WO2000053670A1 - Styrolcopolymerisate mit verbesserter chemikalienbeständigkeit - Google Patents
Styrolcopolymerisate mit verbesserter chemikalienbeständigkeit Download PDFInfo
- Publication number
- WO2000053670A1 WO2000053670A1 PCT/EP2000/002110 EP0002110W WO0053670A1 WO 2000053670 A1 WO2000053670 A1 WO 2000053670A1 EP 0002110 W EP0002110 W EP 0002110W WO 0053670 A1 WO0053670 A1 WO 0053670A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- components
- component
- acrylonitrile
- styrene
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/12—Copolymers of styrene with unsaturated nitriles
-
- 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
-
- 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
Definitions
- the invention relates to styrene copolymers with improved chemical resistance.
- Styrene copolymers are characterized by very good properties and can therefore be used in a variety of ways. However, an improvement in their property profile is desirable for various applications. Such an improvement can be achieved by adding further components to a styrene copolymer mixture.
- thermoplastic molding compositions are known from EP-A 0 590 390, which have an improved color even after processing into the finished molded part.
- Such an improvement in the raw tone of the thermoplastic molding compositions is achieved by adding zeolites or layered silicates of the kaolin, serpentine and bentonite type.
- the object of the present invention is to further improve the chemical resistance of styrene copolymers, in particular of styrene copolymers with low acrylonitrile contents. This task is accomplished through the use of layered silicates
- the range of uses of these polymers can be expanded by improving the chemical resistance, low swelling and improved stress crack resistance of the styrene copolymers.
- layered silicates in styrene copolymers in particular the chemical resistance to chemicals, selected from alcohols such as methanol, ethanol, isopropanol, C 3 - to C 8 alkanes, gasoline, super gasoline, diesel, halogenated hydrocarbons, salts of hypochlorite and sodium dichloroisocyanate. Improved dihydrate.
- Suitable sheet silicates are listed, for example, in Hollemann, Wiberg, Textbook of Inorganic Chemistry, Walter de Gruyter, Berlin, New York 1985, pages 771 to 776.
- Layered silicates selected from kaolinite, serpentine types, pyrophyllite, mica-like silicates and mica are preferably used, with mica being very particularly preferred.
- Styrene copolymers are copolymers which are composed of styrene or styrene derivatives and comonomers and, if appropriate, further components.
- layered silicates in styrene copolymers which (including the layered silicate) are composed of components A.C and optionally B, D and E with:
- a 20 to 100 wt .-%, based on the sum of components A + B, a flart component from one or more copolymers of styrene and / or methylstyrene with acrylonitrile, the proportion of acrylonitrile being 10 to 50 wt .-% , as component A, b: 0 to 80% by weight. based on the sum of components A + B, at least one graft copolymer B.
- component E Components, other common auxiliaries and fillers as component E.
- Suitable styrene copolymers with components A, B, D and E for finishing with layered silicates to increase chemical resistance are described, for example, in DE-A 29 01 576 and DE-A 38 21 481.
- the proportion of component A in the styrene copolymers, based on the sum of components A + B, is preferably 40 to 90% by weight, particularly preferably 55 to 80% by weight.
- the proportion of component B, based on the sum of components A + B, is preferably 15 to 60% by weight, particularly preferably 20 to 45% by weight, the sum of components A + B preferably 10 to 80% by weight. Parts. particularly preferably 12 to 70 parts by weight, based on the total mass of the components used.
- the proportion of component C is, based on the total mass of the components used, preferably
- the proportion of component D is preferably 20 to 90 parts by weight, particularly preferably 33 to 90 parts by weight, very particularly preferably 60 to 90 parts by weight.
- the proportion of component E, based on the total mass of the components used, is preferably 0 to 15 parts by weight, particularly preferably 0 to 12 parts by weight.
- the component of acrylonitrile in component A is preferably less than 28% by weight, particularly preferably 18 to 27% by weight.
- the proportion of component B1 in component B is preferably 20 to 80% by weight, particularly preferably 25 to 75% by weight.
- the proportion of component B2 is preferably 20 to 80% by weight, particularly preferably 25 to 75% by weight.
- the proportion of acrylonitrile in component B2 is preferably less than 28% by weight. particularly preferably 18 to 27% by weight.
- Layered silicates suitable as component C are preferably selected from kaolinite, serpentine, pyrophyllite. mica-like silicates and mica, with mica being particularly preferred.
- kaolinite types should also be understood to mean kaolin and mica-like silicates also bentonite.
- Component A preferably has a viscosity number VZ (determined according to DIN 53726 at 25 ° C., 0.5% by weight in dimethylformamide) of 50 to 120 ml / g, particularly preferably 52 to 110 ml / g and in particular 55 to 100 ml / g on. It is particularly preferably a stolen / acrylonitrile copolymer.
- VZ viscosity number
- Such copolymers are obtained in a known manner by bulk, solution, suspension, precipitation or emulsion polymerization, with bulk and Solution polymerization are preferred. Details of these processes can be found, for example, in the plastics handbook, edited by R. Vieweg and G Daurniller,
- Component B is a graft copolymer with a rubber-elastic particulate graft base with a glass transition temperature below 0 ° C.
- the graft base can be selected from all known suitable rubber-elastic polymers. They are preferably ABS (acrylonitrile butadiene / styrene), ASA (acrylonitrile / styrene / alkyl acrylate) rubbers, in which instead of styrene a styrene derivative and another diene can be used instead of butadiene, or EPDM, siloxane or other rubbers.
- Component B1 is preferably at least one (co) polymer
- bll 60 to 100 wt .-%, preferably 70 to 100 wt .-% of at least one conjugated diene, a Ci.jo-alkyl acrylate or mixtures thereof as component B1, bl2: 0 to 30 wt .-%, preferably 0 to 25 %
- component B1 a Ci.jo-alkyl acrylate or mixtures thereof
- Component B1 different monoethylenically unsaturated monomers as component B12 and bl3: 0 to 10% by weight, preferably 0 to 6% by weight, of at least one crosslinking monomer as component B 13.
- Conjugated dienes in particular butadiene, isoprene, chloroprene or mixtures thereof, as well as the Ci-io-alkyl acrylates listed below, preferably C 1, come as component B1. 8 alkyl acrylates, and mixtures thereof. Butadiene or isoprene or mixtures thereof, especially butadiene, or n-butyl acrylate are preferably used.
- component B12 may contain monomers which vary the mechanical and thermal properties of the core within a certain range.
- Examples of such monoethylenically unsaturated comonomers are styrene, substituted styrenes, acrylonitrile, methacrylonitrile, acrylic acid, methacrylic acid, dicarboxylic acids such as maleic acid and fumaric acid, and their anhydrides such as maleic anhydride monomers such as dimethylaminoethylacrylate, vinylethylamylazolamolate, vinyl pyridyl acrylate, vinyl pyridyl acrylate, vinyl pyrid Vinylaniline, acrylamide, C MO - alkyl esters of acrylic acid such as methyl acrylate, ethyl acrylate, n-propyl acrylate, i-propyl acrylate, n-butyl acrylate, isobutyl acrylate, sec-butyl acrylate, tert-butyl acrylate, ethyl hexyl acrylate, the corresponding
- Styrene, ⁇ -methylstyrene, n-butyl acrylate, methyl methacrylate, acrylonitrile or mixtures thereof are preferably used as component B12, in particular styrene and n-butyl acrylate or mixtures thereof, especially styrene.
- component B12 in particular styrene and n-butyl acrylate or mixtures thereof, especially styrene.
- the proportion of component B1 is preferably 70 to 99.9% by weight. particularly preferably 90 to 99% by weight and the proportion of component B12 0.1 to 30% by weight, particularly preferably 1 to 10% by weight.
- Butadiene-styrene and n-butyl acrylate / styrene copolymers in the specified amount range are particularly preferred.
- crosslinking monomers of component B13 are divinyl compounds such as divinylbenzene.
- Diallyl compounds such as diallyl maleate, allyl esters of acrylic and methacrylic acid.
- Divinyl esters of dicarboxylic acids such as succinic acid and adipic acid, diallyl and divinyl ethers of bifunctional alcohols such as ethylene glycol and butane-1,4-diol.
- a graft B2 is preferably styrene, ⁇ -methyl styrene, and also with C ⁇ - C 8 alkyl ring-alkylated styrenes. Styrene is particularly preferred. Mixtures of the styrenes mentioned can also be used.
- B2 can also contain one or more further, monoethylenically unsaturated
- Comonomers included. Preferred comonomers are acrylonitrile,
- Methyl methacrylate glycidyl acrylate and methacrylate, acrylamide and methacrylamide.
- Preferred grafting pads B2 are, for example, polystyrene and copolymers of styrene and / or ⁇ -methylstyrene with acrylonitrile and / or methyl methacrylate.
- the proportion of styrene and / or 2-methylstyrene, or their sum, is particularly preferably at least 50% by weight, very particularly preferably at least 60% by weight.
- graft rubbers such as those used in DE-A-4 011 163. These graft rubbers are known to the person skilled in the art as so-called acid-base rubbers.
- the graft copolymers B are usually prepared by the emulsion polymerization process. Polymerization is generally carried out at a temperature of 20 to 100 ° C., preferably 30 to 80 ° C. Common emulsifiers are often used, for example alkali metal salts of alkyl or alkylarylsulfonic acids, alkyl sulfates, fatty alcohol sulfonates. Salts of higher fatty acids with 10 to 30 carbon atoms, sulfosuccinates, ether sulfonates or resin soaps. The alkali metal salts, in particular the sodium or potassium salts of alkyl sulfonates or fatty acids having 10 to 18 carbon atoms, are preferably used.
- the emulsifiers are used in amounts of 0.5 to 5% by weight, in particular 0.5 to 3% by weight, based on the monomers used in the preparation of the graft base.
- Sufficient water is preferably used to prepare the dispersion so that the finished dispersion has a solids content of 20 to 50% by weight.
- a water / monomer ratio of 2: 1 to 0.7: 1 is used.
- radical formers which decompose at the selected reaction temperature are suitable for starting the polymerization reaction, that is to say both those which decompose thermally on their own and those which do so in the presence of a redox system.
- Free radical formers for example peroxides such as preferably peroxosulfates (for example sodium or potassium peroxodisulfate) and azo compounds such as azodiisobutyronitrile are preferably suitable as polymerization initiators.
- redox systems in particular those based on hydroperoxides such as cumene hydroperoxide, can also be used.
- the polymerization initiators are used in an amount of 0.1 to 1% by weight. based on the graft base monomers. used.
- the radical formers and also the emulsifiers are added to the reaction batch, for example discontinuously as a total amount at the beginning of the reaction, or divided into several portions, batchwise at the beginning and at one or more later times, or continuously during a certain time interval.
- the continuous addition can also take place along a gradient, e.g. can be ascending or descending, linear or exponential, or also stepwise (stair function).
- Molecular weight regulators such as ethylhexylthioglycolate, n- or t-dodecyl mercaptan or other mercaptans, terpinols and dimeric methylstyrene or other compounds suitable for regulating the molecular weight can also be used.
- the molecular weight regulators are added batchwise or continuously to the reaction mixture, as was described above for the radical formers and emulsifiers.
- buffer substances such as Na 2 HPO 4 / NaH PO 4 , sodium hydrogen carbonate or buffer based on citric acid / citrate can also be used. Regulators and buffer substances are used in the usual quantities, so that further details are not necessary.
- the graft base can also be prepared by polymerizing the monomers B 1 in the presence of a finely divided latex (so-called “seed latex procedure" of the polymerization).
- This latex is introduced and can consist of monomers forming rubber-elastic polymers, or also of other monomers, as already mentioned.
- Suitable seed latices consist, for example, of polybutadiene or polystyrene.
- the graft base B1 can be produced in the so-called feed process.
- a certain proportion of the monomers is introduced and the polymerization is started, after which the remainder of the monomers (“feed fraction”) B 1 are added as feed during the polymerization.
- feed fraction the remainder of the monomers
- the feed parameters shape of the gradient, amount, duration, etc.
- the statements made regarding the addition of the radical starter or emulsifier also apply analogously here.
- the exact polymerization conditions, in particular the type, amount and dosage of the emulsifier and the other polymerization auxiliaries are preferably chosen so that the latex of the graft copolymer B obtained has an average particle size, defined by the dso value of the particle size distribution, of 80 to 800 nm, preferably 80 up to 600 nm and particularly preferably 85 to 400 nm.
- the reaction conditions are coordinated with one another in such a way that the polymer particles have a bimodal particle size distribution, that is to say a size distribution with two more or less pronounced maxima.
- the bimodal particle size distribution is preferably achieved by a (partial) agglomeration of the polymer particles. This can be done, for example, as follows: The monomers which form the core are polymerized up to a conversion of usually at least 90%, preferably greater than 95%, based on the monomers used. This turnover is usually reached after 4 to 20 hours.
- the resultant rubber latex has a mean particle size d 5 o of at most 200 nm and a narrow particle size distribution (virtually monodisperse system).
- the rubber latex is agglomerated. This is usually done by adding a dispersion of an acrylic ester polymer. Dispersions of copolymers of (-CC alkyl) esters of acrylic acid, preferably of ethyl acrylate, with 0.1 to 10% by weight of monomers forming polar polymers are preferred. such as acrylic acid, methacrylic acid. Acrylamide or methacrylamide, N-methylolmethacrylamide or N-vinylpyrrolidone, used. A copolymer of 96% by weight of ethyl acrylate and 4% by weight of methacrylamide is particularly preferred.
- the agglomerating dispersion can optionally also contain several of the acrylic polymers mentioned.
- the concentration of the acrylic polymers in the dispersion used for agglomeration should generally be between 3 and 40% by weight.
- 0.2 to 20, preferably 1 to 5 parts by weight of the agglomeration dispersion per 100 parts of the rubber latex, in each case calculated on solids, are used.
- the agglomeration is carried out by adding the agglomeration dispersion to the rubber.
- the rate of addition is normally not critical, generally it takes about 1 to 30 minutes at a temperature between 20 and 90 ° C, preferably between 30 and 75 ° C.
- the rubber latex can also be agglomerated by other agglomerating agents such as acetic anhydride. Agglomeration by pressure or freezing (pressure or freeze agglomeration) is also possible. The methods mentioned are known to the person skilled in the art.
- the rubber particles Under the conditions mentioned, only a part of the rubber particles is agglomerated, so that a bimodal distribution is produced. After agglomeration there are generally more than 50, preferably between 75 and 95% of the particles (number distribution) in the non-agglomerated state.
- the partially agglomerated rubber latex obtained is relatively stable, so that it can be easily stored and transported without coagulation occurring.
- graft copolymer B In order to achieve a bimodal particle size distribution of the graft copolymer B, it is also possible to prepare two different graft copolymers B 'and B ", which differ in their average particle size, separately from one another in the customary manner and to combine the graft copolymers B' and B" in the desired quantitative ratio .
- the graft B2 can be produced under the same conditions as the preparation of the graft B1, the B2 being able to be produced in one or more process steps.
- a two-stage grafting it is possible first to polymerize styrene or .alpha.-methylstyrene alone and then styrene and acrylonitrile in two successive steps.
- This two-stage grafting (first styrene, then styrene / acrylonitrile) is a preferred embodiment. Further details on the preparation of the graft polymers B can be found in DE-A 12 60 135 and 31 49 358 and EP-A-0 735 063.
- graft polymerization on the graft base B 1 again in an aqueous emulsion. It can be carried out in the same system as the polymerization of the graft base, and further emulsifier and initiator can be added. These need not be identical to the emulsifiers or initiators used to prepare the graft base B1. For example, it can be useful as an initiator for the production of the
- Graft base B1 to use a persulfate for the polymerization of the graft shell
- Emulsifier, initiator and polymerization auxiliaries that said in the preparation of the graft base B1.
- the monomer mixture to be grafted on can
- Reaction mixture at once, batchwise in several stages or preferably continuously during the polymerization.
- Monomers B2 are formed, the amounts which are generally below 10% by weight of B2 are assigned to the mass of component B.
- Component C is a layered silicate. Suitable sheet silicates are listed, for example, in Hollemann, Wiberg, Textbook of Inorganic Chemistry, Walter de Gruyter, Berlin, New York 1985, pages 771 to 776.
- Serpentine types such as chrytosil or antigorite, kaolinite types such as dikkite or nacrite or halloysite, pyrophyllite, mica-like silicates of the vermiculite, illite or montmorillonite / beidellite series such as montmorillonite and mica, an aluminosilicate such as muscovite or phitopitol are preferred , used. Mica is very particularly preferred.
- Kaolinite types are also to be understood to mean kaolin, the main mineral of which is kaolinite, and mica-like silicates, also bentonite, the main mineral of which is montmorillonite.
- Polycarbonates D are understood to mean polycarbonates based on homopolycarbonates and copolycarbonates.
- suitable bisphenols are: dihydroxydiphenyls, bis (hydroxyphenyl) alkenes, bis (hydroxyphenyl) ethers.
- All others for the production of poly Carbonate-suitable bisphenols are used, as described, inter alia, in the monograph H. Schnell, Chemistry and Physics of Polycarbonates, Interscience Publishers, New York, 1964, in US 2,999,835 and in DE-A 22 48 817.
- Polycarbonates based on 2,2-bis (4-hydroxyphenyl) propane are particularly preferred.
- the synthesis of the polycarbonates is described, for example, in US 2,999,835 and GB-A 7 72 627.
- Component D has relative viscosities ⁇ spe c / c in the range from 1.1 to 1.5 [ml / g], corresponding to average molecular weights M n in the range from 25,000 to 200,000.
- auxiliaries and fillers can be used as component E.
- Such substances are, for example, lubricants or mold release agents, waxes, pigments, dyes, flame retardants, antioxidants, light stabilizers, fibrous and powdery fillers or reinforcing agents or antistatic agents, and also other additives or mixtures thereof.
- Suitable lubricants and mold release agents are e.g. Stearic acids, stearyl alcohol, stearic acid esters or amides as well as silicone oils, montan waxes and those based on polyethylene and polypropylene.
- Pigments are, for example, titanium dioxide, phthalocyanines, ultramarine blue, iron oxides or carbon black, as well as the entire class of organic pigments.
- Dyes are to be understood as all dyes which can be used for the transparent, semi-transparent or non-transparent coloring of polymers, in particular those which are suitable for coloring styrene copolymers. Dyes of this type are known to the person skilled in the art.
- Suitable flame retardants are, for example, antimony oxides such as Sb 2 ⁇ 3 and / or halogenated organic compounds.
- Suitable antioxidants are, in particular, sterically hindered mononuclear or multinuclear phenolic antioxidants, which can be substituted in various ways and can also be bridged via substituents. In addition to monomers, this also includes oligomeric compounds which can be composed of several basic phenolic bodies. Hydroquinones and hydroquinone analogs and substituted compounds are also suitable, as are antioxidants based on tocopherols and their derivatives. Mixtures of different antioxidants can also be used. In principle, all commercially available compounds or compounds suitable for styrene copolymers can be used, such as Topanol® or Irganox.
- costabilizers in particular phosphorus or sulfur-containing costabilizers, can also be used together with the phenolic antioxidants mentioned above by way of example.
- P- or S-containing costabilizers are known to the person skilled in the art and are commercially available.
- Suitable light stabilizers are e.g. various substituted resorcinols, salicylates, benzotriazoles, benzophenones, HALS (hindered amine light stabilizers), such as those e.g. as Tinuvin "are commercially available.
- fibrous or powdery fillers are carbon or glass fibers in the form of glass fabrics, glass mats or glass silk rovings, cut glass, glass balls and wollastonite, particularly preferably glass fibers. If glass fibers are used, they can be equipped with a size and an adhesion promoter for better compatibility with the blend components. The glass fibers can be incorporated both in the form of short glass fibers and in the form of endless strands (rovings).
- the present invention further relates to thermoplastic foam compositions composed of the components: a: 20 to 100% by weight, based on the sum of components A + B, a hard component composed of one or more copolymers of styrene and / or ⁇ -methylstyrene with acrylonitrile, the proportion of acrylonitrile being less than 28% by weight is, as component A, b: 0 to 80% by weight, based on the suirime of components A + B, of at least one graft copolymer B.
- b 1 10 to 90% by weight of at least one rubber-elastic particulate graft base with a glass transition temperature below 0 ° C.
- Component B1 and B2 10 to 90% by weight of at least one graft made of polystyrene or a copolymer of styrene and / or ⁇ -methylstyrene with acrylonitrile, the proportion of acrylonitrile being less than 28% by weight, as component B2,
- component D at least one polycarbonate as component D, e: 0 to 20 parts by weight, based on the total mass of the components used, of other customary auxiliaries and fillers as component E.
- thermoplastic molding compositions according to the invention show excellent chemical resistance. Production of molding compounds
- a 20 to 100 wt .-%, based on the sum of components A + B, a hard component made of one or more copolymers of styrene and / or ⁇ -methylstyrene with acrylonitrile, the proportion of acrylonitrile 10 to
- component A 50% by weight, as component A, b: 0 to 80% by weight, based on the sum of components A + B, of at least one graft copolymer B.
- Component Bl and b2 10 to 90 wt .-% of at least one graft made of polystyrene or a copolymer of styrene and / or ⁇ -methylstyrene with acrylonitrile, the proportion of acrylonitrile being 10 to 50 wt .-%, as a component
- Components, other conventional auxiliaries and fillers as component E, is preferably carried out by producing the individual components separately.
- Component A is either mixed with component C, optionally intimately mixed with components B, D and E and preferably extruded, or all components are metered into an extruder.
- a and C are mixed in a tumble mixer and optionally intimately mixed with component B and optionally D and E in an extruder.
- the molding composition obtained is then preferably extruded, rapidly cooled and granulated.
- the styrene copolymers prepared from components A, C and, if appropriate, B, D and E and having increased chemical resistance are preferably made up of less than 28% by weight, particularly preferably 18 to 27% by weight, of acrylonitrile the components A and optionally B2, based on the respective component.
- Kl poly (butadiene) rubber
- K2 Poly (buty lacry lat) rubber
- Ba poly (butyl acrylate) graft rubber with a graft pad
- Styrene / acrylonitrile 75/25 Bb poly (butadiene) graft rubber with a styrene / acrylonitrile graft pad
- thermoplastic polymers A were prepared by the process of continuous solution polymerization, as described in the plastics handbook, ed. R. Vieweg and G. Daumiller, volume V "Polystyrol", Carl-Hanser-Verlag Kunststoff 1969, pp 122-124 is. Table 3 summarizes the compositions and properties. Table 3: thermoplastic polymers A (Aa, Ab)
- Aa poly (styrene-co-acrylonitrile)
- Component A was mixed with component C in a tumble mixer.
- the graft rubber B was h with the mixture of components A and C in an extruder type ZSK 30 from Werner and Pfleiderer, at 250 ° C and 250 min "at a throughput of 10 kg / intimately mixed.
- the molding compound was extmdiert and the molten
- the polymer mixture was subjected to rapid cooling by introducing it into a water bath at 30 ° C.
- the solidified molding compound was granulated.
- Table 4 shows various blends of components A, B and C.
- IV and 5V are comparative examples in which component C is missing
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Prostheses (AREA)
- Dental Preparations (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT00915176T ATE283309T1 (de) | 1999-03-11 | 2000-03-10 | Styrolcopolymerisate mit verbesserter chemikalienbeständigkeit |
US09/936,353 US7183349B1 (en) | 1999-03-11 | 2000-03-10 | Styrene copolymers with improved resistance to chemicals |
EP00915176A EP1165676B1 (de) | 1999-03-11 | 2000-03-10 | Styrolcopolymerisate mit verbesserter chemikalienbeständigkeit |
DE50008752T DE50008752D1 (de) | 1999-03-11 | 2000-03-10 | Styrolcopolymerisate mit verbesserter chemikalienbeständigkeit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19910917.6 | 1999-03-11 | ||
DE19910917A DE19910917A1 (de) | 1999-03-11 | 1999-03-11 | Styrolcopolymerisate mit verbesserter Chemikalienbeständigkeit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000053670A1 true WO2000053670A1 (de) | 2000-09-14 |
Family
ID=7900636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/002110 WO2000053670A1 (de) | 1999-03-11 | 2000-03-10 | Styrolcopolymerisate mit verbesserter chemikalienbeständigkeit |
Country Status (6)
Country | Link |
---|---|
US (1) | US7183349B1 (de) |
EP (1) | EP1165676B1 (de) |
AT (1) | ATE283309T1 (de) |
DE (2) | DE19910917A1 (de) |
ES (1) | ES2231173T3 (de) |
WO (1) | WO2000053670A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8669314B2 (en) | 2012-02-03 | 2014-03-11 | Sabic Innovative Plastics Ip B.V. | Hydrolytic stability in polycarbonate compositions |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3806548A1 (de) * | 1987-03-04 | 1988-09-15 | Toyoda Chuo Kenkyusho Kk | Verbundmaterial und verfahren zu dessen herstellung |
DE19630062A1 (de) * | 1996-07-25 | 1998-01-29 | Basf Ag | Formteile für Garten- und Gerätehäuser |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3951906A (en) * | 1972-08-31 | 1976-04-20 | Uniroyal Inc. | Reinforced styrene-acrylonitrile polymers |
EP0789049A1 (de) * | 1996-02-09 | 1997-08-13 | Ciba SC Holding AG | Antistatisch ausgerüstete Polymere |
GB9719929D0 (en) * | 1997-09-18 | 1997-11-19 | Kobe Steel Europ Ltd | Flame retardant polycarbonate-styrene(or acrylate)polymers,and/or copolymers and/or graft polymer/copolymer mixtures |
JP2002504582A (ja) * | 1998-02-20 | 2002-02-12 | バンティコ アクチエンゲゼルシャフト | 親有機性フィロシリケート |
-
1999
- 1999-03-11 DE DE19910917A patent/DE19910917A1/de not_active Withdrawn
-
2000
- 2000-03-10 ES ES00915176T patent/ES2231173T3/es not_active Expired - Lifetime
- 2000-03-10 DE DE50008752T patent/DE50008752D1/de not_active Expired - Lifetime
- 2000-03-10 EP EP00915176A patent/EP1165676B1/de not_active Expired - Lifetime
- 2000-03-10 AT AT00915176T patent/ATE283309T1/de not_active IP Right Cessation
- 2000-03-10 US US09/936,353 patent/US7183349B1/en not_active Expired - Fee Related
- 2000-03-10 WO PCT/EP2000/002110 patent/WO2000053670A1/de active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3806548A1 (de) * | 1987-03-04 | 1988-09-15 | Toyoda Chuo Kenkyusho Kk | Verbundmaterial und verfahren zu dessen herstellung |
DE19630062A1 (de) * | 1996-07-25 | 1998-01-29 | Basf Ag | Formteile für Garten- und Gerätehäuser |
Also Published As
Publication number | Publication date |
---|---|
DE19910917A1 (de) | 2000-09-14 |
EP1165676A1 (de) | 2002-01-02 |
EP1165676B1 (de) | 2004-11-24 |
ES2231173T3 (es) | 2005-05-16 |
ATE283309T1 (de) | 2004-12-15 |
US7183349B1 (en) | 2007-02-27 |
DE50008752D1 (de) | 2004-12-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0450511B1 (de) | Teilförmiges Pfropfpolymerisat und daraus hergestellte thermoplastische Formmasse mit verbesserter Zähigkeit | |
DE2420358B2 (de) | Formmassen | |
EP1893687B1 (de) | Verstärkte thermoplastische formmassen | |
EP0716101A2 (de) | Partikelförmige, vernezte Copolymerisate, ihre Verwendung als Mattierungsmittel und Formmassen mit ihren | |
DE3880528T2 (de) | Mehrschichten-Verbundpolymer mit bimodaler Teilchenverteilung für die Verstärkung von thermoplastischen Matrizen. | |
EP0708145B1 (de) | Thermoplastische Formmassen | |
DE69827302T2 (de) | Stossfeste thermoplastische harzzusammensetzung | |
EP0928314B1 (de) | Thermoplastische formmassen | |
DE69031606T2 (de) | Kern-Schale-Polymer, Herstellung und dessen Verwendung | |
DE10021565A1 (de) | Thermoplastische Formmassen mit verbesserter Schlagzähigkeit | |
EP0253236B1 (de) | Verfahren zur Herstellung thermoplastischer Formmassen | |
WO2001030901A1 (de) | Verfahren zur verminderung des cold stress whitening | |
EP1084187A1 (de) | Thermoplastische formmasse mit hoher durchstossfestigkeit und gutem antistatischen verhalten | |
DE3629150A1 (de) | Thermoplastische formmasse auf basis von abs | |
EP0161452B1 (de) | Thermoplastische Formmassen | |
DE2748565C2 (de) | ||
WO1998032796A1 (de) | Thermoplastische formmassen mit hoher zähigkeit | |
EP1165676B1 (de) | Styrolcopolymerisate mit verbesserter chemikalienbeständigkeit | |
DE3149812A1 (de) | Thermoplastische formmassen | |
DE19910916B4 (de) | Verwendung von Tetrafluorethylenpolymerisaten zur Verbesserung der Chemikalienbeständigkeit, Verringerung der Quellung und Verbesserung der Spannungsrißbeständigkeit von Styrolcopolymerisaten | |
EP0212123B1 (de) | Pfropfkautschuke zur Modifizierung thermoplastischer Formmassen | |
DE19817993A1 (de) | Thermoplastische Formmasse mit hoher Durchstoßfestigkeit und gutem antistatischem Verhalten | |
EP0531848B1 (de) | Verfahren zur Herstellung von Pfropfkautschuken unter reduzierter Koagulatbildung | |
EP0139971B1 (de) | Thermoplastische Formmasse | |
DE68904796T2 (de) | Kautschukmodifizierte Polystyrolharzzusammensetzung. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA JP KR MX US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2000915176 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09936353 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2000915176 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2000915176 Country of ref document: EP |