines such as monitors, flat screens, notebooks, printers, copiers; Panels, pipes, electrical installation ducts, windows, doors and other profiles for the building sector (interior and exterior applications) and electrical and electronic parts such as switches, plugs and sockets and components for commercial vehicles, in particular for the automotive sector.
- household appliances such as juice presses, coffee machines, blenders
- office machines such as monitors, flat screens, notebooks, printers, copiers
- Panels, pipes, electrical installation ducts, windows, doors and other profiles for the building sector (interior and exterior applications) and electrical and electronic parts such as switches, plugs and sockets and components for commercial vehicles, in particular for the automotive sector.
- compositions and molding compositions according to the invention are also suitable for the production of the following moldings or moldings: interior components for rail vehicles, ships, aircraft, buses and other motor vehicles, body parts for motor vehicles, electrical appliances containing small transformers, housings for information processing and transmission equipment, housings and paneling of medical equipment, massage apparatus and housings therefor, toy vehicles for children, panel wall elements, enclosures for safety devices, heat-insulated transport containers, fittings for plumbing and bathing equipment, grilles for ventilation openings and housings for garden tools.
- the invention particularly relates to the following embodiments: According to a first embodiment, the invention relates to a composition for producing a thermoplastic molding composition, wherein the composition contains or consists of at least the following constituents:
- the invention relates to a composition according to embodiment 1, characterized in that the component C structural units derived from at least one further copolymerizable with styrene copolymerizable epoxy group-free vinyl monomers.
- the invention relates to a composition according to embodiment 1 or 2, characterized in that the weight ratio of structural units derived from styrene to styrene-copolymerizable epoxy group-free vinyl monomers in component C is in the range of 85:15 to 60:40 ,
- the invention relates to a composition according to one of the preceding embodiments, characterized in that component C contains structural units derived from acrylonitrile.
- the invention relates to a composition according to one of the preceding embodiments, characterized in that the epoxide-containing vinyl monomer used to produce the component C glycidyl acrylate, glycidyl methacrylate, glycidyl methacrylate, glycidyl itaconate, allyl glycidyl ether, vinyl glycidyl ether, vinyl benzyl glycidyl ether and / or propenyl glycidyl ether, in particular glycidyl methacrylate is.
- the invention relates to a composition according to one of the preceding embodiments, characterized in that the component C has an epoxide content measured according to ASTM D 1652-11 in dichloromethane of 0.1 to 5 wt .-%.
- the invention relates to a composition according to one of the preceding embodiments, characterized in that the emulsion graft polymer Bl) is prepared in the emulsion polymerization process
- Bl.l.1 65 to 85 wt .-%, based on Bl.l, of at least one monomer selected from the group of vinyl aromatics, ring-substituted vinyl aromatics and methacrylic acid (C1-C8) alkyl esters and
- Bl.l.2 15 to 35 wt .-%, based on Bl.l, of at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (C 1 -C 8) alkyl esters and derivatives of unsaturated carboxylic acids
- the invention relates to a composition according to one of the preceding embodiments, characterized in that the rubber-modified graft polymer B2) is prepared by the bulk, solution or suspension polymerization process, preferably in the bulk polymerization process
- B2.1.1) from 65 to 85% by weight, based on the mixture B2.1, of at least one monomer selected from the group of the vinylaromatics, ring-substituted vinylaromatics and methacrylic acid (C1-C8) -alkyl esters and
- B2.1.2 15 to 35 wt .-%, based on the mixture B2.1, of at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (C 1 -C 8) alkyl esters and derivatives of unsaturated carboxylic acids
- the invention relates to a composition according to one of the preceding embodiments, characterized in that the rubber-free vinyl (co) polymer B3) is prepared from
- B3.1 from 50 to 99% by weight, based on the (co) polymer B3, of at least one monomer selected from the group of vinylaromatics, ring-substituted vinylaromatics and (meth) acrylic acid (C 1 -C 8) -alkyl esters and
- B3.2 from 1 to 50% by weight, based on the (co) polymer B3, of at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (C 1 -C 8) -alkyl esters, unsaturated carboxylic acids and derivatives of unsaturated carboxylic acids.
- the invention relates to a composition according to one of the preceding embodiments, characterized in that component D comprises at least one phosphorus-containing flame retardant of the general formula (IV)
- R 1 , R 2 , R 3 and R 4 independently of one another are each optionally halogenated C 1 - to C 6 -alkyl-, in each case optionally substituted by alkyl C 1 to C 6 -cycloalkyl, C 1 to C 2 o-aryl or C 7 to C 12 - Aralkyl radical, now depending on each other 0 or 1, q is an integer value of 1 to 30, and
- X is a polynuclear aromatic radical having 12 to 30 carbon atoms, which is optionally substituted by halogen and / or alkyl groups.
- the invention relates to a composition according to embodiment 10, characterized in that component D is a compound according to the following formula (V)
- the invention relates to a composition according to one of the preceding embodiments, characterized in that component A has phenolic OH groups and the stoichiometric ratio of the epoxide groups of component C) to the phenolic OH groups, component A at least 1: 1 is, in particular at least 1.1: 1, preferably at least 1.2: 1.
- the invention relates to a composition according to embodiment 12, characterized in that component A has a weight fraction of phenolic OH groups of 50 to 2000 ppm, preferably 80 to 1000 ppm, particularly preferably 100 to 700 ppm.
- the invention relates to a composition according to one of the preceding embodiments, characterized in that component B contains from 20 to 80% by weight, preferably from 30 to 70% by weight, of component B1, in each case based on component B.
- the invention relates to a composition according to one of the preceding embodiments, characterized in that component B contains from 20 to 80% by weight of component B1 and from 20 to 80% by weight B2, preferably from 30 to 50% by weight. % of component Bl and 50 to 70 wt .-% of component B2, each based on the component B.
- the invention relates to a composition according to one of embodiments 1 to 13, characterized in that component B 40 to 98 wt .-% of component Bl and 2 to 60 wt .-% of component B3, preferably 45 to 95 Wt .-% of component Bl and 5 to 55 wt .-% of component B3, each based on the component B.
- the invention relates to a composition according to one of embodiments 1 to 15, characterized in that the composition contains or consists of the following constituents: A) 51.0 to 85.0% by weight, in particular 52.0 to 75.0% by weight, most preferred 55.0 to 72.0% by weight of aromatic polycarbonate and / or aromatic polyester carbonate,
- B l .l 10 to 70 wt .-%, preferably 20 to 60 wt .-%, based on the
- Component B l a mixture of Bl .1.1) 70 to 80 wt .-%, based on B l. l, at least one monomer selected from the group consisting of vinylaromatics, ring-substituted vinylaromatics and methacrylic acid (C 1 -C 8) -alkyl esters and
- Bl. l.2) from 20 to 30% by weight, based on B l. l, at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (C 1 -C 8) -alkyl esters and derivatives of unsaturated carboxylic acids
- B 1.2 90 to 30 wt .-%, based on the component B l, at least one elastomeric acrylate graft base, selected from polymers of alkyl acrylates, optionally with up to 40 wt .-%, based on B 1.2 other polymerizable, ethylenically unsaturated Monomers, wherein the
- Acrylic esters are preferably selected from C 1 to C 6 -alkyl esters, especially methyl, ethyl, butyl, n-octyl and 2-ethylhexyl esters, haloalkyl esters, in particular halo-C 1 -C 8 -alkyl esters, and mixtures of these, and also 20 to 80 Wt .-%, in particular 50 to 70 wt .-% of the bulk, solution or
- Suspension graft polymer B2 prepared in the bulk, solution or suspension polymerization process
- Component B2 a mixture of
- B2.1.1) from 70 to 80% by weight, based on the mixture B2.1, of at least one monomer selected from the group of the vinylaromatics, ring-substituted vinylaromatics and methacrylic acid (C1-C8) -alkyl esters and B2.1.2) 20 to 30 wt .-%, based on the mixture B2.1, of at least one monomer selected from the group of vinyl cyanides, (Mefh) acrylic acid (C 1 -C 8) alkyl esters and derivatives of unsaturated carboxylic acids
- the invention relates to a composition according to one of the embodiments 1 to 13 or 16, characterized in that the composition contains or consists of the following constituents:
- Bl.l 10 to 70 wt .-%, preferably 20 to 60 wt .-%, based on the
- Bl.1.1 70 to 80 wt .-%, based on Bl.l, of at least one monomer selected from the group of vinyl aromatics, ring-substituted vinyl aromatics and methacrylic acid (C1-C8) alkyl esters and
- Vinyl (co) polymer B3 prepared from
- (Co) polymer B3 at least one monomer selected from the group consisting of vinylaromatics, ring-substituted vinylaromatics and (meth) acrylic acid (C 1 -C 8) -alkyl esters and
- (Co) polymer B3 at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (C 1 -C 8) -alkyl esters, unsaturated carboxylic acids and derivatives of unsaturated carboxylic acids,
- the invention relates to a composition according to one of the embodiments 1 to 13 or 16, characterized in that the composition contains or consists of the following constituents:
- B l .l 10 to 70 wt .-%, preferably 20 to 60 wt .-%, based on the
- Component B l a mixture of Bl .1.1) 70 to 80 wt .-%, based on B l. l, at least one monomer selected from the group consisting of vinylaromatics, ring-substituted vinylaromatics and methacrylic acid (C 1 -C 8) -alkyl esters and
- Bl. l.2) from 20 to 30% by weight, based on B l. l, at least one monomer selected from the group of vinyl cyanides, (Mefh) acrylic acid (C 1 -C 8) - alkyl esters and derivatives of unsaturated carboxylic acids
- B 1.2 90 to 30 wt .-%, based on the component B l, at least one elastomeric acrylate graft base, selected from polymers of alkyl acrylates, optionally with up to 40 wt .-%, based on B 1.2 other polymerizable, ethylenically unsaturated Monomers, wherein the
- Acrylic esters are preferably selected from C 1 to C 6 -alkyl esters, in particular methyl, ethyl, butyl, n-octyl and 2-ethylhexyl esters, haloalkyl esters, in particular halo-C 1 -C 8 -alkyl esters, and mixtures of these, and 2 to 60 Wt .-%, in particular 5 to 55 wt .-% of the rubber-free
- Vinyl (co) polymer B3 prepared from
- (Co) polymer B3 at least one monomer selected from the group consisting of vinylaromatics, ring-substituted vinylaromatics and (meth) acrylic acid (C 1 -C 8) -alkyl esters and
- (Co) polymer B3 at least one monomer selected from the group of vinyl cyanides, (meth) acrylic acid (C 1 -C 8) -alkyl esters, unsaturated carboxylic acids and derivatives of unsaturated carboxylic acids, C) 3.0 to 6.0 wt .-% of Epoxy-vinyl polymer containing or consisting of structural units derived from styrene and from an epoxide group-containing vinyl monomer,
- the invention relates to a process for the preparation of a molding composition, characterized in that the constituents of a composition according to one of embodiments 1 to 19 are mixed together at a temperature of 200 to 320 ° C, in particular at 240 to 320 ° C, preferably at 260 to 300 ° C.
- the invention relates to a molding compound which is obtained or obtainable by a method according to embodiment 20.
- the invention relates to the use of a composition according to one of embodiments 1 to 19 or a molding compound according to embodiment 21 for the production of moldings.
- the invention relates to a molded article obtainable from a composition according to one of embodiments 1 to 19 or from a molding composition according to embodiment 21.
- Linear polycarbonate based on bisphenol A having a weight-average molecular weight Mw of 28500 g / mol (determined by GPC in methylene chloride with polycarbonate based on bisphenol A as standard) and a phenolic OH content by weight of 120 ppm.
- Linear polycarbonate based on bisphenol A having a weight-average molecular weight Mw of 26500 g / mol (determined by GPC in methylene chloride with polycarbonate based on bisphenol A as standard) and a weight fraction of phenolic OH groups of 140 ppm.
- Graft polymer of 40 parts by weight of methyl methacrylate per 60 parts by weight of particulate crosslinked poly-n-butyl acrylate rubber (average particle diameter d50 0.50 ⁇ m), prepared by emulsion polymerization.
- ABS-type n-butyl acrylate-modified graft polymer prepared by the mass polymerization method having an A: B: S ratio of 21: 10:65 wt% and having a n-butyl acrylate content of 4 wt%.
- the dso value of the graft particle diameter determined by ultracentrifugation is 0.5 ⁇ m.
- the graft base on which the grafted polymer is based is a styrene-butadiene block copolymer rubber (SBR).
- SBR styrene-butadiene block copolymer rubber
- the weight average molecular weight M w of the free, ie not chemically bound to the rubber or included in the rubber particles in acetone insoluble form for acetone by GPC with polystyrene as standard in dimethylformamide at 20 ° C is 110 kg / mol ,
- SAN copolymer having an acrylonitrile content of 23% by weight and a weight-average molecular weight of about 130,000 g / mol (determined by GPC in tetrahydrofuran with polystyrene as standard).
- Modiper TM CL430-G Polymer containing blocks of polycarbonate and blocks of glycidyl methacrylate-styrene-acrylonitrile terpolymer obtained by peroxide-initiated radical graft polymerization of 30% by weight of a monomer mixture of styrene, acrylonitrile and glycidyl methacrylate in the ratio 15: 6: 9 wt% in the presence of 70 % By weight of linear polycarbonate based on bisphenol A.
- the epoxide content of component C measured according to ASTM D 1652-11 in dichloromethane is 2.4% by weight.
- Cycolac INP449 Polytetrafluoroethylene (PTFE) preparation from Sabic consisting of 50% by weight PTFE contained in a SAN copolymer matrix.
- Pentaerythritol tetrastearate as a mold release agent
- Irganox B 900 (blend of 80% Irgafos TM 168 (tris (2,4-di-tert-butylphenyl) phosphite) and 20% Irganox TM 1076 (2,6-di-tert-butyl-4- (octadecanoxycarbonylethyl ) -phenol); BASF (Ludwigshafen, Germany)
- Pural 200 aluminum oxide hydroxide, average particle size about 50 nm, (manufacturer: Condea Hamburg)
- the components were mixed on a twin-screw extruder ZSK-25 from Werner & Pfleiderer at a melt temperature of 260.degree.
- the moldings were produced at a melt temperature of 260 ° C and a mold temperature of 80 ° C on an injection molding machine type Arburg 270 E.
- the MVR is determined according to ISO 1133 (version of 2012) at 240 ° C using a 5 kg punch load. This value is indicated in Table 1 as the "MVR value of the original sample".
- the change in the MVR during storage of the granules for 5 days at 95 ° C and 100% relative humidity is used.
- the impact resistance (weld line strength) is determined at 23 ° C. according to ISO 179 / leU (version from 2010) on test specimens measuring 80 mm ⁇ 10 mm ⁇ 4 mm.
- the melt viscosity is determined according to ISO 11443 (version of 2014) at a temperature of 260 ° C and a shear rate of 1000 s "1 .
- the elongation at break is determined according to ISO 527 (version of 1996) at room temperature.
- the flame resistance is assessed according to UL94V on bars measuring 127 x 12.7 x 1.5 mm.
- ESC stress cracking
- isopropanol 60/40 parts by volume
- the time is determined until the stress crack-induced fracture failure of a test specimen sprayed off at 260 ° C. melt temperature of 80 mm ⁇ 10 mm ⁇ 4 mm, which is subjected to an external marginal fiber strain of 2.4% by means of a clamping template and completely submerged in the medium.
- the measurement is based on ISO 22088 (version of 2006).
- the content of free bisphenol A monomer was determined by means of high-performance liquid chromatography (HPLC) with diode array (DAD) detector on granules produced by twin-screw extruder.
- HPLC high-performance liquid chromatography
- DAD diode array
- the granules were first dissolved in dichloromethane and then the polycarbonate was reprecipitated with acetone / methanol.
- the precipitated polycarbonate and all insoluble in the Umsocilungsstoff portions of the compositions were filtered off and the filtrates are then concentrated on a rotary evaporator to near dryness.
- the residues were analyzed by HPLC-DAD at room temperature (gradient: acetonitrile / water, stationary phase C-18).
- Table 1 Molding compounds and their properties
- a particularly favorable profile of properties is achieved when the proportion of component C is in the range from 3.0 to 6.0% by weight. The above properties are most improved and the increase in melt viscosity is still within acceptable limits.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17196679 | 2017-10-16 | ||
| PCT/EP2018/066718 WO2019076493A1 (de) | 2017-10-16 | 2018-06-22 | Flammwidrige polycarbonat-acrylat-kautschuk-zusammensetzung mit geringem bisphenol-a-gehalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3697845A1 true EP3697845A1 (de) | 2020-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18731477.8A Withdrawn EP3697845A1 (de) | 2017-10-16 | 2018-06-22 | Flammwidrige polycarbonat-acrylat-kautschuk-zusammensetzung mit geringem bisphenol-a-gehalt |
Country Status (6)
| Country | Link |
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| US (1) | US20200270451A1 (de) |
| EP (1) | EP3697845A1 (de) |
| KR (1) | KR20200058447A (de) |
| CN (1) | CN111225955A (de) |
| TW (1) | TW201922921A (de) |
| WO (1) | WO2019076493A1 (de) |
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| KR102007099B1 (ko) * | 2017-12-28 | 2019-08-02 | 롯데첨단소재(주) | 열가소성 수지 조성물 및 이로부터 형성된 성형품 |
| EP4311839A1 (de) * | 2022-07-28 | 2024-01-31 | Covestro Deutschland AG | Mineralgefüllte polycarbonat-blend-formmasse mit niedrigem bpa-gehalt und verfahren zu ihrer herstellung |
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- 2018-06-22 WO PCT/EP2018/066718 patent/WO2019076493A1/de not_active Ceased
- 2018-06-22 CN CN201880067477.8A patent/CN111225955A/zh active Pending
- 2018-06-22 KR KR1020207010527A patent/KR20200058447A/ko not_active Withdrawn
- 2018-06-22 EP EP18731477.8A patent/EP3697845A1/de not_active Withdrawn
- 2018-06-22 US US16/755,753 patent/US20200270451A1/en not_active Abandoned
- 2018-06-25 TW TW107121649A patent/TW201922921A/zh unknown
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| US20150315381A1 (en) * | 2012-12-07 | 2015-11-05 | Bayer Materialscience Ag | Flame-retardant polycarbonate molding materials i |
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| WO2019076493A1 (de) | 2019-04-25 |
| CN111225955A (zh) | 2020-06-02 |
| KR20200058447A (ko) | 2020-05-27 |
| US20200270451A1 (en) | 2020-08-27 |
| TW201922921A (zh) | 2019-06-16 |
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