WO2009080246A1 - Flammgeschützte schlagzähmodifizierte polycarbonat-zusammensetzungen - Google Patents
Flammgeschützte schlagzähmodifizierte polycarbonat-zusammensetzungen Download PDFInfo
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- WO2009080246A1 WO2009080246A1 PCT/EP2008/010696 EP2008010696W WO2009080246A1 WO 2009080246 A1 WO2009080246 A1 WO 2009080246A1 EP 2008010696 W EP2008010696 W EP 2008010696W WO 2009080246 A1 WO2009080246 A1 WO 2009080246A1
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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
- 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
- C08K3/24—Acids; Salts thereof
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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
- C08K3/32—Phosphorus-containing compounds
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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
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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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
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5313—Phosphinic compounds, e.g. R2=P(:O)OR'
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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
- 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
- C08L51/06—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 homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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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
Definitions
- the present invention relates to impact-modified polycarbonate compositions containing a salt of a phosphinic acid and talc, the use of the polycarbonate compositions for the production of moldings and the moldings themselves.
- thermoplastic molding compositions containing at least one metal salt of hypophosphorous acid and at least one aromatic polycarbonate resin and their mixture with a styrene-containing graft copolymer resin having a rubber content of 5-15%.
- the proportions of the styrene-containing graft copolymer are 10-40% by weight.
- the resulting molding compositions are characterized by good flame retardancy, high thermal stability under processing conditions and good weather resistance. Due to the low rubber content, other properties, in particular mechanical properties, are at a low level.
- thermoplastic molding compositions comprising 5-96% by weight of a polyester or polycarbonate, 1-30% by weight of a phosphinic acid salt and / or a diphosphinic acid salt and / or their polymers, 1-30% by weight of at least one organic phosphorus Flame retardant, and possible other additives.
- DE-A 102004049342 discloses thermoplastic molding compositions comprising 10-98% by weight of thermoplastic polymer, 0.01-50% by weight of hyperbranched polycarbonate or highly branched polyester or mixtures thereof, 1-40% by weight of halogen-free flame retardant selected from the group of P-containing or N-containing compounds or the PN condensates or mixtures thereof, and possible further additives.
- JP-A 2001-335699 describes flame retardant resin compositions containing two or more thermoplastic resins selected from styrene resin, aromatic polyester resin, polyamide resin, polycarbonate resin and polyphenylene ether resin and one or more organic phosphinic acid salts, and possible other additives.
- JP-A 2001-261973 (Daicel Chemical Industries Ltd.) describes compositions of thermoplastic resins and inorganic phosphinic acid salts.
- a combination is given of PBT, calcium phosphinate and PTFE.
- JP-A 2002-161211 discloses compositions of thermoplastic resins and flame retardants such as salts of phosphinic and phosphoric acids and their derivatives.
- flame retardants such as salts of phosphinic and phosphoric acids and their derivatives.
- Common flame retardants for polycarbonate / ABS blends are organic, aromatic phosphates. These compounds may be of low molecular weight, as a mixture of different oligomers or as a mixture of oligomers with low molecular weight compounds (e.g., WO-A 99/16828 and WO-A 00/31173). The good effect as
- the object of the present invention is to provide impact-modified polycarbonate molding compositions having an optimum combination of high heat resistance, good flame retardancy, excellent mechanical properties and good resistance to chemicals and hydrolysis.
- molding compositions or compositions comprising A) polycarbonate, B) rubber-modified graft polymer, C) a salt of a phosphinic acid and D) talc have the desired property profile.
- Polyalkylene terephthalate preferably the composition is free of rubber-free vinyl (co) polymer and / or polyalkylene terephthalate, F) 0 to 50 parts by weight, preferably 0.5 to 25 parts by weight (in each case based on the sum of
- Parts by weight of components A + B + C + D 100) additives, all parts by weight in the present application being normalized to give the sum of the parts by weight of components A + B + C + D in composition 100, the above technical Solve a task.
- Too high a proportion of component B has the disadvantage that the fire behavior and the heat resistance (Vicat B) are deteriorated.
- Aromatic polycarbonates and / or aromatic polyester carbonates according to component A which are suitable according to the invention are known from the literature or can be prepared by processes known from the literature (for example, see Schnell, Chemistry and Physics of Polycarbonates, Interscience Publishers, 1964, and DE-AS 1 495 626, DE -A 2 232 877, DE-A 2 703 376, DE-A 2 714 544, DE-A 3 000 610, DE-A 3 832 396, for the preparation of aromatic polyester carbonates, eg DE-A 3 077 934) ,
- Diphenols for the preparation of the aromatic polycarbonates and / or aromatic polyester carbonates are preferably those of the formula (I)
- A is a single bond, C 1 to C 5 -alkylene, C 2 to C 5 -alkylidene, C 5 to C 6 -cycloalkylidene, - O-, -SO-, -CO-, -S-, -SO 2 -, C 6 to C ] 2 arylene, to the other aromatic optionally
- Heteroatom-containing rings may be condensed, or a radical of the formula (II) or (JS)
- B are each C to C alkyl, preferably methyl, halogen, preferably chlorine and / or
- Each bromine x is independently 0, 1 or 2
- p is 1 or 0, and
- R 5 and R 6 are individually selectable for each X 1 independently of one another hydrogen or C 1 to C fi -
- Alkyl preferably hydrogen, methyl or ethyl
- X 1 is carbon and m is an integer from 4 to 7, preferably 4 or 5, with the proviso that on at least one atom X 1 , R 5 and R 6 are simultaneously alkyl.
- Preferred diphenols are hydroquinone, resorcinol, dihydroxydiphenols, bis (hydroxyphenyl) -C -alkanes, bis (hydroxyphenyl) -C-C-cycloalkanes, bis (hydroxyphenyl) ethers, bis (hydroxyphenyl) sulfoxides , Bis (hydroxyphenyl) -ketones, bis (hydroxyphenyl) -sulfones and ⁇ , ⁇ -bis (hydroxyphenyl) -diisopropyl-benzenes and their nuclear-brominated and / or nuclear-chlorinated derivatives.
- diphenols 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'-dihydroxydiphenylsulfide, 4,4'-dihydroxydiphenylsulfone and their di- and tetrabrominated or chlorinated derivatives such as 2,2-bis (3-chloro-4-) hydroxyphenyl) -propane, 2,2-bis (3,5-dichloro-4-hydroxyphenyl) -propane or 2,2-bis (3,5-dibromo-4-hydroxyphenyl) -propane.
- 2,2-bis (4-hydroxyphenyl) propane bisphenol-A
- the diphenols can be used individually or as any mixtures. The diphenols are known from
- Chain terminators suitable for the preparation of the thermoplastic, aromatic polycarbonates are, for example, phenol, p-chlorophenol, p-tert-butylphenol or 2,4,6-tribromophenol, but also long-chain alkylphenols, such as 4- [2- (2,4,4 -T ⁇ methylpentyl)] - phenol, 4- (l, 3-tetramethyl-butyl) -phenol according to DE-A 2,842,005 or monoalkylphenol or dialkylphenols having a total of 8 to 20 carbon atoms in the alkyl substituents such as 3,5-di-tert.
- alkylphenols such as 4- [2- (2,4,4 -T ⁇ methylpentyl)] - phenol, 4- (l, 3-tetramethyl-butyl) -phenol according to DE-A 2,842,005 or monoalkylphenol or dialkylphenols having a total of 8 to 20 carbon atoms in the alkyl substituents such as 3,5-d
- the amount of chain terminators to be used is generally between 0.5 mol% mol%, and 10 mol% mol%, based on the molar sum of the diphenols used in each case.
- the thermoplastic, aromatic polycarbonates have weight average molecular weights (M w , measured, for example, by GPC, ultracentricity or scattered light measurement) of 10,000 to 200,000 g / mol, preferably 15,000 to 80,000 g / mol, particularly preferably 24,000 to 32,000 g / mol.
- thermoplastic, aromatic polycarbonates may be branched in a known manner, preferably by the formation of from 0.05 to 2.0 mol%, based on the sum of the diphenols used, of trifunctional or more than trifunctional compounds, for example those containing three and more phenolic groups.
- both homopolycarbonates and copolycarbonates are suitable.
- inventive copolycarbonates according to component A it is also possible to use from 1 to 25% by weight, preferably from 2.5 to 25% by weight, based on the total amount of diphenols to be used, of hydroxyaryloxy endblocked polydiorganosiloxanes. These are known (US 3 419 634) and can be prepared by literature methods. The preparation of polydiorganosiloxane-containing copolycarbonates is described in DE-A 3 334 782.
- Preferred polycarbonates are, in addition to the bisphenol A homopolycarbonates, the copolycarbonates of bisphenol A with up to 15 mol%, based on the molar amounts of diphenols, of other than preferred or particularly preferred diphenols, in particular 2,2-bis (3,5 dibromo-4-hydroxyphenyl) -propane.
- Aromatic Dicarbon Acidihalogemde for the production of aromatic polyester carbonates are preferably the Diäuredichlo ⁇ de of isophthalic acid, terephthalic acid, diphenyl ether-4,4'-dicarboxylic acid and naphtha-2,6-dicarboxylic acid.
- a carbonic monohalogen preferably phosgene
- phosgene is additionally used as the bifunctional acid derivative.
- the amount of chain terminators is in each case from 0.1 to 10 mol%, based on moles of diphenol in the case of the phenolic chain terminators and, in the case of monocarboxylic acid chloride terminators, per mole of dicarboxylic acid dichloride.
- the aromatic polyester carbonates may also contain incorporated aromatic hydroxycarboxylic acids.
- the aromatic polyester carbonates can be branched both linearly and in a known manner (see DE-A 2 940 024 and DE-A 3 007 934).
- Suitable branching agents are, for example, trifunctional or polyfunctional carboxylic acid chlorides, such as tertiary acid acetone, cyanuric acid tetrachloride, 3,3 ', 4,4'-benzophenone tetracarboxylic acid tetrachloride, 1,4,5,8-naphthalene tetracarboxylic acid tetrachloride or pyrometallic tetrachloride, in amounts of 0 , 01 to 1.0 mol% (based on Dicarbonklaredichlo ⁇ de used) or trifunctional or polyfunctional phenols, such as Phloroglucm, 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) hept-2-ene , 4,6-dimethyl-2,4,6-t ⁇ - (4-hydroxyphenyl) -heptane, 1,3,5-T ⁇ - (4-hydroxyphenyl) -benzene, 1,1,1 -tn- (4- hydroxyphen
- the proportion of carbonate structural units can vary as desired.
- the proportion of carbonate groups is preferably up to 100 mol%, in particular up to 80 mol%, particularly preferably up to 50 mol%, based on the sum of ester groups and carbonate groups.
- Both the ester and the carbonate portion of the aromatic polyester carbonates may be present in the form of blocks or randomly distributed in the polycondensate.
- the relative solution viscosity ( ⁇ re i) of the aromatic polycarbonates and polyester carbonates is in the range of 1.18 to 1.4, preferably 1.20 to 1.32 (measured on solutions of 0.5 g of polycarbonate or polyester carbonate in 100 ml of methylene chloride solution at 25 ° C).
- thermoplastic, aromatic polycarbonates and polyester carbonates can be used alone or in any desired mixture.
- Component B comprises one or more graft polymers of
- diene rubbers EP (D) M rubbers (ie those based on ethylene / propylene and optionally diene)
- acrylate polyurethane
- Silicone silicone acrylate
- chloroprene ethylene / vinyl acetate rubbers.
- the graft base B.2 generally has an average particle size (d 50 value) of 0.05 to 10 .mu.m, preferably 0.1 to 5 .mu.m, particularly preferably 0.2 to 1 .mu.m.
- Monomers B.l are preferably mixtures of
- B.1.2 1 to 50 parts by weight of vinyl cyanides (unsaturated nitriles, such as acrylonitrile and methacrylonitrile) and / or (MeUi) ACTyISaWe- (C 1 -C 8 ) -alkyl esters, such as methyl methacrylate, n-butyl acrylate, t-butyl acrylate, and / or derivatives (such as anhydrides and Imides) of unsaturated carboxylic acids, for example maleic anhydride and N-phenylmaleimide.
- vinyl cyanides unsaturated nitriles, such as acrylonitrile and methacrylonitrile
- ACTyISaWe C 1 -C 8 ) -alkyl esters, such as methyl methacrylate, n-butyl acrylate, t-butyl acrylate, and / or derivatives (such as anhydrides and Imides) of unsaturated carboxylic acids, for example
- Preferred monomers B.1.1 are selected from at least one of the monomers styrene, ⁇ -methylstyrene and methyl methacrylate
- preferred monomers B.1.2 are selected from at least one of the monomers acrylonitrile, maleic anhydride and methyl methacrylate.
- Particularly preferred monomers are B.1.1 styrene and B.1.2 acrylonitrile.
- Preferred grafting bases B.2 are silicone acrylate rubbers, diene rubbers (for example based on butadiene and isoprene) or mixtures of diene rubbers. Diene rubbers in the sense of the invention are also to be understood as meaning copolymers of diene rubbers or mixtures thereof with other copolymerizable monomers (for example according to B.1.1 and B.1.2).
- the graft bases B.2 generally have a glass transition temperature of ⁇ 10 0 C, preferably ⁇ 0 0 C, more preferably ⁇ -10 0 C.
- the gel content of the graft base B.2 is at least 20% by weight, in the case of graft bases B.2 prepared in the emulsion polymerization, preferably at least 40% by weight (measured in toluene).
- the graft polymer of the components Bl and B.2 has a core-shell structure, wherein the component Bl forms the shell (also referred to as shell) and the component B.2 forms the core (see, for example, Ullmann's Encyclopedia of Industrial Chemistry, VCH-Verlag, Vol. A21, 1992, page 635 and page 656.
- the graft copolymers B are prepared by free-radical polymerization, e.g. by emulsion, suspension, solution or bulk polymerization, preferably by emulsion or bulk polymerization.
- Particularly suitable graft rubbers are also ABS polymers which are prepared in the emulsion polymerization process by redox initiation with an initiator system of organic hydroperoxide and ascorbic acid according to US Pat. No. 4,937,285.
- the grafting monomers are not grafted completely completely to the grafting base in the grafting reaction.
- graft polymers B are also used understood as products which are obtained by (co) polymerization of the graft monomers in the presence of the graft and incurred in the workup with.
- Suitable acrylate rubbers according to B.2 of the polymers B are preferably polymers of alkyl acrylates, optionally with up to 40 wt .-%, based on B.2 other polymerizable, ethylenically unsaturated monomers.
- Preferred polymerizable acrylic esters include C 1 to Cg alkyl esters, for example, methyl, ethyl, butyl, n-octyl and 2-ethylhexyl esters; Haloalkyl esters, preferably halogen-Q-Cg-alkyl esters, 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 B.2.
- Preferred "other" polymerizable, ethylenically unsaturated monomers which may optionally be used in addition to the acrylic acid esters for the preparation of the graft base B.2 are, for example, acrylonitrile, styrene, ⁇ -methylstyrene, acrylamides, vinyl-C 1 -C 6 -alkyl ethers, methyl methacrylate, butadiene.
- Preferred acrylate rubbers as the graft base B.2 are emulsion polymers which have a gel content of at least 60% by weight.
- Suitable silicone rubbers according to B.2. can be prepared by emulsion polymerization, as described for example in US 2891920 and US 3294725.
- Other suitable graft bases according to B.2 are silicone rubbers with graft-active sites, as described in DE-OS 3,704,657, DE-OS 3,704,655, DE-OS 3 631 540 and DE-OS 3 631 539.
- silicone acrylate rubbers are also suitable according to the invention.
- silicone-acrylate rubbers are composite rubbers having graft-active sites containing 10 to 90% by weight of silicone rubber and 90 to 10% by weight of polyalkyl (meth) acrylate rubber, wherein the two rubber components mentioned are in the composite rubber interpenetrate each other so that they do not differ significantly.
- the proportion of the silicone rubber component in the composite rubber is too high, the finished resin compositions have disadvantageous surface properties and degraded dyeability.
- the proportion of the polyalkyl (meth) acrylate rubber component in the composite rubber is too high, the impact resistance of the finished resin composition is adversely affected).
- Silicone acrylate rubbers are known and are described, for example, in US Pat. No. 5,807,914, EP 430134 and US Pat. No. 4,888,388.
- a graft polymer prepared by emulsion polymerization with methyl methacrylate and silicone-acrylate composite rubber is graft polymer prepared by emulsion polymerization with methyl methacrylate and silicone-acrylate composite rubber
- the graft polymer of component B) is a graft polymer prepared by mass, solution or mass-suspension polymerization, which has a rubber content (corresponding to the proportion of component B.2 in the graft polymer) of from 16 to 25 Wt .-%, preferably from 17 to 19 wt .-% and a graft shell, each based on the monomers of the graft shell 22 to 27 wt .-% of at least one of the monomers according to B.1.2 and 73 to 78 wt .-% contains at least one of the monomers according to B.1.1.
- the graft polymer comprises a butadiene-styrene block copolymer rubber as graft base B.2 (core) and a shell of styrene (B.1.1) and acrylonitrile (B.1.2).
- the graft polymer has a gel content (measured in acetone) of from 20 to 30% by weight, preferably from 22 to 26% by weight. If the graft polymer according to the invention contains a rubber content of less than 16% by weight, this has the disadvantage that the mechanical properties, in particular the notched impact strength and the resistance to chemicals, are at a level which is inadequate for many applications.
- the gel content of the graft base B.2 is determined at 25 ° C. in a suitable solvent (M. Hoffmann, H. Kroemer, R. Kuhn, Polymeranalytik I and II, Georg Thieme Verlag, Stuttgart 1977).
- the average particle size d 50 is the diameter, above and below which each 50 wt .-% of the particles are. It can be determined by ultracentrifuge measurement (W. Scholtan, H. Lange, Kolloid, Z. and Z. Polymere 250 (1972), 782-796).
- Component C is the diameter, above and below which each 50 wt .-% of the particles are. It can be determined by ultracentrifuge measurement (W. Scholtan, H. Lange, Kolloid, Z. and Z. Polymere 250 (1972), 782-796).
- the salt of a phosphinic acid (component C) in the sense of the invention is to be understood as meaning the salt of a phosphinic acid with an arbitrary metal cation. It is also possible to use mixtures of salts which differ in their metal cation.
- Metal cations are the cations metals of the 1st main group (alkali metals, preferably Li + , Na + , K + ), the 2nd main group (alkaline earth metals, preferably Mg 2+ , Ca 2+ , Sr 2+ ,
- a salt or a mixture of salts of a phosphinic acid of the formula (IV) is used,
- the average particle size d 50 of the phosphinic acid salt (component C) is less than 80 .mu.m, preferably less than 60 .mu.m, more preferably d 50 is between 10 .mu.m and 55 .mu.m.
- the average particle size d 50 is the diameter, above and below which each 50 wt .-% of the particles are. It is also possible to use mixtures of salts which differ in their mean particle size d 50 . These requirements of the particle size dso of the phosphinic acid salt are each associated with the technical effect that the flame retardance efficiency of the phosphinic acid salt is increased.
- the phosphinic acid salt can be used either alone or in combination with other phosphorus-containing flame retardants.
- the invention is not limited to, the invention.
- compositions free of phosphorus-containing flame retardants selected from the group of mono- and oligomeric phosphoric and phosphonic acid esters, phosphonateamines and
- Phosphazenes These other phosphorus-containing flame retardants such as the mono- and oligomeric phosphoric and phosphonic acid esters have the disadvantage over the phosphinic acid salts that they reduce the heat resistance of the molding compositions.
- Talk means a naturally occurring or synthetically produced talc.
- Pure talc has the chemical composition 3 MgO 4 SiO 2 H 2 O and thus an MgO content of 31.9 wt .-%, an SiO 2 content of 63.4 wt .-% and a content of chemically bound water of 4.8% by weight.
- Talc is a silicate with a layered structure.
- Naturally occurring talc materials generally do not have the above-mentioned composition for pure talc, as they are formed by partial replacement of the magnesium by other elements, by partial replacement of silicon, by e.g. Aluminum and / or by adhesions with other minerals such. Dolomite, magnesite and chlorite are contaminated.
- the special types of talc of the preferred embodiment of the invention are characterized by a particularly high purity, characterized by an MgO content of 28 to 35 wt .-%, preferably 30 to 33 wt .-%, particularly preferably 30.5 to 32 wt. -% and an SiO 2 content of 55 to 65 wt .-%, preferably 58 to 64 wt .-%, particularly preferably 60 to 62.5 wt .-%.
- Preferred talktypes are furthermore distinguished by an Al 2 O 3 content of less than 5% by weight, more preferably less than 1% by weight, in particular less than 0.7% by weight.
- Luzenac ® A3 from Luzenac Naintsch Mineral works GmbH (Graz, Austria) .Talktypen that do not meet this requirement on the purity of the preferred embodiment of the invention, for example, Luzenac, are SE-Standard, Luzenac SE-Super, Luzenac SE-Micro and Luzenac ST 10, 15, 20, 30 and 60, all of which are sold by Luzenac Naintsch Mineraltechnike GmbH.
- the talc according to component D in the form of finely ground types with an average particle size d 50 of 0.1 to 20 .mu.m, preferably 0.2 to 10 .mu.m, more preferably 1.1 to 5 .mu.m, most preferably 1 , 15 to 2.5 ⁇ m.
- the average particle size d 50 is the diameter, above and below which each 50 wt .-% of the particles are. It is also possible to use mixtures of talc types which differ in their mean particle size d 50 . These requirements for the average particle size d 50 of the talc are each associated with the technical effect that the mechanical properties of the resulting molding compositions are improved.
- the talc can be surface treated, e.g. be silanized to ensure better compatibility with the polymer. With regard to the processing and preparation of the molding compositions, the use of compacted talc is also advantageous.
- Component E comprises one or more thermoplastic vinyl (co) polymers E.I. and / or polyalkylene terephthalates E.2.
- Suitable as vinyl (co) polymers El polymers of at least one monomer from the group of vinyl aromatics, vinyl cyanides (unsaturated nitriles), (meth) acrylic acid (Ci-C 8 ) -
- Alkyl esters unsaturated carboxylic acids and derivatives (such as anhydrides and imides) unsaturated
- Carboxylic acids Particularly suitable are (co) polymers from E.1.1 50 to 99, preferably 60 to 80 parts by weight of vinylaromatics and / or ring-substituted vinylaromatics such as styrene, ⁇ -methylstyrene, p-methylstyrene, p-chlorostyrene) and / or (meth) Acrylic acid (C 1 -C 8 ) -alkyl esters, such as methyl methacrylate, ethyl methacrylate), and
- E.1.2 1 to 50, preferably 20 to 40 parts by weight of vinyl cyanides (unsaturated nitriles) such as
- Acrylonitrile and methacrylonitrile and / or (meth) acrylic acid (C 1 -C 8 ) -alkyl esters such as methyl methacrylate, n-butyl acrylate, t-butyl acrylate, and / or unsaturated carboxylic acids, such as maleic acid, and / or derivatives , such as anhydrides and imides, unsaturated
- Carboxylic acids for example maleic anhydride and N-phenylmaleimide.
- the vinyl (co) polymers El are resinous, thermoplastic and rubber-free.
- the copolymer of E.1.1 styrene and E.1.2 acrylonitrile is particularly preferred.
- the (co) polymers according to El are known and can be prepared by free-radical polymerization, in particular by emulsion, suspension, solution or bulk polymerization.
- the (co) polymers preferably have average molecular weights Mw (weight average, determined by light scattering or sedimentation) of between 15,000 and 200,000.
- the polyalkylene terephthalates of component E.2 are reaction products of aromatic dicarboxylic acids or their reactive derivatives, such as dimethyl esters or anhydrides, and aliphatic, cycloaliphatic or araliphatic diols and mixtures of these reaction products.
- Preferred polyalkylene terephthalates contain at least 80 wt .-%, preferably at least 90 wt .-%, based on the dicarboxylic acid terephthalate and at least 80 wt .-%, preferably at least 90 mol%, based on the diol component of ethylene glycol and / or butanediol-1 , 4-residues.
- the preferred 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'-diphenyldicarboxylic acid, succinic acid, adipic acid, sebacic acid, azelaic acid, cyclohexanediacetic acid.
- the preferred polyalkylene terephthalates in addition to ethylene glycol or butane-1,4-diol residues, may contain up to 20 mol%, preferably up to 10 mol%, of other aliphatic diols of 3 to 12 carbon atoms or cycloaliphatic diols of 6 to 21 carbon atoms.
- Contain atoms eg Residues of 1,3-propanediol, 2-ethylpropanediol-1,3, neopentyl glycol, pentanediol 1, 5, 1,6-hexanediol, cyclohexane-dimethanol 1, 4, 3-ethylpentanediol-2,4, 2-methylpentanediol 2,4,2,2,4-trimethylpentanediol-1,3,2-ethylhexanediol-1,3,2,2-diethylpropanediol-1,3-hexanediol-2,5,1,4-di- ( ⁇ -hydroxyethoxy ) benzene, 2,2-bis (4-hydroxycyclohexyl) propane, 2,4-dihydroxy-1,1,3,3-tetramethylcyclobutane, 2,2-bis- (4-.beta.-hydroxyethoxy-phenyl )
- the 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.
- preferred branching agents are trimesic acid, trimellitic acid, trimethylolethane and -propane and pentaerythritol.
- Particularly preferred are polyalkylene terephthalates which have been prepared solely from terephthalic acid and its reactive derivatives (for example their dialkyl esters) and ethylene glycol and / or 1,4-butanediol, and mixtures of these polyalkylene terephthalates.
- Mixtures of 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 polyalkylene terephthalates preferably used have a Grenzvis- viscosity of 0.4 to 1.5 dl / g, preferably 0.5 to 1.2 dl / g, as measured in phenol / o-dichlorobenzene (1: 1 parts by weight) at 25 ° C in the Ubbelohde viscometer.
- the polyalkylene terephthalates can be prepared by known methods (see, for example, Kunststoff-Handbuch, Volume VIII, pp. 695 et seq., Carl-Hanser-Verlag, Kunststoff 1973).
- composition may contain further commercially available additives according to component F), such as flame retardant synergists, antidripping agents (for example compounds of the substance classes of fluorinated polyolefins, silicones and aramid fibers), lubricants and mold release agents
- flame retardant synergists for example compounds of the substance classes of fluorinated polyolefins, silicones and aramid fibers
- antidripping agents for example compounds of the substance classes of fluorinated polyolefins, silicones and aramid fibers
- lubricants for example compounds of the substance classes of fluorinated polyolefins, silicones and aramid fibers
- nucleating agents for example, pentaerythritol tetrastearate
- stabilizers for example, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium EDTA, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite
- Alkyl sulfonates or polyamide-containing polymers acids, fillers and reinforcing materials (for example glass or carbon fibers, mica, kaolin, talc, CaCO 3 and glass flakes) and
- the inventive thermoplastic molding compositions are prepared by mixing the respective components in a known manner and melt-compounded at temperatures of 26O 0 C to 300 0 C in conventional units such as internal mixers, extruders and twin-screw and melt-extruded.
- the mixing of the individual constituents can be carried out in a known manner both successively and simultaneously, both at about 20 ° C. (room temperature) and at a higher temperature.
- the invention also provides processes for the preparation of the molding compositions and the use of the molding compositions for the production of moldings and the moldings themselves.
- the molding compositions of the invention can be used for the production of moldings of any kind. These can be produced 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.
- moldings are films, profiles, housing parts of any kind, e.g. for household appliances such as televisions, juicers, 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, as well as body and interior components for commercial vehicles, in particular for the automotive sector.
- household appliances such as televisions, juicers, 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, as well as body and interior components for commercial vehicles, in particular for the automotive sector.
- the molding compositions according to the invention can also be used, for example, for the production of the following moldings or moldings: interior fittings for rail vehicles, ships, aircraft, buses and other motor vehicles, housings of electrical appliances containing small transformers, housings for information processing and transmission equipment, housings and panels for medical applications Apparatus, massage apparatus and housings therefor, toy vehicles for children, flat wall elements, housings for safety devices and for televisions, heat-insulated transport containers, fittings for plumbing and bathroom equipment, cover grids for fan openings and housings for garden tools.
- interior fittings for rail vehicles, ships, aircraft, buses and other motor vehicles housings of electrical appliances containing small transformers, housings for information processing and transmission equipment, housings and panels for medical applications Apparatus, massage apparatus and housings therefor, toy vehicles for children, flat wall elements, housings for safety devices and for televisions, heat-insulated transport containers, fittings for plumbing and bathroom equipment, cover grids for fan openings and housings for garden tools.
- M w of about 17,000 to 19,000 g / mol (determined by GPC).
- Branched polycarbonate based on bisphenol A with a relative solution viscosity of ⁇ rel 1.34, measured in CH 2 Cl 2 as solvent at 25 ° C. and a concentration of 0.5 g / 100 ml, which is obtained by using 0.3 mol% isatin biscresol Branched to the sum of mol .-% of bisphenol A and isatinbiscresol.
- ABS polymer with core-shell structure produced by bulk polymerization of 82% by weight, based on the ABS polymer, of a mixture of 24% by weight of acrylonitrile and 76% by weight of styrene in the presence of 18% by weight based on the ABS polymer of a polybutadiene-styrene block copolymer rubber having a styrene content of 26 wt .-%.
- the gel content of the ABS polymer is 24% by weight (measured in acetone).
- Component B-2 impact modifier, methyl methacrylate-modified silicone-acrylate rubber, Metablen SX ® 005 from Mitsubishi Rayon Co., Ltd., CAS 143106-82-5.
- Component C Component C-I (comparative) Bisphenol A-based oligophosphate
- Component F-1 Polytetrafluoroethylene (PTFE)
- Component F-2 pentaerythritol tetrastearate
- Component F-3 Irganox ® B900 (manufacturer: Ciba Specialty Chemicals Inc., Basel, Switzerland)
- the feedstocks listed in Table 1 are compounded at a speed of 225 rpm and a throughput of 20 kg / h at a machine temperature of 260 0 C and granulated.
- the finished granules are processed on an injection molding machine to the corresponding specimens (melt temperature 240 0 C, mold temperature 8O 0 C, flow front speed 240 mm / s).
- the characterization is carried out in accordance with DIN EN ISO 180/1 A (notched Izod impact strength a ⁇ ), DIN EN ISO 527 (tensile Young's modulus and elongation at break), DIN ISO 306 (Vicat softening temperature, method B with 50 N load and a heating rate of 120 K / h), ISO 11443 (melt viscosity), DIN EN ISO 1133 (melt volume flow rate, MVR) and UL 94 V (on bars measuring 127 ⁇ 12.7 ⁇ 1.5 mm measured).
- the MVR value before storage is referred to in Table 1 as the "MVR value of the original sample”.
- Under chemical resistance (ESC behavior) is the time to break at 2.4% Randturadehnung after storage of the specimen in toluene / isopropanol (60/40 parts by volume) indicated at room temperature.
- Compositions 3 and 4 according to the invention have improved Vicat heat distortion resistance, shorter afterburning time, better ESC behavior, a higher modulus of elasticity and better tear resistance and a higher resistance to hydrolysis compared to Comparative Examples 1 and 2. This technical effect is due to the difference that in the comparative examples as flame retardants an oligophosphate is used in place of the calcium phosphinate according to the invention.
- the composition 6 according to the invention has a shorter afterburning time and better ESC behavior with unchanged Vicat heat distortion resistance. This technical effect is due to the difference that no talc is contained in Comparative Example 5.
- the composition 8 according to the invention has improved Vicat heat distortion resistance, shorter afterburn time, a higher modulus of elasticity and better tear resistance. This technical effect is due to the difference that, in the comparative example, an oligophosphate is used as the flame retardant instead of the calcium phosphinate according to the invention.
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Abstract
Description
Claims
Priority Applications (8)
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JP2010538437A JP2011506706A (ja) | 2007-12-20 | 2008-12-16 | 防炎性耐衝撃性改良ポリカーボネート組成物 |
CA2709953A CA2709953A1 (en) | 2007-12-20 | 2008-12-16 | Flame-proof impact resistant-modified polycarbonate compositions |
MX2010006308A MX2010006308A (es) | 2007-12-20 | 2008-12-16 | Composicion de policarbonato ignifugas y modificadas con resistencia elevada al impacto. |
BRPI0821350-0A BRPI0821350A2 (pt) | 2007-12-20 | 2008-12-16 | Composições de policarbonato com modificada resistência ao impacto, à prova de chamas |
KR1020107013520A KR101530404B1 (ko) | 2007-12-20 | 2008-12-16 | 방염 내충격성-개질된 폴리카보네이트 조성물 |
CN200880121778.0A CN101981108B (zh) | 2007-12-20 | 2008-12-16 | 抗冲击改性的阻燃性聚碳酸酯组合物 |
AT08864635T ATE513010T1 (de) | 2007-12-20 | 2008-12-16 | Flammgeschützte schlagzähmodifizierte polycarbonat-zusammensetzungen |
EP08864635A EP2225322B1 (de) | 2007-12-20 | 2008-12-16 | Flammgeschützte schlagzähmodifizierte polycarbonat-zusammensetzungen |
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DE102007061761.7 | 2007-12-20 | ||
DE102007061761A DE102007061761A1 (de) | 2007-12-20 | 2007-12-20 | Flammgeschützte schlagzähmodifizierte Polycarbonat-Zusammensetzungen |
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WO2009080246A1 true WO2009080246A1 (de) | 2009-07-02 |
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PCT/EP2008/010696 WO2009080246A1 (de) | 2007-12-20 | 2008-12-16 | Flammgeschützte schlagzähmodifizierte polycarbonat-zusammensetzungen |
Country Status (14)
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US (1) | US20090198010A1 (de) |
EP (1) | EP2225322B1 (de) |
JP (1) | JP2011506706A (de) |
KR (1) | KR101530404B1 (de) |
CN (1) | CN101981108B (de) |
AT (1) | ATE513010T1 (de) |
BR (1) | BRPI0821350A2 (de) |
CA (1) | CA2709953A1 (de) |
DE (1) | DE102007061761A1 (de) |
ES (1) | ES2366272T3 (de) |
MX (1) | MX2010006308A (de) |
RU (1) | RU2010129720A (de) |
TW (1) | TW200946591A (de) |
WO (1) | WO2009080246A1 (de) |
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WO2012038419A1 (de) * | 2010-09-24 | 2012-03-29 | Bayer Materialscience Ag | Flammgeschützte schlagzähmodifizierte batteriegehäuse auf polycarbonatbasis ii |
WO2017162769A1 (de) | 2016-03-23 | 2017-09-28 | Covestro Deutschland Ag | Polycarbonat-zusammensetzungen mit verbesserter hydrolysebeständigkeit |
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DE102007061759A1 (de) * | 2007-12-20 | 2009-06-25 | Bayer Materialscience Ag | Flammgeschützte schlagzähmodifizierte Polycarbonat-Zusammensetzungen |
US8080599B2 (en) * | 2009-09-23 | 2011-12-20 | Sabic Innovative Plastics Ip B.V. | Thermoplastic polyester compositions, methods of manufacture, and articles thereof |
EP2377899A1 (de) | 2010-04-14 | 2011-10-19 | Styron Europe GmbH | Carbonatmischungszusammensetzung mit verbesserter Widerstandsfähigkeit gegen Rissbildung aufgrund von Umweltbelastungen |
KR101557567B1 (ko) | 2011-06-28 | 2015-10-05 | 트린세오 유럽 게엠베하 | 폴리카보네이트 수지 조성물 |
EP2554597B1 (de) | 2011-08-02 | 2014-12-31 | Styron Europe GmbH | Chemikalienbeständige und flammhemmende Polycarbonatpolyesterzusammensetzung |
US9127155B2 (en) * | 2012-04-11 | 2015-09-08 | Sabic Global Technologies B.V. | Phosphorus free flame retardant composition |
EP3055348B1 (de) * | 2013-10-08 | 2019-04-10 | Covestro Deutschland AG | Faserverbundwerkstoff, verwendung dafür und verfahren zu dessen herstellung |
JP6836246B2 (ja) * | 2015-10-30 | 2021-02-24 | イタルマッチ ケミカルズ ソチエタ ペル アツィオーニITALMATCH CHEMICALS S.p.A. | 熱可塑性衝撃改良スチレン系ポリマーをベースとした、環境にやさしい難燃性組成物および成形材料 |
WO2019225558A1 (ja) * | 2018-05-22 | 2019-11-28 | 帝人株式会社 | 難燃性ポリカーボネート樹脂組成物 |
DE102021116975A1 (de) | 2021-07-01 | 2023-01-05 | R. Stahl Schaltgeräte GmbH | Kunststoffteil und Verfahren zu seiner Herstellung |
CN114573970B (zh) * | 2022-03-28 | 2023-11-03 | 金发科技股份有限公司 | 一种聚碳酸酯组合物及其制备方法与应用 |
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WO2012038419A1 (de) * | 2010-09-24 | 2012-03-29 | Bayer Materialscience Ag | Flammgeschützte schlagzähmodifizierte batteriegehäuse auf polycarbonatbasis ii |
CN103180995A (zh) * | 2010-09-24 | 2013-06-26 | 拜耳知识产权有限责任公司 | 基于聚碳酸酯ii的阻燃冲击改性电池组外壳 |
WO2017162769A1 (de) | 2016-03-23 | 2017-09-28 | Covestro Deutschland Ag | Polycarbonat-zusammensetzungen mit verbesserter hydrolysebeständigkeit |
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EP2225322A1 (de) | 2010-09-08 |
CN101981108A (zh) | 2011-02-23 |
ES2366272T3 (es) | 2011-10-18 |
EP2225322B1 (de) | 2011-06-15 |
KR20100098403A (ko) | 2010-09-06 |
BRPI0821350A2 (pt) | 2015-06-16 |
TW200946591A (en) | 2009-11-16 |
JP2011506706A (ja) | 2011-03-03 |
DE102007061761A1 (de) | 2009-06-25 |
ATE513010T1 (de) | 2011-07-15 |
CN101981108B (zh) | 2014-01-29 |
CA2709953A1 (en) | 2009-07-02 |
MX2010006308A (es) | 2010-07-05 |
RU2010129720A (ru) | 2012-01-27 |
US20090198010A1 (en) | 2009-08-06 |
KR101530404B1 (ko) | 2015-06-19 |
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