WO2012013564A1 - Matières moulables ignifugées - Google Patents

Matières moulables ignifugées Download PDF

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WO2012013564A1
WO2012013564A1 PCT/EP2011/062512 EP2011062512W WO2012013564A1 WO 2012013564 A1 WO2012013564 A1 WO 2012013564A1 EP 2011062512 W EP2011062512 W EP 2011062512W WO 2012013564 A1 WO2012013564 A1 WO 2012013564A1
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acid
molding compositions
component
thermoplastic molding
compositions according
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PCT/EP2011/062512
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German (de)
English (en)
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Siqi Xue
Sabine Fuchs
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Basf Se
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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
    • 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
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • 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
    • C08K3/10—Metal compounds
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass

Definitions

  • the invention relates to thermoplastic molding compositions containing
  • thermoplastic polymer 10 to 98% by weight of a thermoplastic polymer
  • the invention relates to the use of the molding compositions according to the invention for the production of fibers, films and moldings of any kind, as well as the moldings obtainable in this case.
  • Thermoplastic polyamides such as PA6 and PA66 are often used in the form of glass fiber reinforced molding materials as construction materials for components that are exposed to elevated temperatures during their lifetime.
  • red phosphorus as a conventional flame retardant is known, for example, from DE-A 39 05 038, DE-A 41 00 740 and DE-A 1 96 48 503, this being usually combined with reinforcing materials, in particular glass fibers, for the necessary mechanical properties ,
  • reinforcing materials in particular glass fibers
  • glass fibers show the so-called wick effect, i. the fire class deteriorates considerably by the addition of fibers.
  • the replacement of halogen-containing compounds is desirable from an ecological point of view.
  • thermoplastics of any kind.
  • An enumeration of suitable thermoplastics can be found for example in the plastic paperback (Hrsg. Saechtling), edition 1989, where sources are also called. Processes for the production of such thermoplastics are known per se to the person skilled in the art.
  • thermoplastics are selected from the group of polyamides, polyesters, polycarbonates, vinylaromatic polymers, ASA, ABS, SAN polymers, POM, PPE, polyarylene ether sulfones, polyamides, polyesters and polycarbonates being preferred.
  • component (A) the molding compositions according to the invention contain 10 to 98, preferably 20 to 97 and in particular 30 to 95 wt .-% of at least one thermoplastic polymer, preferably polyester / polycarbonates.
  • polyesters A) based on aromatic dicarboxylic acids and an aliphatic or aromatic dihydroxy compound are used.
  • a first group of preferred polyesters are polyalkylene terephthalates, in particular those having 2 to 10 carbon atoms in the alcohol part.
  • polyalkylene terephthalates are known per se and described in the literature. They contain an aromatic ring in the main chain derived from the aromatic dicarboxylic acid. The aromatic ring may also be substituted, e.g. by halogen such as chlorine and bromine or by C 1 -C 4 -alkyl groups such as methyl, ethyl, i- or n-propyl and n-, i- or t-butyl groups.
  • polyalkylene terephthalates can be prepared by reacting aromatic dicarboxylic acids, their esters or other ester-forming derivatives with aliphatic dihydroxy compounds in a manner known per se.
  • Preferred dicarboxylic acids are 2,6-naphthalenedicarboxylic acid, terephthalic acid and isophthalic acid or mixtures thereof.
  • Up to 30 mol%, preferably not more than 10 mol% of the aromatic dicarboxylic acids can be replaced by aliphatic or cycloaliphatic dicarboxylic acids such as adipic acid, azelaic acid, sebacic acid, dodecanedioic acids and cyclohexanedicarboxylic acids.
  • aliphatic dihydroxy compounds are diols having 2 to 6 carbon atoms, in particular 1, 2-ethanediol, 1, 3-propanediol, 1, 4-butanediol, 1, 6-hexanediol, 1, 4-hexanediol, 1, 4- Cyclohexanediol, 1, 4-cyclohexanedimethanol and neopentyl glycol or mixtures thereof.
  • polyesters (A) are polyalkylene terephthalates which are derived from alkanediols having 2 to 6 C atoms. Of these, in particular, polyethylene terephthalate, polypropylene terephthalate and polybutylene terephthalate or mixtures thereof are preferred. Also preferred are PET and / or PBT, which contain up to 1 wt .-%, preferably up to 0.75 wt .-% 1, 6-hexanediol and / or 2-methyl-1, 5-pentanediol as further monomer units.
  • the viscosity number of the polyesters (A) is generally in the range from 50 to 220, preferably from 80 to 160 (measured in a 0.5% strength by weight solution in a phenol / o-dichlorobenzene mixture (wt. 1) at 25 ° C. in accordance with ISO 1628.
  • Particular preference is given to polyesters whose carboxyl end group content is up to 100 meq / kg, preferably up to 50 meq / kg and in particular up to 40 meq / kg of polyesters Method of DE-A 44 01 055.
  • the carboxyl end group content is usually determined by titration method (eg potentiometry).
  • Particularly preferred molding compositions contain as component A) a mixture of polyesters which are different from PBT, such as polyethylene terephthalate (PET).
  • PBT polyethylene terephthalate
  • the proportion e.g. of the polyethylene terephthalate is preferably in the mixture up to 50, in particular 10 to 35 wt .-%, based on
  • PET recyclates also termed scrap PET
  • PBT polyalkylene terephthalates
  • Post Industrial Recyclate these are production waste in polycondensation or in processing, e.g. Sprues in injection molding processing, starting goods in injection molding or extrusion
  • Post Consumer Recyclate are plastic items that are collected and processed after use by the end user. By far the most dominant items in volume terms are blow-molded PET bottles for mineral water, soft drinks and juices. Both types of recycled material can be present either as regrind or in the form of granules. In the latter case, the slag cyclates after separation and purification are melted in an extruder and granulated. This usually facilitates the handling, the flowability and the metering for further processing steps.
  • the maximum edge length should be 10 mm, preferably less than 8 mm.
  • the residual moisture content after drying is preferably ⁇ 0.2%, in particular ⁇ 0.05%.
  • Suitable aromatic dicarboxylic acids are the compounds already described for the polyalkylene terephthalates. Preference is given to mixtures of 5 to
  • isophthalic acid 100 mol% isophthalic acid and 0 to 95 mol% terephthalic acid, in particular mixtures of about 80% terephthalic acid with 20% isophthalic acid to about equivalent mixtures of these two acids used.
  • the aromatic dihydroxy compounds preferably have the general formula
  • Z represents an alkylene or cycloalkylene group having up to 8 C atoms, an arylene group having up to 12 C atoms, a carbonyl group, a sulfonyl group, an oxygen or sulfur atom or a chemical bond and in the m is the value 0 to 2 has.
  • the compounds may also carry C 1 -C 6 -alkyl or alkoxy groups and fluorine, chlorine or bromine as substituents on the phenylene groups.
  • 2,2-di (3 ', 5'-dimethyl-4'-hydroxyphenyl) propane or mixtures thereof are preferred.
  • polyalkylene terephthalates and fully aromatic polyesters. These generally contain from 20 to 98% by weight of the polyalkylene terephthalate and from 2 to 80% by weight of the wholly aromatic polyester.
  • polyester block copolymers such as copolyetheresters may also be used.
  • Such products are known per se and are known in the literature, e.g. in the
  • Suitable halogen-free polycarbonates are, for example, those based on diphenols of the general formula
  • Q is a single bond, a d- to Ce-alkylene, a C2 to C3 alkylidene, a C3 to C6 cycloalkylidene group, a CQ to Ci2-arylene group and -O-, -S- or -SO 2 - and m is an integer from 0 to 2.
  • the diphenols may also have substituents on the phenylene radicals, such as C 1 -C 6 -alkyl or C 1 -C 6 -alkoxy.
  • Preferred diphenols of the formula are, for example, hydroquinone, resorcinol, 4,4'-dihydroxydiphenyl, 2,2-bis (4-hydroxyphenyl) propane, 2,4-bis (4-hydroxyphenyl) -2-methylbutane, 1,1 bis (4-hydroxyphenyl) -cyclohexane.
  • Particular preference is given to 2,2-bis (4-hydroxyphenyl) propane and 1,1-bis (4-hydroxyphenyl) cyclohexane and also 1,1-bis- (4-hydroxyphenyl) -3,3,5- trimethylcyclohexane.
  • Both homopolycarbonates and copolycarbonates are suitable as component A, in addition to the bisphenol A homopolymer, the copolycarbonates of bisphenol A are preferred.
  • the suitable polycarbonates may be branched in a known manner, preferably by the incorporation of 0.05 to 2.0 mol -%, based on the sum of the diphenols used, of at least trifunctional compounds, for example those having three or more than three phenolic OH groups.
  • Particularly suitable polycarbonates have proven, the relative viscosities n re i from 1, 10 to 1, 50, in particular from 1, 25 to 1, 40 have. This corresponds to average molecular weights M w (weight average) of from 10,000 to 200,000, preferably from 20,000 to 80,000 g / mol.
  • the diphenols of the general formula are known per se or can be prepared by known processes.
  • the polycarbonates can be prepared, for example, by reacting the diphenols with phosgene by the phase boundary process or with phosgene by the homogeneous phase process (the so-called pyridine process), the molecular weight to be set in each case being achieved in a known manner by a corresponding amount of known chain terminators.
  • phosgene by the phase boundary process or with phosgene by the homogeneous phase process (the so-called pyridine process)
  • the molecular weight to be set in each case being achieved in a known manner by a corresponding amount of known chain terminators.
  • Suitable chain terminators include phenol, pt-butylphenol but also long-chain alkylphenols such as 4- (1, 3-tetramethyl-butyl) phenol, according to DE-OS 28 42 005 or monoalkylphenols or dialkylphenols having a total of 8 to 20 carbon atoms in the alkyl substituents according to DE-A 35 06 472, such as p-nonylphenol, 3,5-di-t-butylphenol, pt-octylphenol, p-dodecylphenol, 2- (3,5-dimethyl-heptyl) -phenol and 4- ( 3,5-dimethylheptyl) -phenol.
  • alkylphenols such as 4- (1, 3-tetramethyl-butyl) phenol, according to DE-OS 28 42 005 or monoalkylphenols or dialkylphenols having a total of 8 to 20 carbon atoms in the alkyl substituents according to DE-A 35 06 472, such
  • Halogen-free polycarbonates in the context of the present invention means that the polycarbonates are selected from halogen-free diphenols, halogen-free chain terminators and optionally halogenated genke-free branching, wherein the content of minor ppm amounts of saponifiable chlorine, resulting, for example, from the production of polycarbonates with phosgene by the interfacial process, is not to be regarded as halogen-containing in the context of the invention.
  • Such polycarbonates with ppm contents of saponifiable chlorine are halogen-free polycarbonates in the context of the present invention.
  • suitable components A) may be mentioned amorphous polyester carbonates, wherein phosgene against aromatic dicarboxylic acid units such as isophthalic acid and / or terephthalic acid units, was replaced in the preparation.
  • phosgene against aromatic dicarboxylic acid units such as isophthalic acid and / or terephthalic acid units
  • copolycarbonates with cycloalkyl radicals as monomer units are described in EP-A 365 916.
  • bisphenol A can be replaced by bisphenol TMC.
  • Such polycarbonates are available under the trademark APEC HT® from Bayer.
  • the molding compositions according to the invention contain 10 to 98, preferably 20 to 97 and in particular 30 to 95 wt .-% of at least one polyamide.
  • the polyamides of the molding compositions according to the invention generally have a viscosity number of from 90 to 350, preferably from 110 to 240 ml / g, determined in a 0.5% strength by weight solution in 96% strength by weight sulfuric acid at 25 ° C. ISO 307.
  • Semicrystalline or amorphous resins having a weight average molecular weight of at least 5,000 such as U.S. Patents 2,071,250, 2,071,251, 2,130,523, 2,130,948, 2,241,322, 2,312,966, 2,512,606 and 3,393,210 are preferred.
  • Examples include polyamides derived from lactams having 7 to 13 ring members, such as polycaprolactam, polycapryllactam and polylaurolactam and polyamides obtained by reacting dicarboxylic acids with diamines.
  • Suitable dicarboxylic acids are alkanedicarboxylic acids having 6 to 12, in particular 6 to 10, carbon atoms and aromatic dicarboxylic acids.
  • adipic acid, azelaic acid, sebacic acid, dodecanedioic acid and terephthalic and / or isophthalic acid may be mentioned as acids.
  • Suitable diamines are, in particular, alkanediamines having 6 to 12, in particular 6 to
  • polyamides are polyhexamethylene adipamide, polyhexamethylene sebacamide and polycaprolactam and also copolyamides 6/66, in particular with a content of 5 to 95% by weight of caprolactam units.
  • polyamides are obtainable from ⁇ -aminoalkyl nitriles such as aminocapronitrile (PA 6) and adiponitrile with hexamethylenediamine (PA 66) by so-called direct polymerization in the presence of water, as for example in DE-A 10313681, EP-A 1 198491 and EP 922065.
  • PA 6 aminocapronitrile
  • PA 66 adiponitrile with hexamethylenediamine
  • PA 66 adiponitrile with hexamethylenediamine
  • polyamides may also be mentioned which, for example, by condensation of 1, 4-
  • Diaminobutane with adipic acid are available at elevated temperature (polyamide 4.6). Manufacturing processes for polyamides of this structure are known e.g. in EP-A 38 094, EP-A 38 582 and EP-A 39 524 described. Furthermore, polyamides which are obtainable by copolymerization of two or more of the abovementioned monomers or mixtures of a plurality of polyamides are suitable, the mixing ratio being arbitrary. Particular preference is given to mixtures of polyamide 66 with other polyamides, in particular copolyamides 6/66.
  • the triamine content is less than 0.5, preferably less than 0.3 wt .-% (see EP-A 299 444).
  • the production of the preferred partly aromatic copolyamides with a low triamine content can be carried out by the processes described in EP-A 129 195 and 129 196.
  • PA 46 tetramethylenediamine, adipic acid
  • PA 66 hexamethylenediamine, adipic acid
  • PA 610 hexamethylenediamine, sebacic acid
  • PA 612 hexamethylenediamine, decanedicarboxylic acid
  • PA 613 hexamethylenediamine, undecanedicarboxylic acid
  • PA 1212 1, 12-dodecanediamine, decanedicarboxylic acid
  • PA 1313 1, 13-diaminotridecane, undecanedicarboxylic acid
  • PA 6T hexamethylenediamine, terephthalic acid
  • PA MXD6 m-xylylenediamine, adipic acid
  • PA 6I hexamethylenediamine, isophthalic acid
  • PA 6-3-T trimethylhexamethylenediamine, terephthalic acid
  • PA 6 / 6T (see PA 6 and PA 6T)
  • PA 6/66 (see PA 6 and PA 66)
  • PA 6/12 see PA 6 and PA 12
  • PA 66/6/610 see PA 66, PA 6 and PA 610)
  • PA 6I / 6T see PA 61 and PA 6T
  • PA PA PACM 12 diaminodicyclohexylmethane, laurolactam
  • PA 6I / 6T / PACM such as PA 6I / 6T + diaminodicyclohexylmethane
  • PA PDA-T phenylenediamine, terephthalic acid
  • the thermoplastic molding compositions contain 0.5 to 40, preferably 1 to 30 and in particular 2 to 20 wt .-% of a phosphorus-containing flame retardant.
  • the phosphorus-containing compounds of component B) are organic and inorganic phosphorus-containing compounds in which the phosphorus has the valence state -3 to +5.
  • level of oxidation is understood to mean the term "oxidation state” as used in the textbook of inorganic chemistry by A.F. Hollemann and E. Wiberg, Walter des Gruyter and Co. (1964, 57th to 70th edition), pages 166 to 177, is reproduced.
  • Phosphorus compounds of valence levels -3 to +5 are derived from phosphine (-3), diphosphine (-2), phosphine oxide (-1), elemental phosphorus (+0), hypophosphorous acid (+1), phosphorous acid (+3 ), Hypodiphosphoric acid (+4) and phosphoric acid (+5).
  • Examples of phosphorus compounds of the phosphine class which have the valence state -3 are aromatic phosphines, such as triphenylphosphine, tritolylphosphine, trinonylphosphine, Trinaphthylphosphine and trisnonylphenylphosphine, among others. Triphenylphosphine is particularly suitable.
  • Examples of phosphorus compounds of the diphosphine class which have the valence state -2 are tetraphenyldiphosphine, tetranaphthyldiphosphine and the like. Tetranaphthyldiphosphine is particularly suitable.
  • Phosphorus compounds of valence state -1 are derived from the phosphine oxide.
  • R 1 , R 2 and R 3 are the same or different alkyl, aryl, alkylaryl or cycloalkyl groups having 8 to 40 carbon atoms.
  • phosphine oxides are triphenylphosphine oxide, tritolylphosphine oxide, trisnonylphenylphosphine oxide, tricyclohexylphosphine oxide, tris (n-butyl) phosphine oxide, tris (n-hexyl) phosphine oxide, tris (n-octyl) phosphine oxide, tris (cyanoethyl) - phosphine oxide, benzyl bis (cyclohexyl) phosphine oxide, benzyl bisphenyl phosphine oxide, phenyl bis (n-hexyl) phosphine oxide.
  • oxidized reaction products of phosphine with aldehydes especially from t-butylphosphine with glyoxal.
  • Particular preference is given to using triphenylphosphine oxide, tricyclohexlyphosphine oxide, tris (n-octyl) phosphine oxide and tris (cyanoethyl) phosphine oxide.
  • triphenylphosphine sulfide and its derivatives of phosphine oxides as described above.
  • Phosphorus compounds of the "oxidation state" +1 are, for example, hypophosphites of purely organic nature, for example organic hypophosphites, such as cellulose hypophosphite esters, esters of hypophosphorous acids with diols, for example of 1,10-dodecyldiol. Also substituted phosphinic acids and their anhydrides, such as diphenylphosphinic, can be used.
  • diphenylphosphinic acid di-p-tolylphosphinic acid, di-cresylphosphinic anhydride, but also compounds such as hydroquinone, ethylene glycol, propylene glycol bis (diphenylphosphinic acid) esters, inter alia, are suitable.
  • aryl (alkyl) phosphinic acid amides such as, for example, diphenylphosphinic acid dimethylamide and sulfonamicodaryl (alkyl) phosphinic acid derivatives, for example p-tolylsulfonamidodiphenylphosphinic acid.
  • Hydroquinone and ethylene glycol bis (diphenylphosphinic) esters and the bis-diphenylphosphinate of hydroquinone are preferably used.
  • Phosphorus compounds of the oxidation state +3 are derived from the phosphorous acid.
  • +3 valence phosphorous is in triaryl (alkyl) phosphites, e.g. Triphenyl phosphite, tris (4-decylphenyl) phosphite, tris (2,4-di-tert-butylphenyl) phosphite or phenyldi- dide phosphite and the like. contain. But there are also diphosphites, such. Propylene glycol-1, 2 bis (diphosphite) or cyclic phosphites derived from pentaerythritol, neopentyl glycol or catechol, in question.
  • methyl neopentyl glycol phosphonate and phosphite and dimethyl pentaerythritol diphosphonate and phosphite are particularly preferred.
  • phosphorus compounds of oxidation state +4 are mainly hypodiphosphates, such. Tetraphenyl hypodiphosphate or Bisneopentylhypodiphosphat into consideration.
  • Suitable phosphorus compounds of the oxidation state +5 are, in particular, alkyl- and aryl-substituted phosphates. Examples are phenylbisdodecylphosphate, phenylethylhydrogenphosphate, phenylbis (3,5,5-trimethylhexyl) phosphate, ethyldiphenylphosphate, 2-
  • Ethylhexyl di (tolyl) phosphate diphenyl hydrogen phosphate, bis (2-ethylhexyl) p-tolyl phosphate, tritolyl phosphate, bis (2-ethylhexyl) phenyl phosphate, di (nonyl) phenyl phosphate, phenylmethyl hydrogen phosphate, di (dodecyl) p-tolyl phosphate , p-tolyl-bis (2,5,5-trimethylhexyl) phosphate or 2-ethylhexyldiphenyl phosphate.
  • Particularly suitable are phosphorus compounds in which each radical is an aryloxy radical.
  • R 4 -R 7 is an aromatic radical having 6 to 20 C atoms, preferably a phenyl radical, which with
  • Alkyl groups having 1 to 4 carbon atoms, preferably methyl, may be substituted
  • R 8 is a divalent phenol radical, preferred and n an average value between 0.1 to 100, preferably 0.5 to 50, in particular 0.8 to 10 and very particularly 1 to 5.
  • cyclic phosphates can also be used. Particularly suitable here is diphenylpentaerythritol diphosphate and phenylneopentyl phosphate.
  • oligomeric and polymeric phosphorus compounds are also suitable.
  • Such polymeric, halogen-free organic phosphorus compounds containing phosphorus in the polymer chain are formed, for example, in the preparation of pentacyclic, unsaturated phosphine dihalides, as described, for example, in DE-A 20 36 173.
  • the molecular weight measured by vapor pressure osmometry in dimethylformamide, the Polyphospholino- xide should be in the range of 500 to 7000, preferably in the range of 700 to 2000.
  • the phosphorus here has the oxidation state -1.
  • inorganic coordination polymers of aryl (alkyl) phosphinic acids such as e.g. Poly-ß-sodium (l) -methylphenylphosphinat be used. Their preparation is given in DE-A 31 40 520. The phosphorus has the oxidation number +1.
  • halogen-free polymeric phosphorus compounds by the reaction of a phosphonic acid chloride, such as phenyl, methyl, propyl, styryl and vinylphosphonyl acid dichloride with bifunctional phenols, such as hydroquinone, resorcinol, 2,3,5-trimethylhydroquinone, bisphenol-A, tetramethylbiphenol-A arise.
  • a phosphonic acid chloride such as phenyl, methyl, propyl, styryl and vinylphosphonyl acid dichloride
  • bifunctional phenols such as hydroquinone, resorcinol, 2,3,5-trimethylhydroquinone, bisphenol-A, tetramethylbiphenol-A arise.
  • halogen-free polymeric phosphorus compounds which may be present in the molding compositions according to the invention are obtained by reaction of phosphorus oxychloride or
  • Preferred components B) are phosphinic acid salts of the formula
  • R 1 , R 2 are identical or different, hydrogen, Ci-Cö-alkyl, linear or branched and / or
  • R 3 Ci-Cio-alkylene, linear or branched, C ß -Cio-arylene, alkylarylene or arylalkylene;
  • M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and / or a protonated nitrogen base;
  • n 1 to 4; x is 1 to 4.
  • R 1 , R 2 of component B are the same or different and are methyl, ethyl, n-propyl, iso-propyl, n-butyl, tert-butyl, n-pentyl and / or phenyl.
  • R 3 of component B is methylene, ethylene, n-propylene, iso-propylene, n-butylene, tert-butylene, n-pentylene, n-octylene or n-dodecylene, phenylene or naphthylene; Methylphenylene, ethylphenylene, tert-butylphenylene, methylnaphthylene, ethylnaphthylene or tert-butylnaphthylene; Phenyl-methylene, phenyl-ethylene, phenyl-propylene or phenyl-butylene.
  • melamine polyphosphate salts of a 1,3,5-triazine compound whose number n of the average degree of condensation is between 20 and 200 and the 1,3,5-triazine content of 1, 1 to 2.0 mol of a 1, 3,5-triazine compound, selected from the group consisting of melamine, melam, meiern, melon, ammeiin, ammelide, 2-ureidomelamine, acetoguanamine, benzoguanamine and diaminophenyltriazine, per mole of phosphorus atom.
  • the n value of such salts is generally between 40 and 150, and the ratio of a 1,3,5-triazine compound per mole of phosphorus atom is preferably between 1.2 and 1.8.
  • the pH of a 10% by weight aqueous slurry of salts prepared according to EP1095030B1 will generally be more than 4.5 and preferably at least 5.0.
  • the pH is usually determined by adding 25 g of the salt and 225 g of clean water of 25 ° C to a 300 ml beaker, stirring the resulting aqueous slurry for 30 minutes and then measuring the pH.
  • the o.g. n value, the number-average degree of condensation can be determined by 31 P solid NMR. From J.R.
  • EP1095030B1 is also a process for the preparation of the desired polyphosphate salt of a 1, 3,5-triazine compound having an n value of 20 to 200 and their 1, 3,5-triazine content 1, 1 to 2.0 mol of a 1, 3,5-triazine compound is described.
  • This process involves the conversion of a 1,3,5-triazine compound with orthophosphoric acid into its orthophosphate salt, followed by dehydration and heat treatment to convert the orthophosphate salt to a polyphosphate of the 1,3,5-triazine compound.
  • This heat treatment is preferably carried out at a temperature of at least 300 ° C, and preferably at least 310 ° C.
  • other 1,3,5-triazine phosphates may also be used, including, for example, a mixture of orthophosphates and pyrophosphates.
  • Preferred compounds B) are those in which R 1 to R 20 independently of one another are hydrogen and / or a methyl radical.
  • R 1 to R 20 independently of one another are methyl
  • those compounds are preferred in which the radicals R 1 , R 5 , R 6 , R 10 , R 11 , R 15 , R 16 , R 20 in ortho Position to the oxygen of the phosphate group represent at least one methyl radical.
  • substituents are SO 2 and S, and most preferably C (CH 3 ) 2 for X in the above formula.
  • n is preferably 0.5 to 5, in particular 0.7 to 2 and in particular * 1 as an average value.
  • n as an average value results from the preparation of the compounds listed above, so that the degree of oligomerization is usually less than 10 and small amounts (usually ⁇ 5 wt .-%) of triphenyl phosphate are included, this being different from batch to batch.
  • Compounds B) are commercially available as CR-741 from Daihachi.
  • Particularly preferred component B) is elemental phosphorus (valence state 0). In question come red and black phosphorus, with red phosphorus is preferred. Preferred flame retardant (B) is elemental red phosphorus, which can be used in untreated form.
  • preparations in which the phosphorus is superficially mixed with low molecular weight liquid substances such as silicone oil, paraffin oil or esters of phthalic acid or adipic acid or with polymeric or oligomeric compounds, e.g. coated with phenolic resins or aminoplasts.
  • a so-called superficial phlegmatization based on polyester polyurethanes or polyurethanes can be found, for example, in DE-A 39 05 038.
  • phlegmatizers are mineral oils, paraffin oils, chloroparaffins, esters of trimellitic acid, preferably of alcohols having 5 to 10 carbon atoms, such as trioctyltri mel itate and aromatic phosphate compounds such as tricresyl phosphate.
  • esters of phthalic acid are used as phlegmatizers, which are obtainable from phthalic acid and alcohols having 6 to 13 carbon atoms.
  • Particularly preferred are dioctyl phthalates, with di-2-ethyl-hexyl phthalate being particularly preferred.
  • Particularly preferred are coatings which comprise a combination of 0.01 to 2, preferably 0.1 to 1, 5 and in particular 0.4 to 1, 0 wt .-% of a phlegmatizer and 2 to 15, preferably 3 to 10 and in particular 4 to 8 wt .-% of a mineral filler. The percentages by weight of the mineral filler and the phlegmatizer and the red phosphorus each give 100 wt .-%.
  • the average particle size (dso) of the phosphor particles distributed in the molding compositions is usually in the range up to 2 mm, preferably from 0.0001 to 0.5 mm.
  • mineral fillers are preferably calcium or magnesium silicates suitable, with wollastonite and talc are preferred.
  • the average particle size (dso) is usually from 1 to 500 ⁇ .
  • compositions and methods of preparation of component B) can be found in DE-A 1 96 48 503.
  • the molding compositions of the invention contain 0.5 to 35, preferably 1 to 20 and in particular 1 to 10 wt.% Of an iron sulfide.
  • FeS 2 Preferred iron sulfide is FeS 2, which is the Fe (II) salt of the S2 2 " ion.
  • this is formed from FeS and sulfur compounds in organic matter or sulfate with the help of microorganisms.
  • FeS2 is available by reacting FeC with H2S at red-hot or by heating Fe (II) sulfide with elemental sulfur.
  • FeS2 is available as a black powder, which preferably has an S content (elemental sulfur) of greater than 35%, in particular 45%.
  • the sulfur content is determined as follows:
  • the sample is weighed into a tin capsule and burnt in helium stream at about 1000 ° C with added oxygen.
  • the resulting combustion gases are converted into defined species with the aid of appropriate catalysts and detected by WLD.
  • Sulfur quantification as SO2 by means of thermal conductivity detection (WLD).
  • the preferred particle size is dgo ⁇ 1000 ⁇ , especially dgo ⁇ 100 ⁇ , the dso is preferably ⁇ 50 ⁇ (determined according to ISO 13320-1).
  • the molding compositions of the invention may contain up to 70, preferably up to 50 wt .-% of other additives.
  • Fibrous or particulate fillers D which may be mentioned are carbon fibers, glass fibers, glass spheres, amorphous silica, calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, chalk, powdered quartz, mica, barium sulfate and feldspar, in amounts of from 1 to 30% by weight, in particular 5 to 30, preferably 10 to 30 wt .-% are used.
  • Preferred fibrous fillers are carbon fibers, aramid fibers and potassium titanate fibers, glass fibers being particularly preferred as E glass. These can be used as rovings or cut glass in the commercial forms.
  • the fibrous fillers can be surface-pretreated for better compatibility with the thermoplastic with a silane compound.
  • Suitable silane compounds are those of the general formula (X- (CH 2 ) n) k -Si (O-C m H 2 m + 1) 4-k in which the substituents have the following meanings:
  • n is an integer from 2 to 10, preferably 3 to 4
  • n is an integer from 1 to 5, preferably 1 to 2
  • k is an integer from 1 to 3, preferably 1
  • Preferred silane compounds are aminopropyltrimethoxysilane, aminobutyltrimethoxysilane, aminopropyltriethoxysilane, aminobutyltriethoxysilane and the corresponding silanes which contain a glycidyl group as substituent X.
  • the silane compounds are generally used in amounts of 0.01 to 2, preferably 0.025 to 1, 0 and in particular 0.05 to 0.5 wt .-% (based on E)) for surface coating.
  • acicular mineral fillers are also suitable.
  • the term "needle-shaped mineral fillers” is understood to mean a mineral filler with a pronounced, needle-like character.
  • An example is acicular wollastonite.
  • the mineral has an L / D (length: diameter ratio of 8: 1 to 35: 1, preferably 8: 1 to 1: 1: 1)
  • the mineral filler may optionally be pretreated with the silane compounds mentioned above, the pretreatment however, is not essential.
  • fillers are kaolin, caicinated kaolin, wollastonite, talc and chalk called and additionally platelet or needle-shaped nanofillers preferably in amounts between 0.1 and 10%.
  • Boehmite, bentonite, montmorillonite, vermicullite, hectorite and laponite are preferably used for this purpose.
  • the platelet-shaped nanofillers according to the prior art are organically modified.
  • the addition of the platelet or needle-shaped nano fillers to nanocomposites according to the invention leads to a further increase in mechanical strength.
  • the molding compositions of the invention may contain 0.05 to 3, preferably 0.1 to 1, 5 and in particular 0.1 to 1 wt .-% of a lubricant.
  • Al alkali metal, alkaline earth metal salts or esters or amides of fatty acids having 10 to 44 carbon atoms, preferably having 12 to 44 carbon atoms.
  • the metal ions are preferably alkaline earth and Al, with Ca or Mg being particularly preferred.
  • Preferred metal salts are Ca-stearate and Ca-montanate as well as Al-stearate. It is also possible to use mixtures of different salts, the mixing ratio being arbitrary.
  • the carboxylic acids can be 1- or 2-valent. Examples which may be mentioned are pelargonic acid, palmitic acid, lauric acid, margaric acid, dodecanedioic acid, behenic acid and particularly preferably stearic acid, capric acid and montanic acid (mixture of fatty acids having 30 to 40 carbon atoms).
  • the aliphatic alcohols can be 1 - to 4-valent.
  • examples of alcohols are n-butanol, n-octanol, stearyl alcohol, ethylene glycol, propylene glycol, neopentyl glycol, pentaerythritol, with glycerol and pentaerythritol being preferred.
  • the aliphatic amines can be 1 - to 3-valent. Examples of these are stearylamine, ethylenediamine, propylenediamine, hexamethylenediamine, di (6-aminohexyl) amine, with ethylenediamine and hexamethylenediamine being particularly preferred.
  • Preferred esters or amides are correspondingly glycerol distearate, glycerol tristearate, ethylenediamine distearate, glycerol monopalmitate, glycerol trilaurate, glycerol monobehenate and pentaerythritol tetrastearate.
  • the molding compositions of the invention 0.05 to 3, preferably 0.1 to 1, 5 and in particular 0.1 to 1 wt .-% of a Cu stabilizer, preferably a Cu (l) halide, in particular in admixture with an alkali halide, preferably KJ, in particular in the ratio 1: 4, or of a sterically hindered phenol or mixtures thereof.
  • Suitable salts of monovalent copper are preferably copper (I) acetate, copper (I) chloride, bromide and iodide. These are contained in amounts of 5 to 500 ppm of copper, preferably 10 to 250 ppm, based on polyamide. The advantageous properties are obtained in particular when the copper is present in molecular distribution in the polyamide.
  • a typical concentrate consists for example of 79 to 95 wt .-% polyamide and 21 to 5 wt .-% of a mixture of copper iodide or bromide and potassium iodide.
  • concentration of the solid homogeneous solution of copper is preferably between 0.3 and 3, in particular between 0.5 and 2 wt .-%, based on the total weight of the solution and the molar ratio of copper (I) iodide to potassium iodide is between 1 and 1 1, 5, preferably between 1 and 5.
  • Suitable polyamides for the concentrate are homopolyamides and copolyamides, in particular polyamide 6 and polyamide 6.6.
  • R 1 and R 2 are an alkyl group, a substituted alkyl group or a substituted triazole group, wherein the radicals R 1 and R 2 may be identical or different and R 3 is an alkyl group, a substituted alkyl group, an alkoxy group or a substituted amino group.
  • Another group of preferred sterically hindered phenols are derived from substituted benzenecarboxylic acids, especially substituted benzenepropionic acids.
  • Particularly preferred compounds of this class are compounds of the formula oo r7
  • R 4 , R 5 , R 7 and R 8 independently represent d-Ce-alkyl groups, which in turn may be substituted (at least one of which is a sterically demanding group) and R 6 is a bivalent aliphatic radical having 1 to 10 carbon atoms means that may also have CO bonds in the main chain.
  • a total of sterically hindered phenols may be mentioned: 2,2'-methylenebis (4-methyl-6-tert-butylphenol), 1,6-hexanediol bis [3- (3,5-di-tert. -butyl-4-hydroxyphenyl) -propionate], pentaerythrityl-tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) -propionate], distearyl-3,5-di-tert.
  • the antioxidants D which can be used individually or as mixtures, are in an amount of 0.05 to 3 wt .-%, preferably from 0.1 to 1, 5 wt .-%, in particular 0.1 to 1 Wt .-%, based on the total weight of the molding compositions A) to D).
  • sterically hindered phenols having no more than one sterically hindered group ortho to the phenolic hydroxy group have been found to be particularly advantageous; especially when assessing color stability when stored in diffused light for extended periods of time.
  • the molding compositions according to the invention may contain 0.05 to 5, preferably 0.1 to 2 and in particular 0.25 to 1 wt .-% of a nigrosine.
  • Nigrosines are generally understood as meaning a group of black or gray induline-related phenazine dyes (azine dyes) in various forms (water-soluble, fat-soluble, gas-soluble) which are useful in wool dyeing and printing, in the art
  • Black dyeing of silks for dyeing leather, shoe creams, varnishes, plastics, baked enamels, inks and the like, and find use as microscopy dyes.
  • Component D) can be used as free base or else as salt (for example hydrochloride). Further details on nigrosines can be found, for example, in the electronic lexicon Rompp Online, Version 2.8, Thieme-Verlag Stuttgart, 2006, keyword "nigrosine".
  • customary additives D are, for example, in amounts of up to 25, preferably up to 20 wt .-% rubber-elastic polymers (often also referred to as impact modifiers, elastomers or rubbers).
  • these are copolymers which are preferably composed of at least two of the following monomers: ethylene, propylene, butadiene, isobutene, isoprene, chloroprene, vinyl acetate, styrene, acrylonitrile and acrylic or methacrylic acid esters having 1 to 18 carbon atoms in the alcohol component.
  • Such polymers are described, for example, in Houben-Weyl, Methods of Organic Chemistry, Vol. 14/1 (Georg Thieme Verlag, Stuttgart, 1961). Pages 392 to 406 and in the monograph by CB Bucknall, "Toughened Plastics" (Applied Science Publishers, London, 1977). In the following some preferred types of such elastomers are presented.
  • EPM ethylene-propylene
  • EPDM ethylene-propylene-diene
  • diene monomers for EPDM rubbers for example, conjugated dienes such as isoprene and butadiene, non-conjugated dienes having 5 to 25 carbon atoms such as penta-1, 4-diene, hexa-1, 4-diene, hexa-1, 5 -diene, 2,5-dimethylhexa-1,5-diene and octa-1,4-diene, cyclic dienes such as cyclopentadiene, cyclohexadienes, cyclooctadienes and dicyclopentadienes and alkenylnorbornenes such as 5-ethylidene-2-norbornene, Butylidene-2-norbornene, 2-methallyl-5-norbornene, 2-isopropenyl-5-norbornene and tricyclodienes such as 3-methyl-tricyclo (5.2.1.0.2.6) -3,8-decadiene or mixtures thereof.
  • the diene content of the EPDM rubbers is preferably 0.5 to 50, in particular 1 to 8 wt .-%, based on the total weight of the rubber.
  • EPM or EPDM rubbers may preferably also be grafted with reactive carboxylic acids or their derivatives.
  • reactive carboxylic acids or their derivatives e.g. Acrylic acid, methacrylic acid and its derivatives, e.g. Glycidyl (meth) acrylate, and called maleic anhydride.
  • Another group of preferred rubbers are copolymers of ethylene with acrylic acid and / or methacrylic acid and / or the esters of these acids.
  • the rubbers may still contain dicarboxylic acids such as maleic acid and fumaric acid or derivatives of these acids, e.g. Esters and anhydrides, and / or monomers containing epoxy groups.
  • dicarboxylic acid derivatives or monomers containing epoxy groups are preferably incorporated into the rubber by addition of monomers containing dicarboxylic acid or epoxy groups of the general formulas I or II or III or IV to the monomer mixture
  • R 1 to R 9 are hydrogen or alkyl groups having 1 to 6 carbon atoms and m is an integer from 0 to 20, g is an integer from 0 to 10 and p is an integer from 0 to 5.
  • the radicals R 1 to R 9 preferably denote hydrogen, where m is 0 or 1 and g is 1.
  • the corresponding compounds are maleic acid, fumaric acid, maleic anhydride, allyl glycidyl ether and vinyl glycidyl ether.
  • Preferred compounds of formulas I, II and IV are maleic acid, maleic anhydride and epoxy group-containing esters of acrylic acid and / or methacrylic acid, such as glycidyl acrylate, glycidyl methacrylate and the esters with tertiary alcohols, such as t-butyl acrylate. Although the latter have no free carboxyl groups, their behavior is close to the free acids and are therefore termed monomers with latent carboxyl groups.
  • the copolymers consist of 50 to 98 wt .-% of ethylene, 0.1 to
  • esters of acrylic and / or methacrylic acid are the methyl, ethyl, propyl and i- or t-butyl esters.
  • vinyl esters and vinyl ethers can also be used as comonomers.
  • the ethylene copolymers described above can be prepared by methods known per se, preferably by random copolymerization under high pressure and elevated temperature. Corresponding methods are generally known.
  • Preferred elastomers are also emulsion polymers whose preparation is described, for example, in Blackley in the monograph "Emulsion Polymerization". The usable emulsifiers and catalysts are known per se.
  • homogeneously constructed elastomers or else those with a shell structure can be used.
  • the shell-like structure is determined by the order of addition of the individual monomers; the morphology of the polymers is also influenced by this order of addition.
  • acrylates such as e.g. N-butyl acrylate and 2-ethylhexyl acrylate, corresponding methacrylates, butadiene and isoprene and their mixtures called.
  • These monomers may be reacted with other monomers such as e.g. Styrene, acrylonitrile, vinyl ethers and other acrylates or methacrylates such as methyl methacrylate, methyl acrylate, ethyl acrylate and propyl acrylate are copolymerized.
  • the soft or rubber phase (with a glass transition temperature below 0 ° C) of the elastomers may be the core, the outer shell or a middle shell (at
  • Elastomers may also consist of several shells of a rubber phase. If, in addition to the rubber phase, one or more hard components (having glass transition temperatures of more than 20 ° C.) are involved in the construction of the elastomer, these are generally prepared by polymerization of styrene, acrylonitrile, methacrylonitrile, ⁇ -methylstyrene, p-methylstyrene, acrylic esters and methacrylates such as methyl acrylate, ethyl acrylate and methyl methacrylate produced as main monomers. In addition, smaller amounts of other comonomers can also be used here.
  • emulsion polymers which have reactive groups on the surface.
  • groups are e.g. Epoxy, carbo xyl, latent carboxyl, amino or amide groups and functional groups, which by Mit- use of monomers of the general formula
  • R 10 is hydrogen or a C 1 to C 4 alkyl group
  • R 11 is hydrogen, a C 1 to C 6 alkyl group or an aryl group, in particular phenyl,
  • R 12 is hydrogen, a C 1 to C 10 alkyl, C 1 to C 12 aryl group or -OR 13
  • R 13 is a C 1 to C 12 alkyl or C 2 to C 12 aryl group which may optionally be substituted by O or N-containing groups,
  • X is a chemical bond, a C 1 -C 10 -alkylene or C 6 -C 12 -arylene group or
  • Z is a C 1 -C 10 -alkylene or C 2 -C 12 -arylene group.
  • the graft monomers described in EP-A 208 187 are also suitable for introducing reactive groups on the surface.
  • acrylamide methacrylamide and substituted esters of acrylic acid or methacrylic acid, such as (Nt-butylamino) -ethyl methacrylate, (N, N-dimethylamino) ethyl acrylate, (N, N-dimethylamino) -methyl acrylate and (N, N-diethylamino) ethyl acrylate.
  • the particles of the rubber phase can also be crosslinked.
  • monomers acting as crosslinkers are buta-1,3-diene, divinylbenzene, diallyl phthalate and dihydrodicyclopentadienyl acrylate, and also the compounds described in EP-A 50 265.
  • graft-linking monomers ie monomers having two or more polymerizable double bonds which react at different rates during the polymerization.
  • the different polymerization rates bring a certain proportion of unsaturated double bonds in the rubber with it. If a further phase is subsequently grafted onto such a rubber, the double bonds present in the rubber react at least partially with the graft monomers to form chemical bonds, ie, the grafted phase is at least partially linked via chemical bonds with the graft base.
  • graft-crosslinking monomers examples include allyl-containing monomers, in particular allyl esters of ethylenically unsaturated carboxylic acids such as allyl acrylate, allyl methacrylate, diallyl maleate, diallyl fumarate, diallyl itaconate or the corresponding monoallyl compounds of these dicarboxylic acids.
  • allyl-containing monomers in particular allyl esters of ethylenically unsaturated carboxylic acids such as allyl acrylate, allyl methacrylate, diallyl maleate, diallyl fumarate, diallyl itaconate or the corresponding monoallyl compounds of these dicarboxylic acids.
  • allyl-containing monomers in particular allyl esters of ethylenically unsaturated carboxylic acids such as allyl acrylate, allyl methacrylate, diallyl maleate, diallyl fumarate, diallyl itaconate or the corresponding monoally
  • the proportion of these crosslinking monomers in the impact-modifying polymer is up to 5% by weight, preferably not more than 3% by weight, based on the impact-modifying polymer.
  • graft polymers having a core and at least one outer shell, which have the following structure:
  • graft polymers having a multi-shell structure it is also possible to use homogeneous, ie single-shell, elastomers of buta-1,3-diene, isoprene and n-butyl acrylate or their copolymers. These products can also be prepared by concomitant use of crosslinking monomers or monomers having reactive groups.
  • emulsion polymers examples include n-butyl acrylate / (meth) acrylic acid copolymers, n-butyl acrylate / glycidyl acrylate or n-butyl acrylate / glycidyl methacrylate copolymers, graft polymers having an inner core of n-butyl acrylate or on butadiene base and an outer shell of the aforementioned copolymers and copolymers of ethylene with comonomers providing reactive groups.
  • the described elastomers may also be prepared by other conventional methods, e.g. by suspension polymerization.
  • Silicone rubbers as described in DE-A 37 25 576, EP-A 235 690, DE-A 38 00 603 and EP-A 319 290, are likewise preferred. Of course, mixtures of the rubber types listed above can be used.
  • thermoplastic molding compositions according to the invention may contain conventional processing aids such as stabilizers, antioxidants, agents against thermal decomposition and decomposition by ultraviolet light, lubricants and mold release agents, colorants such as dyes and pigments, nucleating agents, plasticizers, etc.
  • processing aids such as stabilizers, antioxidants, agents against thermal decomposition and decomposition by ultraviolet light, lubricants and mold release agents, colorants such as dyes and pigments, nucleating agents, plasticizers, etc.
  • antioxidants and heat stabilizers are sterically hindered phenols and / or phosphites and amines (eg TAD), hydroquinones, aromatic secondary amines such as diphenylamines, various substituted representatives of these groups and mixtures thereof in concentrations up to 1 wt .-%, based on the Called weight of the thermoplastic molding compositions.
  • TAD sterically hindered phenols and / or phosphites and amines
  • hydroquinones such as diphenylamines
  • aromatic secondary amines such as diphenylamines
  • UV stabilizers which are generally used in amounts of up to 2 wt .-%, based on the molding composition, various substituted resorcinols, salicylates, Benzotriazo- le and benzophenones may be mentioned.
  • inorganic pigments such as titanium dioxide, ultramarine blue, iron oxide and carbon black, furthermore organic pigments such as phthalocyanines, quinacridones, perylenes and also dyes such as anthraquinones as colorants.
  • sodium phenylphosphinate, alumina, silica and preferably talc may be used as nucleating agents.
  • PTFE zinc salts (zinc borate, Zn oxide), silica salts (silicon dioxides), for example, can be used as flame retardant synergists.
  • thermoplastic molding compositions according to the invention can be prepared by processes known per se, in which the starting components are mixed in conventional mixing devices, such as screw extruders, Brabender mills or Banbury mills, and then extruded. After extrusion, the extrudate can be cooled and comminuted. Individual components can also be premixed and then the rest of the output Substances are added individually and / or also mixed.
  • the mixing temperatures are usually 230 to 320.
  • the components B) to C) and, if appropriate, D) can be mixed with a prepolymer, formulated and granulated.
  • the resulting granules are then condensed in solid phase under inert gas continuously or discontinuously at a temperature below the melting point of component A) to the desired viscosity.
  • the preparation by means of so-called. Pultrusion Kunststoff.
  • thermoplastic molding compositions of the invention are characterized by a good flame retardancy and good mechanics. In addition, lower levels of flame retardant are required to achieve fire class V-0. In addition, the LOI value and P stability are improved.
  • Cylinder head covers are suitable for the production of fibers, films and moldings of any kind.
  • such polyamides can be used to produce plugs, plug parts, plug connectors, wiring harness components, circuit carriers, circuit carrier components, three-dimensionally injection-molded circuit carriers, electrical connection elements, mechatronic components.
  • dashboards Inside the car, there is a use for dashboards, steering column switches, seat parts, headrests, center consoles, transmission components and door modules, in the car exterior for door handles, exterior mirror components, windscreen wiper components, windscreen wiper housings, grilles, roof rails, sunroof frames, engine covers, cylinder head covers, intake manifolds (In particular intake manifold), windscreen wipers and body exterior parts possible.
  • Component A Component A
  • Melamine polyphosphate (Melapur ® 200 from BASF SE)
  • Antioxidants Irganox® 1098 from BASF SE and ZnO (1: 2)
  • Lubricants Ca-Stearate, Zn-Stearate, Stearyl Stearate (5: 0.5: 1)
  • the molding compositions were prepared on a ZSK 25 at a throughput of 10 kg / h and about 290 ° C flat temperature profile.
  • LOI limiting oxygen index

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Abstract

L'invention concerne des matières moulables thermoplastiques contenant : A) 10 à 98 % en poids d'un polymère thermoplastique, B) 0,5 à 40 % en poids d'un composé ignifuge contenant du phosphore, C) 0,5 à 35 % en poids de sulfure de fer, D) 0 à 70 % en poids d'autres additifs, la somme des pourcents en poids des composants A) à D) étant égale à 100 %.
PCT/EP2011/062512 2010-07-30 2011-07-21 Matières moulables ignifugées WO2012013564A1 (fr)

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