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HK1046921A1 - Polycarbonate molding compounds for producing articles with reduced dust attraction - Google Patents

Polycarbonate molding compounds for producing articles with reduced dust attraction Download PDF

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Publication number
HK1046921A1
HK1046921A1 HK02108585.2A HK02108585A HK1046921A1 HK 1046921 A1 HK1046921 A1 HK 1046921A1 HK 02108585 A HK02108585 A HK 02108585A HK 1046921 A1 HK1046921 A1 HK 1046921A1
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HK
Hong Kong
Prior art keywords
hydroxyphenyl
tert
polycarbonate
tinuvin
compositions according
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HK02108585.2A
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Chinese (zh)
Inventor
Dobler Martin
Brenner Axel
Bier Peter
Ebert Wolfgang
Kohler Walter
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拜尔公司
拜爾公司
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Publication of HK1046921A1 publication Critical patent/HK1046921A1/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • 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
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3472—Five-membered rings
    • C08K5/3475—Five-membered rings condensed with carbocyclic rings
    • 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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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

The invention relates to polycarbonate molding compounds for synthetic articles which contain at least one antioxidant and one mold release agent and which have a reduced tendency to attract dust.

Description

Polycarbonate moulding materials for producing articles exhibiting a reduced dust absorption
The invention relates to transparent polycarbonate moulding compositions for plastic articles, which contain at least one heat stabilizer and a mould release agent and exhibit a reduced tendency to attract dust.
The absorption of dust on plastic articles is a very common problem; see, for example, Saechtling, Kunststoff-Taschenbuch, 26 Ausgabe, Hanser Verlag, 1995, Munich, pages 140, below. The deposition of dust occurs, for example, when the injection moldings are stored under industrial conditions. The deposition of dust on transparent moldings is particularly troublesome and limits their function. One important industrial thermoplastic is polycarbonate. In transparent form, for example for the field of optical data storage media, electrical engineering, automotive construction, the building sector, for liquid containers and for other optical applications. For all these applications of polycarbonate, the absorption of dust is undesirable and can impair its function.
One known method of reducing the deposition of dust on plastic bodies is the use of antistatic agents. Antistatic agents for thermoplastics are described in the literature (see, for example, Graprofile, Muller, Plastic Additives, Hanser Verlag, Munich, 1996, 749 and below), which limit the deposition of dust. These antistatic agents improve the electrical conductivity of the plastic molding compositions and thus dissipate the surface charges formed during production and use. The dust particles are thus no longer attracted by an increased amount, and thus have a smaller dust absorption amount.
A distinction is made here between internal and external antistatic agents. The external antistatic agent is deposited on the plastic material after processing, while the internal antistatic agent is added as an additive during processing. For economic reasons, it is generally desirable to use internal antistatics, since no further operations are required after the treatment for the deposition of the antistatics. However, for polycarbonates in transparent form, there are currently no known internal antistatic agents which effectively limit the absorption of dust and at the same time do not impair the desired properties of the material, such as its high transparency, low haze and high impact strength.
One disadvantage of adding an antistatic agent is that it adds to the cost of producing the article as any additive is used. Therefore, it is generally desirable to be able to use as few additives (number and amount) as possible.
Also, the pattern of dust formation is very important for aesthetic reasons. With the hitherto customary molding compositions, as well as circular structures of dimensions from 1 to 20mm, undesirable tree structures frequently occur. Intricate dust patterns such as these are strongly attractive because they result in a sharp contrast between places covered with dust and places almost free of dust. It is desirable for the molding composition to impart a lamellar pattern to the dust on the surface or to cover the surface as uniformly as possible.
Surprisingly, a suitable combination of additives has been found with which the absorption of dust can be significantly limited overall and with which intricate dust patterns can be significantly avoided. The addition of antistatic agents can therefore be dispensed with.
This object is achieved according to the invention by a thermoplastic molding composition comprising polycarbonate as amorphous thermoplastic polymer and at least one antioxidant and a mold release agent, wherein the antioxidant comprises at least one stabilizer selected from the group consisting of:
TPP, tetrakis (2, 4-di-tert-butylphenyl) -4, 4' -biphenylene diphosphonite, Irganox1222 octadecyl-3- (3 ', 5 ' -di-tert-butyl-4 ' -hydroxyphenyl) propionate, IrganoxHP2921，AnoxTB 331，AnoxTB123, or mixtures thereof, is preferably present in an amount between 0.001 and 1 wt%, most preferably between 0.01 and 0.1 wt%.
And the release agent contains at least one substance selected from the group consisting of:
polyols fully or partially esterified with linear or branched fatty acids,
among them, glycerin, ethylene glycol, propylene glycol, pentaerythritol, dipentaerythritol or tripentaerythritol or fatty alcohols are preferably used as the polyhydric alcohol.
Optional release agents according to the present invention include the following compounds:
glycerol, pentaerythritol, dipentaerythritol, tripentaerythritol or diols such as 1, 3-propanediol or 1, 2-ethanediol and mono-or polyesters of branched or unbranched carboxylic acids containing from 1 to 30 carbon atoms and which can also be fully or partially fluorinated.
Particularly preferred carboxylic acids include, inter alia, fatty acids, such as stearic acid or palmitic acid, and mixtures thereof. Here, the unsaturated fatty acids can also optionally be hydrogenated or epoxidized.
Also preferred are oligomeric or poly-ethylene oxides or oligomeric or poly-propylene oxides, or copolymers or oligomers thereof, modified by terminal groups. Suitable end groups include branched or unbranched carboxylic acids containing 1 to 30 carbon atoms and which may also be fully or partially fluorinated.
Also preferred are mono-and polyesters of di-and polycarboxylic acids with branched or unbranched alcohols containing from 1 to 30 carbon atoms, which may also be fully or partially fluorinated. The esters of 1, 2, 4-trimellitic acid are particularly preferred here.
Very particularly preferred mould release agents include Glycerol Monostearate (GMS), triglycerides such as GrinstedtPS102(Danisco, Braband, D.Graprofile), pentaerythritol tetrastearate (PETS), polyol fatty acid esters such as LoxiolEP218(Henkel KG, Dusseldorf, Germany), isocetylstearyl stearate, 1, 3-propanediol esterified with natural fatty acids, e.g. GrinstedtPGMS SPV (Danisco, Braband, D-die), and epoxidized oils such as soybean oil or linseed oil, which can be produced in EdenolB35 and B316 are available under the trade marks from Henkel KG, Dusseldorf, Germany, and the 1, 2, 4-trimellitic esters of monocarboxylic acids, such as the Edenol esters supplied by Henkel KG, Dusseldorf, GermanyW310S. Moreover, mixtures of the abovementioned mold release agents are quite particularly preferred.
The release agents are preferably each used in an amount between 0.001 wt% and 5 wt%, preferably between 0.01 wt% and 1 wt%, more preferably between 0.1 wt% and 1 wt%, and most preferably between 0.2 wt% and 0.6 wt%.
Suitable antioxidants according to the invention are described, for example, in EP 0839623 a1 and EP 0500496A.
Particularly suitable materials in this regard include triarylphosphines, such as Triphenylphosphine (TPP), or aromatic phosphines substituted with linear or branched alkyl chains containing from 1 to 30 carbon atoms. Further suitable materials include aliphatic or aromatic phosphites, such as tris (2, 4-di-tert-butylphenyl) phosphite, sterically hindered phenols, such as octadecyl-3- (3'5 ' -di-tert-butyl-4 ' -hydroxyphenyl) propionate, other compounds such as thioethers, e.g. distearyl 3, 3 ' -thiodipropionate, organic phosphates such as TOF (tri- (2-ethylhexyl) phosphate), siloxanes such as DynasilanGlymo, and mixtures thereof.
Quite particularly preferred substances include TOF, triphenylphosphine, Irganox1222 (diethyl ((3, 5-bis (1, 1-dimethylethyl) -4-hydroxyphenyl) methyl) phosphonate, from Ciba Spezialite Basel, tetrakis (2, 4-di-tert-butylphenyl) -4, 4' -bisphenylene diphosphonite (Irgafos)PEPQ), octadecyl-3- (3 ', 5 ' -di-tert-butyl-4 ' -hydroxyphenyl) propionate (Irganox)1076) Tris (2, 4-di-tert-butylphenyl) phosphite (Irgafos)168) And AnoxTB123 (a mixture of octadecyl- (3- (3 ', 5' -di-tert-butyl-4 '-hydroxyphenyl) propionate, tris (2, 4-di-tert-butylphenyl) phosphite and distearyl 3, 3' -thiodipropionate) (product of Great Lakes Chemical Corp. Lafayette, IN, USA), AnoxTB331 (a mixture of tris (2, 4-di-tert-butyl-4-hydroxyhydrocinnamate) methane, tris (2, 4-di-tert-butylphenyl) phosphite and distearyl 3, 3' -thiodipropionate) (products of Great Lakes Chemical Corp. Lafayette, IN, USA), and IrganoxHP2921 octadecyl- (3- (3 ', 5 ' -di-tert-butyl-4 ' -hydroxyphenyl) propionate, tris (2, 4-di-tert-butylphenyl) phosphite and IrganoxHP 1365, 7-di-tert-butyl-3- (3, 4-dimethylphenyl) -2(3H) -benzofuranone mixture) (product of Ciba Spezialitatenchemie, Basel).
The antioxidants are preferably each used in an amount between 0.001 and 10 wt%, more preferably between 0.01 and 0.1 wt% and most preferably between 0.02 and 0.06 wt%.
According to the invention, further suitable UV absorbers are optionally incorporated, as described, for example, in EP 0839623A 1 and EP 0500496.
Derivatives of benzotriazole, derivatives of benzophenone, and in some cases, other compounds such as arylates are particularly suitable.
Particularly preferred substances according to the invention include hydroxy-benzotriazoles, such as 2- (3 ', 5 ' -bis (1, 1-dimethylbenzyl) -2 ' -hydroxyphenyl) benzotriazole (Tinuvin)234, Basel, Ciba Spezialitatenchemie), 2- (2 '-hydroxy-5' - (tert-octyl) -phenyl) benzotriazole (Tinuvin)329, Ciba Spezialitatenchemie, Basel), 2- (2 ' -hydroxy-3 ' - (2-butyl) -5 ' - (tert-butyl) -phenyl) -benzotriazole (Tinuvin)350, Ciba Spezialitatenchemie, Basel), bis- (3- (2H-benzotriazolyl) -2-hydroxy-5-tert-octyl) methane (Tinuvin)360, Basel, 2- (4-hexyloxy-2-hydroxyphenyl) -4, 6-diphenyl-1, 3, 5-triazine (Tinuvin)1577, Basel, Ciba Spezialitatenchemie), and benzophenone, 2, 4-dihydroxy-benzophenone (Chimasorb 22) CibaSpezialittenchemie，Basel)。
The UV absorbers are each preferably used in an amount of between 0.001 and 10 wt%, preferably between 0.01 and 1 wt%, more preferably between 0.1 and 1 wt% and most preferably between 0.2 and 0.6 wt%.
Other additives may optionally be used, such as flame retardants, fillers, blowing agents, colorants, pigments, optical brighteners, and nucleating agents, among others, which are known in the literature. They are preferably each contained in an amount of up to 5% by weight, preferably from 0.01 to 5% by weight, relative to the total mixture, most preferably from 0.01% to 1% by weight, relative to the amount of plastic material. Mixtures of these additives are also suitable.
It is of course possible to add all customary antistatic agents to the mixture without departing from the teaching according to the invention. However, the use of these substances is not essential. Suitable antistatic agents are listed in Gratzter, Muller, "Plastic Additives", 4thEd. Munich 1996, suite 749-773.
Transparent thermoplastics are preferably used as transparent plastic materials, particularly preferably polymers of ethylenically unsaturated monomers and/or polycondensates of difunctional reactive compounds.
Particularly suitable plastics materials include polycarbonates or copolycarbonates based on dihydric phenols, polymerized or copolymerized acrylates and polymerized or copolymerized methacrylates, such as polymerized or copolymerized methyl methacrylate, and copolymers with styrene, such as transparent polystyrene-acrylonitrile (SAN), and also transparent cycloolefins, polycondensates or copolycondensates of terephthalic acid, such as polymerized or copolymerized ethylene terephthalate (PET or CoPET) or glycol-modified PET (PETG).
Excellent results will be obtained with polycarbonates or copolycarbonates by those skilled in the art.
Thermoplastic, aromatic polycarbonates in the sense of the present invention include homopolycarbonates and copolycarbonates; these polycarbonates may be linear or branched in a known manner.
These polycarbonates are produced in a known manner from diphenols and carbonic acid derivatives, optionally using chain terminators and optionally using branching agents.
Details of polycarbonate production have been recorded in a number of patent documents over the course of approximately 40 years. By way of example only, reference may be made here to Schnell, "Chemistry and Physics of Polycarbonates", Polymer Reviews, Volume 9, Interscience publishers, New York, London, Sydney 1964, reference D.Freetag, U.G.G., P.R.Muller, H.Nouvertne', BAYER AG, "Polycarbonates" in the Encyclopedia of Polymer Science and Engineering, Volume 11, Second Edition, 1988, Seiten648-718, and dres.U.G.G., K.Kirchner und P.R.Muller "Polycarbonates" in Becker/Brann, Kunstoff-Handch, Bauch 3/1, cell lake, weed, cell lake 299, Verlag, cell 299, cell lake, Verlag.
Examples of suitable diphenols for the production of the polycarbonates include hydroquinone, resorcinol, dihydroxybiphenyl, bis- (hydroxyphenyl) -alkanes, bis (hydroxyphenyl) -cycloalkanes, bis- (hydroxyphenyl) -sulfides, bis- (hydroxyphenyl) ethers, bis- (hydroxyphenyl) ketones, bis- (hydroxyphenyl) sulfones, bis- (hydroxyphenyl) sulfoxides and a, a' -bis- (hydroxyphenyl) diisopropylbenzenes, as well as their nuclear-alkylated and nuclear-halogenated compounds.
Preferred diphenols are 4, 4' -dihydroxydiphenyl, 2, 2-bis- (4-hydroxyphenyl) -propane, 2, 4-bis- (4-hydroxyphenyl) -2-methylbutane, 1, 1-bis- (4-hydroxyphenyl) -p-diisopropylbenzene, 2, 2-bis- (3-methyl-4-hydroxyphenyl) -propane, 2, 2-bis- (3-chloro-4-hydroxyphenyl) -propane, bis- (3, 5-dimethyl-4-hydroxyphenyl) -methane, 2, 2-bis- (3, 5-dimethyl-4-hydroxyphenyl) -propane, bis- (3, 5-dimethyl-4-hydroxyphenyl) -sulfone, 2, 4-bis- (3, 5-dimethyl-4-hydroxyphenyl) -2-methylbutane, 1, 1-bis (3, 5-dimethyl-4-hydroxyphenyl) -p-diisopropylbenzene, 2, 2-bis- (3, 5-dichloro-4-hydroxyphenyl) -propane, 2, 2-bis- (3, 5-dibromo-4-hydroxyphenyl) -propane and 1, 1-bis- (4-hydroxyphenyl) -3, 3, 5-trimethylcyclohexane.
Particularly preferred diphenols are 2, 2-bis- (4-hydroxyphenyl) -propane, 2, 2-bis- (3, 5-dimethyl-4-hydroxyphenyl) -propane, 2, 2-bis- (3, 5-dichloro-4-hydroxyphenyl) -propane, 2, 2-bis- (3, 5-dibromo-4-hydroxyphenyl) -propane, 1, 1-bis- (4-hydroxyphenyl) -cyclohexane and 1, 1-bis- (4-hydroxyphenyl) -3, 3, 5-trimethylcyclohexane.
These and other suitable dihydric phenols are described, for example, in U.S. Pat. Nos. 3,659,983,3148172,2991273,3271367,4982014 and 2999846, German published patent specifications 1570703, 2063050, 2036052, 2211956 and 3832396, French patent 1561518, the subject-matter of H.Schnell, "chemistry and Physics of Polycarbonates", Interscience Publishers, New York 1964 and Japanese published patent specifications 62039/1986, 62040/1986 and 105550/1986.
In the case of homopolycarbonates, only one dihydric phenol is used, and in the case of copolycarbonates, a plurality of dihydric phenols are used.
Examples of suitable carbonic acid derivatives include phosgene or diphenyl carbonate.
Suitable chain terminators include monophenols and monocarboxylic acids. Suitable monophenols include phenol itself, alkylphenols such as cresol, p-tert-butylphenol, p-n-octylphenol, p-isooctylphenol, p-n-nonylphenol and p-isononylphenol, halophenols such as p-chlorophenol, 2, 4-dichlorophenol, p-bromophenol, and 2, 4, 6-tribromophenol, 2, 4, 6-triiodophenol, p-iodophenol and mixtures thereof.
A preferred chain terminator is p-tert-butylphenol.
Suitable monocarboxylic acids include benzoic acid, alkylbenzoic acids and halobenzoic acids.
Preferred chain terminators include phenols of the formula (I):
wherein R is hydrogen, tert-butyl or C, branched or unbranched8And/or C9An alkyl group.
The amount of chain terminators to be used is in the range from 0.1 mol% to 5 mol%, referred to the moles of diphenols used in each case. The chain terminators may be added before, during or after phosgenation.
Suitable branching agents are trifunctional compounds, or compounds having a functionality of greater than 3, which are known in polycarbonate chemistry, especially those having three or more phenolic hydroxyl groups.
Examples of suitable branching agents include phloroglucinol, 4, 6-dimethyl-2, 4, 6-tris (4-hydroxyphenyl) -hept-2-ene, 4, 6-dimethyl-2, 4, 6-tris (4-hydroxyphenyl) heptane, 1, 3, 5-tris (4-hydroxyphenyl) benzene, 1, 1, 1-tris (4-hydroxyphenyl) ethane, tris- (4-hydroxyphenyl) phenylmethane, 2, 2-bis [4, 4-bis (4-hydroxyphenyl) cyclohexyl ] propane, 2, 4-bis (4-hydroxyphenyl isopropyl) phenol, 2, 6-bis (2-hydroxy-5' -methylbenzyl) -4-methylphenol, 2- (4-hydroxyphenyl) -2- (2, 4-dihydroxyphenyl) propane, hexa- (4- (4-hydroxyphenylisopropyl) phenyl) orthoterephthalate (orthoterphthalate), tetrakis- (4-hydroxyphenyl) methane, tetrakis- (4- (4-hydroxyphenylisopropyl) phenoxy) methane and 1, 4-bis (4', 4 "-dihydroxytriphenyl) methyl) benzene as well as 2, 4-dihydroxybenzoic acid, 1, 3, 5-trimellitic acid, cyanuric chloride and3, 3-bis (3-methyl-4-hydroxyphenyl) -2-oxo-2, 3-dihydroindole.
The amount of branching agent optionally used is in the range from 0.05 mol% to 2 mol%, again relative to the moles of diphenols used in each case.
The branching agents may be present in the aqueous alkaline phase together with the diphenols and the chain terminators beforehand or they may be added dissolved in an organic solvent before phosgenation. For the transesterification process, a branching agent is used with the dihydric phenol.
All these methods for producing thermoplastic polycarbonates are familiar to the person skilled in the art.
In order to obtain improved compositions, it is possible for the thermoplastic materials, preferably the poly-and copolycarbonates, to additionally contain at least one further, usually present additive, such as flame retardants, fillers, blowing agents, colorants, pigments, optical brighteners, transesterification catalysts and nucleating agents, etc., preferably in amounts of in each case up to 5% by weight, preferably from 0.01 to 5% by weight, relative to the total mixture, most preferably from 0.01% to 1% by weight, relative to the amount of plastic material.
The polymer composition obtained in this way may be shaped into moulded articles such as parts of toys, fibres, films, tapes (die), sheets, coils (Stegplatten), containers, pipes and other profiles (Profile) by conventional methods such as hot pressing, spinning, extrusion or injection moulding. The polymer composition can also be processed into cast films. The present invention therefore further relates to the use of the polymer compositions according to the invention for producing moldings. The use of multilayer systems is also of interest.
For this application, the polymer compositions according to the invention are deposited as thin layers on moldings made from conventional polymers. The deposition can be carried out simultaneously with the molding of the matrix (Grundk * rper) or immediately after the molding of the matrix, for example by coextrusion or multicomponent injection molding. Deposition can also be carried out, for example, by lamination with a film or by coating with a solution on the finished molded substrate.
The polycarbonate moulding compositions according to the invention can be processed into mouldings, for example by extruding the polycarbonate isolated in a known manner to form pellets and then by processing the pellets, optionally after addition of the aforementioned additives, in a known manner by injection moulding to form various articles.
The moldings produced from the polycarbonate molding compositions according to the invention can be used for a wide variety of applications, in particular in cases where the absorption of dust is undesirable for the reasons mentioned above. Particularly suitable applications are its use in optical data carriers such as CDs, other applications including automotive components such as window glass elements, plastic lens housings, and its use in extruded sheets, such as solid sheets, double-or multilayer webs, optionally also having one or more coextruded layers, and its use in injection molded parts such as food containers, electrical components, in spectacle lenses (Brillengl die-cutter) or for decorating objects.
The polycarbonate moulding compositions according to the invention can also be blended with other polymers which are customary. Transparent plastics are particularly suitable in this respect. Transparent thermoplastics are preferably used as transparent plastics, most preferably polymers of ethylenically unsaturated monomers and/or polycondensates of difunctional reactive compounds.
Plastics particularly suitable for these mixtures include polymerized or copolymerized acrylates and methacrylates, for example polymerized or copolymerized methyl methacrylate, and also particularly copolymers of styrene, for example transparent polystyrene-acrylonitrile (SAN). Others include transparent cycloolefins, polycondensates or copolycondensates of terephthalic acid, such as polymerized or copolymerized ethylene terephthalate (PET or CoPET) or glycol-modified PET (PETG).
Examples
For the preparation of the molding compositions or sample articles, unless otherwise stated, the average molecular weight is approximately 30,000(Mw, determined by GPC), the solution viscosity: eta 1.293 non-additive, unstabilized polycarbonate (Makrolon)2808, manufactured by Bayer AG, Leverkusen) was compounded with the amounts of additives at 340 ℃ in a twin-screw extruder, followed by granulation. Rectangular plates (155 mm. times.75 mm. times.2 mm) were subsequently injection molded from the pellets.
In order to be able to investigate the dust uptake in laboratory tests, the injection-molded panels were exposed to an atmosphere containing flying dust. A2-liter beaker containing a triangular magnetic stir bar 80mm in length was filled to a height of about 1cm with the dust. The dust flies up by means of a magnetic stirrer. After the stirrer was stopped, the sample article was exposed to the dust atmosphere for 7 seconds. Depending on the sample used, more or less dust is deposited on the sample. The transmission and Haze (Traubung) were then determined using a Haze-Gard Plus instrument manufactured by BYK-Gardner GmbH, D-82538 Geretsried, as specified by ASTM D1003. If the dust deposition is not uniform, an average of the plurality of measured values is determined. The transmittance and haze were measured at 18 points evenly distributed on a rectangular plate in the form of 6 × 3 squares. Carbon dust was used as dust (dust used here was 20g of activated carbon supplied by Riedel-de Haen, Seelze, Germany, artiskel No.18003) because the effects and differences could be identified more clearly and measured more easily than when ordinary household dust was used.
Also, the increase in weight of the panels was measured after they were exposed to dust. A conventional Mettler Toledo AE200 laboratory balance (table 3) was used.
The dust patterns in table 2 were evaluated by naked eye. A panel exhibiting a complicated dust pattern or high contrast was evaluated as negative (-). Those having a large area of uniform dust pattern were rated (+) as follows.
Table 1:
when in Makrolon2808 into the basic molding material and injection molded into sheets, less dust attracting additives.
Examples Additive agent Transmittance of light Haze degree
1 0.025％TPP，0.3％Ceraphyl494，0.3％Tinuvin350 78.6±4.8 4.6±1.6
2 0.05％AnoxTB331，0.3％GMS，0.3％Tinuvin350 83.5±4.3 2.8±1.4
3 0.03％AnoxTB123，0.3％GrinstedtPGMS SPV，0.5％EdenolB35，0.3％Tinuvin329 78.3±4.7 4.9±3.5
Comparative examples Without additives 76.8±5.7 5.6±2.4
Table 2:
examples of additives which form a large flake dust pattern when incorporated in the molding composition and injection molded into a plate (+ large flake dust pattern, -Complex dust pattern)
Examples Additive agent Dust pattern
Comparative example 1 Makrolon2808 no additives -
Comparative example 2 MakrolonCD2005, No additives -
Comparative example 3 0.03％Irganox1076，0.3％PETS，0.3％Tinuvin350 -
Comparative example 4 MakrolonDP1-1816, no additives -
1 0.025％TPP，0.3％GMS，0.3％Tinuvin350 -
Examples Additive agent Dust pattern
2 0.025％TPP，0.3％GrinstedtPGMS SPV，0.3％Tinuvin350 +
3 0.025％TPP，0.3％LoxiolEP218，0.3％Tinuvin350 -
4 0.025％TPP，0.3％Ceraphyl494，0.3％Tinuvin350 +
5 0.03％IrgafosPEPQ，0.3％GMS，0.3％Tinuvin350 -
6 0.03IrgafosPEPQ，0.3％GrinstedtPGMS SPV，0.3％Tinuvin350 -
8 0.03％IrgafosPEPQ，0.3％LoxiolEP218，0.3％Tinuvin350 +
9 0.03％Irganox1222，0.3％GMS，0.3％Tinuvin350 +
10 0.03％Irganox1222，0.3％PETS，0.3％Tinuvin350 +
11 0.03％Irganox1222，0.3％GrinstedtPGMS SPV，0.3％Tinuvin350 +
12 0.03％Irganox1222，0.3％LoxiolEP218，0.3％Tinuvin350 -
13 0.03％Irganox1222，0.3％Ceraphyl494，0.3％Tinuvin350 -
14 0.03％Irganox1222，0.3％GrinstedtPS102，0.3％Tinuvin329 +
15 0.03％TOF，0.3％GMS，0.3％Tinuvin350 -
17 0.03％IrganoxHP2921，0.3％GMS，0.3％Tinuvin350 +
18 0.03％IrganoxHP2921，0.3％PETS，0.3％Tinuvin350 +
19 0.03％IrganoxHP2921，0.3％GrinstedtPGMS SPV，0.3％Tinuvin350 -
20 0.03％IrganoxHP2921，0.3％LoxiolEP218，0.3％Tinuvin350 +
22 0.05％AnoxTB331，0.3％LoxiolP728，0.3％Tinuvin350 +
23 0.05％AnoxTB331，0.3％LoxiolVPG2571，0.3％Tinuvin350 +
24 0.05％AnoxTB331，0.3％Ceraphyl791，0.3％Tinuvin350 +
25 0.03％AnoxTB123，0.3％GMS，0.3％Tinuvin350 +
26 0.03％AnoxTB123，0.3％GrinstedtPGMS SPV，0.3％Tinuvin329 +
27 0.03％AnoxTB123，0.3％LoxiolEP218，0.3％Tinuvin350 -
29 0.03％AnoxTB123，0.3％Ceraphyl494，0.3％Tinuvin329 +
Examples Additive agent Dust pattern
30 0.05％AnoxTB331，0.3％GMS，0.3％Tinuvin 350 +
31 0.03％AnoxTB331，0.3％GrinstedtPGMS SPV，0.3％Tinuvin350 -
32 0.05％AnoxTB331，0.3％LoxiolEP218，0.3％Tinuvin350 +
33 0.05％AnoxTB331，0.3％PETS，0.3％Tinuvin350 +
34 0.05％Anox TB331，0.3％Ceraphyl494，0.3％Tinuvin350 +
35 0.05％TPP，0.3％PETS，0.5％EdenolB35，0.3％Tinuvin329 +
36 0.03％Irganox1222，0.3％GrinstedtPGMS SPV，0.5％EdenolB35，0.3％Tinuvin350 +
37 0.03％TOF，0.3％GrinstedtPGMS SPV，0.5％EdenolB35，0.3％Tinuvin350 +
38 0.03％AnoxTB123，0.3％GrinstedtPGMS SPV，0.5％EdenolB35，0.3％Tinuvin329 +
39 0.03％AnoxTB331，0.3％PETS，0.5％EdenolB35，0.3％Tinuvin329 +
42 0.05％AnoxTB331，0.3％PETS，0.5％EdenolW310S，0.3％Tinuvin350 +
43 0.03％Irganox1222，0.3％PETS，0.5％EdenolB316，0.3％Tinuvin329 +
44 0.03％AnoxTB123，0.3％GrinstedtPGMS SPV，0.5％EdenolB316，0.3％Tinuvin329 +
45 0.03％AnoxTB123，0.3％PETS，0.5％EdenolB316，0.3％Tinuvin329 +
46 0.03％Irganox1222，0.3％GrinstedtPS102，0.3％EdenolB316，0.3％Tinuvin329 +
47 0.03％Irganox1222，0.3％GrinstedtPGMS SPV，0.3％EdenolB316，0.3％Tinuvin329 +
Table 3:
weight gain of rectangular sheet after exposure to carbon dust
Examples Molding composition mg carbon dust
Comparative example 1 Makrolon2808 7
Comparative example 2 MakrolonA12647 7
1 0.025％TPP，0.3％Ceraphyl494，0.3％Tinuvin350 6
2 0.03％AnoxTB123，0.3％GrinstedtPGMS SPV，0.5％EdenolB35，0.3％Tinuvin329 3
3 TPP/Grinstedt PGMS SPV/Tin350 6
4 TPP/Loxiol218/Tin350 7
5 Irgafos 168/Grinstedt PGMS SPV/Tin350 9
6 Irgafos PEPQ/Grinstedt PGMS SPV/Tin350 8
7 Irgafos PEPQ/Loxiol EP218/Tin350 8
8 Irganox 1076/Grinstedt PGMS SPV/Tin350 8
9 Irganox 1222/Grinstedt PGMS SPV/Tin350 9
10 Irgafos 168/PETS/Tin350 8
11 Irganox 1222/Ceraphyl 494/Tin350 5
12 Irganox HP2921/Grinstedt PGMS SPV/Tin350 5
13 Irganox HP2921/Loxiol EP218/Tin350 6
Tables 1 to 3 clearly show that the moldings produced from the molding compositions according to the invention attract less dust after exposure to dust, exhibit better transmission, and produce a dust pattern which is more visually pleasant and more flake-like, compared with moldings produced from conventional molding compositions.

Claims (17)

1. Polycarbonate moulding materials containing at least one antioxidant and a mould release agent, characterised in that the antioxidant contains at least one stabiliser selected from the group consisting of:
TPP, tetrakis (2, 4-di-tert-butylphenyl) -4, 4' -biphenylene diphosphonite, Irganox1222 octadecyl-3- (3 ', 5 ' -di-tert-butyl-4 ' -hydroxyphenyl) propionate, IrganoxHP2921，AnoxTB331，AnoxTB123, or mixtures thereof, preferably in an amount of between 0.001 and 1 wt%, most preferably between 0.01 and 0.1 wt%。
And the release agent contains at least one substance selected from the group consisting of:
polyols fully or partially esterified with linear or branched fatty acids,
among them, glycerin, ethylene glycol, propylene glycol, pentaerythritol, dipentaerythritol or tripentaerythritol or fatty alcohols are preferably used as the polyhydric alcohol.
2. Polycarbonate molding composition according to claim 1, characterized in that the ceramiyl group494，GMS，GrinstedtPGMS SPV，LoxiolEP218, PETS, isocetylstearyl stearate, EdenolB35，EdenolB316 or mixtures thereof are used as mould release agents, preferably in an amount of between 0.01 and 5 wt.%, most preferably between 0.1 and 1 wt.%.
3. Polycarbonate molding composition according to at least one of the preceding claims, characterized in that a mixture of PETS and Edenol or a mixture of Grinstedt and Edenol is used.
4. Polycarbonate molding composition according to at least one of the preceding claims, characterized in that at least one derivative of benzotriazole and/or at least one derivative of benzophenone is also contained as a UV stabilizer.
5. The polycarbonate molding composition according to claim 4, characterized in that 2- (2 ' -hydroxy-3 ' - (2-butyl) -5 ' - (tert-butyl) -phenyl) -benzotriazole (Tinuvin)350) 2- (2 '-hydroxy-5' - (tert-octyl) -phenyl) benzotriazole, bis- (3- (2H-benzotriazolyl) -2-hydroxy-5-tert-octyl) methane, 2- (4-hexyloxy-2-hydroxyphenyl) -4, 6-diphenyl-1, 3, 5-triazine or mixtures thereof are used as UV stabilizers, preferably in an amount of between 0.01 and 10 wt.%, most preferably between 0.1 and 1 wt.%.
6. Polycarbonate molding composition according to at least one of the preceding claims, characterized in that additionally an epoxidized oil, such as epoxidized linseed oil or epoxidized soybean oil or mixtures thereof, is used, preferably in an amount of between 0.01 and 10 wt.%, most preferably between 0.1 and 1 wt.%.
7. Polycarbonate molding composition according to at least one of the preceding claims, characterized in that it comprises octadecyl-3- (3 ', 5 ' -di-tert-butyl-4 ' -hydroxyphenyl) propionate (Irganox)1076)。
8. Polycarbonate molding composition according to at least one of the preceding claims, characterized in that it additionally contains a commercially available antistatic agent, preferably in an amount of between 0.001 and3 wt.%, more preferably in an amount of between 0.01 and 1.5 wt.%, most preferably in an amount of between 0.1 and 1 wt.%.
9. Use of the molding compositions according to any of claims 1 to 8 for producing moldings.
10. Use of the molding compositions according to any of claims 1 to 8 for the production of optical data storage media.
11. Use of the molding compositions according to any of claims 1 to 8 for producing extruded moldings.
12. Use of the molding compositions according to any of claims 1 to 8 for producing multilayer systems.
13. Use of the molding compositions according to any of claims 1 to 8 for the production of injection moldings.
14. Use of the molding compositions according to any of claims 1 to 8 for producing automotive window glass, lighting elements such as plastic lens housings or for other automotive parts.
15. Use of the molding compositions according to any of claims 1 to 8 for producing injection-molded parts, such as food containers, electrical components or decorative objects.
16. Use of the molding compositions according to any of claims 1 to 8 for the production of spectacles.
17. A molded article produced from the polycarbonate molding composition as defined in claims 1 to 9.
HK02108585.2A 1999-06-01 2000-05-19 Polycarbonate molding compounds for producing articles with reduced dust attraction HK1046921A1 (en)

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60104313T2 (en) * 2000-05-19 2005-08-25 Dow Global Technologies, Inc., Midland POLYCARBONATE COMPOSITIONS CONTAIN HEAVY UV-ABSORBENT COMPOUNDS
DE10114803A1 (en) * 2001-03-26 2002-10-10 Bayer Ag New polymer blends
WO2008069336A1 (en) * 2006-12-06 2008-06-12 Teijin Chemicals Ltd. Eyeglass lens
DE102009043513A1 (en) 2009-09-30 2011-03-31 Bayer Materialscience Ag Polycarbonate compositions with improved optical properties
DE102009043511A1 (en) * 2009-09-30 2011-03-31 Bayer Materialscience Ag UV-stable polycarbonate composition with improved properties
DE102009043512A1 (en) * 2009-09-30 2011-03-31 Bayer Materialscience Ag Polycarbonate composition with improved melt flowability
EP2374829A1 (en) * 2010-04-07 2011-10-12 Bayer MaterialScience AG Branched melt polycarbonate with low proportion of faulty structures
KR20150065724A (en) 2012-09-28 2015-06-15 사빅 글로벌 테크놀러지스 비.브이. Polycarbonate composition to produce optical quality products with high quality and good processability
KR101691964B1 (en) 2012-09-28 2017-01-02 사빅 글로벌 테크놀러지스 비.브이. Improved release polycarbonate compositions
US9644075B2 (en) 2013-06-21 2017-05-09 Sabic Global Technologies B.V. Polycarbonate composition to produce optical quality products with high quality and good processability
WO2015132740A1 (en) 2014-03-06 2015-09-11 Sabic Global Technologies B.V. Enhanced polycarbonate extrusion grades
JP2021178901A (en) * 2020-05-12 2021-11-18 帝人株式会社 Polycarbonate resin composition and its molded products

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231801A (en) * 1985-08-02 1987-02-10 Teijin Chem Ltd Optical molded products
JPH01284549A (en) * 1988-05-12 1989-11-15 Mitsubishi Gas Chem Co Inc Optical molding materials
JP2645741B2 (en) * 1989-01-25 1997-08-25 出光石油化学株式会社 Antistatic polycarbonate composition
JPH02251560A (en) * 1989-03-24 1990-10-09 Idemitsu Petrochem Co Ltd Resin composition for eyeglass
TW222292B (en) * 1991-02-21 1994-04-11 Ciba Geigy Ag
US5510450A (en) * 1992-02-21 1996-04-23 General Electric Company Method of producing copolymerized polycarbonates
US5278279A (en) * 1992-03-11 1994-01-11 Daicel Chemical Industries, Ltd. Process for producing (co)polycarbonate with transesterification catalyst and compound
JPH05262970A (en) * 1992-03-17 1993-10-12 Nippon G Ii Plast Kk Polycarbonate-based resin composition
JP3329346B2 (en) * 1993-07-22 2002-09-30 三菱瓦斯化学株式会社 Weather resistant polycarbonate resin molded product
JP3031401B2 (en) * 1993-11-04 2000-04-10 三菱瓦斯化学株式会社 Molding material for optical recording media
DE4445786A1 (en) * 1994-12-21 1996-06-27 Bayer Ag Arylphosphine-containing polycarbonates
EP0839623B1 (en) * 1996-10-30 2001-01-31 Ciba SC Holding AG Stabiliser combination for rotomolding process
US5717021A (en) * 1996-11-18 1998-02-10 General Electric Company Polycarbonate/ABS blends
JP3617893B2 (en) * 1996-12-13 2005-02-09 住友ダウ株式会社 Polycarbonate resin composition with excellent residence heat stability
DE19732090C1 (en) * 1997-07-25 1999-03-25 Bayer Ag Polycarbonate molding compounds, process for their preparation and their use as coatings in coextruded plates
JP3662420B2 (en) * 1998-08-13 2005-06-22 出光興産株式会社 Thermoplastic resin composition and injection molded article

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