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WO2004076560A1 - Composition de resine thermoplastique - Google Patents

Composition de resine thermoplastique Download PDF

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Publication number
WO2004076560A1
WO2004076560A1 PCT/JP2003/002168 JP0302168W WO2004076560A1 WO 2004076560 A1 WO2004076560 A1 WO 2004076560A1 JP 0302168 W JP0302168 W JP 0302168W WO 2004076560 A1 WO2004076560 A1 WO 2004076560A1
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WO
WIPO (PCT)
Prior art keywords
group
resin composition
vinyl monomer
thermoplastic resin
silicon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2003/002168
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English (en)
Inventor
Haruhiko Furukawa
Yoshitsugu Morita
Hiroshi Ueki
Koji Shiromoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DuPont Toray Specialty Materials KK
Original Assignee
Dow Corning Toray Silicone Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Corning Toray Silicone Co Ltd filed Critical Dow Corning Toray Silicone Co Ltd
Priority to AU2003208617A priority Critical patent/AU2003208617A1/en
Priority to PCT/JP2003/002168 priority patent/WO2004076560A1/fr
Publication of WO2004076560A1 publication Critical patent/WO2004076560A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • 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
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/062—Copolymers with monomers not covered by C08L33/06
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes

Definitions

  • the present invention provides a thermoplastic resin composition
  • a thermoplastic resin composition comprising a thermoplastic resin, a vinyl-type polymer having at least one silicon-bonded hydrogen atoms in its molecule, and an inorganic powder.
  • the present composition has high thermal stability and moldability and molded products prepared therefrom have improved mechanical strength and color tone.
  • Polycarbonate resins, polypropylene resins, polystyrene resins, ABS resins or other similar thermoplastic resins are known as engineering plastics which are often used in the manufacture of electronic devices, electric appliances, automotives, building materials, construction materials, and other products.
  • the mechanical strength or color tones of such resins can be improved by combining them with various inorganic powder materials.
  • thermoplastic resins typically decrease the thermal resistance of thermoplastic resins.
  • a polycarbonate resin is often combined with a titanium oxide, which is a typical white pigment.
  • this white pigment decreases the polycarbonate's molecular weight.
  • the mechanical strength of the polycarbonate is diminished resulting in a decline of thermal stability and deterioration of color tone.
  • the addition of a titanium oxide to polypropylene resins, high-impact polystyrene resins, ABS resins, or similar organic resins decreases either flowability and moldability, or mechanical strength of these resins.
  • thermoplastic resin compositions containing inorganic powders results in compositions having excellent thermal stability and moldability. It is an object of the present invention to provide to allow for the combination of an inorganic powder with a thermoplastic resin without decreasing the molecular weight of the thermoplastic resin and without impairing the resin's color tone. Still another object is to provide a thermoplastic resin composition which possesses excellent thermal stability and moldability and which, after molding, produces molded articles with high mechanical strength and attractive color tone.
  • thermoplastic resin composition comprising:
  • thermoplastic resin 100 parts by weight of a thermoplastic resin
  • Thermoplastic resin (A) is a moldable component with thermoplastic properties.
  • Component (A) can be any organic resin selected from commonly known "thermoplastic resins" or "thermoplastic elastomers".
  • the following are specific, representative examples of such thermoplastic resins: polyethylene (PE) resins such as low-density polyethylene (LDPE) resin, medium-density polyethylene resin, high-density polyethylene (HDPE) resin, and ultra- high-molecular- weight polyethylene (UHMPE) resin; copolymers of ethylene and propylene, as well as butene-1, pentene-1, hexane-l,4-methylpentene-l, octane-1, decene-1, or of a similar olefin with 4 to 12 carbon atoms; a polypropylene (PP) resin; copolymers of propylene and butene-1, as well as pentene-1, hexane-l,4-methylpenten
  • thermoplastic elastomers such as polystyrene-type thermoplastic elastomer, polyolefin-type thermoplastic elastomer, polyester-type thermoplastic elastomer, polyurethane-type thermoplastic elastomer, polyamide-type thermoplastic elastomer, polyfluoro-type thermoplastic elastomer, polyvinylchloride-rype thermoplastic elastomer, or the like.
  • polycarbonate-type resin such as aromatic polycarbonate resin, polyolefin-type resin such as polyethylene resin, polypropylene resin, and ethylene-propylene copolymer resin, and polystyrene-type resin such as polystyrene resin, high-impact polystyrene resin and ABS resin.
  • Component (B) is a vinyl-type polymer having at least one silicon-bonded hydrogen atoms in its molecule. This component facilitates uniform dispersion of component (C) in component (A) and at the same time prevents deterioration of component (A) by component (C).
  • Component (B) contains in its molecule at least one silicon-bonded hydrogen atoms. Typically, the silicon-bonded hydrogen atom exists in a side molecular chain or side molecular chains of a vinyl-type polymer. Although there are no special restrictions with regard to the state of component (B), it is preferable that at room temperature this component be in a liquid state for convenience as a powder treatment.
  • the vinyl-type polymer can be obtained by subjecting (a) a vinyl monomer and (b) a vinyl-type monomer having in its molecule at least one silicon-bonded hydrogen atoms, or component (b) alone, to radical-polymerization.
  • a vinyl monomer a vinyl monomer having in its molecule at least one silicon-bonded hydrogen atoms, or component (b) alone, to radical-polymerization.
  • component (a) may also comprise a multifunctional vinyl monomer.
  • a multifunctional vinyl monomer The following are representative examples of such monomers: allyl acrylate, allyl methacrylate, or a similar alkenyl acrylate or methacrylate; trimethylolpropane trimethacrylate, pentaerythritol triacrylate, pentaerythritol trimethacrylate, ethyleneglycol diacrylate, ethyleneglycol dimethacrylate, tetraethyleneglycol diacrylate, polyethyleneglycol diacrylate, polyethyleneglycol dimethacrylate, 1,4-butadiol diacrylate, 1,4-butadiol dimethacrylate, 1,6-hexandediol diacrylate, 1,6-hexandediol dimethacrylate, neopentylglycol diacrylate, neopentylglycol dimethacrylate, trimethylolprop
  • component (a) methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, n-propyl acrylate, n-propyl methacrylate, isopropyl acrylate, isopropyl methacrylate or a similar lower alkyl acrylate or methacrylate; n-butyl acrylate, n-butyl methacrylate, isobutyl acrylate, isobutyl methacrylate, tert-butyl acrylate, tert-butyl methacrylate, n-hexyl acrylate, n-hexyl methacrylate, cyclohexyl acrylate, 2-ethylhexyl acrylate, octyl acrylate, lauryl acrylate, stearyl acrylate, or a similar higher alkyl acrylate or methacrylate.
  • a vinyl-type monomer (b) having in its molecule at least one silicon-bonded hydrogen atoms can be represented by the following chemical structural formula (1):
  • R 1 is an aryl group or an alkyl group with 1 to 10 carbon atoms, wherein the alkyl group can be represented by methyl group, ethyl group, propyl group, butyl group, pentyl group, isopropyl group, isobutyl group, cyclopentyl group, or cyclohexyl group.
  • the aforementioned aiyl group can be represented by phenyl group or naphthyl group. Most preferable among these are methyl group or phenyl group, of which methyl group is the most preferable.
  • R 2 designates an aryl group or an alkyl group with 1 to 10 carbon atoms, an aryloxy group or an alkoxy group with 1 to 10 carbon atoms, of which the alkyl group can be represented by methyl group, ethyl group, propyl group, butyl group, pentyl group, isopropyl group, isobutyl group, cyclopentyl group, and cyclohexyl group.
  • the aforementioned aryl group can be represented by phenyl group and naphthyl group.
  • the aforementioned alkoxy group can be represented by methoxy group, ethoxy group, propoxy group, pentyloxy group, isopropoxy group, isobutoxy group, cyclopentyloxy group, and cyclohexyloxy group.
  • the forementioned aryloxy group can be represented by phenoxy group and naphthyloxy group.
  • the methoxy group is the most preferable.
  • X designates a radical-polymerizable organic group, such as, e.g., an organic group that contains an acrylic or a methacrylic group and is represented by the following general formula (2) : R 3 O
  • R 3 and R 5 represent hydrogen atoms or methyl groups
  • R 4 and R 7 represent an alkylene group with 1 to 10 carbon atoms
  • R 6 represents an alkyl group with 1 to 10 carbon atoms
  • e is an integer from 0 to 4; and/is 0 or 1.
  • the vinyl-type monomer (b) is preferably a vinyl monomer having in its molecule at least one silicon-bonded hydrogen atoms represented by the general formula (1) wherein Ri is alkyl group with 1 to 10 carbon atoms, a is 3, b and c are 0, X is represented by the formula (2);
  • R 3 O CH 2 C— C— O— R 4 — (2) wherein R 3 represents hydrogen atom or methyl group, R 4 represents an alkylene group with 1 to 10 carbon atoms.
  • the aforementioned component b can be represented by compounds of the following chemical structural formulae, where Me stands for methyl group:
  • CH 2 CH -C 2 H 4 -Si(OSiHMe 2 ) 3
  • CH 2 CH— Si-(OSiHMe 2 ) 3
  • organopolysiloxanes having on one of their molecular terminals a radical- polymerizable group such as methacryloxy group, acryloxy group, styryl group, alkenyl group, or the like and having at least one silicon-bonded hydrogen atoms in side molecular chains and/ or on another terminals are available for the same purposes. They are preferably organopolysiloxanes having on one of molecular terminals a methacryloxyalkyl group and having silicon-bonded hydrogen atoms in side molecular chains and/or on another terminals.
  • Component (b) should be used in an amount of 0.1 to 100 wt.%, preferably of 1 to 100 wt.% relative to the total weight of components (a) and (b).
  • Component (B) can be prepared by radical-polymerizing both components (a) and (b) or component (b) alone.
  • the radical-polymerization reaction can be carried out in the presence, as well as in the absence, of an organic solvent.
  • an organic solvent When an organic solvent is used, the reaction should be carried out in the presence of a radical initiator for 3 to 20 hours at a temperature from 50 to 150°C.
  • organic solvents are suitable for the aforementioned reaction: hexane, octane, decane, cyclohexane, or a similar aliphatic hydrocarbon; benzene, toluene, xylene, or a similar aromatic hydrocarbon; diethyl ether, dibutylether tetrahydrofuran, dioxane, or a similar ether; acetone, methylethylketone, methylisobutylketone, diisobutylketone, or a similar ketone; methyl acetate, ethyl acetate, butyl acetate, isobutyl acetate, or methanol, ethanol, isopropanol, butanol, or a similar alcohol.
  • Radical initiators may be the same as those used for conventional radical-polymerization reactions.
  • the following are examples of such compounds: 2,2'-azobis (isobutylonitrile), 2,2'-azobis (2-methylbutylonitrile), 2,2'-azobis (2,4-dimethylvaleronitrile), or a similar azobis-type compound; benzoyl peroxide, lauroyl peroxide, tert-butylperoxybenzoate, tert-butylperoxy-2-ethylhexanoate, or a similar organic peroxide.
  • the radical initiator is used in an amount of 0.1 to 5 parts by weight for each 100 parts by weight of the total weight of aforementioned components (a) and (b) or the weight of component (b) alone.
  • the radical-polymerization reaction can be carried out with the addition of a chain-transfer agent that can be represented by 2- mercaptoethanol, butylmercaptane, n-dodecylmercaptane, 3-mercaptopropyl trimethoxysilane, or a similar mercapto compound; ethylene chloride, chloroform, carbon tetrachloride, butyl bromide, 3-chloropropyltrimethoxysilane, or a similar halide.
  • a chain-transfer agent can be represented by 2- mercaptoethanol, butylmercaptane, n-dodecylmercaptane, 3-mercaptopropyl trimethoxysilane, or a similar mercapto compound; ethylene
  • Component (B) may also contain at least one silicon-bonded alkoxy groups, in addition to the silicon-bonded hydrogen atom that is required in its molecule.
  • Such compounds that have silicon-bonded alkoxy groups are obtained by copolymerizing a vinyl monomer having at least one alkoxysilyl groups in the molecule, herein designated as component (c), with components (a) and (b), as defined supra.
  • Component (c) can be represented by the following general formula (5) :
  • R and R are hydrogen atoms or methyl groups; R and R are alkylene groups with 1 to 10 carbon atoms, R 14 is an alkyl group with 1 to 10 carbon atoms; i designates an integer from 0 to 4, andj is 0 or 1.
  • radical-polymerizable organic groups an acryloxymethyl group, 3- acryloxypropyl group, methacryloxymethyl group, 3-methacryloxypropyl group, 4- vinylphenyl group, 3-vinylphenyl group, 4-(2-propenyl) phenyl group, 3-(2-propenyl) phenyl group, 2-(4-vinylphenyl) ethyl group, 2-(3 -vinylphenyl) ethyl group, vinyl group, allyl group, methallyl group, and 5-hexenyl group.
  • R 9 designates an aryl group or an alkyl group with 1 to 10 carbon atoms.
  • the aforementioned alkyl group can be exemplified by methyl group, ethyl group, propyl group, butyl group, pentyl group, isopropyl group, isobutyl group, cyclopentyl group, and cyclohexyl group.
  • the aforementioned aryl group can be exemplified by phenyl group and naphthyl group. The most preferable of theses are methyl group and phenyl group, and especially, methyl group.
  • R 10 designates an aryl group or an alkyl group with 1 to 10 carbon atoms.
  • the alkyl group may comprise methyl group, ethyl group, propyl group, butyl group, pentyl group, isopropyl group, isobutyl group, cyclopentyl group, and cyclohexyl group.
  • the aryl group may comprise phenyl group and naphthyl group. The most preferable of these are the methyl group and the phenyl group, and especially, the methyl group.
  • Component (c) can be exemplified by compounds represented by the following structural formulae:
  • component (B) it is recommended to use component (B) in an amount from 0.01 to 50 parts by weight, preferably from 0.1 to 20 parts by weight, for each 100 parts by weight of component (A). If component (B) is used in an amount less than 0.01 parts by weight, there will be no compounding effect, and if the content of component (B) exceeds 50 parts by weight, the thermoplastic resin composition that comprises a mixture with component (A) will have a reduced molten-state viscosity and an insufficient moldability.
  • Inorganic powder, component (C) can be selected from any of the known conventional inorganic powders, which are typically added, for example, as fillers or pigments to thermoplastic resins.
  • component (C ) is used in an amount from 0.01 to 200 parts by weight, preferably 0.1 to 100 parts by weight, and even more preferably, 0.2 to 50 parts by weight for each 100 parts by weight of component (A). If component (C) is used in an amount less than 0.1 parts by weight, it will not produce any effects. If, on the other hand, component (C) is used in an amount exceeding 200, it will reduce mechanical strength of the obtained thermoplastic resin composition.
  • thermoplastic resin composition of the present invention is prepared from aforementioned components (A) through (C). If necessary, however, the composition may incorporate various known additives which are normally added to thermoplastic resins, such as an ultraviolet-ray absorbent, light-resistant agent, oxidation-resistant agent, plasticizer, antifoaming agent, lubricant, anti-static agent, conductivity-imparting agent, pigment, dye, or a similar coloring agent, compatibility improving agent, cross-linking agent, flame-retarding agent, anti-corrosive agent, anti-shrinking agent, thickener, mold-release agent, bactericidal agent, blue-ink agent, silane-coupling agent, etc.
  • additives which are normally added to thermoplastic resins, such as an ultraviolet-ray absorbent, light-resistant agent, oxidation-resistant agent, plasticizer, antifoaming agent, lubricant, anti-static agent, conductivity-imparting agent, pigment, dye, or a similar coloring agent, compatibility improving agent, cross-linking agent, flame
  • thermoplastic resin composition of the present invention can be easily prepared by uniformly mixing components (A) to (C), if necessary, with the addition of appropriate additives. Mixing can be carried out with the use of a Banbury mixer, kneader- mixer, hot double-roller mill, or similar rotary-type mixers or kneaders, as well as with the use of a single-screw extruder, double-screw extruder, or a similar continuous-action mixing- kneading extruders.
  • a disk-like article having a 4 cm diameter and a 2 mm thickness was molded with the use of a small injection-molding machine (from CSI, Japan) equipped with a die having a mirror- finished chromium-plated working surface. Appearance of the molded article was evaluated by visual observation with naked eye.
  • the surface of the obtained 4 cm-diameter, 2 mm-thick disk-like sample was measured with the use of a color difference meter (Model CR-200 from Minolta Camera Co., Ltd, Japan) and the whiteness degree (%) was determined by means of the formula;
  • Whiteness Degree (%) 100 - [(100 - L) 2 + (a 2 + b 2 )] 1/2 where L is so-called luminosity in the Lab color indication system, and a and b are perceived color indicators used in the Lab color indication system.
  • nBA n-butyl acrylate
  • AMBN 2,2'-azobis-2-methylbutylonitrile
  • the components were then stirred with heating for 6 hours at 70°C in a nitrogen atmosphere.
  • Low- volatility components were removed by means of an aspirator and a vacuum pump while stirring the reaction mixture with heating under vacuum.
  • the obtained reaction mixture was filtered through a 200-mesh metal net filter.
  • the resulting product comprised 88 g of a copolymer of n-butyl acrylate and the vinyl monomer represented by the chemical structural formula (9) having silicon-bonded hydrogen atoms in its molecule ⁇ hereinafter referred to as a PBA copolymer (B-l) ⁇ .
  • Components for preparing this copolymer are shown in Table 1. The copolymer was evaluated with regard to its color tone, and its viscosit.
  • PBA copolymer (B-2) ⁇ a polytbutylacrylate copolymer containing in its molecule silicon-bonded hydrogen atoms and silicon-bonded methoxy groups ⁇ hereinafter referred to as PBA copolymer (B-2) ⁇ were obtained by the same method as in Reference Example 1, with the exception that 15 g of a vinyl monomer represented by the chemical structural formula (9) having silicon bonded hydrogen atoms and 15 g of a vinyl monomer represented by the chemical structural formula (10) were used instead of 30 g of the vinyl monomer represented by the chemical structural formula (9) with silicon-bonded hydrogen atoms. Then, the obtained copolymer was evaluated with regard to its color tone, and its viscosity and molecular weight were measured. The results of the evaluation and measurement are presented in Table 1.
  • the components were kneaded for 10 min. at 280°C and 100 rpm to produce a polycarbonate resin composition.
  • the measured physical properties of the obtained thermoplastic resin composition are summarized in Tables 2 and 3.
  • a polycarbonate resin composition was produced by the same method as in Example 1, with the exception that 1 part of the PBA copolymer (B-2) was used instead of 1 part of the PBA copolymer (B-l).
  • the measured physical properties of the obtained polycarbonate resin composition are summarized in Tables 2 and 3. [0038] Comparative Example 1
  • a polycarbonate resin composition was produced by the same method as in Example 1, with the exception that the PBA copolymer (B-l) was not used.
  • the measured physical properties of the obtained polycarbonate resin composition are summarized in Tables 2 and 3.
  • a polycarbonate resin composition was produced by the same method as in Example 1, with the exception that 1 part of trimethylsiloxy-endblocked methylhydrogenpolysiloxane having a viscosity of 20 mPa-s (SHI 107 from Dow Corning Toray Silicone Co., Ltd., Japan) was used instead of 1 part by weight of the PBA copolymer (B-l).
  • SHI 107 from Dow Corning Toray Silicone Co., Ltd., Japan
  • the measured physical properties of the obtained polycarbonate resin composition are summarized in Tables 2 and 3.
  • a polycarbonate resin composition was produced by the same method as in Example 1. However, 1 part of the PBA copolymer (B-l) used in Example 1 and obtained in Reference Example 1 was replaced by 1 part of trimethylsiloxy-endblocked polydimethylsiloxane in which a part of methyl groups in the side molecular chains were substituted by trimethoxysilylethyl groups with a viscosity of 40 mPa-s (BY16-160 from Dow Corning Toray Silicone Co., Japan). The polydimethylsiloxane used in this example was free of silicon- bonded hydrogen atoms. Characteristics of the obtained polycarbonate resin composition were measured. The measured physical properties of the obtained polycarbonate resin composition are summarized in Tables 2 and 3.
  • a 30 cm 3 LabPlast mill (from Toyo Seiki Seisakusho Ltd., Japan) was filled with 100 parts of a polypropylene resin (NOBLENTM Y101 from Sumitomo Chemical Industries Co., Ltd., Japan), 1 part of the PBA copolymer (B-l) obtained in Reference Example 1, and 10 parts of rutile-type titanium-dioxide powder having an average grain diameter 0.02 to 0.05 ⁇ m (TTOTM-55(B) from Ishihara Sangyo Co., Ltd., Japan). The components were kneaded for 10 min. at 240°C and 100 rpm. As a result, a polypropylene resin composition was produced. The obtained resin composition was evaluated with regard to its appearance. The evaluation result is shown in Table 4. [0042] Comparative Example 4
  • a polypropylene resin composition was produced by the same method as in Example 3, with the exception that the PBA copolymer (B-l) used in Example 3 was not used. As a result, a polypropylene resin composition was produced. The obtained resin composition was evaluated with regard to its appearance. The evaluation result is shown in Table 4.
  • a 30 cm 3 LabPlast mill (from Toyo Seiki Seisakusho Ltd., Japan) was filled with 100 parts of a high-impact polystyrene resin (STYRONTM 492 from Asahi Chemical Industries Co., Ltd., Japan), 1 part of the PBA copolymer (B-l) obtained in Reference Example 1, and 10 parts of a rutile-type titanium-dioxide powder having an average grain diameter of 0.02 to 0.05 ⁇ m (TTOTM-55(B) from Ishihara Sangyo Co., Ltd., Japan). The components were kneaded for 10 min. at 220°C and 100 rpm. As a result, a high-impact polystyrene resin composition was produced. The obtained resin composition was evaluated with regard to its appearance. The evaluation result is shown in Table 4.
  • a high-impact polystyrene resin composition was produced by the same method as in Example 4, with the exception that the PBA polymer (B-l) of Example 3 was not used.
  • the obtained resin composition was evaluated with regard to its appearance. The evaluation result is shown in Table 4.
  • Titanium dioxide parts 10 10 10 10 10

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  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne une composition de résine thermoplastique comprenant (A) une résine thermoplastique, (B) un polymère de type vinylique renfermant au moins un atome d'hydrogène lié à un atome de silicium, en particulier un produit issu de la polymérisation radicalaire (a) d'un monomère vinylique et (b) d'un monomère de type vinylique renfermant au moins un atome d'hydrogène lié à un atome de silicium, et (C) une poudre inorganique. Le composant (B) permet au composant (C) de se combiner avec le composant (A) sans réduire la masse moléculaire du composant (A) et sans diminuer la couleur de la composition. Cette composition de résine thermoplastique présente une excellente stabilité à la chaleur et une excellente aptitude au moulage et permet de produire, après l'étape de moulage, des articles moulés présentant une meilleure résistance mécanique et une meilleure couleur.
PCT/JP2003/002168 2003-02-26 2003-02-26 Composition de resine thermoplastique Ceased WO2004076560A1 (fr)

Priority Applications (2)

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AU2003208617A AU2003208617A1 (en) 2003-02-26 2003-02-26 Thermoplastic resin composition
PCT/JP2003/002168 WO2004076560A1 (fr) 2003-02-26 2003-02-26 Composition de resine thermoplastique

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007143318A1 (fr) * 2006-05-31 2007-12-13 Sabic Innovative Plastics Ip B.V. Formules de polycarbonates thermoplastiques
EP1882718A4 (fr) * 2005-05-19 2008-07-09 Teijin Chemicals Ltd Composition de résine de polycarbonate
US7476339B2 (en) 2006-08-18 2009-01-13 Saint-Gobain Ceramics & Plastics, Inc. Highly filled thermoplastic composites
CN101180363B (zh) * 2005-05-19 2011-11-09 帝人化成株式会社 聚碳酸酯树脂组合物
US20130141195A1 (en) * 2011-06-24 2013-06-06 Nitto Denko Corporation Rare-earth permanent magnet and method for manufacturing rare-earth permanent magnet
WO2015030325A1 (fr) * 2013-08-29 2015-03-05 제일모직주식회사 Composition de résine thermoplastique présentant d'excellentes propriétés de résistance à la décoloration et de résistance aux chocs

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Cited By (11)

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EP1882718A4 (fr) * 2005-05-19 2008-07-09 Teijin Chemicals Ltd Composition de résine de polycarbonate
US7939591B2 (en) 2005-05-19 2011-05-10 Teijin Chemicals, Ltd. Polycarbonate resin composition
CN101180363B (zh) * 2005-05-19 2011-11-09 帝人化成株式会社 聚碳酸酯树脂组合物
WO2007143318A1 (fr) * 2006-05-31 2007-12-13 Sabic Innovative Plastics Ip B.V. Formules de polycarbonates thermoplastiques
US8871858B2 (en) 2006-05-31 2014-10-28 Sabic Global Technologies B.V. Thermoplastic polycarbonate compositions
US7476339B2 (en) 2006-08-18 2009-01-13 Saint-Gobain Ceramics & Plastics, Inc. Highly filled thermoplastic composites
US20130141195A1 (en) * 2011-06-24 2013-06-06 Nitto Denko Corporation Rare-earth permanent magnet and method for manufacturing rare-earth permanent magnet
WO2015030325A1 (fr) * 2013-08-29 2015-03-05 제일모직주식회사 Composition de résine thermoplastique présentant d'excellentes propriétés de résistance à la décoloration et de résistance aux chocs
KR20150025555A (ko) * 2013-08-29 2015-03-11 제일모직주식회사 내변색특성 및 내충격성이 우수한 열가소성 수지 조성물
KR101711241B1 (ko) * 2013-08-29 2017-02-28 롯데첨단소재(주) 내변색특성 및 내충격성이 우수한 열가소성 수지 조성물
US9890278B2 (en) 2013-08-29 2018-02-13 Lotte Advance Materials Co., Ltd. Thermoplastic resin composition with remarkable discoloration resistance and impact resistance

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